allocation-limit.js (1277B)
1 // |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally 2 // Copyright (C) 2015 André Bargull. All rights reserved. 3 // Copyright (C) 2017 Mozilla Corporation. All rights reserved. 4 // This code is governed by the BSD license found in the LICENSE file. 5 6 /*--- 7 esid: sec-sharedarraybuffer-length 8 description: > 9 Throws a RangeError if requested Data Block is too large. 10 info: | 11 SharedArrayBuffer( length ) 12 13 ... 14 3. Return AllocateSharedArrayBuffer(NewTarget, byteLength). 15 16 6.2.7.2 CreateSharedByteDataBlock(size) 17 ... 18 2. Let db be a new Shared Data Block value consisting of size 19 bytes. If it is impossible to create such a Shared Data Block, 20 throw a RangeError exception. 21 ... 22 features: [SharedArrayBuffer] 23 ---*/ 24 25 assert.throws(RangeError, function() { 26 // Allocating 7 PiB should fail with a RangeError. 27 // Math.pow(1024, 5) = 1125899906842624 28 new SharedArrayBuffer(7 * 1125899906842624); 29 }, "`length` parameter is 7 PiB"); 30 31 assert.throws(RangeError, function() { 32 // Allocating almost 8 PiB should fail with a RangeError. 33 // Math.pow(2, 53) = 9007199254740992 34 new SharedArrayBuffer(9007199254740992 - 1); 35 }, "`length` parameter is Math.pow(2, 53) - 1"); 36 37 reportCompare(0, 0);