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// Copyright 2015 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.
(function (global, binding, v8) {
'use strict';
binding.testExtraShouldReturnFive = function() {
return 5;
};
binding.testExtraShouldCallToRuntime = function() {
return binding.runtime(3);
};
binding.testFunctionToString = function() {
function foo() { return 1; }
return foo.toString();
};
binding.testStackTrace = function(f) {
return f();
}
// Exercise all of the extras utils:
// - v8.createPrivateSymbol
// - v8.uncurryThis
// - v8.InternalPackedArray
// - v8.createPromise, v8.resolvePromise, v8.rejectPromise
const Object = global.Object;
const hasOwn = v8.uncurryThis(Object.prototype.hasOwnProperty);
const Function = global.Function;
const call = v8.uncurryThis(Function.prototype.call);
const apply = v8.uncurryThis(Function.prototype.apply);
const Promise = global.Promise;
const Promise_resolve = Promise.resolve.bind(Promise);
const arrayToTest = new v8.InternalPackedArray();
arrayToTest.push(1);
arrayToTest.push(2);
arrayToTest.pop();
arrayToTest.unshift("a", "b", "c");
arrayToTest.shift();
arrayToTest.splice(0, 1);
const slicedArray = arrayToTest.slice();
const arraysOK = arrayToTest.length === 2 && arrayToTest[0] === "c" &&
arrayToTest[1] === 1 && slicedArray.length === 2 &&
slicedArray[0] === "c" && slicedArray[1] === 1;
binding.testCreatePromise = function() {
return v8.createPromise();
}
binding.testCreatePromiseWithParent = function(parent) {
return v8.createPromise(parent);
}
binding.testRejectPromise = function(promise, reason) {
return v8.rejectPromise(promise, reason);
}
binding.testResolvePromise = function(promise, resolution) {
return v8.resolvePromise(promise, resolution);
}
binding.testExtraCanUseUtils = function() {
const fulfilledPromise = v8.createPromise();
v8.resolvePromise(
fulfilledPromise,
hasOwn({ test: 'test' }, 'test') ? 1 : -1,
undefined // pass an extra arg to test arguments adapter frame
);
const fulfilledPromise2 = Promise_resolve(call(function (arg1, arg2) {
return (this.prop === arg1 && arg1 === 'value' && arg2) ? 2 : -1;
}, { prop: 'value' }, 'value', arraysOK));
const rejectedPromise = v8.createPromise();
v8.rejectPromise(rejectedPromise, apply(function (arg1, arg2) {
return (arg1 === arg2 && arg2 === 'x') ? 3 : -1;
}, null, new v8.InternalPackedArray('x', 'x')));
const rejectedButHandledPromise = v8.createPromise();
v8.rejectPromise(rejectedButHandledPromise, 4);
v8.markPromiseAsHandled(rejectedButHandledPromise);
function promiseStateToString(promise) {
switch (v8.promiseState(promise)) {
case v8.kPROMISE_PENDING:
return "pending";
case v8.kPROMISE_FULFILLED:
return "fulfilled";
case v8.kPROMISE_REJECTED:
return "rejected";
default:
throw new Error("Unexpected value for promiseState");
}
}
let promiseStates = promiseStateToString(new Promise(() => {})) + ' ' +
promiseStateToString(fulfilledPromise) + ' ' +
promiseStateToString(rejectedPromise);
return {
privateSymbol: v8.createPrivateSymbol('sym'),
fulfilledPromise, // should be fulfilled with 1
fulfilledPromise2, // should be fulfilled with 2
rejectedPromise, // should be rejected with 3
rejectedButHandledPromise, // should be rejected but have a handler
promiseStates, // should be the string "pending fulfilled rejected"
promiseIsPromise: v8.isPromise(fulfilledPromise), // should be true
thenableIsPromise: v8.isPromise({ then() { } }) // should be false
};
};
})
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