mirror of https://github.com/tc39/test262.git
63 lines
2.4 KiB
JavaScript
63 lines
2.4 KiB
JavaScript
// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
esid: sec-async-function-constructor-arguments
|
|
description: Default [[Prototype]] value derived from realm of the NewTarget.
|
|
info: |
|
|
AsyncFunction ( p1, p2, … , pn, body )
|
|
|
|
...
|
|
3. Return CreateDynamicFunction(C, NewTarget, "async", args).
|
|
|
|
Runtime Semantics: CreateDynamicFunction ( constructor, newTarget, kind, args )
|
|
|
|
...
|
|
9. Else if kind is "async", then
|
|
...
|
|
c. Let fallbackProto be "%AsyncFunction.prototype%".
|
|
...
|
|
18. Let proto be ? GetPrototypeFromConstructor(newTarget, fallbackProto).
|
|
...
|
|
|
|
GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
|
|
|
|
...
|
|
3. Let proto be ? Get(constructor, "prototype").
|
|
4. If Type(proto) is not Object, then
|
|
a. Let realm be ? GetFunctionRealm(constructor).
|
|
b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
|
|
5. Return proto.
|
|
features: [async-functions, cross-realm, Reflect, Symbol]
|
|
---*/
|
|
|
|
var AsyncFunction = Object.getPrototypeOf(async function() {}).constructor;
|
|
var other = $262.createRealm().global;
|
|
var OtherAsyncFunction = Object.getPrototypeOf(other.eval('(0, async function() {})')).constructor;
|
|
var newTarget = new other.Function();
|
|
var fn;
|
|
|
|
newTarget.prototype = undefined;
|
|
fn = Reflect.construct(AsyncFunction, [], newTarget);
|
|
assert.sameValue(Object.getPrototypeOf(fn), OtherAsyncFunction.prototype, 'newTarget.prototype is undefined');
|
|
|
|
newTarget.prototype = null;
|
|
fn = Reflect.construct(AsyncFunction, [], newTarget);
|
|
assert.sameValue(Object.getPrototypeOf(fn), OtherAsyncFunction.prototype, 'newTarget.prototype is null');
|
|
|
|
newTarget.prototype = true;
|
|
fn = Reflect.construct(AsyncFunction, [], newTarget);
|
|
assert.sameValue(Object.getPrototypeOf(fn), OtherAsyncFunction.prototype, 'newTarget.prototype is a Boolean');
|
|
|
|
newTarget.prototype = '';
|
|
fn = Reflect.construct(AsyncFunction, [], newTarget);
|
|
assert.sameValue(Object.getPrototypeOf(fn), OtherAsyncFunction.prototype, 'newTarget.prototype is a String');
|
|
|
|
newTarget.prototype = Symbol();
|
|
fn = Reflect.construct(AsyncFunction, [], newTarget);
|
|
assert.sameValue(Object.getPrototypeOf(fn), OtherAsyncFunction.prototype, 'newTarget.prototype is a Symbol');
|
|
|
|
newTarget.prototype = 1;
|
|
fn = Reflect.construct(AsyncFunction, [], newTarget);
|
|
assert.sameValue(Object.getPrototypeOf(fn), OtherAsyncFunction.prototype, 'newTarget.prototype is a Number');
|