OLD | NEW |
1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 (function(global, utils) { | 5 (function(global, utils) { |
6 | 6 |
7 "use strict"; | 7 "use strict"; |
8 | 8 |
9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
10 | 10 |
11 var GlobalSharedArrayBuffer = global.SharedArrayBuffer; | 11 var GlobalSharedArrayBuffer = global.SharedArrayBuffer; |
12 var GlobalObject = global.Object; | |
13 var MakeTypeError; | 12 var MakeTypeError; |
14 var ToPositiveInteger; | |
15 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol"); | |
16 | 13 |
17 utils.Import(function(from) { | 14 utils.Import(function(from) { |
18 MakeTypeError = from.MakeTypeError; | 15 MakeTypeError = from.MakeTypeError; |
19 ToPositiveInteger = from.ToPositiveInteger; | |
20 }) | 16 }) |
21 | 17 |
22 // ------------------------------------------------------------------- | 18 // ------------------------------------------------------------------- |
23 | 19 |
24 function SharedArrayBufferConstructor(length) { // length = 1 | |
25 if (!IS_UNDEFINED(new.target)) { | |
26 var byteLength = ToPositiveInteger(length, kInvalidArrayBufferLength); | |
27 %ArrayBufferInitialize(this, byteLength, kShared); | |
28 } else { | |
29 throw MakeTypeError(kConstructorNotFunction, "SharedArrayBuffer"); | |
30 } | |
31 } | |
32 | |
33 function SharedArrayBufferGetByteLen() { | 20 function SharedArrayBufferGetByteLen() { |
34 if (!IS_SHAREDARRAYBUFFER(this)) { | 21 if (!IS_SHAREDARRAYBUFFER(this)) { |
35 throw MakeTypeError(kIncompatibleMethodReceiver, | 22 throw MakeTypeError(kIncompatibleMethodReceiver, |
36 'SharedArrayBuffer.prototype.byteLength', this); | 23 'SharedArrayBuffer.prototype.byteLength', this); |
37 } | 24 } |
38 return %_ArrayBufferGetByteLength(this); | 25 return %_ArrayBufferGetByteLength(this); |
39 } | 26 } |
40 | 27 |
41 function SharedArrayBufferIsViewJS(obj) { | |
42 return %ArrayBufferIsView(obj); | |
43 } | |
44 | |
45 | |
46 // Set up the SharedArrayBuffer constructor function. | |
47 %SetCode(GlobalSharedArrayBuffer, SharedArrayBufferConstructor); | |
48 %FunctionSetPrototype(GlobalSharedArrayBuffer, new GlobalObject()); | |
49 | |
50 // Set up the constructor property on the SharedArrayBuffer prototype object. | |
51 %AddNamedProperty(GlobalSharedArrayBuffer.prototype, "constructor", | |
52 GlobalSharedArrayBuffer, DONT_ENUM); | |
53 | |
54 %AddNamedProperty(GlobalSharedArrayBuffer.prototype, | |
55 toStringTagSymbol, "SharedArrayBuffer", DONT_ENUM | READ_ONLY); | |
56 | |
57 utils.InstallGetter(GlobalSharedArrayBuffer.prototype, "byteLength", | 28 utils.InstallGetter(GlobalSharedArrayBuffer.prototype, "byteLength", |
58 SharedArrayBufferGetByteLen); | 29 SharedArrayBufferGetByteLen); |
59 | 30 |
60 utils.InstallFunctions(GlobalSharedArrayBuffer, DONT_ENUM, [ | |
61 "isView", SharedArrayBufferIsViewJS | |
62 ]); | |
63 | |
64 }) | 31 }) |
OLD | NEW |