mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | "use strict"; |
| 29 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 30 | // This file relies on the fact that the following declaration has been made |
| 31 | // in runtime.js: |
| 32 | // var $Array = global.Array; |
| 33 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 34 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 35 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 36 | // --------------- Typed Arrays --------------------- |
| 37 | |
| 38 | function CreateTypedArrayConstructor(name, elementSize, arrayId, constructor) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 39 | function ConstructByArrayBuffer(obj, buffer, byteOffset, length) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 40 | var offset = ToPositiveInteger(byteOffset, "invalid_typed_array_length") |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 41 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 42 | if (offset % elementSize !== 0) { |
| 43 | throw MakeRangeError("invalid_typed_array_alignment", |
| 44 | "start offset", name, elementSize); |
| 45 | } |
| 46 | var bufferByteLength = %ArrayBufferGetByteLength(buffer); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 47 | if (offset > bufferByteLength) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 48 | throw MakeRangeError("invalid_typed_array_offset"); |
| 49 | } |
| 50 | |
| 51 | var newByteLength; |
| 52 | var newLength; |
| 53 | if (IS_UNDEFINED(length)) { |
| 54 | if (bufferByteLength % elementSize !== 0) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 55 | throw MakeRangeError("invalid_typed_array_alignment", |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 56 | "byte length", name, elementSize); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 57 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 58 | newByteLength = bufferByteLength - offset; |
| 59 | newLength = newByteLength / elementSize; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 60 | } else { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 61 | var newLength = ToPositiveInteger(length, "invalid_typed_array_length"); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 62 | newByteLength = newLength * elementSize; |
| 63 | } |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 64 | if (offset + newByteLength > bufferByteLength) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 65 | throw MakeRangeError("invalid_typed_array_length"); |
| 66 | } |
| 67 | %TypedArrayInitialize(obj, arrayId, buffer, offset, newByteLength); |
| 68 | } |
| 69 | |
| 70 | function ConstructByLength(obj, length) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 71 | var l = ToPositiveInteger(length, "invalid_typed_array_length"); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 72 | var byteLength = l * elementSize; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 73 | var buffer = new global.ArrayBuffer(byteLength); |
| 74 | %TypedArrayInitialize(obj, arrayId, buffer, 0, byteLength); |
| 75 | } |
| 76 | |
| 77 | function ConstructByArrayLike(obj, arrayLike) { |
| 78 | var length = arrayLike.length; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 79 | var l = ToPositiveInteger(length, "invalid_typed_array_length"); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 80 | var byteLength = l * elementSize; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 81 | var buffer = new $ArrayBuffer(byteLength); |
| 82 | %TypedArrayInitialize(obj, arrayId, buffer, 0, byteLength); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 83 | for (var i = 0; i < l; i++) { |
| 84 | obj[i] = arrayLike[i]; |
| 85 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | return function (arg1, arg2, arg3) { |
| 89 | if (%_IsConstructCall()) { |
| 90 | if (IS_ARRAYBUFFER(arg1)) { |
| 91 | ConstructByArrayBuffer(this, arg1, arg2, arg3); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 92 | } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || IS_BOOLEAN(arg1)) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 93 | ConstructByLength(this, arg1); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 94 | } else if (!IS_UNDEFINED(arg1)){ |
| 95 | ConstructByArrayLike(this, arg1); |
| 96 | } else { |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 97 | throw MakeTypeError("parameterless_typed_array_constr", [name]); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 98 | } |
| 99 | } else { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 100 | throw MakeTypeError("constructor_not_function", [name]) |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 101 | } |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | function TypedArrayGetBuffer() { |
| 106 | return %TypedArrayGetBuffer(this); |
| 107 | } |
| 108 | |
| 109 | function TypedArrayGetByteLength() { |
| 110 | return %TypedArrayGetByteLength(this); |
| 111 | } |
| 112 | |
| 113 | function TypedArrayGetByteOffset() { |
| 114 | return %TypedArrayGetByteOffset(this); |
| 115 | } |
| 116 | |
| 117 | function TypedArrayGetLength() { |
| 118 | return %TypedArrayGetLength(this); |
| 119 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 120 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 121 | function CreateSubArray(elementSize, constructor) { |
| 122 | return function(begin, end) { |
| 123 | var srcLength = %TypedArrayGetLength(this); |
| 124 | var beginInt = TO_INTEGER(begin); |
| 125 | if (beginInt < 0) { |
| 126 | beginInt = MathMax(0, srcLength + beginInt); |
| 127 | } else { |
| 128 | beginInt = MathMin(srcLength, beginInt); |
| 129 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 130 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 131 | var endInt = IS_UNDEFINED(end) ? srcLength : TO_INTEGER(end); |
| 132 | if (endInt < 0) { |
| 133 | endInt = MathMax(0, srcLength + endInt); |
| 134 | } else { |
| 135 | endInt = MathMin(endInt, srcLength); |
| 136 | } |
| 137 | if (endInt < beginInt) { |
| 138 | endInt = beginInt; |
| 139 | } |
| 140 | var newLength = endInt - beginInt; |
| 141 | var beginByteOffset = |
| 142 | %TypedArrayGetByteOffset(this) + beginInt * elementSize; |
| 143 | return new constructor(%TypedArrayGetBuffer(this), |
| 144 | beginByteOffset, newLength); |
| 145 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 146 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 147 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 148 | function TypedArraySet(obj, offset) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 149 | var intOffset = IS_UNDEFINED(offset) ? 0 : TO_INTEGER(offset); |
| 150 | if (intOffset < 0) { |
| 151 | throw MakeTypeError("typed_array_set_negative_offset"); |
| 152 | } |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 153 | if (%TypedArraySetFastCases(this, obj, intOffset)) |
| 154 | return; |
| 155 | |
| 156 | var l = obj.length; |
| 157 | if (IS_UNDEFINED(l)) { |
| 158 | throw MakeTypeError("invalid_argument"); |
| 159 | } |
| 160 | if (intOffset + l > this.length) { |
| 161 | throw MakeRangeError("typed_array_set_source_too_large"); |
| 162 | } |
| 163 | for (var i = 0; i < l; i++) { |
| 164 | this[intOffset + i] = obj[i]; |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | // ------------------------------------------------------------------- |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 169 | |
| 170 | function SetupTypedArray(arrayId, name, constructor, elementSize) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 171 | %CheckIsBootstrapping(); |
| 172 | var fun = CreateTypedArrayConstructor(name, elementSize, |
| 173 | arrayId, constructor); |
| 174 | %SetCode(constructor, fun); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 175 | %FunctionSetPrototype(constructor, new $Object()); |
| 176 | |
| 177 | %SetProperty(constructor.prototype, |
| 178 | "constructor", constructor, DONT_ENUM); |
| 179 | %SetProperty(constructor.prototype, |
| 180 | "BYTES_PER_ELEMENT", elementSize, |
| 181 | READ_ONLY | DONT_ENUM | DONT_DELETE); |
| 182 | InstallGetter(constructor.prototype, "buffer", TypedArrayGetBuffer); |
| 183 | InstallGetter(constructor.prototype, "byteOffset", TypedArrayGetByteOffset); |
| 184 | InstallGetter(constructor.prototype, "byteLength", TypedArrayGetByteLength); |
| 185 | InstallGetter(constructor.prototype, "length", TypedArrayGetLength); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 186 | |
| 187 | InstallFunctions(constructor.prototype, DONT_ENUM, $Array( |
| 188 | "subarray", CreateSubArray(elementSize, constructor), |
| 189 | "set", TypedArraySet |
| 190 | )); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | // arrayIds below should be synchronized with Runtime_TypedArrayInitialize. |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 194 | SetupTypedArray(1, "Uint8Array", global.Uint8Array, 1); |
| 195 | SetupTypedArray(2, "Int8Array", global.Int8Array, 1); |
| 196 | SetupTypedArray(3, "Uint16Array", global.Uint16Array, 2); |
| 197 | SetupTypedArray(4, "Int16Array", global.Int16Array, 2); |
| 198 | SetupTypedArray(5, "Uint32Array", global.Uint32Array, 4); |
| 199 | SetupTypedArray(6, "Int32Array", global.Int32Array, 4); |
| 200 | SetupTypedArray(7, "Float32Array", global.Float32Array, 4); |
| 201 | SetupTypedArray(8, "Float64Array", global.Float64Array, 8); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 202 | SetupTypedArray(9, "Uint8ClampedArray", global.Uint8ClampedArray, 1); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame^] | 203 | |
| 204 | |
| 205 | // --------------------------- DataView ----------------------------- |
| 206 | |
| 207 | var $DataView = global.DataView; |
| 208 | |
| 209 | function DataViewConstructor(buffer, byteOffset, byteLength) { // length = 3 |
| 210 | if (%_IsConstructCall()) { |
| 211 | if (!IS_ARRAYBUFFER(buffer)) { |
| 212 | throw MakeTypeError('data_view_not_array_buffer', []); |
| 213 | } |
| 214 | var bufferByteLength = %ArrayBufferGetByteLength(buffer); |
| 215 | var offset = ToPositiveInteger(byteOffset, 'invalid_data_view_offset'); |
| 216 | if (offset > bufferByteLength) { |
| 217 | throw MakeRangeError('invalid_data_view_offset'); |
| 218 | } |
| 219 | var length = IS_UNDEFINED(byteLength) ? |
| 220 | bufferByteLength - offset : TO_INTEGER(byteLength); |
| 221 | if (length < 0 || offset + length > bufferByteLength) { |
| 222 | throw new MakeRangeError('invalid_data_view_length'); |
| 223 | } |
| 224 | %DataViewInitialize(this, buffer, offset, length); |
| 225 | } else { |
| 226 | throw MakeTypeError('constructor_not_function', ["DataView"]); |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | function DataViewGetBuffer() { |
| 231 | if (!IS_DATAVIEW(this)) { |
| 232 | throw MakeTypeError('incompatible_method_reciever', |
| 233 | ['DataView.buffer', this]); |
| 234 | } |
| 235 | return %DataViewGetBuffer(this); |
| 236 | } |
| 237 | |
| 238 | function DataViewGetByteOffset() { |
| 239 | if (!IS_DATAVIEW(this)) { |
| 240 | throw MakeTypeError('incompatible_method_reciever', |
| 241 | ['DataView.byteOffset', this]); |
| 242 | } |
| 243 | return %DataViewGetByteOffset(this); |
| 244 | } |
| 245 | |
| 246 | function DataViewGetByteLength() { |
| 247 | if (!IS_DATAVIEW(this)) { |
| 248 | throw MakeTypeError('incompatible_method_reciever', |
| 249 | ['DataView.byteLength', this]); |
| 250 | } |
| 251 | return %DataViewGetByteLength(this); |
| 252 | } |
| 253 | |
| 254 | function ToPositiveDataViewOffset(offset) { |
| 255 | return ToPositiveInteger(offset, 'invalid_data_view_accessor_offset'); |
| 256 | } |
| 257 | |
| 258 | function DataViewGetInt8(offset, little_endian) { |
| 259 | if (!IS_DATAVIEW(this)) { |
| 260 | throw MakeTypeError('incompatible_method_reciever', |
| 261 | ['DataView.getInt8', this]); |
| 262 | } |
| 263 | return %DataViewGetInt8(this, |
| 264 | ToPositiveDataViewOffset(offset), |
| 265 | !!little_endian); |
| 266 | } |
| 267 | |
| 268 | function DataViewSetInt8(offset, value, little_endian) { |
| 269 | if (!IS_DATAVIEW(this)) { |
| 270 | throw MakeTypeError('incompatible_method_reciever', |
| 271 | ['DataView.setInt8', this]); |
| 272 | } |
| 273 | %DataViewSetInt8(this, |
| 274 | ToPositiveDataViewOffset(offset), |
| 275 | TO_NUMBER_INLINE(value), |
| 276 | !!little_endian); |
| 277 | } |
| 278 | |
| 279 | function DataViewGetUint8(offset, little_endian) { |
| 280 | if (!IS_DATAVIEW(this)) { |
| 281 | throw MakeTypeError('incompatible_method_reciever', |
| 282 | ['DataView.getUint8', this]); |
| 283 | } |
| 284 | return %DataViewGetUint8(this, |
| 285 | ToPositiveDataViewOffset(offset), |
| 286 | !!little_endian); |
| 287 | } |
| 288 | |
| 289 | function DataViewSetUint8(offset, value, little_endian) { |
| 290 | if (!IS_DATAVIEW(this)) { |
| 291 | throw MakeTypeError('incompatible_method_reciever', |
| 292 | ['DataView.setUint8', this]); |
| 293 | } |
| 294 | %DataViewSetUint8(this, |
| 295 | ToPositiveDataViewOffset(offset), |
| 296 | TO_NUMBER_INLINE(value), |
| 297 | !!little_endian); |
| 298 | } |
| 299 | |
| 300 | function DataViewGetInt16(offset, little_endian) { |
| 301 | if (!IS_DATAVIEW(this)) { |
| 302 | throw MakeTypeError('incompatible_method_reciever', |
| 303 | ['DataView.getInt16', this]); |
| 304 | } |
| 305 | return %DataViewGetInt16(this, |
| 306 | ToPositiveDataViewOffset(offset), |
| 307 | !!little_endian); |
| 308 | } |
| 309 | |
| 310 | function DataViewSetInt16(offset, value, little_endian) { |
| 311 | if (!IS_DATAVIEW(this)) { |
| 312 | throw MakeTypeError('incompatible_method_reciever', |
| 313 | ['DataView.setInt16', this]); |
| 314 | } |
| 315 | %DataViewSetInt16(this, |
| 316 | ToPositiveDataViewOffset(offset), |
| 317 | TO_NUMBER_INLINE(value), |
| 318 | !!little_endian); |
| 319 | } |
| 320 | |
| 321 | function DataViewGetUint16(offset, little_endian) { |
| 322 | if (!IS_DATAVIEW(this)) { |
| 323 | throw MakeTypeError('incompatible_method_reciever', |
| 324 | ['DataView.getUint16', this]); |
| 325 | } |
| 326 | return %DataViewGetUint16(this, |
| 327 | ToPositiveDataViewOffset(offset), |
| 328 | !!little_endian); |
| 329 | } |
| 330 | |
| 331 | function DataViewSetUint16(offset, value, little_endian) { |
| 332 | if (!IS_DATAVIEW(this)) { |
| 333 | throw MakeTypeError('incompatible_method_reciever', |
| 334 | ['DataView.setUint16', this]); |
| 335 | } |
| 336 | %DataViewSetUint16(this, |
| 337 | ToPositiveDataViewOffset(offset), |
| 338 | TO_NUMBER_INLINE(value), |
| 339 | !!little_endian); |
| 340 | } |
| 341 | |
| 342 | function DataViewGetInt32(offset, little_endian) { |
| 343 | if (!IS_DATAVIEW(this)) { |
| 344 | throw MakeTypeError('incompatible_method_reciever', |
| 345 | ['DataView.getInt32', this]); |
| 346 | } |
| 347 | return %DataViewGetInt32(this, |
| 348 | ToPositiveDataViewOffset(offset), |
| 349 | !!little_endian); |
| 350 | } |
| 351 | |
| 352 | function DataViewSetInt32(offset, value, little_endian) { |
| 353 | if (!IS_DATAVIEW(this)) { |
| 354 | throw MakeTypeError('incompatible_method_reciever', |
| 355 | ['DataView.setInt32', this]); |
| 356 | } |
| 357 | %DataViewSetInt32(this, |
| 358 | ToPositiveDataViewOffset(offset), |
| 359 | TO_NUMBER_INLINE(value), |
| 360 | !!little_endian); |
| 361 | } |
| 362 | |
| 363 | function DataViewGetUint32(offset, little_endian) { |
| 364 | if (!IS_DATAVIEW(this)) { |
| 365 | throw MakeTypeError('incompatible_method_reciever', |
| 366 | ['DataView.getUint32', this]); |
| 367 | } |
| 368 | return %DataViewGetUint32(this, |
| 369 | ToPositiveDataViewOffset(offset), |
| 370 | !!little_endian); |
| 371 | } |
| 372 | |
| 373 | function DataViewSetUint32(offset, value, little_endian) { |
| 374 | if (!IS_DATAVIEW(this)) { |
| 375 | throw MakeTypeError('incompatible_method_reciever', |
| 376 | ['DataView.setUint32', this]); |
| 377 | } |
| 378 | %DataViewSetUint32(this, |
| 379 | ToPositiveDataViewOffset(offset), |
| 380 | TO_NUMBER_INLINE(value), |
| 381 | !!little_endian); |
| 382 | } |
| 383 | |
| 384 | function DataViewGetFloat32(offset, little_endian) { |
| 385 | if (!IS_DATAVIEW(this)) { |
| 386 | throw MakeTypeError('incompatible_method_reciever', |
| 387 | ['DataView.getFloat32', this]); |
| 388 | } |
| 389 | return %DataViewGetFloat32(this, |
| 390 | ToPositiveDataViewOffset(offset), |
| 391 | !!little_endian); |
| 392 | } |
| 393 | |
| 394 | function DataViewSetFloat32(offset, value, little_endian) { |
| 395 | if (!IS_DATAVIEW(this)) { |
| 396 | throw MakeTypeError('incompatible_method_reciever', |
| 397 | ['DataView.setFloat32', this]); |
| 398 | } |
| 399 | %DataViewSetFloat32(this, |
| 400 | ToPositiveDataViewOffset(offset), |
| 401 | TO_NUMBER_INLINE(value), |
| 402 | !!little_endian); |
| 403 | } |
| 404 | |
| 405 | function DataViewGetFloat64(offset, little_endian) { |
| 406 | if (!IS_DATAVIEW(this)) { |
| 407 | throw MakeTypeError('incompatible_method_reciever', |
| 408 | ['DataView.getFloat64', this]); |
| 409 | } |
| 410 | offset = TO_INTEGER(offset); |
| 411 | if (offset < 0) { |
| 412 | throw MakeRangeError("invalid_data_view_accessor_offset"); |
| 413 | } |
| 414 | return %DataViewGetFloat64(this, |
| 415 | ToPositiveDataViewOffset(offset), |
| 416 | !!little_endian); |
| 417 | } |
| 418 | |
| 419 | function DataViewSetFloat64(offset, value, little_endian) { |
| 420 | if (!IS_DATAVIEW(this)) { |
| 421 | throw MakeTypeError('incompatible_method_reciever', |
| 422 | ['DataView.setFloat64', this]); |
| 423 | } |
| 424 | offset = TO_INTEGER(offset); |
| 425 | if (offset < 0) { |
| 426 | throw MakeRangeError("invalid_data_view_accessor_offset"); |
| 427 | } |
| 428 | %DataViewSetFloat64(this, |
| 429 | ToPositiveDataViewOffset(offset), |
| 430 | TO_NUMBER_INLINE(value), |
| 431 | !!little_endian); |
| 432 | } |
| 433 | |
| 434 | function SetupDataView() { |
| 435 | %CheckIsBootstrapping(); |
| 436 | |
| 437 | // Setup the DataView constructor. |
| 438 | %SetCode($DataView, DataViewConstructor); |
| 439 | %FunctionSetPrototype($DataView, new $Object); |
| 440 | |
| 441 | // Set up constructor property on the DataView prototype. |
| 442 | %SetProperty($DataView.prototype, "constructor", $DataView, DONT_ENUM); |
| 443 | |
| 444 | InstallGetter($DataView.prototype, "buffer", DataViewGetBuffer); |
| 445 | InstallGetter($DataView.prototype, "byteOffset", DataViewGetByteOffset); |
| 446 | InstallGetter($DataView.prototype, "byteLength", DataViewGetByteLength); |
| 447 | |
| 448 | InstallFunctions($DataView.prototype, DONT_ENUM, $Array( |
| 449 | "getInt8", DataViewGetInt8, |
| 450 | "setInt8", DataViewSetInt8, |
| 451 | |
| 452 | "getUint8", DataViewGetUint8, |
| 453 | "setUint8", DataViewSetUint8, |
| 454 | |
| 455 | "getInt16", DataViewGetInt16, |
| 456 | "setInt16", DataViewSetInt16, |
| 457 | |
| 458 | "getUint16", DataViewGetUint16, |
| 459 | "setUint16", DataViewSetUint16, |
| 460 | |
| 461 | "getInt32", DataViewGetInt32, |
| 462 | "setInt32", DataViewSetInt32, |
| 463 | |
| 464 | "getUint32", DataViewGetUint32, |
| 465 | "setUint32", DataViewSetUint32, |
| 466 | |
| 467 | "getFloat32", DataViewGetFloat32, |
| 468 | "setFloat32", DataViewSetFloat32, |
| 469 | |
| 470 | "getFloat64", DataViewGetFloat64, |
| 471 | "setFloat64", DataViewSetFloat64 |
| 472 | )); |
| 473 | } |
| 474 | |
| 475 | SetupDataView(); |