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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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41 FUNCTION(3, Uint16Array, 2) | 41 FUNCTION(3, Uint16Array, 2) |
42 FUNCTION(4, Int16Array, 2) | 42 FUNCTION(4, Int16Array, 2) |
43 FUNCTION(5, Uint32Array, 4) | 43 FUNCTION(5, Uint32Array, 4) |
44 FUNCTION(6, Int32Array, 4) | 44 FUNCTION(6, Int32Array, 4) |
45 FUNCTION(7, Float32Array, 4) | 45 FUNCTION(7, Float32Array, 4) |
46 FUNCTION(8, Float64Array, 8) | 46 FUNCTION(8, Float64Array, 8) |
47 FUNCTION(9, Uint8ClampedArray, 1) | 47 FUNCTION(9, Uint8ClampedArray, 1) |
48 endmacro | 48 endmacro |
49 | 49 |
50 macro TYPED_ARRAY_CONSTRUCTOR(ARRAY_ID, NAME, ELEMENT_SIZE) | 50 macro TYPED_ARRAY_CONSTRUCTOR(ARRAY_ID, NAME, ELEMENT_SIZE) |
51 function NAMEConstructor(arg1, arg2, arg3) { | 51 function NAMEConstructByArrayBuffer(obj, buffer, byteOffset, length) { |
52 function ConstructByArrayBuffer(obj, buffer, byteOffset, length) { | 52 var offset = ToPositiveInteger(byteOffset, "invalid_typed_array_length") |
53 var offset = ToPositiveInteger(byteOffset, "invalid_typed_array_length") | |
54 | 53 |
55 if (offset % ELEMENT_SIZE !== 0) { | 54 if (offset % ELEMENT_SIZE !== 0) { |
56 throw MakeRangeError("invalid_typed_array_alignment", | 55 throw MakeRangeError("invalid_typed_array_alignment", |
57 "start offset", "NAME", ELEMENT_SIZE); | 56 "start offset", "NAME", ELEMENT_SIZE); |
58 } | 57 } |
59 var bufferByteLength = %ArrayBufferGetByteLength(buffer); | 58 var bufferByteLength = buffer.byteLength; |
60 if (offset > bufferByteLength) { | 59 if (offset > bufferByteLength) { |
61 throw MakeRangeError("invalid_typed_array_offset"); | 60 throw MakeRangeError("invalid_typed_array_offset"); |
62 } | |
63 | |
64 var newByteLength; | |
65 var newLength; | |
66 if (IS_UNDEFINED(length)) { | |
67 if (bufferByteLength % ELEMENT_SIZE !== 0) { | |
68 throw MakeRangeError("invalid_typed_array_alignment", | |
69 "byte length", "NAME", ELEMENT_SIZE); | |
70 } | |
71 newByteLength = bufferByteLength - offset; | |
72 newLength = newByteLength / ELEMENT_SIZE; | |
73 } else { | |
74 var newLength = ToPositiveInteger(length, "invalid_typed_array_length"); | |
75 newByteLength = newLength * ELEMENT_SIZE; | |
76 } | |
77 if (offset + newByteLength > bufferByteLength) { | |
78 throw MakeRangeError("invalid_typed_array_length"); | |
79 } | |
80 %TypedArrayInitialize(obj, ARRAY_ID, buffer, offset, newByteLength); | |
81 } | 61 } |
82 | 62 |
83 function ConstructByLength(obj, length) { | 63 var newByteLength; |
84 var l = ToPositiveInteger(length, "invalid_typed_array_length"); | 64 var newLength; |
85 var byteLength = l * ELEMENT_SIZE; | 65 if (IS_UNDEFINED(length)) { |
86 var buffer = new $ArrayBuffer(byteLength); | 66 if (bufferByteLength % ELEMENT_SIZE !== 0) { |
87 %TypedArrayInitialize(obj, ARRAY_ID, buffer, 0, byteLength); | 67 throw MakeRangeError("invalid_typed_array_alignment", |
| 68 "byte length", "NAME", ELEMENT_SIZE); |
| 69 } |
| 70 newByteLength = bufferByteLength - offset; |
| 71 newLength = newByteLength / ELEMENT_SIZE; |
| 72 } else { |
| 73 var newLength = ToPositiveInteger(length, "invalid_typed_array_length"); |
| 74 newByteLength = newLength * ELEMENT_SIZE; |
88 } | 75 } |
| 76 if (offset + newByteLength > bufferByteLength) { |
| 77 throw MakeRangeError("invalid_typed_array_length"); |
| 78 } |
| 79 %TypedArrayInitialize(obj, ARRAY_ID, buffer, offset, newByteLength); |
| 80 } |
89 | 81 |
90 function ConstructByArrayLike(obj, arrayLike) { | 82 function NAMEConstructByLength(obj, length) { |
91 var length = arrayLike.length; | 83 var l = ToPositiveInteger(length, "invalid_typed_array_length"); |
92 var l = ToPositiveInteger(length, "invalid_typed_array_length"); | 84 var byteLength = l * ELEMENT_SIZE; |
93 if(!%TypedArrayInitializeFromArrayLike(obj, ARRAY_ID, arrayLike, l)) { | 85 var buffer = new $ArrayBuffer(byteLength); |
94 for (var i = 0; i < l; i++) { | 86 %TypedArrayInitialize(obj, ARRAY_ID, buffer, 0, byteLength); |
95 // It is crucial that we let any execptions from arrayLike[i] | 87 } |
96 // propagate outside the function. | 88 |
97 obj[i] = arrayLike[i]; | 89 function NAMEConstructByArrayLike(obj, arrayLike) { |
98 } | 90 var length = arrayLike.length; |
| 91 var l = ToPositiveInteger(length, "invalid_typed_array_length"); |
| 92 if(!%TypedArrayInitializeFromArrayLike(obj, ARRAY_ID, arrayLike, l)) { |
| 93 for (var i = 0; i < l; i++) { |
| 94 // It is crucial that we let any execptions from arrayLike[i] |
| 95 // propagate outside the function. |
| 96 obj[i] = arrayLike[i]; |
99 } | 97 } |
100 } | 98 } |
| 99 } |
| 100 |
| 101 function NAMEConstructor(arg1, arg2, arg3) { |
101 | 102 |
102 if (%_IsConstructCall()) { | 103 if (%_IsConstructCall()) { |
103 if (IS_ARRAYBUFFER(arg1)) { | 104 if (IS_ARRAYBUFFER(arg1)) { |
104 ConstructByArrayBuffer(this, arg1, arg2, arg3); | 105 NAMEConstructByArrayBuffer(this, arg1, arg2, arg3); |
105 } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || | 106 } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || |
106 IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) { | 107 IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) { |
107 ConstructByLength(this, arg1); | 108 NAMEConstructByLength(this, arg1); |
108 } else { | 109 } else { |
109 ConstructByArrayLike(this, arg1); | 110 NAMEConstructByArrayLike(this, arg1); |
110 } | 111 } |
111 } else { | 112 } else { |
112 throw MakeTypeError("constructor_not_function", ["NAME"]) | 113 throw MakeTypeError("constructor_not_function", ["NAME"]) |
113 } | 114 } |
114 } | 115 } |
115 endmacro | 116 endmacro |
116 | 117 |
117 TYPED_ARRAYS(TYPED_ARRAY_CONSTRUCTOR) | 118 TYPED_ARRAYS(TYPED_ARRAY_CONSTRUCTOR) |
118 | 119 |
119 function TypedArrayGetBuffer() { | 120 function TypedArrayGetBuffer() { |
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277 InstallGetter(constructor.prototype, "byteOffset", TypedArrayGetByteOffset); | 278 InstallGetter(constructor.prototype, "byteOffset", TypedArrayGetByteOffset); |
278 InstallGetter(constructor.prototype, "byteLength", TypedArrayGetByteLength); | 279 InstallGetter(constructor.prototype, "byteLength", TypedArrayGetByteLength); |
279 InstallGetter(constructor.prototype, "length", TypedArrayGetLength); | 280 InstallGetter(constructor.prototype, "length", TypedArrayGetLength); |
280 | 281 |
281 InstallFunctions(constructor.prototype, DONT_ENUM, $Array( | 282 InstallFunctions(constructor.prototype, DONT_ENUM, $Array( |
282 "subarray", CreateSubArray(elementSize, constructor), | 283 "subarray", CreateSubArray(elementSize, constructor), |
283 "set", TypedArraySet | 284 "set", TypedArraySet |
284 )); | 285 )); |
285 } | 286 } |
286 | 287 |
287 | |
288 macro SETUP_TYPED_ARRAY(ARRAY_ID, NAME, ELEMENT_SIZE) | 288 macro SETUP_TYPED_ARRAY(ARRAY_ID, NAME, ELEMENT_SIZE) |
289 SetupTypedArray (global.NAME, NAMEConstructor, ELEMENT_SIZE); | 289 SetupTypedArray (global.NAME, NAMEConstructor, ELEMENT_SIZE); |
290 endmacro | 290 endmacro |
291 | 291 |
292 TYPED_ARRAYS(SETUP_TYPED_ARRAY) | 292 TYPED_ARRAYS(SETUP_TYPED_ARRAY) |
293 | 293 |
294 // --------------------------- DataView ----------------------------- | 294 // --------------------------- DataView ----------------------------- |
295 | 295 |
296 var $DataView = global.DataView; | 296 var $DataView = global.DataView; |
297 | 297 |
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595 | 595 |
596 "getFloat32", DataViewGetFloat32, | 596 "getFloat32", DataViewGetFloat32, |
597 "setFloat32", DataViewSetFloat32, | 597 "setFloat32", DataViewSetFloat32, |
598 | 598 |
599 "getFloat64", DataViewGetFloat64, | 599 "getFloat64", DataViewGetFloat64, |
600 "setFloat64", DataViewSetFloat64 | 600 "setFloat64", DataViewSetFloat64 |
601 )); | 601 )); |
602 } | 602 } |
603 | 603 |
604 SetupDataView(); | 604 SetupDataView(); |
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