-
Mike Pennisi authored
ECMAScript 2015 introduced tail call optimization for function calls occuring in a number of positions in the grammar. Assert expected behavior by triggering a large (but configurable) number of recursive function calls in these positions. Compliant runtimes will execute such programs without error; non-compliant runtimes are expected to fail these tests by throwing an error or crashing when system resources are exhausted.
Mike Pennisi authoredECMAScript 2015 introduced tail call optimization for function calls occuring in a number of positions in the grammar. Assert expected behavior by triggering a large (but configurable) number of recursive function calls in these positions. Compliant runtimes will execute such programs without error; non-compliant runtimes are expected to fail these tests by throwing an error or crashing when system resources are exhausted.
tco-body.js 551 B
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Statement within statement is a candidate for tail-call optimization.
id: static-semantics-hasproductionintailposition
flags: [onlyStrict]
features: [tail-call-optimization]
includes: [tco-helper.js]
---*/
var callCount = 0;
(function f(n) {
if (n === 0) {
callCount += 1
return;
}
do {
return f(n - 1);
} while (false)
}($MAX_ITERATIONS));
assert.sameValue(callCount, 1);