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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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70 function ConstructByLength(obj, length) { | 70 function ConstructByLength(obj, length) { |
71 var l = ToPositiveInteger(length, "invalid_typed_array_length"); | 71 var l = ToPositiveInteger(length, "invalid_typed_array_length"); |
72 var byteLength = l * elementSize; | 72 var byteLength = l * elementSize; |
73 var buffer = new global.ArrayBuffer(byteLength); | 73 var buffer = new global.ArrayBuffer(byteLength); |
74 %TypedArrayInitialize(obj, arrayId, buffer, 0, byteLength); | 74 %TypedArrayInitialize(obj, arrayId, buffer, 0, byteLength); |
75 } | 75 } |
76 | 76 |
77 function ConstructByArrayLike(obj, arrayLike) { | 77 function ConstructByArrayLike(obj, arrayLike) { |
78 var length = arrayLike.length; | 78 var length = arrayLike.length; |
79 var l = ToPositiveInteger(length, "invalid_typed_array_length"); | 79 var l = ToPositiveInteger(length, "invalid_typed_array_length"); |
80 var byteLength = l * elementSize; | 80 if(!%TypedArrayInitializeFromArrayLike(obj, arrayId, arrayLike, l)) { |
81 var buffer = new $ArrayBuffer(byteLength); | 81 for (var i = 0; i < l; i++) { |
82 %TypedArrayInitialize(obj, arrayId, buffer, 0, byteLength); | 82 obj[i] = arrayLike[i]; |
83 for (var i = 0; i < l; i++) { | 83 } |
84 obj[i] = arrayLike[i]; | |
85 } | 84 } |
86 } | 85 } |
87 | 86 |
88 return function (arg1, arg2, arg3) { | 87 return function (arg1, arg2, arg3) { |
89 if (%_IsConstructCall()) { | 88 if (%_IsConstructCall()) { |
90 if (IS_ARRAYBUFFER(arg1)) { | 89 if (IS_ARRAYBUFFER(arg1)) { |
91 ConstructByArrayBuffer(this, arg1, arg2, arg3); | 90 ConstructByArrayBuffer(this, arg1, arg2, arg3); |
92 } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || | 91 } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || |
93 IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) { | 92 IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) { |
94 ConstructByLength(this, arg1); | 93 ConstructByLength(this, arg1); |
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587 | 586 |
588 "getFloat32", DataViewGetFloat32, | 587 "getFloat32", DataViewGetFloat32, |
589 "setFloat32", DataViewSetFloat32, | 588 "setFloat32", DataViewSetFloat32, |
590 | 589 |
591 "getFloat64", DataViewGetFloat64, | 590 "getFloat64", DataViewGetFloat64, |
592 "setFloat64", DataViewSetFloat64 | 591 "setFloat64", DataViewSetFloat64 |
593 )); | 592 )); |
594 } | 593 } |
595 | 594 |
596 SetupDataView(); | 595 SetupDataView(); |
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