object-for-timeout.js (2539B)
1 // |reftest| shell-option(--setpref=atomics_wait_async) skip-if(!this.hasOwnProperty('SharedArrayBuffer')||!this.hasOwnProperty('Atomics')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))||!xulRuntime.shell) async -- SharedArrayBuffer,Atomics is not enabled unconditionally, ARM64 Simulator cannot emulate atomics, requires shell-options 2 // Copyright (C) 2020 Rick Waldron. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 /*--- 5 esid: sec-atomics.waitasync 6 description: > 7 Object valueOf, toString, toPrimitive Zero timeout arg should result in an +0 timeout 8 info: | 9 Atomics.waitAsync( typedArray, index, value, timeout ) 10 11 1. Return DoWait(async, typedArray, index, value, timeout). 12 13 DoWait ( mode, typedArray, index, value, timeout ) 14 15 6. Let q be ? ToNumber(timeout). 16 17 Object -> Apply the following steps: 18 19 Let primValue be ? ToPrimitive(argument, hint Number). 20 Return ? ToNumber(primValue). 21 22 features: [Atomics.waitAsync, SharedArrayBuffer, Symbol, Symbol.toPrimitive, TypedArray, computed-property-names, Atomics, BigInt, arrow-function] 23 flags: [async] 24 ---*/ 25 assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"'); 26 const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)); 27 28 const valueOf = { 29 valueOf() { 30 return 0; 31 } 32 }; 33 34 const toString = { 35 toString() { 36 return '0'; 37 } 38 }; 39 40 const toPrimitive = { 41 [Symbol.toPrimitive]() { 42 return 0; 43 } 44 }; 45 46 assert.sameValue( 47 Atomics.waitAsync(i64a, 0, 0n, valueOf).value, 48 'timed-out', 49 'The value of Atomics.waitAsync(i64a, 0, 0n, valueOf).value is "timed-out"' 50 ); 51 52 assert.sameValue( 53 Atomics.waitAsync(i64a, 0, 0n, toString).value, 54 'timed-out', 55 'The value of Atomics.waitAsync(i64a, 0, 0n, toString).value is "timed-out"' 56 ); 57 58 assert.sameValue( 59 Atomics.waitAsync(i64a, 0, 0n, toPrimitive).value, 60 'timed-out', 61 'The value of Atomics.waitAsync(i64a, 0, 0n, toPrimitive).value is "timed-out"' 62 ); 63 64 Promise.all([ 65 Atomics.waitAsync(i64a, 0, 0n, valueOf).value, 66 Atomics.waitAsync(i64a, 0, 0n, toString).value, 67 Atomics.waitAsync(i64a, 0, 0n, toPrimitive).value 68 ]).then(outcomes => { 69 assert.sameValue(outcomes[0], 'timed-out', 'The value of outcomes[0] is "timed-out"'); 70 assert.sameValue(outcomes[1], 'timed-out', 'The value of outcomes[1] is "timed-out"'); 71 assert.sameValue(outcomes[2], 'timed-out', 'The value of outcomes[2] is "timed-out"'); 72 }).then($DONE, $DONE);