From 35206ee85b0a132c1b3195e97752299d49b5ebc9 Mon Sep 17 00:00:00 2001
From: jugglinmike <mike@mikepennisi.com>
Date: Mon, 11 Jul 2016 16:46:03 -0400
Subject: [PATCH] Add test for subclassing bound functions (#720)
The semantics under test have been incorrectly implemented by the
SpiderMonkey engine.
---
.../class/subclass/bound-function.js | 29 +++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 test/language/statements/class/subclass/bound-function.js
diff --git a/test/language/statements/class/subclass/bound-function.js b/test/language/statements/class/subclass/bound-function.js
new file mode 100644
index 0000000000..92f7de5503
--- /dev/null
+++ b/test/language/statements/class/subclass/bound-function.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-runtime-semantics-classdefinitionevaluation
+es6id: 14.5.14
+description: SuperClass may be a bound function object
+info: |
+ [...]
+ 5. If ClassHeritageopt is not present, then
+ [...]
+ 6. Else,
+ [...]
+ e. If superclass is null, then
+ [...]
+ f. Else if IsConstructor(superclass) is false, throw a TypeError exception.
+ g. Else,
+ i. Let protoParent be ? Get(superclass, "prototype").
+ ii. If Type(protoParent) is neither Object nor Null, throw a TypeError
+ exception.
+ iii. Let constructorParent be superclass.
+ [...]
+---*/
+
+var bound = function() {}.bind();
+bound.prototype = {};
+
+class C extends bound {}
+
+assert.sameValue(Object.getPrototypeOf(new C()), C.prototype);
--
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