null-bufferdata-throws.js (1332B)
1 // |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally 2 // Copyright (C) 2018 Amal Hussein. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 /*--- 5 esid: sec-atomics.wait 6 description: > 7 A null value for bufferData throws a TypeError 8 info: | 9 Atomics.wait( typedArray, index, value, timeout ) 10 11 1.Let buffer be ? ValidateSharedIntegerTypedArray(typedArray, true). 12 ... 13 14 ValidateSharedIntegerTypedArray(typedArray [ , onlyInt32 ] ) 15 16 ... 17 9.If IsSharedArrayBuffer(buffer) is false, throw a TypeError exception. 18 19 20 IsSharedArrayBuffer( obj ) 21 22 ... 23 3.If bufferData is null, return false. 24 25 includes: [detachArrayBuffer.js] 26 features: [ArrayBuffer, Atomics, BigInt, TypedArray] 27 ---*/ 28 29 const i64a = new BigInt64Array( 30 new ArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4) 31 ); 32 const poisoned = { 33 valueOf: function() { 34 throw new Test262Error('should not evaluate this code'); 35 } 36 }; 37 38 try { 39 $DETACHBUFFER(i64a.buffer); // Detaching a non-shared ArrayBuffer sets the [[ArrayBufferData]] value to null 40 } catch (error) { 41 throw new Test262Error(`An unexpected error occurred when detaching ArrayBuffer: ${error.message}`); 42 } 43 44 assert.throws(TypeError, function() { 45 Atomics.wait(i64a, poisoned, poisoned, poisoned); 46 }); 47 48 reportCompare(0, 0);