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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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() { | |
| 6 | |
| 7 "use strict"; | 5 "use strict"; |
| 8 | 6 |
| 9 %CheckIsBootstrapping(); | 7 var $ArrayBuffer = global.ArrayBuffer; |
| 10 | |
| 11 var GlobalArrayBuffer = global.ArrayBuffer; | |
| 12 var GlobalObject = global.Object; | |
| 13 | 8 |
| 14 // ------------------------------------------------------------------- | 9 // ------------------------------------------------------------------- |
| 15 | 10 |
| 16 function ArrayBufferConstructor(length) { // length = 1 | 11 function ArrayBufferConstructor(length) { // length = 1 |
| 17 if (%_IsConstructCall()) { | 12 if (%_IsConstructCall()) { |
| 18 var byteLength = ToPositiveInteger(length, 'invalid_array_buffer_length'); | 13 var byteLength = ToPositiveInteger(length, 'invalid_array_buffer_length'); |
| 19 %ArrayBufferInitialize(this, byteLength); | 14 %ArrayBufferInitialize(this, byteLength); |
| 20 } else { | 15 } else { |
| 21 throw MakeTypeError('constructor_not_function', ["ArrayBuffer"]); | 16 throw MakeTypeError('constructor_not_function', ["ArrayBuffer"]); |
| 22 } | 17 } |
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| 54 fin = $max(byte_length + relativeEnd, 0); | 49 fin = $max(byte_length + relativeEnd, 0); |
| 55 } else { | 50 } else { |
| 56 fin = $min(relativeEnd, byte_length); | 51 fin = $min(relativeEnd, byte_length); |
| 57 } | 52 } |
| 58 | 53 |
| 59 if (fin < first) { | 54 if (fin < first) { |
| 60 fin = first; | 55 fin = first; |
| 61 } | 56 } |
| 62 var newLen = fin - first; | 57 var newLen = fin - first; |
| 63 // TODO(dslomov): implement inheritance | 58 // TODO(dslomov): implement inheritance |
| 64 var result = new GlobalArrayBuffer(newLen); | 59 var result = new $ArrayBuffer(newLen); |
| 65 | 60 |
| 66 %ArrayBufferSliceImpl(this, result, first); | 61 %ArrayBufferSliceImpl(this, result, first); |
| 67 return result; | 62 return result; |
| 68 } | 63 } |
| 69 | 64 |
| 70 function ArrayBufferIsViewJS(obj) { | 65 function ArrayBufferIsViewJS(obj) { |
| 71 return %ArrayBufferIsView(obj); | 66 return %ArrayBufferIsView(obj); |
| 72 } | 67 } |
| 73 | 68 |
| 69 function SetUpArrayBuffer() { |
| 70 %CheckIsBootstrapping(); |
| 74 | 71 |
| 75 // Set up the ArrayBuffer constructor function. | 72 // Set up the ArrayBuffer constructor function. |
| 76 %SetCode(GlobalArrayBuffer, ArrayBufferConstructor); | 73 %SetCode($ArrayBuffer, ArrayBufferConstructor); |
| 77 %FunctionSetPrototype(GlobalArrayBuffer, new GlobalObject()); | 74 %FunctionSetPrototype($ArrayBuffer, new $Object()); |
| 78 | 75 |
| 79 // Set up the constructor property on the ArrayBuffer prototype object. | 76 // Set up the constructor property on the ArrayBuffer prototype object. |
| 80 %AddNamedProperty( | 77 %AddNamedProperty( |
| 81 GlobalArrayBuffer.prototype, "constructor", GlobalArrayBuffer, DONT_ENUM); | 78 $ArrayBuffer.prototype, "constructor", $ArrayBuffer, DONT_ENUM); |
| 82 | 79 |
| 83 %AddNamedProperty(GlobalArrayBuffer.prototype, | 80 %AddNamedProperty($ArrayBuffer.prototype, |
| 84 symbolToStringTag, "ArrayBuffer", DONT_ENUM | READ_ONLY); | 81 symbolToStringTag, "ArrayBuffer", DONT_ENUM | READ_ONLY); |
| 85 | 82 |
| 86 InstallGetter(GlobalArrayBuffer.prototype, "byteLength", ArrayBufferGetByteLen); | 83 InstallGetter($ArrayBuffer.prototype, "byteLength", ArrayBufferGetByteLen); |
| 87 | 84 |
| 88 InstallFunctions(GlobalArrayBuffer, DONT_ENUM, [ | 85 InstallFunctions($ArrayBuffer, DONT_ENUM, [ |
| 89 "isView", ArrayBufferIsViewJS | 86 "isView", ArrayBufferIsViewJS |
| 90 ]); | 87 ]); |
| 91 | 88 |
| 92 InstallFunctions(GlobalArrayBuffer.prototype, DONT_ENUM, [ | 89 InstallFunctions($ArrayBuffer.prototype, DONT_ENUM, [ |
| 93 "slice", ArrayBufferSlice | 90 "slice", ArrayBufferSlice |
| 94 ]); | 91 ]); |
| 92 } |
| 95 | 93 |
| 96 })(); | 94 SetUpArrayBuffer(); |
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