6390282f96
Annex B 3.3 applies only for ordinary FunctionDeclarations, not GeneratorDeclarations or AsyncFunctionDeclarations. This patch - Skips applying Annex B 3.3 to async functions - Adds a flag to refrain from applying it to generators - UseCounter for how often duplicate function in block occurs with generators (unclear how to measure need for hoisting from block) BUG=v8:4806 Review-Url: https://codereview.chromium.org/1995863002 Cr-Commit-Position: refs/heads/master@{#36557}
29 lines
707 B
JavaScript
29 lines
707 B
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --harmony-restrictive-generators
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// Generators don't get sloppy-mode block-scoped function hoisting
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// No hoisting to the global scope
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{
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function* foo() {}
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assertEquals('function', typeof foo);
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}
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assertEquals('undefined', typeof foo);
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// No hoisting within a function scope
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(function() {
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{ function* bar() {} }
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assertEquals('undefined', typeof bar);
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})();
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// Lexical shadowing allowed, no hoisting
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(function() {
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function* x() { yield 1; }
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{ function* x() { yield 2 } }
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assertEquals(1, x().next().value);
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})();
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