a6e635d692
This will allow V8 extra consumers to track promise state without
using a side-table. This is used by streams as of
173f9f67be.
BUG=chromium:658144
Review-Url: https://codereview.chromium.org/2784213002
Cr-Commit-Position: refs/heads/master@{#44287}
100 lines
3.3 KiB
JavaScript
100 lines
3.3 KiB
JavaScript
// Copyright 2015 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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(function (global, binding, v8) {
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'use strict';
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binding.testExtraShouldReturnFive = function() {
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return 5;
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};
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binding.testExtraShouldCallToRuntime = function() {
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return binding.runtime(3);
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};
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binding.testFunctionToString = function() {
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function foo() { return 1; }
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return foo.toString();
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};
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binding.testStackTrace = function(f) {
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return f();
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}
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// Exercise all of the extras utils:
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// - v8.createPrivateSymbol
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// - v8.simpleBind, v8.uncurryThis
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// - v8.InternalPackedArray
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// - v8.createPromise, v8.resolvePromise, v8.rejectPromise
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const Object = global.Object;
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const hasOwn = v8.uncurryThis(Object.prototype.hasOwnProperty);
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const Function = global.Function;
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const call = v8.uncurryThis(Function.prototype.call);
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const apply = v8.uncurryThis(Function.prototype.apply);
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const Promise = global.Promise;
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const Promise_resolve = v8.simpleBind(Promise.resolve, Promise);
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const arrayToTest = new v8.InternalPackedArray();
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arrayToTest.push(1);
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arrayToTest.push(2);
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arrayToTest.pop();
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arrayToTest.unshift("a", "b", "c");
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arrayToTest.shift();
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arrayToTest.splice(0, 1);
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const slicedArray = arrayToTest.slice();
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const arraysOK = arrayToTest.length === 2 && arrayToTest[0] === "c" &&
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arrayToTest[1] === 1 && slicedArray.length === 2 &&
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slicedArray[0] === "c" && slicedArray[1] === 1;
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binding.testExtraCanUseUtils = function() {
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const fulfilledPromise = v8.createPromise();
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v8.resolvePromise(
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fulfilledPromise,
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hasOwn({ test: 'test' }, 'test') ? 1 : -1,
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undefined // pass an extra arg to test arguments adapter frame
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);
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const fulfilledPromise2 = Promise_resolve(call(function (arg1, arg2) {
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return (this.prop === arg1 && arg1 === 'value' && arg2) ? 2 : -1;
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}, { prop: 'value' }, 'value', arraysOK));
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const rejectedPromise = v8.createPromise();
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v8.rejectPromise(rejectedPromise, apply(function (arg1, arg2) {
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return (arg1 === arg2 && arg2 === 'x') ? 3 : -1;
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}, null, new v8.InternalPackedArray('x', 'x')));
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const rejectedButHandledPromise = v8.createPromise();
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v8.rejectPromise(rejectedButHandledPromise, 4);
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v8.markPromiseAsHandled(rejectedButHandledPromise);
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function promiseStateToString(promise) {
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switch (v8.promiseState(promise)) {
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case v8.kPROMISE_PENDING:
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return "pending";
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case v8.kPROMISE_FULFILLED:
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return "fulfilled";
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case v8.kPROMISE_REJECTED:
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return "rejected";
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default:
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throw new Error("Unexpected value for promiseState");
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}
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}
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let promiseStates = promiseStateToString(new Promise(() => {})) + ' ' +
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promiseStateToString(fulfilledPromise) + ' ' +
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promiseStateToString(rejectedPromise);
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return {
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privateSymbol: v8.createPrivateSymbol('sym'),
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fulfilledPromise, // should be fulfilled with 1
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fulfilledPromise2, // should be fulfilled with 2
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rejectedPromise, // should be rejected with 3
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rejectedButHandledPromise, // should be rejected but have a handler
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promiseStates // should be the string "pending fulfilled rejected"
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};
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};
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})
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