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35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
// Copyright (C) 2015 André Bargull. All rights reserved.
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// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-sharedarraybuffer-length
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description: >
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Throws a RangeError if requested Data Block is too large.
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info: |
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SharedArrayBuffer( length )
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...
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3. Return AllocateSharedArrayBuffer(NewTarget, byteLength).
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6.2.7.2 CreateSharedByteDataBlock(size)
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...
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2. Let db be a new Shared Data Block value consisting of size
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bytes. If it is impossible to create such a Shared Data Block,
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throw a RangeError exception.
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...
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features: [SharedArrayBuffer]
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---*/
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assert.throws(RangeError, function() {
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// Allocating 7 PiB should fail with a RangeError.
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// Math.pow(1024, 5) = 1125899906842624
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new SharedArrayBuffer(7 * 1125899906842624);
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}, "`length` parameter is 7 PiB");
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assert.throws(RangeError, function() {
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// Allocating almost 8 PiB should fail with a RangeError.
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// Math.pow(2, 53) = 9007199254740992
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new SharedArrayBuffer(9007199254740992 - 1);
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}, "`length` parameter is Math.pow(2, 53) - 1");
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