OLD | NEW |
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(global, utils) { | 5 (function(global, shared, exports) { |
6 | 6 |
7 "use strict"; | 7 "use strict"; |
8 | 8 |
9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
10 | 10 |
11 | |
12 // ------------------------------------------------------------------- | |
13 // Imports | |
14 | |
15 var GlobalArrayBuffer = global.ArrayBuffer; | 11 var GlobalArrayBuffer = global.ArrayBuffer; |
16 var GlobalObject = global.Object; | 12 var GlobalObject = global.Object; |
17 | 13 |
18 var MathMax; | |
19 var MathMin; | |
20 | |
21 utils.Import(function(from) { | |
22 MathMax = from.MathMax; | |
23 MathMin = from.MathMin; | |
24 }); | |
25 | |
26 // ------------------------------------------------------------------- | 14 // ------------------------------------------------------------------- |
27 | 15 |
28 function ArrayBufferConstructor(length) { // length = 1 | 16 function ArrayBufferConstructor(length) { // length = 1 |
29 if (%_IsConstructCall()) { | 17 if (%_IsConstructCall()) { |
30 var byteLength = $toPositiveInteger(length, kInvalidArrayBufferLength); | 18 var byteLength = $toPositiveInteger(length, kInvalidArrayBufferLength); |
31 %ArrayBufferInitialize(this, byteLength); | 19 %ArrayBufferInitialize(this, byteLength); |
32 } else { | 20 } else { |
33 throw MakeTypeError(kConstructorNotFunction, "ArrayBuffer"); | 21 throw MakeTypeError(kConstructorNotFunction, "ArrayBuffer"); |
34 } | 22 } |
35 } | 23 } |
(...skipping 13 matching lines...) Expand all Loading... |
49 'ArrayBuffer.prototype.slice', this); | 37 'ArrayBuffer.prototype.slice', this); |
50 } | 38 } |
51 | 39 |
52 var relativeStart = TO_INTEGER(start); | 40 var relativeStart = TO_INTEGER(start); |
53 if (!IS_UNDEFINED(end)) { | 41 if (!IS_UNDEFINED(end)) { |
54 end = TO_INTEGER(end); | 42 end = TO_INTEGER(end); |
55 } | 43 } |
56 var first; | 44 var first; |
57 var byte_length = %_ArrayBufferGetByteLength(this); | 45 var byte_length = %_ArrayBufferGetByteLength(this); |
58 if (relativeStart < 0) { | 46 if (relativeStart < 0) { |
59 first = MathMax(byte_length + relativeStart, 0); | 47 first = $max(byte_length + relativeStart, 0); |
60 } else { | 48 } else { |
61 first = MathMin(relativeStart, byte_length); | 49 first = $min(relativeStart, byte_length); |
62 } | 50 } |
63 var relativeEnd = IS_UNDEFINED(end) ? byte_length : end; | 51 var relativeEnd = IS_UNDEFINED(end) ? byte_length : end; |
64 var fin; | 52 var fin; |
65 if (relativeEnd < 0) { | 53 if (relativeEnd < 0) { |
66 fin = MathMax(byte_length + relativeEnd, 0); | 54 fin = $max(byte_length + relativeEnd, 0); |
67 } else { | 55 } else { |
68 fin = MathMin(relativeEnd, byte_length); | 56 fin = $min(relativeEnd, byte_length); |
69 } | 57 } |
70 | 58 |
71 if (fin < first) { | 59 if (fin < first) { |
72 fin = first; | 60 fin = first; |
73 } | 61 } |
74 var newLen = fin - first; | 62 var newLen = fin - first; |
75 // TODO(dslomov): implement inheritance | 63 // TODO(dslomov): implement inheritance |
76 var result = new GlobalArrayBuffer(newLen); | 64 var result = new GlobalArrayBuffer(newLen); |
77 | 65 |
78 %ArrayBufferSliceImpl(this, result, first); | 66 %ArrayBufferSliceImpl(this, result, first); |
(...skipping 20 matching lines...) Expand all Loading... |
99 | 87 |
100 $installFunctions(GlobalArrayBuffer, DONT_ENUM, [ | 88 $installFunctions(GlobalArrayBuffer, DONT_ENUM, [ |
101 "isView", ArrayBufferIsViewJS | 89 "isView", ArrayBufferIsViewJS |
102 ]); | 90 ]); |
103 | 91 |
104 $installFunctions(GlobalArrayBuffer.prototype, DONT_ENUM, [ | 92 $installFunctions(GlobalArrayBuffer.prototype, DONT_ENUM, [ |
105 "slice", ArrayBufferSlice | 93 "slice", ArrayBufferSlice |
106 ]); | 94 ]); |
107 | 95 |
108 }) | 96 }) |
OLD | NEW |