Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | (function(global, utils) { |
| 6 | |
| 7 | "use strict"; |
| 8 | |
| 9 | %CheckIsBootstrapping(); |
| 10 | |
| 11 | // ------------------------------------------------------------------- |
| 12 | // Imports |
| 13 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 14 | var AddIndexedProperty; |
| 15 | // array.js has to come before typedarray.js for this to work |
| 16 | var ArrayToString = utils.ImportNow("ArrayToString"); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 17 | var ArrayValues; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 18 | var GetIterator; |
| 19 | var GetMethod; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 20 | var GlobalArray = global.Array; |
| 21 | var GlobalArrayBuffer = global.ArrayBuffer; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 22 | var GlobalArrayBufferPrototype = GlobalArrayBuffer.prototype; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 23 | var GlobalDataView = global.DataView; |
| 24 | var GlobalObject = global.Object; |
| 25 | var InternalArray = utils.InternalArray; |
| 26 | var InnerArrayCopyWithin; |
| 27 | var InnerArrayEvery; |
| 28 | var InnerArrayFill; |
| 29 | var InnerArrayFilter; |
| 30 | var InnerArrayFind; |
| 31 | var InnerArrayFindIndex; |
| 32 | var InnerArrayForEach; |
| 33 | var InnerArrayIncludes; |
| 34 | var InnerArrayIndexOf; |
| 35 | var InnerArrayJoin; |
| 36 | var InnerArrayLastIndexOf; |
| 37 | var InnerArrayReduce; |
| 38 | var InnerArrayReduceRight; |
| 39 | var InnerArraySome; |
| 40 | var InnerArraySort; |
| 41 | var InnerArrayToLocaleString; |
| 42 | var InternalArray = utils.InternalArray; |
| 43 | var IsNaN; |
| 44 | var MakeRangeError; |
| 45 | var MakeTypeError; |
| 46 | var MaxSimple; |
| 47 | var MinSimple; |
| 48 | var PackedArrayReverse; |
| 49 | var SpeciesConstructor; |
| 50 | var ToPositiveInteger; |
| 51 | var iteratorSymbol = utils.ImportNow("iterator_symbol"); |
| 52 | var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol"); |
| 53 | |
| 54 | macro TYPED_ARRAYS(FUNCTION) |
| 55 | // arrayIds below should be synchronized with Runtime_TypedArrayInitialize. |
| 56 | FUNCTION(1, Uint8Array, 1) |
| 57 | FUNCTION(2, Int8Array, 1) |
| 58 | FUNCTION(3, Uint16Array, 2) |
| 59 | FUNCTION(4, Int16Array, 2) |
| 60 | FUNCTION(5, Uint32Array, 4) |
| 61 | FUNCTION(6, Int32Array, 4) |
| 62 | FUNCTION(7, Float32Array, 4) |
| 63 | FUNCTION(8, Float64Array, 8) |
| 64 | FUNCTION(9, Uint8ClampedArray, 1) |
| 65 | endmacro |
| 66 | |
| 67 | macro DECLARE_GLOBALS(INDEX, NAME, SIZE) |
| 68 | var GlobalNAME = global.NAME; |
| 69 | endmacro |
| 70 | |
| 71 | TYPED_ARRAYS(DECLARE_GLOBALS) |
| 72 | |
| 73 | utils.Import(function(from) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 74 | AddIndexedProperty = from.AddIndexedProperty; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 75 | ArrayValues = from.ArrayValues; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 76 | GetIterator = from.GetIterator; |
| 77 | GetMethod = from.GetMethod; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 78 | InnerArrayCopyWithin = from.InnerArrayCopyWithin; |
| 79 | InnerArrayEvery = from.InnerArrayEvery; |
| 80 | InnerArrayFill = from.InnerArrayFill; |
| 81 | InnerArrayFilter = from.InnerArrayFilter; |
| 82 | InnerArrayFind = from.InnerArrayFind; |
| 83 | InnerArrayFindIndex = from.InnerArrayFindIndex; |
| 84 | InnerArrayForEach = from.InnerArrayForEach; |
| 85 | InnerArrayIncludes = from.InnerArrayIncludes; |
| 86 | InnerArrayIndexOf = from.InnerArrayIndexOf; |
| 87 | InnerArrayJoin = from.InnerArrayJoin; |
| 88 | InnerArrayLastIndexOf = from.InnerArrayLastIndexOf; |
| 89 | InnerArrayReduce = from.InnerArrayReduce; |
| 90 | InnerArrayReduceRight = from.InnerArrayReduceRight; |
| 91 | InnerArraySome = from.InnerArraySome; |
| 92 | InnerArraySort = from.InnerArraySort; |
| 93 | InnerArrayToLocaleString = from.InnerArrayToLocaleString; |
| 94 | IsNaN = from.IsNaN; |
| 95 | MakeRangeError = from.MakeRangeError; |
| 96 | MakeTypeError = from.MakeTypeError; |
| 97 | MaxSimple = from.MaxSimple; |
| 98 | MinSimple = from.MinSimple; |
| 99 | PackedArrayReverse = from.PackedArrayReverse; |
| 100 | SpeciesConstructor = from.SpeciesConstructor; |
| 101 | ToPositiveInteger = from.ToPositiveInteger; |
| 102 | }); |
| 103 | |
| 104 | // --------------- Typed Arrays --------------------- |
| 105 | |
| 106 | function TypedArrayDefaultConstructor(typedArray) { |
| 107 | switch (%_ClassOf(typedArray)) { |
| 108 | macro TYPED_ARRAY_CONSTRUCTOR_CASE(ARRAY_ID, NAME, ELEMENT_SIZE) |
| 109 | case "NAME": |
| 110 | return GlobalNAME; |
| 111 | endmacro |
| 112 | TYPED_ARRAYS(TYPED_ARRAY_CONSTRUCTOR_CASE) |
| 113 | } |
| 114 | // The TypeError should not be generated since all callers should |
| 115 | // have already called ValidateTypedArray. |
| 116 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 117 | "TypedArrayDefaultConstructor", this); |
| 118 | } |
| 119 | |
| 120 | function TypedArrayCreate(constructor, arg0, arg1, arg2) { |
| 121 | if (IS_UNDEFINED(arg1)) { |
| 122 | var newTypedArray = new constructor(arg0); |
| 123 | } else { |
| 124 | var newTypedArray = new constructor(arg0, arg1, arg2); |
| 125 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 126 | if (!IS_TYPEDARRAY(newTypedArray)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 127 | // TODO(littledan): Check for being detached, here and elsewhere |
| 128 | // All callers where the first argument is a Number have no additional |
| 129 | // arguments. |
| 130 | if (IS_NUMBER(arg0) && %_TypedArrayGetLength(newTypedArray) < arg0) { |
| 131 | throw MakeTypeError(kTypedArrayTooShort); |
| 132 | } |
| 133 | return newTypedArray; |
| 134 | } |
| 135 | |
| 136 | function TypedArraySpeciesCreate(exemplar, arg0, arg1, arg2, conservative) { |
| 137 | var defaultConstructor = TypedArrayDefaultConstructor(exemplar); |
| 138 | var constructor = SpeciesConstructor(exemplar, defaultConstructor, |
| 139 | conservative); |
| 140 | return TypedArrayCreate(constructor, arg0, arg1, arg2); |
| 141 | } |
| 142 | |
| 143 | macro TYPED_ARRAY_CONSTRUCTOR(ARRAY_ID, NAME, ELEMENT_SIZE) |
| 144 | function NAMEConstructByArrayBuffer(obj, buffer, byteOffset, length) { |
| 145 | if (!IS_UNDEFINED(byteOffset)) { |
| 146 | byteOffset = ToPositiveInteger(byteOffset, kInvalidTypedArrayLength); |
| 147 | } |
| 148 | if (!IS_UNDEFINED(length)) { |
| 149 | length = ToPositiveInteger(length, kInvalidTypedArrayLength); |
| 150 | } |
| 151 | |
| 152 | var bufferByteLength = %_ArrayBufferGetByteLength(buffer); |
| 153 | var offset; |
| 154 | if (IS_UNDEFINED(byteOffset)) { |
| 155 | offset = 0; |
| 156 | } else { |
| 157 | offset = byteOffset; |
| 158 | |
| 159 | if (offset % ELEMENT_SIZE !== 0) { |
| 160 | throw MakeRangeError(kInvalidTypedArrayAlignment, |
| 161 | "start offset", "NAME", ELEMENT_SIZE); |
| 162 | } |
| 163 | if (offset > bufferByteLength) { |
| 164 | throw MakeRangeError(kInvalidTypedArrayOffset); |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | var newByteLength; |
| 169 | var newLength; |
| 170 | if (IS_UNDEFINED(length)) { |
| 171 | if (bufferByteLength % ELEMENT_SIZE !== 0) { |
| 172 | throw MakeRangeError(kInvalidTypedArrayAlignment, |
| 173 | "byte length", "NAME", ELEMENT_SIZE); |
| 174 | } |
| 175 | newByteLength = bufferByteLength - offset; |
| 176 | newLength = newByteLength / ELEMENT_SIZE; |
| 177 | } else { |
| 178 | var newLength = length; |
| 179 | newByteLength = newLength * ELEMENT_SIZE; |
| 180 | } |
| 181 | if ((offset + newByteLength > bufferByteLength) |
| 182 | || (newLength > %_MaxSmi())) { |
| 183 | throw MakeRangeError(kInvalidTypedArrayLength); |
| 184 | } |
| 185 | %_TypedArrayInitialize(obj, ARRAY_ID, buffer, offset, newByteLength, true); |
| 186 | } |
| 187 | |
| 188 | function NAMEConstructByLength(obj, length) { |
| 189 | var l = IS_UNDEFINED(length) ? |
| 190 | 0 : ToPositiveInteger(length, kInvalidTypedArrayLength); |
| 191 | if (l > %_MaxSmi()) { |
| 192 | throw MakeRangeError(kInvalidTypedArrayLength); |
| 193 | } |
| 194 | var byteLength = l * ELEMENT_SIZE; |
| 195 | if (byteLength > %_TypedArrayMaxSizeInHeap()) { |
| 196 | var buffer = new GlobalArrayBuffer(byteLength); |
| 197 | %_TypedArrayInitialize(obj, ARRAY_ID, buffer, 0, byteLength, true); |
| 198 | } else { |
| 199 | %_TypedArrayInitialize(obj, ARRAY_ID, null, 0, byteLength, true); |
| 200 | } |
| 201 | } |
| 202 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 203 | function NAMEConstructByArrayLike(obj, arrayLike, length) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 204 | var l = ToPositiveInteger(length, kInvalidTypedArrayLength); |
| 205 | |
| 206 | if (l > %_MaxSmi()) { |
| 207 | throw MakeRangeError(kInvalidTypedArrayLength); |
| 208 | } |
| 209 | var initialized = false; |
| 210 | var byteLength = l * ELEMENT_SIZE; |
| 211 | if (byteLength <= %_TypedArrayMaxSizeInHeap()) { |
| 212 | %_TypedArrayInitialize(obj, ARRAY_ID, null, 0, byteLength, false); |
| 213 | } else { |
| 214 | initialized = |
| 215 | %TypedArrayInitializeFromArrayLike(obj, ARRAY_ID, arrayLike, l); |
| 216 | } |
| 217 | if (!initialized) { |
| 218 | for (var i = 0; i < l; i++) { |
| 219 | // It is crucial that we let any execptions from arrayLike[i] |
| 220 | // propagate outside the function. |
| 221 | obj[i] = arrayLike[i]; |
| 222 | } |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | function NAMEConstructByIterable(obj, iterable, iteratorFn) { |
| 227 | var list = new InternalArray(); |
| 228 | // Reading the Symbol.iterator property of iterable twice would be |
| 229 | // observable with getters, so instead, we call the function which |
| 230 | // was already looked up, and wrap it in another iterable. The |
| 231 | // __proto__ of the new iterable is set to null to avoid any chance |
| 232 | // of modifications to Object.prototype being observable here. |
| 233 | var iterator = %_Call(iteratorFn, iterable); |
| 234 | var newIterable = { |
| 235 | __proto__: null |
| 236 | }; |
| 237 | // TODO(littledan): Computed properties don't work yet in nosnap. |
| 238 | // Rephrase when they do. |
| 239 | newIterable[iteratorSymbol] = function() { return iterator; } |
| 240 | for (var value of newIterable) { |
| 241 | list.push(value); |
| 242 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 243 | NAMEConstructByArrayLike(obj, list, list.length); |
| 244 | } |
| 245 | |
| 246 | // ES#sec-typedarray-typedarray TypedArray ( typedArray ) |
| 247 | function NAMEConstructByTypedArray(obj, typedArray) { |
| 248 | // TODO(littledan): Throw on detached typedArray |
| 249 | var srcData = %TypedArrayGetBuffer(typedArray); |
| 250 | var length = %_TypedArrayGetLength(typedArray); |
| 251 | var byteLength = %_ArrayBufferViewGetByteLength(typedArray); |
| 252 | var newByteLength = length * ELEMENT_SIZE; |
| 253 | NAMEConstructByArrayLike(obj, typedArray, length); |
| 254 | var bufferConstructor = SpeciesConstructor(srcData, GlobalArrayBuffer); |
| 255 | var prototype = bufferConstructor.prototype; |
| 256 | // TODO(littledan): Use the right prototype based on bufferConstructor's realm |
| 257 | if (IS_RECEIVER(prototype) && prototype !== GlobalArrayBufferPrototype) { |
| 258 | %InternalSetPrototype(%TypedArrayGetBuffer(obj), prototype); |
| 259 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | function NAMEConstructor(arg1, arg2, arg3) { |
| 263 | if (!IS_UNDEFINED(new.target)) { |
| 264 | if (IS_ARRAYBUFFER(arg1) || IS_SHAREDARRAYBUFFER(arg1)) { |
| 265 | NAMEConstructByArrayBuffer(this, arg1, arg2, arg3); |
| 266 | } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || |
| 267 | IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) { |
| 268 | NAMEConstructByLength(this, arg1); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 269 | } else if (IS_TYPEDARRAY(arg1)) { |
| 270 | NAMEConstructByTypedArray(this, arg1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 271 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 272 | var iteratorFn = arg1[iteratorSymbol]; |
| 273 | if (IS_UNDEFINED(iteratorFn) || iteratorFn === ArrayValues) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 274 | NAMEConstructByArrayLike(this, arg1, arg1.length); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 275 | } else { |
| 276 | NAMEConstructByIterable(this, arg1, iteratorFn); |
| 277 | } |
| 278 | } |
| 279 | } else { |
| 280 | throw MakeTypeError(kConstructorNotFunction, "NAME") |
| 281 | } |
| 282 | } |
| 283 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 284 | function NAMESubArray(begin, end) { |
| 285 | var beginInt = TO_INTEGER(begin); |
| 286 | if (!IS_UNDEFINED(end)) { |
| 287 | var endInt = TO_INTEGER(end); |
| 288 | var srcLength = %_TypedArrayGetLength(this); |
| 289 | } else { |
| 290 | var srcLength = %_TypedArrayGetLength(this); |
| 291 | var endInt = srcLength; |
| 292 | } |
| 293 | |
| 294 | if (beginInt < 0) { |
| 295 | beginInt = MaxSimple(0, srcLength + beginInt); |
| 296 | } else { |
| 297 | beginInt = MinSimple(beginInt, srcLength); |
| 298 | } |
| 299 | |
| 300 | if (endInt < 0) { |
| 301 | endInt = MaxSimple(0, srcLength + endInt); |
| 302 | } else { |
| 303 | endInt = MinSimple(endInt, srcLength); |
| 304 | } |
| 305 | |
| 306 | if (endInt < beginInt) { |
| 307 | endInt = beginInt; |
| 308 | } |
| 309 | |
| 310 | var newLength = endInt - beginInt; |
| 311 | var beginByteOffset = |
| 312 | %_ArrayBufferViewGetByteOffset(this) + beginInt * ELEMENT_SIZE; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 313 | // BUG(v8:4665): For web compatibility, subarray needs to always build an |
| 314 | // instance of the default constructor. |
| 315 | // TODO(littledan): Switch to the standard or standardize the fix |
| 316 | return new GlobalNAME(%TypedArrayGetBuffer(this), beginByteOffset, newLength); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 317 | } |
| 318 | endmacro |
| 319 | |
| 320 | TYPED_ARRAYS(TYPED_ARRAY_CONSTRUCTOR) |
| 321 | |
| 322 | function TypedArraySubArray(begin, end) { |
| 323 | switch (%_ClassOf(this)) { |
| 324 | macro TYPED_ARRAY_SUBARRAY_CASE(ARRAY_ID, NAME, ELEMENT_SIZE) |
| 325 | case "NAME": |
| 326 | return %_Call(NAMESubArray, this, begin, end); |
| 327 | endmacro |
| 328 | TYPED_ARRAYS(TYPED_ARRAY_SUBARRAY_CASE) |
| 329 | } |
| 330 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 331 | "get TypedArray.prototype.subarray", this); |
| 332 | } |
| 333 | %SetForceInlineFlag(TypedArraySubArray); |
| 334 | |
| 335 | function TypedArrayGetBuffer() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 336 | if (!IS_TYPEDARRAY(this)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 337 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 338 | "get TypedArray.prototype.buffer", this); |
| 339 | } |
| 340 | return %TypedArrayGetBuffer(this); |
| 341 | } |
| 342 | %SetForceInlineFlag(TypedArrayGetBuffer); |
| 343 | |
| 344 | function TypedArrayGetByteLength() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 345 | if (!IS_TYPEDARRAY(this)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 346 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 347 | "get TypedArray.prototype.byteLength", this); |
| 348 | } |
| 349 | return %_ArrayBufferViewGetByteLength(this); |
| 350 | } |
| 351 | %SetForceInlineFlag(TypedArrayGetByteLength); |
| 352 | |
| 353 | function TypedArrayGetByteOffset() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 354 | if (!IS_TYPEDARRAY(this)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 355 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 356 | "get TypedArray.prototype.byteOffset", this); |
| 357 | } |
| 358 | return %_ArrayBufferViewGetByteOffset(this); |
| 359 | } |
| 360 | %SetForceInlineFlag(TypedArrayGetByteOffset); |
| 361 | |
| 362 | function TypedArrayGetLength() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 363 | if (!IS_TYPEDARRAY(this)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 364 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 365 | "get TypedArray.prototype.length", this); |
| 366 | } |
| 367 | return %_TypedArrayGetLength(this); |
| 368 | } |
| 369 | %SetForceInlineFlag(TypedArrayGetLength); |
| 370 | |
| 371 | |
| 372 | |
| 373 | function TypedArraySetFromArrayLike(target, source, sourceLength, offset) { |
| 374 | if (offset > 0) { |
| 375 | for (var i = 0; i < sourceLength; i++) { |
| 376 | target[offset + i] = source[i]; |
| 377 | } |
| 378 | } |
| 379 | else { |
| 380 | for (var i = 0; i < sourceLength; i++) { |
| 381 | target[i] = source[i]; |
| 382 | } |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | function TypedArraySetFromOverlappingTypedArray(target, source, offset) { |
| 387 | var sourceElementSize = source.BYTES_PER_ELEMENT; |
| 388 | var targetElementSize = target.BYTES_PER_ELEMENT; |
| 389 | var sourceLength = source.length; |
| 390 | |
| 391 | // Copy left part. |
| 392 | function CopyLeftPart() { |
| 393 | // First un-mutated byte after the next write |
| 394 | var targetPtr = target.byteOffset + (offset + 1) * targetElementSize; |
| 395 | // Next read at sourcePtr. We do not care for memory changing before |
| 396 | // sourcePtr - we have already copied it. |
| 397 | var sourcePtr = source.byteOffset; |
| 398 | for (var leftIndex = 0; |
| 399 | leftIndex < sourceLength && targetPtr <= sourcePtr; |
| 400 | leftIndex++) { |
| 401 | target[offset + leftIndex] = source[leftIndex]; |
| 402 | targetPtr += targetElementSize; |
| 403 | sourcePtr += sourceElementSize; |
| 404 | } |
| 405 | return leftIndex; |
| 406 | } |
| 407 | var leftIndex = CopyLeftPart(); |
| 408 | |
| 409 | // Copy rigth part; |
| 410 | function CopyRightPart() { |
| 411 | // First unmutated byte before the next write |
| 412 | var targetPtr = |
| 413 | target.byteOffset + (offset + sourceLength - 1) * targetElementSize; |
| 414 | // Next read before sourcePtr. We do not care for memory changing after |
| 415 | // sourcePtr - we have already copied it. |
| 416 | var sourcePtr = |
| 417 | source.byteOffset + sourceLength * sourceElementSize; |
| 418 | for(var rightIndex = sourceLength - 1; |
| 419 | rightIndex >= leftIndex && targetPtr >= sourcePtr; |
| 420 | rightIndex--) { |
| 421 | target[offset + rightIndex] = source[rightIndex]; |
| 422 | targetPtr -= targetElementSize; |
| 423 | sourcePtr -= sourceElementSize; |
| 424 | } |
| 425 | return rightIndex; |
| 426 | } |
| 427 | var rightIndex = CopyRightPart(); |
| 428 | |
| 429 | var temp = new GlobalArray(rightIndex + 1 - leftIndex); |
| 430 | for (var i = leftIndex; i <= rightIndex; i++) { |
| 431 | temp[i - leftIndex] = source[i]; |
| 432 | } |
| 433 | for (i = leftIndex; i <= rightIndex; i++) { |
| 434 | target[offset + i] = temp[i - leftIndex]; |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | function TypedArraySet(obj, offset) { |
| 439 | var intOffset = IS_UNDEFINED(offset) ? 0 : TO_INTEGER(offset); |
| 440 | if (intOffset < 0) throw MakeTypeError(kTypedArraySetNegativeOffset); |
| 441 | |
| 442 | if (intOffset > %_MaxSmi()) { |
| 443 | throw MakeRangeError(kTypedArraySetSourceTooLarge); |
| 444 | } |
| 445 | switch (%TypedArraySetFastCases(this, obj, intOffset)) { |
| 446 | // These numbers should be synchronized with runtime.cc. |
| 447 | case 0: // TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE |
| 448 | return; |
| 449 | case 1: // TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING |
| 450 | TypedArraySetFromOverlappingTypedArray(this, obj, intOffset); |
| 451 | return; |
| 452 | case 2: // TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING |
| 453 | TypedArraySetFromArrayLike(this, obj, obj.length, intOffset); |
| 454 | return; |
| 455 | case 3: // TYPED_ARRAY_SET_NON_TYPED_ARRAY |
| 456 | var l = obj.length; |
| 457 | if (IS_UNDEFINED(l)) { |
| 458 | if (IS_NUMBER(obj)) { |
| 459 | // For number as a first argument, throw TypeError |
| 460 | // instead of silently ignoring the call, so that |
| 461 | // the user knows (s)he did something wrong. |
| 462 | // (Consistent with Firefox and Blink/WebKit) |
| 463 | throw MakeTypeError(kInvalidArgument); |
| 464 | } |
| 465 | return; |
| 466 | } |
| 467 | l = TO_LENGTH(l); |
| 468 | if (intOffset + l > this.length) { |
| 469 | throw MakeRangeError(kTypedArraySetSourceTooLarge); |
| 470 | } |
| 471 | TypedArraySetFromArrayLike(this, obj, l, intOffset); |
| 472 | return; |
| 473 | } |
| 474 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 475 | %FunctionSetLength(TypedArraySet, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 476 | |
| 477 | function TypedArrayGetToStringTag() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 478 | if (!IS_TYPEDARRAY(this)) return; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 479 | var name = %_ClassOf(this); |
| 480 | if (IS_UNDEFINED(name)) return; |
| 481 | return name; |
| 482 | } |
| 483 | |
| 484 | |
| 485 | function TypedArrayCopyWithin(target, start, end) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 486 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 487 | |
| 488 | var length = %_TypedArrayGetLength(this); |
| 489 | |
| 490 | // TODO(littledan): Replace with a memcpy for better performance |
| 491 | return InnerArrayCopyWithin(target, start, end, this, length); |
| 492 | } |
| 493 | %FunctionSetLength(TypedArrayCopyWithin, 2); |
| 494 | |
| 495 | |
| 496 | // ES6 draft 05-05-15, section 22.2.3.7 |
| 497 | function TypedArrayEvery(f, receiver) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 498 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 499 | |
| 500 | var length = %_TypedArrayGetLength(this); |
| 501 | |
| 502 | return InnerArrayEvery(f, receiver, this, length); |
| 503 | } |
| 504 | %FunctionSetLength(TypedArrayEvery, 1); |
| 505 | |
| 506 | |
| 507 | // ES6 draft 08-24-14, section 22.2.3.12 |
| 508 | function TypedArrayForEach(f, receiver) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 509 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 510 | |
| 511 | var length = %_TypedArrayGetLength(this); |
| 512 | |
| 513 | InnerArrayForEach(f, receiver, this, length); |
| 514 | } |
| 515 | %FunctionSetLength(TypedArrayForEach, 1); |
| 516 | |
| 517 | |
| 518 | // ES6 draft 04-05-14 section 22.2.3.8 |
| 519 | function TypedArrayFill(value, start, end) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 520 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 521 | |
| 522 | var length = %_TypedArrayGetLength(this); |
| 523 | |
| 524 | return InnerArrayFill(value, start, end, this, length); |
| 525 | } |
| 526 | %FunctionSetLength(TypedArrayFill, 1); |
| 527 | |
| 528 | |
| 529 | // ES6 draft 07-15-13, section 22.2.3.9 |
| 530 | function TypedArrayFilter(f, thisArg) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 531 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 532 | |
| 533 | var length = %_TypedArrayGetLength(this); |
| 534 | if (!IS_CALLABLE(f)) throw MakeTypeError(kCalledNonCallable, f); |
| 535 | var result = new InternalArray(); |
| 536 | InnerArrayFilter(f, thisArg, this, length, result); |
| 537 | var captured = result.length; |
| 538 | var output = TypedArraySpeciesCreate(this, captured); |
| 539 | for (var i = 0; i < captured; i++) { |
| 540 | output[i] = result[i]; |
| 541 | } |
| 542 | return output; |
| 543 | } |
| 544 | %FunctionSetLength(TypedArrayFilter, 1); |
| 545 | |
| 546 | |
| 547 | // ES6 draft 07-15-13, section 22.2.3.10 |
| 548 | function TypedArrayFind(predicate, thisArg) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 549 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 550 | |
| 551 | var length = %_TypedArrayGetLength(this); |
| 552 | |
| 553 | return InnerArrayFind(predicate, thisArg, this, length); |
| 554 | } |
| 555 | %FunctionSetLength(TypedArrayFind, 1); |
| 556 | |
| 557 | |
| 558 | // ES6 draft 07-15-13, section 22.2.3.11 |
| 559 | function TypedArrayFindIndex(predicate, thisArg) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 560 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 561 | |
| 562 | var length = %_TypedArrayGetLength(this); |
| 563 | |
| 564 | return InnerArrayFindIndex(predicate, thisArg, this, length); |
| 565 | } |
| 566 | %FunctionSetLength(TypedArrayFindIndex, 1); |
| 567 | |
| 568 | |
| 569 | // ES6 draft 05-18-15, section 22.2.3.21 |
| 570 | function TypedArrayReverse() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 571 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 572 | |
| 573 | var length = %_TypedArrayGetLength(this); |
| 574 | |
| 575 | return PackedArrayReverse(this, length); |
| 576 | } |
| 577 | |
| 578 | |
| 579 | function TypedArrayComparefn(x, y) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 580 | if (x === 0 && x === y) { |
| 581 | x = 1 / x; |
| 582 | y = 1 / y; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 583 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 584 | if (x < y) { |
| 585 | return -1; |
| 586 | } else if (x > y) { |
| 587 | return 1; |
| 588 | } else if (IsNaN(x) && IsNaN(y)) { |
| 589 | return IsNaN(y) ? 0 : 1; |
| 590 | } else if (IsNaN(x)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 591 | return 1; |
| 592 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 593 | return 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | |
| 597 | // ES6 draft 05-18-15, section 22.2.3.25 |
| 598 | function TypedArraySort(comparefn) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 599 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 600 | |
| 601 | var length = %_TypedArrayGetLength(this); |
| 602 | |
| 603 | if (IS_UNDEFINED(comparefn)) { |
| 604 | comparefn = TypedArrayComparefn; |
| 605 | } |
| 606 | |
| 607 | return InnerArraySort(this, length, comparefn); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | // ES6 section 22.2.3.13 |
| 612 | function TypedArrayIndexOf(element, index) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 613 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 614 | |
| 615 | var length = %_TypedArrayGetLength(this); |
| 616 | return InnerArrayIndexOf(this, element, index, length); |
| 617 | } |
| 618 | %FunctionSetLength(TypedArrayIndexOf, 1); |
| 619 | |
| 620 | |
| 621 | // ES6 section 22.2.3.16 |
| 622 | function TypedArrayLastIndexOf(element, index) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 623 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 624 | |
| 625 | var length = %_TypedArrayGetLength(this); |
| 626 | |
| 627 | return InnerArrayLastIndexOf(this, element, index, length, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 628 | arguments.length); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 629 | } |
| 630 | %FunctionSetLength(TypedArrayLastIndexOf, 1); |
| 631 | |
| 632 | |
| 633 | // ES6 draft 07-15-13, section 22.2.3.18 |
| 634 | function TypedArrayMap(f, thisArg) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 635 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 636 | |
| 637 | var length = %_TypedArrayGetLength(this); |
| 638 | var result = TypedArraySpeciesCreate(this, length); |
| 639 | if (!IS_CALLABLE(f)) throw MakeTypeError(kCalledNonCallable, f); |
| 640 | for (var i = 0; i < length; i++) { |
| 641 | var element = this[i]; |
| 642 | result[i] = %_Call(f, thisArg, element, i, this); |
| 643 | } |
| 644 | return result; |
| 645 | } |
| 646 | %FunctionSetLength(TypedArrayMap, 1); |
| 647 | |
| 648 | |
| 649 | // ES6 draft 05-05-15, section 22.2.3.24 |
| 650 | function TypedArraySome(f, receiver) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 651 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 652 | |
| 653 | var length = %_TypedArrayGetLength(this); |
| 654 | |
| 655 | return InnerArraySome(f, receiver, this, length); |
| 656 | } |
| 657 | %FunctionSetLength(TypedArraySome, 1); |
| 658 | |
| 659 | |
| 660 | // ES6 section 22.2.3.27 |
| 661 | function TypedArrayToLocaleString() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 662 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 663 | |
| 664 | var length = %_TypedArrayGetLength(this); |
| 665 | |
| 666 | return InnerArrayToLocaleString(this, length); |
| 667 | } |
| 668 | |
| 669 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 670 | // ES6 section 22.2.3.14 |
| 671 | function TypedArrayJoin(separator) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 672 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 673 | |
| 674 | var length = %_TypedArrayGetLength(this); |
| 675 | |
| 676 | return InnerArrayJoin(separator, this, length); |
| 677 | } |
| 678 | |
| 679 | |
| 680 | // ES6 draft 07-15-13, section 22.2.3.19 |
| 681 | function TypedArrayReduce(callback, current) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 682 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 683 | |
| 684 | var length = %_TypedArrayGetLength(this); |
| 685 | return InnerArrayReduce(callback, current, this, length, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 686 | arguments.length); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 687 | } |
| 688 | %FunctionSetLength(TypedArrayReduce, 1); |
| 689 | |
| 690 | |
| 691 | // ES6 draft 07-15-13, section 22.2.3.19 |
| 692 | function TypedArrayReduceRight(callback, current) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 693 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 694 | |
| 695 | var length = %_TypedArrayGetLength(this); |
| 696 | return InnerArrayReduceRight(callback, current, this, length, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 697 | arguments.length); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 698 | } |
| 699 | %FunctionSetLength(TypedArrayReduceRight, 1); |
| 700 | |
| 701 | |
| 702 | function TypedArraySlice(start, end) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 703 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 704 | var len = %_TypedArrayGetLength(this); |
| 705 | |
| 706 | var relativeStart = TO_INTEGER(start); |
| 707 | |
| 708 | var k; |
| 709 | if (relativeStart < 0) { |
| 710 | k = MaxSimple(len + relativeStart, 0); |
| 711 | } else { |
| 712 | k = MinSimple(relativeStart, len); |
| 713 | } |
| 714 | |
| 715 | var relativeEnd; |
| 716 | if (IS_UNDEFINED(end)) { |
| 717 | relativeEnd = len; |
| 718 | } else { |
| 719 | relativeEnd = TO_INTEGER(end); |
| 720 | } |
| 721 | |
| 722 | var final; |
| 723 | if (relativeEnd < 0) { |
| 724 | final = MaxSimple(len + relativeEnd, 0); |
| 725 | } else { |
| 726 | final = MinSimple(relativeEnd, len); |
| 727 | } |
| 728 | |
| 729 | var count = MaxSimple(final - k, 0); |
| 730 | var array = TypedArraySpeciesCreate(this, count); |
| 731 | // The code below is the 'then' branch; the 'else' branch species |
| 732 | // a memcpy. Because V8 doesn't canonicalize NaN, the difference is |
| 733 | // unobservable. |
| 734 | var n = 0; |
| 735 | while (k < final) { |
| 736 | var kValue = this[k]; |
| 737 | array[n] = kValue; |
| 738 | k++; |
| 739 | n++; |
| 740 | } |
| 741 | return array; |
| 742 | } |
| 743 | |
| 744 | |
| 745 | // ES2016 draft, section 22.2.3.14 |
| 746 | function TypedArrayIncludes(searchElement, fromIndex) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 747 | if (!IS_TYPEDARRAY(this)) throw MakeTypeError(kNotTypedArray); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 748 | |
| 749 | var length = %_TypedArrayGetLength(this); |
| 750 | |
| 751 | return InnerArrayIncludes(searchElement, fromIndex, this, length); |
| 752 | } |
| 753 | %FunctionSetLength(TypedArrayIncludes, 1); |
| 754 | |
| 755 | |
| 756 | // ES6 draft 08-24-14, section 22.2.2.2 |
| 757 | function TypedArrayOf() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 758 | var length = arguments.length; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 759 | var array = TypedArrayCreate(this, length); |
| 760 | for (var i = 0; i < length; i++) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 761 | array[i] = arguments[i]; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 762 | } |
| 763 | return array; |
| 764 | } |
| 765 | |
| 766 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 767 | // ES#sec-iterabletoarraylike Runtime Semantics: IterableToArrayLike( items ) |
| 768 | function IterableToArrayLike(items) { |
| 769 | var iterable = GetMethod(items, iteratorSymbol); |
| 770 | if (!IS_UNDEFINED(iterable)) { |
| 771 | var internal_array = new InternalArray(); |
| 772 | var i = 0; |
| 773 | for (var value of |
| 774 | { [iteratorSymbol]() { return GetIterator(items, iterable) } }) { |
| 775 | internal_array[i] = value; |
| 776 | i++; |
| 777 | } |
| 778 | var array = []; |
| 779 | %MoveArrayContents(internal_array, array); |
| 780 | return array; |
| 781 | } |
| 782 | return TO_OBJECT(items); |
| 783 | } |
| 784 | |
| 785 | |
| 786 | // ES#sec-%typedarray%.from |
| 787 | // %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] ) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 788 | function TypedArrayFrom(source, mapfn, thisArg) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 789 | if (!%IsConstructor(this)) throw MakeTypeError(kNotConstructor, this); |
| 790 | var mapping; |
| 791 | if (!IS_UNDEFINED(mapfn)) { |
| 792 | if (!IS_CALLABLE(mapfn)) throw MakeTypeError(kCalledNonCallable, this); |
| 793 | mapping = true; |
| 794 | } else { |
| 795 | mapping = false; |
| 796 | } |
| 797 | var arrayLike = IterableToArrayLike(source); |
| 798 | var length = TO_LENGTH(arrayLike.length); |
| 799 | var targetObject = TypedArrayCreate(this, length); |
| 800 | var value, mappedValue; |
| 801 | for (var i = 0; i < length; i++) { |
| 802 | value = arrayLike[i]; |
| 803 | if (mapping) { |
| 804 | mappedValue = %_Call(mapfn, thisArg, value, i); |
| 805 | } else { |
| 806 | mappedValue = value; |
| 807 | } |
| 808 | targetObject[i] = mappedValue; |
| 809 | } |
| 810 | return targetObject; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 811 | } |
| 812 | %FunctionSetLength(TypedArrayFrom, 1); |
| 813 | |
| 814 | function TypedArray() { |
| 815 | if (IS_UNDEFINED(new.target)) { |
| 816 | throw MakeTypeError(kConstructorNonCallable, "TypedArray"); |
| 817 | } |
| 818 | if (new.target === TypedArray) { |
| 819 | throw MakeTypeError(kConstructAbstractClass, "TypedArray"); |
| 820 | } |
| 821 | } |
| 822 | |
| 823 | // ------------------------------------------------------------------- |
| 824 | |
| 825 | %FunctionSetPrototype(TypedArray, new GlobalObject()); |
| 826 | %AddNamedProperty(TypedArray.prototype, |
| 827 | "constructor", TypedArray, DONT_ENUM); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 828 | utils.InstallFunctions(TypedArray, DONT_ENUM, [ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 829 | "from", TypedArrayFrom, |
| 830 | "of", TypedArrayOf |
| 831 | ]); |
| 832 | utils.InstallGetter(TypedArray.prototype, "buffer", TypedArrayGetBuffer); |
| 833 | utils.InstallGetter(TypedArray.prototype, "byteOffset", TypedArrayGetByteOffset, |
| 834 | DONT_ENUM | DONT_DELETE); |
| 835 | utils.InstallGetter(TypedArray.prototype, "byteLength", |
| 836 | TypedArrayGetByteLength, DONT_ENUM | DONT_DELETE); |
| 837 | utils.InstallGetter(TypedArray.prototype, "length", TypedArrayGetLength, |
| 838 | DONT_ENUM | DONT_DELETE); |
| 839 | utils.InstallGetter(TypedArray.prototype, toStringTagSymbol, |
| 840 | TypedArrayGetToStringTag); |
| 841 | utils.InstallFunctions(TypedArray.prototype, DONT_ENUM, [ |
| 842 | "subarray", TypedArraySubArray, |
| 843 | "set", TypedArraySet, |
| 844 | "copyWithin", TypedArrayCopyWithin, |
| 845 | "every", TypedArrayEvery, |
| 846 | "fill", TypedArrayFill, |
| 847 | "filter", TypedArrayFilter, |
| 848 | "find", TypedArrayFind, |
| 849 | "findIndex", TypedArrayFindIndex, |
| 850 | "includes", TypedArrayIncludes, |
| 851 | "indexOf", TypedArrayIndexOf, |
| 852 | "join", TypedArrayJoin, |
| 853 | "lastIndexOf", TypedArrayLastIndexOf, |
| 854 | "forEach", TypedArrayForEach, |
| 855 | "map", TypedArrayMap, |
| 856 | "reduce", TypedArrayReduce, |
| 857 | "reduceRight", TypedArrayReduceRight, |
| 858 | "reverse", TypedArrayReverse, |
| 859 | "slice", TypedArraySlice, |
| 860 | "some", TypedArraySome, |
| 861 | "sort", TypedArraySort, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 862 | "toLocaleString", TypedArrayToLocaleString |
| 863 | ]); |
| 864 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 865 | %AddNamedProperty(TypedArray.prototype, "toString", ArrayToString, |
| 866 | DONT_ENUM); |
| 867 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 868 | |
| 869 | macro SETUP_TYPED_ARRAY(ARRAY_ID, NAME, ELEMENT_SIZE) |
| 870 | %SetCode(GlobalNAME, NAMEConstructor); |
| 871 | %FunctionSetPrototype(GlobalNAME, new GlobalObject()); |
| 872 | %InternalSetPrototype(GlobalNAME, TypedArray); |
| 873 | %InternalSetPrototype(GlobalNAME.prototype, TypedArray.prototype); |
| 874 | |
| 875 | %AddNamedProperty(GlobalNAME, "BYTES_PER_ELEMENT", ELEMENT_SIZE, |
| 876 | READ_ONLY | DONT_ENUM | DONT_DELETE); |
| 877 | |
| 878 | %AddNamedProperty(GlobalNAME.prototype, |
| 879 | "constructor", global.NAME, DONT_ENUM); |
| 880 | %AddNamedProperty(GlobalNAME.prototype, |
| 881 | "BYTES_PER_ELEMENT", ELEMENT_SIZE, |
| 882 | READ_ONLY | DONT_ENUM | DONT_DELETE); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 883 | endmacro |
| 884 | |
| 885 | TYPED_ARRAYS(SETUP_TYPED_ARRAY) |
| 886 | |
| 887 | // --------------------------- DataView ----------------------------- |
| 888 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 889 | function DataViewGetBufferJS() { |
| 890 | if (!IS_DATAVIEW(this)) { |
| 891 | throw MakeTypeError(kIncompatibleMethodReceiver, 'DataView.buffer', this); |
| 892 | } |
| 893 | return %DataViewGetBuffer(this); |
| 894 | } |
| 895 | |
| 896 | function DataViewGetByteOffset() { |
| 897 | if (!IS_DATAVIEW(this)) { |
| 898 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 899 | 'DataView.byteOffset', this); |
| 900 | } |
| 901 | return %_ArrayBufferViewGetByteOffset(this); |
| 902 | } |
| 903 | |
| 904 | function DataViewGetByteLength() { |
| 905 | if (!IS_DATAVIEW(this)) { |
| 906 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 907 | 'DataView.byteLength', this); |
| 908 | } |
| 909 | return %_ArrayBufferViewGetByteLength(this); |
| 910 | } |
| 911 | |
| 912 | macro DATA_VIEW_TYPES(FUNCTION) |
| 913 | FUNCTION(Int8) |
| 914 | FUNCTION(Uint8) |
| 915 | FUNCTION(Int16) |
| 916 | FUNCTION(Uint16) |
| 917 | FUNCTION(Int32) |
| 918 | FUNCTION(Uint32) |
| 919 | FUNCTION(Float32) |
| 920 | FUNCTION(Float64) |
| 921 | endmacro |
| 922 | |
| 923 | |
| 924 | macro DATA_VIEW_GETTER_SETTER(TYPENAME) |
| 925 | function DataViewGetTYPENAMEJS(offset, little_endian) { |
| 926 | if (!IS_DATAVIEW(this)) { |
| 927 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 928 | 'DataView.getTYPENAME', this); |
| 929 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 930 | if (arguments.length < 1) throw MakeTypeError(kInvalidArgument); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 931 | offset = ToPositiveInteger(offset, kInvalidDataViewAccessorOffset); |
| 932 | return %DataViewGetTYPENAME(this, offset, !!little_endian); |
| 933 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 934 | %FunctionSetLength(DataViewGetTYPENAMEJS, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 935 | |
| 936 | function DataViewSetTYPENAMEJS(offset, value, little_endian) { |
| 937 | if (!IS_DATAVIEW(this)) { |
| 938 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 939 | 'DataView.setTYPENAME', this); |
| 940 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 941 | if (arguments.length < 2) throw MakeTypeError(kInvalidArgument); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 942 | offset = ToPositiveInteger(offset, kInvalidDataViewAccessorOffset); |
| 943 | %DataViewSetTYPENAME(this, offset, TO_NUMBER(value), !!little_endian); |
| 944 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 945 | %FunctionSetLength(DataViewSetTYPENAMEJS, 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 946 | endmacro |
| 947 | |
| 948 | DATA_VIEW_TYPES(DATA_VIEW_GETTER_SETTER) |
| 949 | |
| 950 | // Setup the DataView constructor. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 951 | %FunctionSetPrototype(GlobalDataView, new GlobalObject); |
| 952 | |
| 953 | // Set up constructor property on the DataView prototype. |
| 954 | %AddNamedProperty(GlobalDataView.prototype, "constructor", GlobalDataView, |
| 955 | DONT_ENUM); |
| 956 | %AddNamedProperty(GlobalDataView.prototype, toStringTagSymbol, "DataView", |
| 957 | READ_ONLY|DONT_ENUM); |
| 958 | |
| 959 | utils.InstallGetter(GlobalDataView.prototype, "buffer", DataViewGetBufferJS); |
| 960 | utils.InstallGetter(GlobalDataView.prototype, "byteOffset", |
| 961 | DataViewGetByteOffset); |
| 962 | utils.InstallGetter(GlobalDataView.prototype, "byteLength", |
| 963 | DataViewGetByteLength); |
| 964 | |
| 965 | utils.InstallFunctions(GlobalDataView.prototype, DONT_ENUM, [ |
| 966 | "getInt8", DataViewGetInt8JS, |
| 967 | "setInt8", DataViewSetInt8JS, |
| 968 | |
| 969 | "getUint8", DataViewGetUint8JS, |
| 970 | "setUint8", DataViewSetUint8JS, |
| 971 | |
| 972 | "getInt16", DataViewGetInt16JS, |
| 973 | "setInt16", DataViewSetInt16JS, |
| 974 | |
| 975 | "getUint16", DataViewGetUint16JS, |
| 976 | "setUint16", DataViewSetUint16JS, |
| 977 | |
| 978 | "getInt32", DataViewGetInt32JS, |
| 979 | "setInt32", DataViewSetInt32JS, |
| 980 | |
| 981 | "getUint32", DataViewGetUint32JS, |
| 982 | "setUint32", DataViewSetUint32JS, |
| 983 | |
| 984 | "getFloat32", DataViewGetFloat32JS, |
| 985 | "setFloat32", DataViewSetFloat32JS, |
| 986 | |
| 987 | "getFloat64", DataViewGetFloat64JS, |
| 988 | "setFloat64", DataViewSetFloat64JS |
| 989 | ]); |
| 990 | |
| 991 | }) |