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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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51 function NAMEConstructByArrayBuffer(obj, buffer, byteOffset, length) { | 51 function NAMEConstructByArrayBuffer(obj, buffer, byteOffset, length) { |
52 var bufferByteLength = buffer.byteLength; | 52 var bufferByteLength = buffer.byteLength; |
53 var offset; | 53 var offset; |
54 if (IS_UNDEFINED(byteOffset)) { | 54 if (IS_UNDEFINED(byteOffset)) { |
55 offset = 0; | 55 offset = 0; |
56 } else { | 56 } else { |
57 offset = ToPositiveInteger(byteOffset, "invalid_typed_array_length"); | 57 offset = ToPositiveInteger(byteOffset, "invalid_typed_array_length"); |
58 | 58 |
59 if (offset % ELEMENT_SIZE !== 0) { | 59 if (offset % ELEMENT_SIZE !== 0) { |
60 throw MakeRangeError("invalid_typed_array_alignment", | 60 throw MakeRangeError("invalid_typed_array_alignment", |
61 "start offset", "NAME", ELEMENT_SIZE); | 61 ["start offset", "NAME", ELEMENT_SIZE]); |
62 } | 62 } |
63 if (offset > bufferByteLength) { | 63 if (offset > bufferByteLength) { |
64 throw MakeRangeError("invalid_typed_array_offset"); | 64 throw MakeRangeError("invalid_typed_array_offset"); |
65 } | 65 } |
66 } | 66 } |
67 | 67 |
68 var newByteLength; | 68 var newByteLength; |
69 var newLength; | 69 var newLength; |
70 if (IS_UNDEFINED(length)) { | 70 if (IS_UNDEFINED(length)) { |
71 if (bufferByteLength % ELEMENT_SIZE !== 0) { | 71 if (bufferByteLength % ELEMENT_SIZE !== 0) { |
72 throw MakeRangeError("invalid_typed_array_alignment", | 72 throw MakeRangeError("invalid_typed_array_alignment", |
73 "byte length", "NAME", ELEMENT_SIZE); | 73 ["byte length", "NAME", ELEMENT_SIZE]); |
74 } | 74 } |
75 newByteLength = bufferByteLength - offset; | 75 newByteLength = bufferByteLength - offset; |
76 newLength = newByteLength / ELEMENT_SIZE; | 76 newLength = newByteLength / ELEMENT_SIZE; |
77 } else { | 77 } else { |
78 var newLength = ToPositiveInteger(length, "invalid_typed_array_length"); | 78 var newLength = ToPositiveInteger(length, "invalid_typed_array_length"); |
79 newByteLength = newLength * ELEMENT_SIZE; | 79 newByteLength = newLength * ELEMENT_SIZE; |
80 } | 80 } |
81 if ((offset + newByteLength > bufferByteLength) | 81 if ((offset + newByteLength > bufferByteLength) |
82 || (newLength > %MaxSmi())) { | 82 || (newLength > %MaxSmi())) { |
83 throw MakeRangeError("invalid_typed_array_length"); | 83 throw MakeRangeError("invalid_typed_array_length"); |
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440 | 440 |
441 "getFloat32", DataViewGetFloat32, | 441 "getFloat32", DataViewGetFloat32, |
442 "setFloat32", DataViewSetFloat32, | 442 "setFloat32", DataViewSetFloat32, |
443 | 443 |
444 "getFloat64", DataViewGetFloat64, | 444 "getFloat64", DataViewGetFloat64, |
445 "setFloat64", DataViewSetFloat64 | 445 "setFloat64", DataViewSetFloat64 |
446 )); | 446 )); |
447 } | 447 } |
448 | 448 |
449 SetupDataView(); | 449 SetupDataView(); |
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