thisarg-primitive-strict-strict.js (1913B)
1 // |reftest| async 2 'use strict'; 3 // Copyright (C) 2022 Igalia, S.L. All rights reserved. 4 // This code is governed by the BSD license found in the LICENSE file. 5 6 /*--- 7 esid: sec-array.fromasync 8 description: > 9 If thisArg is a primitive, mapfn is called with it as the this-value in strict 10 mode 11 info: | 12 6. If _mapping_ is *true*, then 13 a. Let _mappedValue_ be Call(_mapfn_, _thisArg_, « _nextValue_, 𝔽(_k_) »). 14 15 In OrdinaryCallBindThis, _thisArgument_ is always bound as the this-value in 16 strict mode (_F_.[[ThisMode]] is ~strict~, where _F_ is the function object.) 17 flags: [async, onlyStrict] 18 includes: [asyncHelpers.js] 19 features: [Array.fromAsync] 20 ---*/ 21 22 asyncTest(async () => { 23 await Array.fromAsync([1, 2, 3], async function () { 24 assert.sameValue(this, undefined, "undefined thisArg should be bound as the this-value of mapfn"); 25 }, undefined); 26 27 await Array.fromAsync([1, 2, 3], async function () { 28 assert.sameValue(this, null, "null thisArg should be bound as the this-value of mapfn"); 29 }, null); 30 31 await Array.fromAsync([1, 2, 3], async function () { 32 assert.sameValue(this, "string", "string thisArg should be bound as the this-value of mapfn"); 33 }, "string"); 34 35 await Array.fromAsync([1, 2, 3], async function () { 36 assert.sameValue(this, 3.1416, "number thisArg should be bound as the this-value of mapfn"); 37 }, 3.1416); 38 39 await Array.fromAsync([1, 2, 3], async function () { 40 assert.sameValue(this, 42n, "bigint thisArg should be bound as the this-value of mapfn"); 41 }, 42n); 42 43 await Array.fromAsync([1, 2, 3], async function () { 44 assert.sameValue(this, true, "boolean thisArg should be bound as the this-value of mapfn"); 45 }, true); 46 47 const symbolThis = Symbol("symbol"); 48 await Array.fromAsync([1, 2, 3], async function () { 49 assert.sameValue(this, symbolThis, "symbol thisArg should be bound as the this-value of mapfn"); 50 }, symbolThis); 51 });