v8/test/mjsunit/harmony/modules-import-5.js

// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --allow-natives-syntax --harmony-dynamic-import

var life;
let x = 'modules-skip-1.js';
import(x).then(namespace => life = namespace.life());
x = 'modules-skip-2.js';

%PerformMicrotaskCheckpoint();
assertEquals(42, life);
[ESNext] Implement DynamicImportCall This patch implements the runtime semantics of dynamic import. We create a new ASTNode so that we can pass the JSFunction closure() to the runtime function from which we get the script_url. d8 implements the embedder logic required to load and evaluate the modules. The API is mostly implemented as specified. BUG=8:5785 Review-Url: https://codereview.chromium.org/2703563002 Cr-Commit-Position: refs/heads/master@{#44551} 2017-04-11 09:33:11 +00:00			`// Copyright 2017 the V8 project authors. All rights reserved.`
			`// Use of this source code is governed by a BSD-style license that can be`
			`// found in the LICENSE file.`

			`// Flags: --allow-natives-syntax --harmony-dynamic-import`

			`var life;`
			`let x = 'modules-skip-1.js';`
			`import(x).then(namespace => life = namespace.life());`
			`x = 'modules-skip-2.js';`

Replace %RunMicrotasks with %PerformMicrotaskCheckpoint This replaces Runtime_RunMicrotasks with Runtime_PerformMicrotaskCheckpoint. RunMicrotasks forcibly runs Microtasks even when the microtasks are suppressed, and may causes nested Microtasks in a problematic way. E.g. that confuses v8::MicrotasksScope::IsRunningMicrotasks() and GetEnteredOrMicrotaskContext(). OTOH, PerformMicrotaskCheckpoint() doesn't run cause the failure as it respects the microtask suppressions. As all existing tests don't call RunMicrotasks() in the suppressed situation (like Promise.resolve().then(()=>{%RunMicrotasks();})), this change should not affect to these tests. Change-Id: Ib043a0cc8e482e022d375084d65ea98a6f54ef3d Reviewed-on: https://chromium-review.googlesource.com/c/1360095 Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Taiju Tsuiki <tzik@chromium.org> Cr-Commit-Position: refs/heads/master@{#58068} 2018-12-04 06:12:49 +00:00			`%PerformMicrotaskCheckpoint();`
[ESNext] Implement DynamicImportCall This patch implements the runtime semantics of dynamic import. We create a new ASTNode so that we can pass the JSFunction closure() to the runtime function from which we get the script_url. d8 implements the embedder logic required to load and evaluate the modules. The API is mostly implemented as specified. BUG=8:5785 Review-Url: https://codereview.chromium.org/2703563002 Cr-Commit-Position: refs/heads/master@{#44551} 2017-04-11 09:33:11 +00:00			`assertEquals(42, life);`