427242326c
Before evaluating a module, all variables declared at the top-level in _any_ of the modules in the dependency graph must be initialized. This is observable because a module A can access a variable imported from module B (e.g. a function) at a point when module B's body hasn't been evaluated yet. We achieve this by implementing modules internally as generators with two states (not initialized, initialized). R=adamk@chromium.org BUG=v8:1569 CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_win_dbg Committed: https://crrev.com/f4dfb6fbe1cdd9a0f287a1a9c496e1f69f6f5d20 Committed: https://crrev.com/8c52a411583e870bd5ed100864caa58f491c5d88 Review-Url: https://codereview.chromium.org/2375793002 Cr-Original-Original-Commit-Position: refs/heads/master@{#39871} Cr-Original-Commit-Position: refs/heads/master@{#39892} Cr-Commit-Position: refs/heads/master@{#39900}
21 lines
617 B
JavaScript
21 lines
617 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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import {v, w, x, y, z} from "modules-init3.js";
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assertEquals({value: 40, done: true}, v().next());
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assertSame(undefined, w);
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assertThrows(() => x, ReferenceError);
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assertThrows(() => y, ReferenceError);
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assertThrows(() => z, ReferenceError);
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export function check() {
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assertEquals({value: 40, done: true}, v().next());
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assertEquals(41, w);
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assertEquals(42, x);
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assertEquals("y", y.name);
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assertEquals("hello world", z);
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return true;
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}
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