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75 lines
2.7 KiB
JavaScript
75 lines
2.7 KiB
JavaScript
// Copyright 2018 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-async-hooks --harmony-await-optimization
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// Check for async/await asyncIds relation
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(function() {
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let asyncIds = [], triggerIds = [];
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let ah = async_hooks.createHook({
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init(asyncId, type, triggerAsyncId, resource) {
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if (type !== 'PROMISE') {
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return;
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}
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asyncIds.push(asyncId);
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triggerIds.push(triggerAsyncId);
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},
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});
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ah.enable();
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// Simplified version of Node.js util.promisify(setTimeout),
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// but d8 ignores the timeout of setTimeout.
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function sleep0() {
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const promise = new Promise(function(resolve, reject) {
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try {
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setTimeout((err, ...values) => {
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if (err) {
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reject(err);
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} else {
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resolve(values[0]);
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}
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}, 0);
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} catch (err) {
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reject(err);
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}
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});
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return promise;
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}
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async function foo() {
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await sleep0();
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}
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assertPromiseResult(
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foo().then(function() {
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assertEquals(triggerIds[2], asyncIds[1]);
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assertEquals(triggerIds[3], asyncIds[0]);
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assertEquals(triggerIds[4], asyncIds[3]);
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assertEquals(triggerIds[6], asyncIds[5]);
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}));
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})();
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