From a969e853e7d8a43f2f1c7579d5a3e4fc1aa2a2fc Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:51:51 -0400
Subject: [PATCH] Generate tests
---
.../dstr-dflt-ary-init-iter-close.js | 72 +++++++++++
.../dstr-dflt-ary-init-iter-get-err.js | 57 +++++++++
.../dstr-dflt-ary-init-iter-no-close.js | 72 +++++++++++
.../dstr-dflt-ary-name-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 64 ++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-init.js | 70 +++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-iter.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-iter.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-val-null.js | 64 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 62 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 63 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 64 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 64 ++++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 64 ++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 58 +++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-throws.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 61 ++++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 62 ++++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 60 +++++++++
...str-dflt-ary-ptrn-elem-id-iter-step-err.js | 63 ++++++++++
...dstr-dflt-ary-ptrn-elem-id-iter-val-err.js | 74 +++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 63 ++++++++++
...str-dflt-ary-ptrn-elem-obj-prop-id-init.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-prop-id.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-null.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-undef.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elision-exhausted.js | 68 +++++++++++
.../dstr-dflt-ary-ptrn-elision-step-err.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elision.js | 77 ++++++++++++
.../dstr-dflt-ary-ptrn-empty.js | 60 +++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elem.js | 84 +++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elision.js | 90 ++++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-empty.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-rest.js | 69 +++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 57 +++++++++
.../dstr-dflt-ary-ptrn-rest-id-elision.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-rest-id-exhausted.js | 61 ++++++++++
...str-dflt-ary-ptrn-rest-id-iter-step-err.js | 68 +++++++++++
...dstr-dflt-ary-ptrn-rest-id-iter-val-err.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-rest-id.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-rest-init-ary.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-id.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-obj.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-ary.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-id.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-obj.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-obj-id.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-rest-obj-prop-id.js | 70 +++++++++++
.../arrow-function/dstr-dflt-obj-init-null.js | 51 ++++++++
.../dstr-dflt-obj-init-undefined.js | 51 ++++++++
.../dstr-dflt-obj-ptrn-empty.js | 61 ++++++++++
.../dstr-dflt-obj-ptrn-id-get-value-err.js | 58 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-arrow.js | 62 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-class.js | 63 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-cover.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-skipped.js | 66 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-throws.js | 58 +++++++++
...dstr-dflt-obj-ptrn-id-init-unresolvable.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-trailing-comma.js | 56 +++++++++
.../dstr-dflt-obj-ptrn-list-err.js | 59 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-init.js | 65 ++++++++++
...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 56 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-value-null.js | 53 ++++++++
.../dstr-dflt-obj-ptrn-prop-ary.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-prop-eval-err.js | 55 +++++++++
...str-dflt-obj-ptrn-prop-id-get-value-err.js | 60 +++++++++
...dstr-dflt-obj-ptrn-prop-id-init-skipped.js | 78 ++++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init-throws.js | 58 +++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init.js | 59 +++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 60 +++++++++
.../dstr-dflt-obj-ptrn-prop-id.js | 59 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 65 ++++++++++
.../dstr-dflt-obj-ptrn-prop-obj-value-null.js | 53 ++++++++
...dstr-dflt-obj-ptrn-prop-obj-value-undef.js | 53 ++++++++
.../dstr-dflt-obj-ptrn-prop-obj.js | 63 ++++++++++
.../dstr-gen-meth-dflt-ary-init-iter-close.js | 97 +++++++++++++++
...str-gen-meth-dflt-ary-init-iter-get-err.js | 84 +++++++++++++
...tr-gen-meth-dflt-ary-init-iter-no-close.js | 97 +++++++++++++++
.../dstr-gen-meth-dflt-ary-name-iter-val.js | 96 +++++++++++++++
...n-meth-dflt-ary-ptrn-elem-ary-elem-init.js | 88 ++++++++++++++
...n-meth-dflt-ary-ptrn-elem-ary-elem-iter.js | 89 ++++++++++++++
...eth-dflt-ary-ptrn-elem-ary-elision-init.js | 95 +++++++++++++++
...eth-dflt-ary-ptrn-elem-ary-elision-iter.js | 92 ++++++++++++++
...-meth-dflt-ary-ptrn-elem-ary-empty-init.js | 90 ++++++++++++++
...-meth-dflt-ary-ptrn-elem-ary-empty-iter.js | 88 ++++++++++++++
...n-meth-dflt-ary-ptrn-elem-ary-rest-init.js | 92 ++++++++++++++
...n-meth-dflt-ary-ptrn-elem-ary-rest-iter.js | 95 +++++++++++++++
...en-meth-dflt-ary-ptrn-elem-ary-val-null.js | 91 ++++++++++++++
...th-dflt-ary-ptrn-elem-id-init-exhausted.js | 87 +++++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 88 ++++++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 89 ++++++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 89 ++++++++++++++
...h-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 89 ++++++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 89 ++++++++++++++
...en-meth-dflt-ary-ptrn-elem-id-init-hole.js | 83 +++++++++++++
...meth-dflt-ary-ptrn-elem-id-init-skipped.js | 92 ++++++++++++++
...-meth-dflt-ary-ptrn-elem-id-init-throws.js | 82 +++++++++++++
...n-meth-dflt-ary-ptrn-elem-id-init-undef.js | 86 +++++++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 89 ++++++++++++++
...eth-dflt-ary-ptrn-elem-id-iter-complete.js | 90 ++++++++++++++
...en-meth-dflt-ary-ptrn-elem-id-iter-done.js | 85 +++++++++++++
...eth-dflt-ary-ptrn-elem-id-iter-step-err.js | 90 ++++++++++++++
...meth-dflt-ary-ptrn-elem-id-iter-val-err.js | 101 +++++++++++++++
...gen-meth-dflt-ary-ptrn-elem-id-iter-val.js | 96 +++++++++++++++
...gen-meth-dflt-ary-ptrn-elem-obj-id-init.js | 88 ++++++++++++++
...dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js | 88 ++++++++++++++
...eth-dflt-ary-ptrn-elem-obj-prop-id-init.js | 98 +++++++++++++++
...gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js | 98 +++++++++++++++
...en-meth-dflt-ary-ptrn-elem-obj-val-null.js | 91 ++++++++++++++
...n-meth-dflt-ary-ptrn-elem-obj-val-undef.js | 91 ++++++++++++++
...en-meth-dflt-ary-ptrn-elision-exhausted.js | 93 ++++++++++++++
...gen-meth-dflt-ary-ptrn-elision-step-err.js | 98 +++++++++++++++
.../dstr-gen-meth-dflt-ary-ptrn-elision.js | 102 ++++++++++++++++
.../dstr-gen-meth-dflt-ary-ptrn-empty.js | 85 +++++++++++++
...tr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js | 109 +++++++++++++++++
...gen-meth-dflt-ary-ptrn-rest-ary-elision.js | 115 ++++++++++++++++++
...r-gen-meth-dflt-ary-ptrn-rest-ary-empty.js | 98 +++++++++++++++
...tr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js | 94 ++++++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 84 +++++++++++++
...-gen-meth-dflt-ary-ptrn-rest-id-elision.js | 90 ++++++++++++++
...en-meth-dflt-ary-ptrn-rest-id-exhausted.js | 86 +++++++++++++
...eth-dflt-ary-ptrn-rest-id-iter-step-err.js | 95 +++++++++++++++
...meth-dflt-ary-ptrn-rest-id-iter-val-err.js | 97 +++++++++++++++
.../dstr-gen-meth-dflt-ary-ptrn-rest-id.js | 87 +++++++++++++
...tr-gen-meth-dflt-ary-ptrn-rest-init-ary.js | 81 ++++++++++++
...str-gen-meth-dflt-ary-ptrn-rest-init-id.js | 81 ++++++++++++
...tr-gen-meth-dflt-ary-ptrn-rest-init-obj.js | 81 ++++++++++++
...n-meth-dflt-ary-ptrn-rest-not-final-ary.js | 81 ++++++++++++
...en-meth-dflt-ary-ptrn-rest-not-final-id.js | 81 ++++++++++++
...n-meth-dflt-ary-ptrn-rest-not-final-obj.js | 81 ++++++++++++
...dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js | 87 +++++++++++++
...gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js | 95 +++++++++++++++
.../class/dstr-gen-meth-dflt-obj-init-null.js | 78 ++++++++++++
.../dstr-gen-meth-dflt-obj-init-undefined.js | 78 ++++++++++++
.../dstr-gen-meth-dflt-obj-ptrn-empty.js | 86 +++++++++++++
...gen-meth-dflt-obj-ptrn-id-get-value-err.js | 85 +++++++++++++
...eth-dflt-obj-ptrn-id-init-fn-name-arrow.js | 87 +++++++++++++
...eth-dflt-obj-ptrn-id-init-fn-name-class.js | 88 ++++++++++++++
...eth-dflt-obj-ptrn-id-init-fn-name-cover.js | 88 ++++++++++++++
...n-meth-dflt-obj-ptrn-id-init-fn-name-fn.js | 88 ++++++++++++++
...-meth-dflt-obj-ptrn-id-init-fn-name-gen.js | 88 ++++++++++++++
...-gen-meth-dflt-obj-ptrn-id-init-skipped.js | 91 ++++++++++++++
...r-gen-meth-dflt-obj-ptrn-id-init-throws.js | 85 +++++++++++++
...meth-dflt-obj-ptrn-id-init-unresolvable.js | 89 ++++++++++++++
...en-meth-dflt-obj-ptrn-id-trailing-comma.js | 81 ++++++++++++
.../dstr-gen-meth-dflt-obj-ptrn-list-err.js | 86 +++++++++++++
...tr-gen-meth-dflt-obj-ptrn-prop-ary-init.js | 90 ++++++++++++++
...h-dflt-obj-ptrn-prop-ary-trailing-comma.js | 81 ++++++++++++
...-meth-dflt-obj-ptrn-prop-ary-value-null.js | 80 ++++++++++++
.../dstr-gen-meth-dflt-obj-ptrn-prop-ary.js | 88 ++++++++++++++
...tr-gen-meth-dflt-obj-ptrn-prop-eval-err.js | 82 +++++++++++++
...eth-dflt-obj-ptrn-prop-id-get-value-err.js | 87 +++++++++++++
...meth-dflt-obj-ptrn-prop-id-init-skipped.js | 103 ++++++++++++++++
...-meth-dflt-obj-ptrn-prop-id-init-throws.js | 85 +++++++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 89 ++++++++++++++
...str-gen-meth-dflt-obj-ptrn-prop-id-init.js | 84 +++++++++++++
...th-dflt-obj-ptrn-prop-id-trailing-comma.js | 85 +++++++++++++
.../dstr-gen-meth-dflt-obj-ptrn-prop-id.js | 84 +++++++++++++
...tr-gen-meth-dflt-obj-ptrn-prop-obj-init.js | 90 ++++++++++++++
...-meth-dflt-obj-ptrn-prop-obj-value-null.js | 80 ++++++++++++
...meth-dflt-obj-ptrn-prop-obj-value-undef.js | 80 ++++++++++++
.../dstr-gen-meth-dflt-obj-ptrn-prop-obj.js | 88 ++++++++++++++
...en-meth-static-dflt-ary-init-iter-close.js | 97 +++++++++++++++
...-meth-static-dflt-ary-init-iter-get-err.js | 83 +++++++++++++
...meth-static-dflt-ary-init-iter-no-close.js | 97 +++++++++++++++
...-gen-meth-static-dflt-ary-name-iter-val.js | 96 +++++++++++++++
...static-dflt-ary-ptrn-elem-ary-elem-init.js | 88 ++++++++++++++
...static-dflt-ary-ptrn-elem-ary-elem-iter.js | 89 ++++++++++++++
...tic-dflt-ary-ptrn-elem-ary-elision-init.js | 95 +++++++++++++++
...tic-dflt-ary-ptrn-elem-ary-elision-iter.js | 92 ++++++++++++++
...tatic-dflt-ary-ptrn-elem-ary-empty-init.js | 90 ++++++++++++++
...tatic-dflt-ary-ptrn-elem-ary-empty-iter.js | 88 ++++++++++++++
...static-dflt-ary-ptrn-elem-ary-rest-init.js | 92 ++++++++++++++
...static-dflt-ary-ptrn-elem-ary-rest-iter.js | 95 +++++++++++++++
...-static-dflt-ary-ptrn-elem-ary-val-null.js | 90 ++++++++++++++
...ic-dflt-ary-ptrn-elem-id-init-exhausted.js | 87 +++++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 88 ++++++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 89 ++++++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 89 ++++++++++++++
...c-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 89 ++++++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 89 ++++++++++++++
...-static-dflt-ary-ptrn-elem-id-init-hole.js | 83 +++++++++++++
...atic-dflt-ary-ptrn-elem-id-init-skipped.js | 92 ++++++++++++++
...tatic-dflt-ary-ptrn-elem-id-init-throws.js | 81 ++++++++++++
...static-dflt-ary-ptrn-elem-id-init-undef.js | 86 +++++++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 88 ++++++++++++++
...tic-dflt-ary-ptrn-elem-id-iter-complete.js | 90 ++++++++++++++
...-static-dflt-ary-ptrn-elem-id-iter-done.js | 85 +++++++++++++
...tic-dflt-ary-ptrn-elem-id-iter-step-err.js | 89 ++++++++++++++
...atic-dflt-ary-ptrn-elem-id-iter-val-err.js | 100 +++++++++++++++
...h-static-dflt-ary-ptrn-elem-id-iter-val.js | 96 +++++++++++++++
...h-static-dflt-ary-ptrn-elem-obj-id-init.js | 88 ++++++++++++++
...n-meth-static-dflt-ary-ptrn-elem-obj-id.js | 88 ++++++++++++++
...tic-dflt-ary-ptrn-elem-obj-prop-id-init.js | 98 +++++++++++++++
...h-static-dflt-ary-ptrn-elem-obj-prop-id.js | 98 +++++++++++++++
...-static-dflt-ary-ptrn-elem-obj-val-null.js | 90 ++++++++++++++
...static-dflt-ary-ptrn-elem-obj-val-undef.js | 90 ++++++++++++++
...-static-dflt-ary-ptrn-elision-exhausted.js | 93 ++++++++++++++
...h-static-dflt-ary-ptrn-elision-step-err.js | 97 +++++++++++++++
...r-gen-meth-static-dflt-ary-ptrn-elision.js | 102 ++++++++++++++++
...str-gen-meth-static-dflt-ary-ptrn-empty.js | 85 +++++++++++++
...meth-static-dflt-ary-ptrn-rest-ary-elem.js | 109 +++++++++++++++++
...h-static-dflt-ary-ptrn-rest-ary-elision.js | 115 ++++++++++++++++++
...eth-static-dflt-ary-ptrn-rest-ary-empty.js | 98 +++++++++++++++
...meth-static-dflt-ary-ptrn-rest-ary-rest.js | 94 ++++++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 83 +++++++++++++
...th-static-dflt-ary-ptrn-rest-id-elision.js | 90 ++++++++++++++
...-static-dflt-ary-ptrn-rest-id-exhausted.js | 86 +++++++++++++
...tic-dflt-ary-ptrn-rest-id-iter-step-err.js | 94 ++++++++++++++
...atic-dflt-ary-ptrn-rest-id-iter-val-err.js | 96 +++++++++++++++
...r-gen-meth-static-dflt-ary-ptrn-rest-id.js | 87 +++++++++++++
...meth-static-dflt-ary-ptrn-rest-init-ary.js | 81 ++++++++++++
...-meth-static-dflt-ary-ptrn-rest-init-id.js | 81 ++++++++++++
...meth-static-dflt-ary-ptrn-rest-init-obj.js | 81 ++++++++++++
...static-dflt-ary-ptrn-rest-not-final-ary.js | 81 ++++++++++++
...-static-dflt-ary-ptrn-rest-not-final-id.js | 81 ++++++++++++
...static-dflt-ary-ptrn-rest-not-final-obj.js | 81 ++++++++++++
...n-meth-static-dflt-ary-ptrn-rest-obj-id.js | 87 +++++++++++++
...h-static-dflt-ary-ptrn-rest-obj-prop-id.js | 95 +++++++++++++++
...dstr-gen-meth-static-dflt-obj-init-null.js | 77 ++++++++++++
...gen-meth-static-dflt-obj-init-undefined.js | 77 ++++++++++++
...str-gen-meth-static-dflt-obj-ptrn-empty.js | 86 +++++++++++++
...h-static-dflt-obj-ptrn-id-get-value-err.js | 84 +++++++++++++
...tic-dflt-obj-ptrn-id-init-fn-name-arrow.js | 87 +++++++++++++
...tic-dflt-obj-ptrn-id-init-fn-name-class.js | 88 ++++++++++++++
...tic-dflt-obj-ptrn-id-init-fn-name-cover.js | 88 ++++++++++++++
...static-dflt-obj-ptrn-id-init-fn-name-fn.js | 88 ++++++++++++++
...tatic-dflt-obj-ptrn-id-init-fn-name-gen.js | 88 ++++++++++++++
...th-static-dflt-obj-ptrn-id-init-skipped.js | 91 ++++++++++++++
...eth-static-dflt-obj-ptrn-id-init-throws.js | 84 +++++++++++++
...atic-dflt-obj-ptrn-id-init-unresolvable.js | 88 ++++++++++++++
...-static-dflt-obj-ptrn-id-trailing-comma.js | 81 ++++++++++++
...-gen-meth-static-dflt-obj-ptrn-list-err.js | 85 +++++++++++++
...meth-static-dflt-obj-ptrn-prop-ary-init.js | 90 ++++++++++++++
...c-dflt-obj-ptrn-prop-ary-trailing-comma.js | 81 ++++++++++++
...tatic-dflt-obj-ptrn-prop-ary-value-null.js | 79 ++++++++++++
...-gen-meth-static-dflt-obj-ptrn-prop-ary.js | 88 ++++++++++++++
...meth-static-dflt-obj-ptrn-prop-eval-err.js | 81 ++++++++++++
...tic-dflt-obj-ptrn-prop-id-get-value-err.js | 86 +++++++++++++
...atic-dflt-obj-ptrn-prop-id-init-skipped.js | 103 ++++++++++++++++
...tatic-dflt-obj-ptrn-prop-id-init-throws.js | 84 +++++++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 88 ++++++++++++++
...-meth-static-dflt-obj-ptrn-prop-id-init.js | 84 +++++++++++++
...ic-dflt-obj-ptrn-prop-id-trailing-comma.js | 85 +++++++++++++
...r-gen-meth-static-dflt-obj-ptrn-prop-id.js | 84 +++++++++++++
...meth-static-dflt-obj-ptrn-prop-obj-init.js | 90 ++++++++++++++
...tatic-dflt-obj-ptrn-prop-obj-value-null.js | 79 ++++++++++++
...atic-dflt-obj-ptrn-prop-obj-value-undef.js | 79 ++++++++++++
...-gen-meth-static-dflt-obj-ptrn-prop-obj.js | 88 ++++++++++++++
.../dstr-meth-dflt-ary-init-iter-close.js | 94 ++++++++++++++
.../dstr-meth-dflt-ary-init-iter-get-err.js | 82 +++++++++++++
.../dstr-meth-dflt-ary-init-iter-no-close.js | 94 ++++++++++++++
.../class/dstr-meth-dflt-ary-name-iter-val.js | 93 ++++++++++++++
...r-meth-dflt-ary-ptrn-elem-ary-elem-init.js | 85 +++++++++++++
...r-meth-dflt-ary-ptrn-elem-ary-elem-iter.js | 86 +++++++++++++
...eth-dflt-ary-ptrn-elem-ary-elision-init.js | 92 ++++++++++++++
...eth-dflt-ary-ptrn-elem-ary-elision-iter.js | 89 ++++++++++++++
...-meth-dflt-ary-ptrn-elem-ary-empty-init.js | 87 +++++++++++++
...-meth-dflt-ary-ptrn-elem-ary-empty-iter.js | 85 +++++++++++++
...r-meth-dflt-ary-ptrn-elem-ary-rest-init.js | 89 ++++++++++++++
...r-meth-dflt-ary-ptrn-elem-ary-rest-iter.js | 92 ++++++++++++++
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...-meth-static-dflt-ary-ptrn-rest-init-id.js | 77 ++++++++++++
...meth-static-dflt-ary-ptrn-rest-init-obj.js | 77 ++++++++++++
...static-dflt-ary-ptrn-rest-not-final-ary.js | 77 ++++++++++++
...-static-dflt-ary-ptrn-rest-not-final-id.js | 77 ++++++++++++
...static-dflt-ary-ptrn-rest-not-final-obj.js | 77 ++++++++++++
...r-meth-static-dflt-ary-ptrn-rest-obj-id.js | 83 +++++++++++++
...h-static-dflt-ary-ptrn-rest-obj-prop-id.js | 91 ++++++++++++++
.../dstr-meth-static-dflt-obj-init-null.js | 73 +++++++++++
...str-meth-static-dflt-obj-init-undefined.js | 73 +++++++++++
.../dstr-meth-static-dflt-obj-ptrn-empty.js | 82 +++++++++++++
...h-static-dflt-obj-ptrn-id-get-value-err.js | 80 ++++++++++++
...tic-dflt-obj-ptrn-id-init-fn-name-arrow.js | 83 +++++++++++++
...tic-dflt-obj-ptrn-id-init-fn-name-class.js | 84 +++++++++++++
...tic-dflt-obj-ptrn-id-init-fn-name-cover.js | 84 +++++++++++++
...static-dflt-obj-ptrn-id-init-fn-name-fn.js | 84 +++++++++++++
...tatic-dflt-obj-ptrn-id-init-fn-name-gen.js | 84 +++++++++++++
...th-static-dflt-obj-ptrn-id-init-skipped.js | 87 +++++++++++++
...eth-static-dflt-obj-ptrn-id-init-throws.js | 80 ++++++++++++
...atic-dflt-obj-ptrn-id-init-unresolvable.js | 84 +++++++++++++
...-static-dflt-obj-ptrn-id-trailing-comma.js | 77 ++++++++++++
...dstr-meth-static-dflt-obj-ptrn-list-err.js | 81 ++++++++++++
...meth-static-dflt-obj-ptrn-prop-ary-init.js | 86 +++++++++++++
...c-dflt-obj-ptrn-prop-ary-trailing-comma.js | 77 ++++++++++++
...tatic-dflt-obj-ptrn-prop-ary-value-null.js | 75 ++++++++++++
...dstr-meth-static-dflt-obj-ptrn-prop-ary.js | 84 +++++++++++++
...meth-static-dflt-obj-ptrn-prop-eval-err.js | 77 ++++++++++++
...tic-dflt-obj-ptrn-prop-id-get-value-err.js | 82 +++++++++++++
...atic-dflt-obj-ptrn-prop-id-init-skipped.js | 99 +++++++++++++++
...tatic-dflt-obj-ptrn-prop-id-init-throws.js | 80 ++++++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 84 +++++++++++++
...-meth-static-dflt-obj-ptrn-prop-id-init.js | 80 ++++++++++++
...ic-dflt-obj-ptrn-prop-id-trailing-comma.js | 81 ++++++++++++
.../dstr-meth-static-dflt-obj-ptrn-prop-id.js | 80 ++++++++++++
...meth-static-dflt-obj-ptrn-prop-obj-init.js | 86 +++++++++++++
...tatic-dflt-obj-ptrn-prop-obj-value-null.js | 75 ++++++++++++
...atic-dflt-obj-ptrn-prop-obj-value-undef.js | 75 ++++++++++++
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.../function/dstr-dflt-ary-init-iter-close.js | 72 +++++++++++
.../dstr-dflt-ary-init-iter-get-err.js | 59 +++++++++
.../dstr-dflt-ary-init-iter-no-close.js | 72 +++++++++++
.../function/dstr-dflt-ary-name-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 64 ++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-init.js | 70 +++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 65 ++++++++++
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.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-iter.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-val-null.js | 66 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 62 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 63 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 64 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 64 ++++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 64 ++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 58 +++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-throws.js | 57 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 61 ++++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 64 ++++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 60 +++++++++
...str-dflt-ary-ptrn-elem-id-iter-step-err.js | 65 ++++++++++
...dstr-dflt-ary-ptrn-elem-id-iter-val-err.js | 76 ++++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 63 ++++++++++
...str-dflt-ary-ptrn-elem-obj-prop-id-init.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-prop-id.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-null.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-undef.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elision-exhausted.js | 68 +++++++++++
.../dstr-dflt-ary-ptrn-elision-step-err.js | 73 +++++++++++
.../function/dstr-dflt-ary-ptrn-elision.js | 77 ++++++++++++
.../function/dstr-dflt-ary-ptrn-empty.js | 60 +++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elem.js | 84 +++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elision.js | 90 ++++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-empty.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-rest.js | 69 +++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 59 +++++++++
.../dstr-dflt-ary-ptrn-rest-id-elision.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-rest-id-exhausted.js | 61 ++++++++++
...str-dflt-ary-ptrn-rest-id-iter-step-err.js | 70 +++++++++++
...dstr-dflt-ary-ptrn-rest-id-iter-val-err.js | 72 +++++++++++
.../function/dstr-dflt-ary-ptrn-rest-id.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-rest-init-ary.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-id.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-obj.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-ary.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-id.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-obj.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-obj-id.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-rest-obj-prop-id.js | 70 +++++++++++
.../function/dstr-dflt-obj-init-null.js | 53 ++++++++
.../function/dstr-dflt-obj-init-undefined.js | 53 ++++++++
.../function/dstr-dflt-obj-ptrn-empty.js | 61 ++++++++++
.../dstr-dflt-obj-ptrn-id-get-value-err.js | 60 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-arrow.js | 62 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-class.js | 63 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-cover.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-skipped.js | 66 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-throws.js | 60 +++++++++
...dstr-dflt-obj-ptrn-id-init-unresolvable.js | 64 ++++++++++
.../dstr-dflt-obj-ptrn-id-trailing-comma.js | 56 +++++++++
.../function/dstr-dflt-obj-ptrn-list-err.js | 61 ++++++++++
.../dstr-dflt-obj-ptrn-prop-ary-init.js | 65 ++++++++++
...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 56 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-value-null.js | 55 +++++++++
.../function/dstr-dflt-obj-ptrn-prop-ary.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-prop-eval-err.js | 57 +++++++++
...str-dflt-obj-ptrn-prop-id-get-value-err.js | 62 ++++++++++
...dstr-dflt-obj-ptrn-prop-id-init-skipped.js | 78 ++++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init-throws.js | 60 +++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 64 ++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init.js | 59 +++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 60 +++++++++
.../function/dstr-dflt-obj-ptrn-prop-id.js | 59 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 65 ++++++++++
.../dstr-dflt-obj-ptrn-prop-obj-value-null.js | 55 +++++++++
...dstr-dflt-obj-ptrn-prop-obj-value-undef.js | 55 +++++++++
.../function/dstr-dflt-obj-ptrn-prop-obj.js | 63 ++++++++++
.../dstr-dflt-ary-init-iter-close.js | 71 +++++++++++
.../dstr-dflt-ary-init-iter-get-err.js | 58 +++++++++
.../dstr-dflt-ary-init-iter-no-close.js | 71 +++++++++++
.../generators/dstr-dflt-ary-name-iter-val.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 63 ++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-init.js | 69 +++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-iter.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-iter.js | 69 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-val-null.js | 65 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 61 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 62 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 63 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 63 ++++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 63 ++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 57 +++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-throws.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 60 +++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 63 ++++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 59 +++++++++
...str-dflt-ary-ptrn-elem-id-iter-step-err.js | 64 ++++++++++
...dstr-dflt-ary-ptrn-elem-id-iter-val-err.js | 75 ++++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 62 ++++++++++
...str-dflt-ary-ptrn-elem-obj-prop-id-init.js | 72 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-prop-id.js | 72 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-null.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-undef.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elision-exhausted.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elision-step-err.js | 72 +++++++++++
.../generators/dstr-dflt-ary-ptrn-elision.js | 76 ++++++++++++
.../generators/dstr-dflt-ary-ptrn-empty.js | 59 +++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elem.js | 83 +++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elision.js | 89 ++++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-empty.js | 72 +++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-rest.js | 68 +++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 58 +++++++++
.../dstr-dflt-ary-ptrn-rest-id-elision.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-rest-id-exhausted.js | 60 +++++++++
...str-dflt-ary-ptrn-rest-id-iter-step-err.js | 69 +++++++++++
...dstr-dflt-ary-ptrn-rest-id-iter-val-err.js | 71 +++++++++++
.../generators/dstr-dflt-ary-ptrn-rest-id.js | 61 ++++++++++
.../dstr-dflt-ary-ptrn-rest-init-ary.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-id.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-obj.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-ary.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-id.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-obj.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-obj-id.js | 61 ++++++++++
.../dstr-dflt-ary-ptrn-rest-obj-prop-id.js | 69 +++++++++++
.../generators/dstr-dflt-obj-init-null.js | 52 ++++++++
.../dstr-dflt-obj-init-undefined.js | 52 ++++++++
.../generators/dstr-dflt-obj-ptrn-empty.js | 60 +++++++++
.../dstr-dflt-obj-ptrn-id-get-value-err.js | 59 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-arrow.js | 61 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-class.js | 62 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-cover.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-skipped.js | 65 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-throws.js | 59 +++++++++
...dstr-dflt-obj-ptrn-id-init-unresolvable.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-trailing-comma.js | 55 +++++++++
.../generators/dstr-dflt-obj-ptrn-list-err.js | 60 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-init.js | 64 ++++++++++
...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 55 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-value-null.js | 54 ++++++++
.../generators/dstr-dflt-obj-ptrn-prop-ary.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-prop-eval-err.js | 56 +++++++++
...str-dflt-obj-ptrn-prop-id-get-value-err.js | 61 ++++++++++
...dstr-dflt-obj-ptrn-prop-id-init-skipped.js | 77 ++++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init-throws.js | 59 +++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init.js | 58 +++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 59 +++++++++
.../generators/dstr-dflt-obj-ptrn-prop-id.js | 58 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 64 ++++++++++
.../dstr-dflt-obj-ptrn-prop-obj-value-null.js | 54 ++++++++
...dstr-dflt-obj-ptrn-prop-obj-value-undef.js | 54 ++++++++
.../generators/dstr-dflt-obj-ptrn-prop-obj.js | 62 ++++++++++
1305 files changed, 100223 insertions(+)
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js
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create mode 100644 test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
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create mode 100644 test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
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create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
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create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
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create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
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create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
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create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4b307161f3
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = ([x] = iter) => {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..eaeb44fd7f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var f = ([x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..baf72d0f96
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = ([x] = iter) => {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..007b2a93a0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x, y, z] = [1, 2, 3]) => {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..c944f6b188
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([[x, y, z] = [4, 5, 6]] = []) => {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..bf660a34a1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) => {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..772e84043c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([[,] = g()] = []) => {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..70a29eee1b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([[,] = g()] = [[]]) => {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..5f8c73b1bc
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var f;
+f = ([[] = function() { initCount += 1; return iter; }()] = []) => {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..59b29253e8
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = ([[] = function() { initCount += 1; }()] = [[23]]) => {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..39ac897434
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var f;
+f = ([[...x] = values] = []) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..fcae828b7a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = ([[...x] = function() { initCount += 1; }()] = [values]) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..0bd2b6748f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Nested array destructuring with a null value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var f = ([[x]] = [null]) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..1f1511bebc
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x = 23] = []) => {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..c5ab4cc6f3
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([arrow = () => {}] = []) => {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a46881b92c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([cls = class {}, xCls = class X {}] = []) => {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..930de09f94
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([cover = (function () {}), xCover = (0, function() {})] = []) => {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..80b41c2bad
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([fn = function () {}, xFn = function x() {}] = []) => {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..e346d06fd2
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([gen = function* () {}, xGen = function* x() {}] = []) => {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..22e088818c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x = 23] = [,]) => {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..9b59130d68
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = ([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) => {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..f995586e8a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var f = ([x = (function() { throw new Test262Error(); })()] = [undefined]) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..0592bc6bc1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x = 23] = [undefined]) => {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..106cb8994e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = ([ x = unresolvableReference ] = []) => {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fb6bb8a0ab
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x] = []) => {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..b824a423da
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([_, x] = []) => {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..b60418872b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var f = ([x] = g) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..1a19f2ada9
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = ([x] = g) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..c466253804
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x, y, z] = [1, 2, 3]) => {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..0014c7d938
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) => {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..1f80bc0a10
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) => {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..0d258dc3c0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) => {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..426db50f4b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) => {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..35d7bb1683
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Nested object destructuring with a null value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = ([{ x }] = [null]) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..6b5a2e2442
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = ([{ x }] = []) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..eaa6898ad5
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Elision accepts exhausted iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var f;
+f = ([,] = iter) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..4d7f207220
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var f = ([,] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..11c566aa03
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Elision advances iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([,] = g()) => {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..bcca029c1a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = ([] = iter) => {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..8e5d7be5ea
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([...[x, y, z]] = [3, 4, 5]) => {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..fc32bf2576
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an elision (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([...[,]] = g()) => {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..0ee5addff0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = ([...[]] = iter) => {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..f89170ab25
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing a rest element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = ([...[...x]] = values) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..e0c7bdf585
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Rest element following elision elements (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var f = ([, ...x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..b74b48d34e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element following elision elements (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var f;
+f = ([ , , ...x] = values) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..eb4a970668
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var f;
+f = ([, , ...x] = [1, 2]) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..74f5feb72c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var f = ([...x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..09824400eb
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = ([...x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..e29d45297e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Lone rest element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = ([...x] = values) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..f29bdba84e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...[ x ] = []] = []) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..eb7e99091c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...x = []] = []) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..1b0a57bcc5
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ x } = []] = []) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..d3a812c951
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...[x], y] = [1, 2, 3]) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..2fb75b7f77
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...x, y] = [1, 2, 3]) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..8b16b1f347
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ x }, y] = [1, 2, 3]) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..e7f805fbe1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an object binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ length }] = [1, 2, 3]) => {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..2b8a3acb7c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an object binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) => {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js b/test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..ad8cb90af5
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = ({} = null) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js b/test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..07cab579d3
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = ({} = undefined) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..397246c92a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var f;
+f = ({} = obj) => {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..7ada409523
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = ({ poisoned } = poisonedProperty) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..b4b51ea40f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ arrow = () => {} } = {}) => {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..af4e0a53e0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ cls = class {}, xCls = class X {} } = {}) => {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..851b36cdb1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ cover = (function () {}), xCover = (0, function() {}) } = {}) => {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0f9e21fc64
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ fn = function () {}, xFn = function x() {} } = {}) => {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..26210d7445
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ gen = function* () {}, xGen = function* x() {} } = {}) => {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..007cc7849f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = ({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) => {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..207ea5c9bb
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ x = thrower() } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f325728b2b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = ({ x = unresolvableReference } = {}) => {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..eba3658f1c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x, } = { x: 23 }) => {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..a20d7c3247
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ a, b = thrower(), c = ++initCount } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..2099d9bdfd
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: [x, y, z] = [4, 5, 6] } = {}) => {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..0497319adf
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: [y], } = { x: [45] }) => {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..847d6d3a81
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = ({ w: [x, y, z] = [4, 5, 6] } = { w: null }) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..50aa1593c8
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) => {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..a3e162b057
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ [thrower()]: x } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..ff4f06cf43
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = ({ poisoned: x = ++initEvalCount } = poisonedProperty) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..160e36e227
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = ({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) => {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..d4c6a88517
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ x: y = thrower() } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..9f4fc6e8ee
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = ({ x: y = unresolvableReference } = {}) => {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..c5457d4cf0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: y = 33 } = { }) => {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..c821daed0b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: y, } = { x: 23 }) => {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..1a0cd7c06e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Binding as specified via property name and identifier (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: y } = { x: 23 }) => {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..8556606597
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) => {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..5a759a5c54
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..9f0aa5b63b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = ({ w: { x, y, z } = undefined } = { }) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..eecdcf3f47
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) => {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..5ec3fbf266
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..e10e935773
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ *method([x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5b8eb1dc9e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..1d776ca4ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..70d1e1aa8a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..8c1b836d26
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..7de1fc0011
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..26b9bf7849
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..c9ab70830c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..b875facc4c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..a83bcae854
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..618957ca5e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..d5fd9e35a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ *method([[x]] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..7b746fb3b0
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..be56485759
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a56a220167
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..1fb2a704cb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..89ac7ba12d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..5340f5067d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ee357d99d1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..c53995899a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..2a2cee1105
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..f230d56376
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..348d8bef41
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ *method([ x = unresolvableReference ] = []) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fb47225655
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..b4cc4ff6fa
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..5442af3b35
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..7f668a669c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,101 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..e1d22ac8aa
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..9bcdf7d3f1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..95f4ab5280
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..ac92abdb3f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..b3ee8ae3cf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..694a464f73
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ *method([{ x }] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..0030d16177
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ *method([{ x }] = []) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..36949a0289
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..cf54109d27
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ *method([,] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..af13c56752
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,102 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..26ac515f73
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..04dce5bcdb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,109 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..90bf9c7c3e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,115 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..a38c651dbc
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..46bff62018
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..18172ac3f7
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ *method([, ...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..948f050d56
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..44e6da0cb8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..add399581e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..706d49fbb5
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..2518d14f7e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..2315149861
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..f83d0e588b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..55ccba416a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..80070d8f03
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..da97778617
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..f567a2a913
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..260d91c083
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..732d662e49
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..1aff6a1410
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ *method({} = null) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..b69a7a96d1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ *method({} = undefined) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..02e1770e81
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..5800d000b8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ *method({ poisoned } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..22cbe3b001
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c7a2a2d4d2
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..86f7db7941
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..c0b5a7a7d2
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..eb1df5b800
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..5d45cdaabe
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..2aa4c95429
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ x = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..567c0ecddb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ *method({ x = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..1b22895006
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..beb528d28e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..ca3ff9ba3c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..ab1a9ae881
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..c874bfd3bf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..a3e2c0edc1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..4ee40778f8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ [thrower()]: x } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..b06248f4f6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..ebfa2c6aa0
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,103 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..76e5e738cc
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ x: y = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..a93b613ec7
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ *method({ x: y = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..dc090c89ea
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..a42a191280
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..6eabd4be86
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..473f6185e3
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..7e480412ab
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..c53dcdd371
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ *method({ w: { x, y, z } = undefined } = { }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..9872afb5d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..b781bb7e1a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..89d07e3dda
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ static *method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5748e6082a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..dffc01152b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..6717d46c78
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..27b7467eda
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..b0a3866a69
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..56ed0ddfab
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..61af0230de
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ static *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..2b4492bb4b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..4f89c895f6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ static *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..d6575d32b3
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..ab30c0295f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ static *method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..f895f84408
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..0de7c850ce
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c3b75da5fc
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..96a0d2af20
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..77cec8416b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..146f538f3d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..b006b2d714
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..40d6954590
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..8bed6e5d2b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ static *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..41b93806ef
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..1c9202de2e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static *method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..897c2a023a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..2a5e4615c8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..4b40f416c8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..979439b46f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..b5ed63acc8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..0bb492c796
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..1a0459234e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..4c98a45189
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..436c528725
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..01068ecfbf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static *method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..c5701430c2
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static *method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..1da4f38388
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ static *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..5c5ae10c2e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ static *method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..b86cbe98e3
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,102 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..ee27b3244d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..27a0f206c9
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,109 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..a7e2cb735d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,115 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..fcc26dd6e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..d1004dedcf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..1634e689b6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ static *method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..646ca4f0ae
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ static *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..69d79e5ac4
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..9c5815d618
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..aa351c7dc5
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f6cc057b57
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..4a391cacce
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..dbc1fc0a0c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..671fd4247f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a902340322
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..b709bb2404
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..07add9b7ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..b4d48e8924
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..4d3741bc65
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..3644d4e90f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static *method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..6396ae7403
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static *method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..54b92d2a1f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ static *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..64fb0dde5d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static *method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..5737b12bd8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6f343be628
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..0cd868faeb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..79d4f11b5f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..652f36dc28
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..9afc1abf96
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..f827603e03
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..08ed1c3c48
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static *method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..3ca13d770b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..933841417c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..bff15eda57
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..6022779eac
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..7e87084d8b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..53992c64e7
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..957abff41f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..d2a64a431c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..e1f7c98718
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,103 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..47d1612bc4
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6c7272f1a8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static *method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..d4312c0ba0
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..0ec19be6f4
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..3c46c08466
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..abc8d4c86e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..3d4ae8b65a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..ad4e55460f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static *method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..5f1da2e141
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4f8d734a78
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..7f7d334b28
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ method([x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..a1f911c269
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..93c6528881
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..dd721c9542
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..ae219f8bea
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..62f5527d34
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..74bc12df53
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..80d63fec64
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..d54438a6bb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..0d6939ed2f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..386a893b6d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..ce8dd79337
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ method([[x]] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..a70eb23993
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d72c43292c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..e04cea08d0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..4511ea6e57
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..4c3eb06ddd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a4d6571b64
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..aa3c93ae7e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..3c7f8e025b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..f250556b80
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..7f68be7eb8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..c6dc329fb6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ method([ x = unresolvableReference ] = []) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..8f28a8b739
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..dc85571e41
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..fa9c705add
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..6a26ea83a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..32cd2dd411
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..5b2288f612
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..72b011bee4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..063b40c76e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..84f11026d0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..effbe693eb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ method([{ x }] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..f5dbd72624
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ method([{ x }] = []) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e77ba40411
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..df36675334
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ method([,] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..d3ef75c8cd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..ff630bf270
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..0831478c18
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,106 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..8c7d982d7c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,112 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..8aeaabe213
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..95cef0266f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..05070994ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ method([, ...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..5f87669e17
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..71317f95ef
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..f745fe8eb8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..c7fbaa69d3
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f6e995cd32
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..4f293e0afa
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..341bdf9f09
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..73c2d5a26a
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..f29a418331
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..4fc4c49e5d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..dd50423693
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..7c1930e2d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..de108a6515
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-init-null.js b/test/language/expressions/class/dstr-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..e7f1a5b6e1
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-init-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ method({} = null) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..0e1d427ab0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ method({} = undefined) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..ac14023bc8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..619606d6f0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ method({ poisoned } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..0662f03000
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ba1e077fb5
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..273f6b73f7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..2cda3ab551
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..54bac900ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..551d5dedb9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..49c37658db
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ x = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..0ffb1f121e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ method({ x = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bbdab81371
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..7c12126ed6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..17d86c6590
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..be61b0be2f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..f722c1d81b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..3d6a80d2e7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..59a1aa73b0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ [thrower()]: x } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..05fa3149d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..33693c6d99
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..9636632a65
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ x: y = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..0f3a519b0c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ method({ x: y = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..51f7c12be4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..3653a3c831
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..0f6fea520c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..a26fa513e8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..694c3c01ea
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..53b387028d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..16769c24ce
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..51f7f4df12
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..bbe954a8a8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ static method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..971960e546
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..3acd97eccb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..eb85c0c26c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..ef7df19026
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..1f46ed2603
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..648aa58717
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..8449f22212
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ static method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..44858ced43
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..31ad10f7e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ static method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..20c54d48d5
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..368e60d36d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ static method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..0b6b97ad0d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..6c77de3398
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a0288aa2fe
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..ffc0277318
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..088e6c7c17
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..49fe105423
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..2839ee832f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..e68650c9fb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..7fa8ea2d5d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ static method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..ef4241839e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..7f500350a4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..687564366e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..48f9a726a0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..f925788b9c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..281e6af2b3
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..e938f65da8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..445823fe6d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..80e1213d58
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..580f4ac51e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..405e7399f9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..b80eb2ae8f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..b1dee6ac98
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..49d6a447c6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ static method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..79de22c30b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ static method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..b98061594e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..a8b7fa9153
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..f99f77b04c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,106 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..fa81d3a2fc
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,112 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..84a9738486
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..e480bd8a8b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..e340d45f07
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ static method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..34d894a491
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ static method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f36f17d5ae
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..7082b7b14b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..fa719169e1
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..fc764301a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..f0c231c163
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..a415405973
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..f2a41ee688
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..0c60477e8b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..be3b2675e3
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..9405e2430e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..7af8a83a42
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..103feca683
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-init-null.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..ed6abab839
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..85849961b9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..bb6184f5a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ static method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..e33a08f45d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..18752865cc
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..fb2f137356
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..1947a05f46
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..260659b140
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..fd034e6d3c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..dad3daca54
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..fcbbae5a42
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..1c7e7f44e4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bf44827876
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..d7f55986bd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..67d6dfc5e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..c48b848e46
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..dc267a1c4a
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..99d213df75
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..6c2f4d41c7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..b5cde6af86
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..65bc9f2646
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..61ec0cfaa2
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..9518c430b6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..60c7d56c00
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..42abd6e02a
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..b3fa74ac92
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..dffcbf64fd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..f2bc4be76e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..48d8933af7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..48c7c576a1
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/function/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..61ec69fe8d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-init-iter-get-err.js b/test/language/expressions/function/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..acac271e51
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var f = function([x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/function/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..e4ff6e584d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/function/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..5c38fee634
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..568ead28aa
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..89663d1062
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..b34692e2d6
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..f7f0362499
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..f8103883b3
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var f;
+f = function([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..f254bc9c69
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..edf0315712
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var f;
+f = function([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..34303bf126
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..39a2793d66
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Nested array destructuring with a null value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var f = function([[x]] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..469020ee4f
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..8f5350408b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..3cbe731bb0
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..2bceb488f5
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..36115b5afd
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..3bf148a168
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..28fd5e4d42
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..7822041a8a
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..135e42ec5c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var f = function([x = (function() { throw new Test262Error(); })()] = [undefined]) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..a8a5783dbf
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..997715249a
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function([ x = unresolvableReference ] = []) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..0973207f3f
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f308b8a522
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..784b52b19d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var f = function([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..f2a41b220b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..bf4ec1b4f1
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..50be24e8fd
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..e6154875bf
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..d25433b1a0
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..a4347ae540
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..da576a62de
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Nested object destructuring with a null value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function([{ x }] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..fdf9e2ca38
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function([{ x }] = []) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..01ccef9c51
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Elision accepts exhausted iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var f;
+f = function([,] = iter) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..a64145b66c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var f = function([,] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..f176ccdcc2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Elision advances iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..81450e9a7b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..692dcf2e06
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..8c7ec5482b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an elision (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..11a9a2fba4
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..c2270afc0d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing a rest element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..b9376e410e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Rest element following elision elements (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var f = function([, ...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..21401ec829
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element following elision elements (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var f;
+f = function([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..91ddab3d91
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var f;
+f = function([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..4e348580b2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var f = function([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..2559daa84e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..63bf1a58f2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Lone rest element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..e2535ee958
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..3f913f8821
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..7b9879f061
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..51e0acb07e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..8f448f18ae
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..957dc771d5
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..5ffc1767b6
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..aeedc5c860
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-init-null.js b/test/language/expressions/function/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..7dadf07082
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-init-null.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function({} = null) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-init-undefined.js b/test/language/expressions/function/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..f022a53f9d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function({} = undefined) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..9b6f547e5e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var f;
+f = function({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..4c77e0730d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function({ poisoned } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..c4e977a14e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..80638d75e7
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..daf709642c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..8b01f2e7db
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..08add1ee82
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..5b92ad43f4
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..60c01f2173
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ x = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..2c21026936
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function({ x = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..ea34c1388d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-list-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..c36d7edc34
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ a, b = thrower(), c = ++initCount } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..9fb238e644
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..238c09e3f9
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..0d103e4670
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..ac572cfde4
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..104d38db44
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ [thrower()]: x } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..3493f4075c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function({ poisoned: x = ++initEvalCount } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..2f2ff162af
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..e1f52790a2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ x: y = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..23fd0eea98
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function({ x: y = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..b312d6335a
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..84005d96df
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..cc4addabe3
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Binding as specified via property name and identifier (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..991f1252e0
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..98799968eb
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..6f2641d15c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function({ w: { x, y, z } = undefined } = { }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..bc199a1265
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/generators/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..7d1631f70a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function*([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-init-iter-get-err.js b/test/language/expressions/generators/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..eb15ac9b40
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var f = function*([x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/generators/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5d81c1bf4f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function*([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/generators/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..944761d578
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..6916f60479
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..5dcf7c2cc0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..592ed62c6d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..a607059e7a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..ed0046f243
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var f;
+f = function*([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..d37226113f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function*([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..fd6a3f4784
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var f;
+f = function*([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..13003c7c88
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function*([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..cb75906384
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Nested array destructuring with a null value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var f = function*([[x]] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..72e82b7901
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..df14df54e1
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..2e1f87ddb4
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..01ea45a27f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..28e4c130d0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..0f86aa51ee
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..bb1b7d1090
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..ba78f7213d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function*([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..d53269e637
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var f = function*([x = (function() { throw new Test262Error(); })()] = [undefined]) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..1c08f8df0a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..31d6c57a23
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function*([ x = unresolvableReference ] = []) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..3e3a2e9279
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f411e1e4e9
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..b04aaa0a90
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var f = function*([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..790a8fefa2
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function*([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..74f9122e70
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..d8b4d188cd
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..1913c0915d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..c5971e7173
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..1883135f4c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..7e21b8b34b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Nested object destructuring with a null value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function*([{ x }] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..8514cb8df0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function*([{ x }] = []) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..b760fc16b8
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Elision accepts exhausted iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var f;
+f = function*([,] = iter) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..e563fffc7e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var f = function*([,] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..3e2d66a56d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Elision advances iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..116dd47f1e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function*([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..011b8ff709
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..43ec6865a7
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an elision (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..b5f40f95c8
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function*([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..4d5334cf2c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing a rest element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function*([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..83f38f8ed3
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Rest element following elision elements (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var f = function*([, ...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..7c462f574f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element following elision elements (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var f;
+f = function*([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..89a1566103
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var f;
+f = function*([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..10fabaf8fe
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var f = function*([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..4128e7b732
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function*([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..fdc046cfb2
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Lone rest element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function*([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..820d7a0f69
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..9c5eada2b5
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..66e9c0440d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..94c31adaad
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..2b0bb88a00
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..d7410ed621
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..9bf74f72bb
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..0df9cd4e21
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-init-null.js b/test/language/expressions/generators/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..b7e66b3f1a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-init-null.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function*({} = null) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-init-undefined.js b/test/language/expressions/generators/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..89a1deefaa
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function*({} = undefined) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..cb59ebe21a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var f;
+f = function*({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..aae92df13e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function*({ poisoned } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..7b68171e5b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ede0ce051e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..761d917844
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b1191972b0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a5815cdc46
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..849ad490c2
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function*({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..58193b66aa
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ x = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f5fe5074dd
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function*({ x = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..5185cd6de3
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-list-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..2a8aef33ef
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ a, b = thrower(), c = ++initCount } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..73b40f601b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..ff5184c4dc
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..efd1c8ed34
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function*({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..91c69d990b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..b1ffb43ebc
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ [thrower()]: x } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..6a13794dcc
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function*({ poisoned: x = ++initEvalCount } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..3740ccf3ce
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function*({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..70badd6c70
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ x: y = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6f2ee07c4a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function*({ x: y = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..51c4d71130
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..d5bbb481bb
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..b29981eb3c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Binding as specified via property name and identifier (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..ee8e5221fd
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..2d1c92683f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..2e69443b48
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function*({ w: { x, y, z } = undefined } = { }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..71167c9a6c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-close.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..c17349e261
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..6508245309
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var obj = {
+ *method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..9874fa38f6
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-name-iter-val.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..2c73ff64b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..c49eeff539
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..112aefd8dc
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..db0809fc64
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..f6a39a69bb
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..fa8cc68cb0
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var obj = {
+ *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..da2aff3934
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..6b1d6ba122
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var obj = {
+ *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..fe6b182df1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..f957343695
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var obj = {
+ *method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..0217ce2536
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..6071504fcc
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..7852dc8156
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..255a97d8f4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b047d963ce
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..2c0b110277
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..79587da441
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..70ee82784a
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..bc7dc3c020
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var obj = {
+ *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..55591fb3ed
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..70200e550b
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ *method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..8f67d5fc47
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..7bd2493e40
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..3c84a98a81
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var obj = {
+ *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..5bb89b278f
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..a6af5ecc24
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..7954d02670
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..5660a67064
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..9ee29e36e1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..c34a744275
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..a2a380fab4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ *method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..fb4be8e848
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ *method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..d33d0d77f0
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Elision accepts exhausted iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var obj = {
+ *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..99790d0dea
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var obj = {
+ *method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..ce2856ff0d
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Elision advances iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..d97c5f0041
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..ed92312f10
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..264e1e8293
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an elision (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..86ab5680c6
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..18719a9c0c
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing a rest element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..91453619b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var obj = {
+ *method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..b413c87fc1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element following elision elements (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var obj = {
+ *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f56505d66c
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..cd7ad05b89
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var obj = {
+ *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..7df0ee2c46
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..166cdef523
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Lone rest element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..fc64797f94
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..ef7048267e
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..14875b7428
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..0901fdc1ce
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..bbe133b41c
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..0ba6470e0e
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..72cd270b74
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..29bc12f334
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..1a84aa8163
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-null.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ *method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-undefined.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..bcfb0b1566
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ *method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..78e1374dc0
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var obj = {
+ *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..3178fb93f2
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ *method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d24b86b971
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..1f2cb2aa25
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..11e3d4740e
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..d4b56a08e5
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..b94afac017
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..f9daee5fea
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..d1f4546e20
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..3e162bd434
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ *method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..898ff96ffd
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..e67a41dae1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..e954fca517
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..5ecb5f2dff
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..cfcf333dfd
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..93a94bb734
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..1a42d8dc48
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..5ef7dab0cf
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..fc13547f05
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..3bc55df00d
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6be5da422a
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ *method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..d7cab302b9
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..9e4fe14b86
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..25b2a9b67d
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Binding as specified via property name and identifier (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..2896eaf42b
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..5f195983f3
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..650e69d6f3
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ *method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..760137a722
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-close.js b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4e92ae28ce
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..4167ace3f9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var obj = {
+ method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..18d82d81a9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-name-iter-val.js b/test/language/expressions/object/dstr-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..ed6412c684
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..9a034968df
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..2424d25562
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..139c79b4e0
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..c09df91888
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..a4271ebe28
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var obj = {
+ method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..2c5ae3f4c5
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..211e239477
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var obj = {
+ method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..68ea80d3b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..29b45ef301
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var obj = {
+ method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..c899e32c42
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..e6612a3b85
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..2dc0802506
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..074c0f686e
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b6293cb063
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..e035e7cf5a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..f1887d0378
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..20bca78715
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..347c0c9622
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var obj = {
+ method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..cff07467d7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..fcd7e7eccf
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..34f91b07c7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..70c39753e6
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..1a72354afc
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var obj = {
+ method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..b8191868a7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..6c452803a4
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..6e9dced290
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..c0a88a767d
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..a48b46df10
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..fc5d3a3256
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..8fce74b23a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..6b404d59cf
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..99f056699f
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var obj = {
+ method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..ff5ef6865b
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var obj = {
+ method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..c896bb64d9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Elision advances iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..306c948104
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..8d064b332e
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..94dfcb97ca
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an elision (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..fc5c46e316
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..d49d8ce033
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing a rest element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..8958518bb2
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Rest element following elision elements (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var obj = {
+ method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..bde5be7ace
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element following elision elements (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var obj = {
+ method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..6b19dafbb2
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var obj = {
+ method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..d13f8bddc9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var obj = {
+ method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..66218f6282
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..08aa482ea9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Lone rest element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..9e929a4f9f
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..56edab5975
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..21c0c22844
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a52f4769a9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..5fe8826d5e
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..6dc54a3411
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..cf7b89c40c
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..f2853d38e7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-init-null.js b/test/language/expressions/object/dstr-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..14922afb94
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-init-null.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-init-undefined.js b/test/language/expressions/object/dstr-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..25760a9473
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..e93ddf6fb0
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var obj = {
+ method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..ba50328a36
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..f427553a19
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6ea8850334
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..ee75a23017
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..d3cb03e408
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..5cd76dd549
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..e23f8be8c5
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..1ee6b3937a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..6bc5191979
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..dbf4dd62d6
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..6db684bb73
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..aa0c777380
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..10e8b68b9f
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..d1b6ae7c86
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..abab62f63a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..3b88c94711
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..5d18f9c6f9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..30154e8990
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..d07a459f44
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..25591b4804
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..f380475e70
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..065ca04442
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..bf82246b82
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..43236d4d94
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..4f432d7d13
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..13edb25fc5
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..3e36fd72a7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4d9916385a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..990850a42b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ *method([x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..c4513294fc
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..614c63cec5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..a451f70ce2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..264664f22c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..4929f77911
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..42679bed28
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..16d76875c7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..a9278583c4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..698692b5ea
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..d8866ef973
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..397f660958
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ *method([[x]] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..6ed7902b3e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..3e2d646a17
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..3d993f32f3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..4b224eb5d5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..be878d1fd4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a57729770f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..f0abc3340c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..c5be49d674
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..5d7f17814c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..5d78bb294b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..4deb19958f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ *method([ x = unresolvableReference ] = []) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..df16b83fd4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..160066037b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..3993aafd84
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..4ed92cc891
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..aa886dfb03
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..b149df6b4b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..2404b1a5e2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5a7174f0d6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..307e8f716c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..c47247518b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ *method([{ x }] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..ab9cfe873a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ *method([{ x }] = []) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..583ccd71f2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..b39cc0ffa4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ *method([,] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..2b30427238
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..09cb65b879
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..5c4624342d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,107 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..6d22c8fe8f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,113 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..312248079a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..fe29b68ede
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..6abc67381e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ *method([, ...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..343145947f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..cfaf8ab6d2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..1ab4a9f499
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..a54bb04edf
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..8ebe8caca7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..5cabe9a492
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..b915845505
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..142e800d9a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..2d9fb7cbf3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..5492d74aec
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..fc802c0f8d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..91c799be32
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..112830090b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-init-null.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..b56c1afa56
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ *method({} = null) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..3fdb2a2277
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ *method({} = undefined) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..b1f09a2674
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..a57087e8fb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ *method({ poisoned } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..e6a99275dd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..46aa7918fa
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..bea1d40ffd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e041b88c36
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..1b202b57f4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..b37d0b7e4b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..ea00ae2aca
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ x = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..041425052c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ *method({ x = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..0d2be4c769
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..1d7ef5922a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..2ebe8b030e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..e05985d3ec
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..57ec5d5cdd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..14485d0dc7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..019a247989
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ [thrower()]: x } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..b24624bb5f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..e2aaa500dd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,101 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..105c76a4d5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ x: y = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..abad384f72
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ *method({ x: y = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..ebbcd496e8
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..02d1d9e588
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..2999a988c5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..8ee3d8341c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..acc6a814e3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..472e7a211a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ *method({ w: { x, y, z } = undefined } = { }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..ad03ed484f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..e6f8e72dea
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..d5417e4b3f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ static *method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..16e1ca43a7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..99efc01cc5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..ceb7a1f133
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..06e15c4688
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..54d83012c9
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..33056cd443
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..407aa1c06e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ static *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..f644b0d648
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..c2fbe5573e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ static *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..60f44a6adb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..feab2bd52a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ static *method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..b9d89f3feb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..af71786720
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..05d8fa2bf4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..37efaf04a3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b54f0c961d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..80835c85b4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..32d4cabcb6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..8d141b7777
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..ff4f0b188f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ static *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..759006d0ad
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..5d1b958b80
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static *method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fb97f6cd28
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..d8915ed63e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..6313d6eb5c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..4cfa6b8fee
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..8034693be0
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..5752ac8265
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..b4292842ca
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5f22ddd1de
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..74a98c85d6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..fd78cea8e8
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static *method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..3f3385b702
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static *method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..5e58e7a430
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ static *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..cfbc6d536d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ static *method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..ae16773145
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..0d9e4d523e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..511012222f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,107 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..e9b443bc88
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,113 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..be9eedcf90
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..bc515d1d50
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..aba507c0ed
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ static *method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..e005f4e036
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ static *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..1f1e458902
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ static *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..b804c5453c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..fb73c8980f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..7cbf15d5ca
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..4c816cfa3c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..2749d1d94c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..421af5e3a4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..e875636188
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..56ab611158
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..2d8cb1dcd7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..99a1a21241
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..b1fba994a2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..77017df4a3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static *method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..523b662f2d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static *method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..a2b9b986cb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ static *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..963d6e8c5e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static *method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..52120dac15
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4c93913819
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..26e5ba6401
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0bb43fe393
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ec7167e2d4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..139fbd7fa7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..66fd04c7a8
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..180b96a088
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static *method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..9c7c64b985
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..1c54ef902a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..040248ac59
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..e6c43d7407
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..416c8f46c3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..f4cfaebfa6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..f78ae52061
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..eb5269f73a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..8f06565fc0
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,101 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..386031fea7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..4f774207b2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static *method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..675f73d0c6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..9e98c160a6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..0a48908564
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..7fd6de3876
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..91537b5f6a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..fcd324e7ab
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static *method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..9272d80dfb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..f622f29f77
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..7d0fc862d9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ method([x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..351b527e10
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..d73b777f19
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..2113b8fcdd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..8b5bd3ceb8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..54e1565583
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..fdfa656d54
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..54c2e7e2c0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..1df936e3ef
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..b116bf9d26
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..711bbd2b4d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..2c28fea71c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ method([[x]] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..17d992f20e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d18d57374c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4979f5020d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..7f25f0f1cd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..785f00d5a9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..24fa5286ea
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..871c869657
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..8cc86b0bcc
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..870590414b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..1762e2c3b4
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..366106c155
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ method([ x = unresolvableReference ] = []) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..69f37ffcaa
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..971963272d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..d01da5241a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..b422b175df
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..7769f2ac26
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..ed009e3423
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..0e91ee5de5
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..fa6b594519
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..07acb7ca38
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..31f338f736
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ method([{ x }] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..6e76a10db8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ method([{ x }] = []) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e6ca887d66
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..be34b4068e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ method([,] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..25cebd605f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..8b421d4106
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..8b0ef02793
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..eecdce1c91
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,111 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..47a0ff81bd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..07ed9d6322
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..87216e1f3a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ method([, ...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..eef090b43a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..969655eccb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..5d1dda5733
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..c7d484a7b6
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f1320a791d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..51e9b03354
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..182992ad8b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..8bc377226f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..85ade6f323
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..778a535e03
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..eb8046ef02
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..b5172d9098
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..447c10d94d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-init-null.js b/test/language/statements/class/dstr-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..010bb00ac9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-init-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ method({} = null) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..46e57a9cea
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ method({} = undefined) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..0225dd2fd1
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..8dcda8d874
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ method({ poisoned } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..8bbf3187a0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a2b56f5abe
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..8345bf3481
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..9dc51483cd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..b3cd4c3172
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..7c5f8a1453
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..ede61ab581
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ x = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f685d6925d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ method({ x = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..91d6e40522
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..9ee791529c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..65aa2ea5d9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..bf7b97f870
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..cbe4f3c967
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..ad8c844723
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..f56697919c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ [thrower()]: x } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..524ac7ba85
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..9855fc3a8f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..1d9e6a9dcb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ x: y = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..72b320dfa9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ method({ x: y = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..89d5c3e662
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..f4b1133d11
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..06bd46d480
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..7a0878443e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..24a7a1e876
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..92d4cf3f9f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..a51a6f2fd0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..73dd499b86
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..466bc738be
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ static method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..13bf83b0d8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..f6e0d82e7b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..27b67f0a8d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..2a25dabf14
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..24896dd63f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..2e5bef1035
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..0d9c8e47dd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ static method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..562ee56690
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..de51d5527e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ static method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..f061737cf0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..304f5b444b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ static method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..4981f9743d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..dab5ffd8f0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..922e3042fe
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..c8d7120e74
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e7f32f1208
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..0b19c53702
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..8e6c2e9673
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..6c319ee354
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..8102ea7210
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ static method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..61cbf1370d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..934a41dfa0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fc739b6657
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..9ec53e2ae7
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..1b577f92c7
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..6bc92b07e6
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..776c19b7eb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..a4ddbacd42
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..72c062c11b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..66878c7af3
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..7cf14cff82
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..4041160ca1
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..5f8cbdfc96
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e011176909
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ static method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..e4b4b56762
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ static method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..d090623ce8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..d361f69b1c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..13d59b5093
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..14c7eac34d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,111 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..91f24a4508
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..41b355b0b4
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..fbda4c0f1f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ static method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..710b261aa9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ static method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..7c3fd3e4d0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ static method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..c69040be38
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..2284a6448d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..6d78576dab
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..263f3b84b8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..a61c9a964d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..d5aa4120b6
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..1632b535f9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..c8095b1607
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..b7394c8048
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..fef1563144
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..d8f0410c05
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-init-null.js b/test/language/statements/class/dstr-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..041aba454d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..ae08aa1b31
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..d15e6ea031
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ static method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..85ab81e46f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..3fff254c93
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4a7a08b579
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..5306f5f3be
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..87aef5a67b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..1c8d131152
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..8c5fed7d15
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..5e21a5e861
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..6a41823b39
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..a74daebfb9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..618d6e3b92
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..5c5c17f394
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..9bd2ce8723
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..1ad1c33712
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..891f6ad1a5
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..67ac32e8dd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..e1d0b4a18b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..16a8e460fa
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..77a296fd95
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..4e32a61ddb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..8e4acbea92
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..183eab3b35
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..08c170130a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..ad9399c870
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..70af3fad03
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..cd6d87dd78
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..3051e14f4b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-init-iter-close.js b/test/language/statements/function/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..6dcd43be36
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function f([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js b/test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..cb46c7abc5
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+function f([x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js b/test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5ce2199795
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function f([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-name-iter-val.js b/test/language/statements/function/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..55ffdbc86f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..fb11fbbf05
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..30b9b0aef6
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..a85dd0e042
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..2efc077cd1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..81ae466e1a
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..37f7f2f89b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..8d854e5c94
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+function f([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..50044b4989
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+function f([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..1bb6c789ba
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested array destructuring with a null value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+function f([[x]] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..5c0817e4a1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..2d4a22bcc3
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..477e554042
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..78226fc1f0
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..47f2d01fa9
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ba3ab7b2a5
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ace40abc4e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..0dbdeb0f28
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..b9ef8da228
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+function f([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..d9b1a3c840
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..9a9361afd3
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f([ x = unresolvableReference ] = []) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..1dfa727bb7
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..6a5711406e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..690a2fa252
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+function f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..960598c1f0
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..66b0f4cb9e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..c93a3452eb
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..b090600c0b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5cd253bfdd
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..7cef2b8a06
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..7f1fb1e106
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested object destructuring with a null value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..a6847a6ff4
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }] = []) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..47d1b06c7e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Elision accepts exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+function f([,] = iter) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..423b3d16fa
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+function f([,] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elision.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..3844f7dd89
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Elision advances iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function f([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-empty.js b/test/language/statements/function/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..87ba2c4103
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function f([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..2903d5efa4
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..c2dc9d6a2b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an elision (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function f([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..03bcd7af2a
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function f([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..7ce2a0d4af
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing a rest element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..9d86883469
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Rest element following elision elements (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+function f([, ...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..4afe09d859
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element following elision elements (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+function f([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..cd05ebdc67
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+function f([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..2a9445800a
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+function f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..fe9088155c
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..b080eb6689
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Lone rest element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..bccd34bba8
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..804f98bfea
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..39a080d8dd
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..f23820db95
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..a3bd7a3b30
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..b0bffcfb89
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..75f4774135
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..e10f62a5cb
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-init-null.js b/test/language/statements/function/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..1bd9c032cb
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-init-null.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function f({} = null) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-init-undefined.js b/test/language/statements/function/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..aeb4510c47
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function f({} = undefined) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-empty.js b/test/language/statements/function/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..d7dce50fd2
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+function f({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..4fcba776f5
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function f({ poisoned } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..440975b842
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..f9eb8e325f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..67c39b7db8
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..8882557c0e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..cf12cc58a2
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..95a339154f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..82f393491d
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ x = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..1d2a127a38
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..64f938578c
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..2705a11561
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ a, b = thrower(), c = ++initCount } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..620fb163b1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..638d893adf
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..39c810641e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..616e757ad3
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..9bbdd4df19
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ [thrower()]: x } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..566e29e297
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function f({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..050d2e3dfa
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..24d20c1efc
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ x: y = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..65feafa0dc
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x: y = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..fa07c0c0d1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..a8da076bd4
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..14f2b8b60d
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Binding as specified via property name and identifier (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..537fe4db81
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..918d9027d1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..7256753f9f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = undefined } = { }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..e94711519b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-init-iter-close.js b/test/language/statements/generators/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..b7159d14f7
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function* f([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js b/test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..be0a0929fe
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+function* f([x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js b/test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..b08a9f0841
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function* f([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-name-iter-val.js b/test/language/statements/generators/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..01cc9dfb4d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..86d79f337b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..4df9e01554
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..5a711c3b10
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function* f([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..a37124d6bf
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+function* f([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..d535b67c4b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+function* f([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..db6ad2f12a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+function* f([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..1cbba70f3c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+function* f([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..08f81debb1
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+function* f([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..67ea3a8278
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Nested array destructuring with a null value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+function* f([[x]] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..193c144826
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..854c4457fb
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4724ef3f25
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..37ac885369
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e2f20084a9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..de951966fc
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ef05a5478b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..067f1dbe10
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function* f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..e5bdb2bf5c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+function* f([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..12cc3cd63c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..3860cbd0c0
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function* f([ x = unresolvableReference ] = []) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..801b828215
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..433f52ee60
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..08c70c21c3
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+function* f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..e223c03b4d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function* f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..22cc5f2077
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..39067b4ab9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..191f6635ea
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..1ece4c26d1
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..5c50e495f8
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..596d0aab10
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Nested object destructuring with a null value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function* f([{ x }] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..0731bc027e
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function* f([{ x }] = []) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..8cfb101211
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Elision accepts exhausted iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+function* f([,] = iter) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..c9713a1e3e
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+function* f([,] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..f9e7235810
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Elision advances iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function* f([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..6f0a518888
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function* f([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..eef37179bb
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..33ba155823
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an elision (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function* f([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..21e7af104a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function* f([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..c3f1e58bc2
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing a rest element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function* f([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..e83d023e74
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Rest element following elision elements (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+function* f([, ...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..ad05e3cfd1
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element following elision elements (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+function* f([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..add35a813b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+function* f([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..71415f728d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+function* f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..6adac85057
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function* f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..3663784da3
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Lone rest element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function* f([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..2482ebae3e
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..8f5757f7ab
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..3a7ae56563
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..db823e4941
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..19178f05f9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..0b871fc2e6
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..cdf51b5aff
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..b2b54f17f5
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-init-null.js b/test/language/statements/generators/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..f412768ba4
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-init-null.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function* f({} = null) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-init-undefined.js b/test/language/statements/generators/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..f6468ebeb6
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function* f({} = undefined) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..253010fdeb
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+function* f({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..0d0e5ba2e9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function* f({ poisoned } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..fcfb26a19f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c2bbc7e66a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..5543d43b2c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..324a5c2276
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..6d994dd2da
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..4096a4b59f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function* f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..d06548d200
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ x = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..dddb47c93f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function* f({ x = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..7d4a83c1c6
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function* f({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..0981d78f75
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ a, b = thrower(), c = ++initCount } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..0674cd5ed2
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..db8885f2cf
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function* f({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..a767e22aae
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function* f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..41971dd081
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..4d9e8f4a2d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ [thrower()]: x } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..62b3f35e01
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function* f({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..a468e20520
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function* f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..263fb6f1d4
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ x: y = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..45ba2c738d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function* f({ x: y = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..ff051f9789
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..3884b210f8
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function* f({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..91d177e31d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Binding as specified via property name and identifier (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..a98ab8ea25
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..07270d3221
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..29d8c6980a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function* f({ w: { x, y, z } = undefined } = { }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..965520888f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
--
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