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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.
22 lines
547 B
JavaScript
22 lines
547 B
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: Statement within statement is a candidate for tail-call optimization.
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id: static-semantics-hasproductionintailposition
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flags: [onlyStrict]
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features: [tail-call-optimization]
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includes: [tco-helper.js]
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---*/
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var callCount = 0;
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(function f(n) {
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if (n === 0) {
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callCount += 1
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return;
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}
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while (true) {
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return f(n - 1);
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}
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}($MAX_ITERATIONS));
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assert.sameValue(callCount, 1);
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