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Unified Diff: src/typedarray.js

Issue 1398733002: Move builtin JavaScript sources into own directory. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Also move macros.py file. Created 5 years, 2 months ago
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Index: src/typedarray.js
diff --git a/src/typedarray.js b/src/typedarray.js
deleted file mode 100644
index 48848b1513ee99a19a214470c1f1ae78843cff91..0000000000000000000000000000000000000000
--- a/src/typedarray.js
+++ /dev/null
@@ -1,508 +0,0 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-(function(global, utils) {
-
-"use strict";
-
-%CheckIsBootstrapping();
-
-// -------------------------------------------------------------------
-// Imports
-
-var GlobalArray = global.Array;
-var GlobalArrayBuffer = global.ArrayBuffer;
-var GlobalDataView = global.DataView;
-var GlobalObject = global.Object;
-var iteratorSymbol = utils.ImportNow("iterator_symbol");
-var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
-
-macro TYPED_ARRAYS(FUNCTION)
-// arrayIds below should be synchronized with Runtime_TypedArrayInitialize.
-FUNCTION(1, Uint8Array, 1)
-FUNCTION(2, Int8Array, 1)
-FUNCTION(3, Uint16Array, 2)
-FUNCTION(4, Int16Array, 2)
-FUNCTION(5, Uint32Array, 4)
-FUNCTION(6, Int32Array, 4)
-FUNCTION(7, Float32Array, 4)
-FUNCTION(8, Float64Array, 8)
-FUNCTION(9, Uint8ClampedArray, 1)
-endmacro
-
-macro DECLARE_GLOBALS(INDEX, NAME, SIZE)
-var GlobalNAME = global.NAME;
-endmacro
-
-TYPED_ARRAYS(DECLARE_GLOBALS)
-
-var InternalArray = utils.InternalArray;
-
-// --------------- Typed Arrays ---------------------
-
-macro TYPED_ARRAY_CONSTRUCTOR(ARRAY_ID, NAME, ELEMENT_SIZE)
-function NAMEConstructByArrayBuffer(obj, buffer, byteOffset, length) {
- if (!IS_UNDEFINED(byteOffset)) {
- byteOffset =
- $toPositiveInteger(byteOffset, kInvalidTypedArrayLength);
- }
- if (!IS_UNDEFINED(length)) {
- length = $toPositiveInteger(length, kInvalidTypedArrayLength);
- }
-
- var bufferByteLength = %_ArrayBufferGetByteLength(buffer);
- var offset;
- if (IS_UNDEFINED(byteOffset)) {
- offset = 0;
- } else {
- offset = byteOffset;
-
- if (offset % ELEMENT_SIZE !== 0) {
- throw MakeRangeError(kInvalidTypedArrayAlignment,
- "start offset", "NAME", ELEMENT_SIZE);
- }
- if (offset > bufferByteLength) {
- throw MakeRangeError(kInvalidTypedArrayOffset);
- }
- }
-
- var newByteLength;
- var newLength;
- if (IS_UNDEFINED(length)) {
- if (bufferByteLength % ELEMENT_SIZE !== 0) {
- throw MakeRangeError(kInvalidTypedArrayAlignment,
- "byte length", "NAME", ELEMENT_SIZE);
- }
- newByteLength = bufferByteLength - offset;
- newLength = newByteLength / ELEMENT_SIZE;
- } else {
- var newLength = length;
- newByteLength = newLength * ELEMENT_SIZE;
- }
- if ((offset + newByteLength > bufferByteLength)
- || (newLength > %_MaxSmi())) {
- throw MakeRangeError(kInvalidTypedArrayLength);
- }
- %_TypedArrayInitialize(obj, ARRAY_ID, buffer, offset, newByteLength, true);
-}
-
-function NAMEConstructByLength(obj, length) {
- var l = IS_UNDEFINED(length) ?
- 0 : $toPositiveInteger(length, kInvalidTypedArrayLength);
- if (l > %_MaxSmi()) {
- throw MakeRangeError(kInvalidTypedArrayLength);
- }
- var byteLength = l * ELEMENT_SIZE;
- if (byteLength > %_TypedArrayMaxSizeInHeap()) {
- var buffer = new GlobalArrayBuffer(byteLength);
- %_TypedArrayInitialize(obj, ARRAY_ID, buffer, 0, byteLength, true);
- } else {
- %_TypedArrayInitialize(obj, ARRAY_ID, null, 0, byteLength, true);
- }
-}
-
-function NAMEConstructByArrayLike(obj, arrayLike) {
- var length = arrayLike.length;
- var l = $toPositiveInteger(length, kInvalidTypedArrayLength);
-
- if (l > %_MaxSmi()) {
- throw MakeRangeError(kInvalidTypedArrayLength);
- }
- var initialized = false;
- var byteLength = l * ELEMENT_SIZE;
- if (byteLength <= %_TypedArrayMaxSizeInHeap()) {
- %_TypedArrayInitialize(obj, ARRAY_ID, null, 0, byteLength, false);
- } else {
- initialized =
- %TypedArrayInitializeFromArrayLike(obj, ARRAY_ID, arrayLike, l);
- }
- if (!initialized) {
- for (var i = 0; i < l; i++) {
- // It is crucial that we let any execptions from arrayLike[i]
- // propagate outside the function.
- obj[i] = arrayLike[i];
- }
- }
-}
-
-function NAMEConstructByIterable(obj, iterable, iteratorFn) {
- var list = new InternalArray();
- // Reading the Symbol.iterator property of iterable twice would be
- // observable with getters, so instead, we call the function which
- // was already looked up, and wrap it in another iterable. The
- // __proto__ of the new iterable is set to null to avoid any chance
- // of modifications to Object.prototype being observable here.
- var iterator = %_Call(iteratorFn, iterable);
- var newIterable = {
- __proto__: null
- };
- // TODO(littledan): Computed properties don't work yet in nosnap.
- // Rephrase when they do.
- newIterable[iteratorSymbol] = function() { return iterator; }
- for (var value of newIterable) {
- list.push(value);
- }
- NAMEConstructByArrayLike(obj, list);
-}
-
-function NAMEConstructor(arg1, arg2, arg3) {
- if (%_IsConstructCall()) {
- if (IS_ARRAYBUFFER(arg1) || IS_SHAREDARRAYBUFFER(arg1)) {
- NAMEConstructByArrayBuffer(this, arg1, arg2, arg3);
- } else if (IS_NUMBER(arg1) || IS_STRING(arg1) ||
- IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) {
- NAMEConstructByLength(this, arg1);
- } else {
- var iteratorFn = arg1[iteratorSymbol];
- if (IS_UNDEFINED(iteratorFn) || iteratorFn === $arrayValues) {
- NAMEConstructByArrayLike(this, arg1);
- } else {
- NAMEConstructByIterable(this, arg1, iteratorFn);
- }
- }
- } else {
- throw MakeTypeError(kConstructorNotFunction, "NAME")
- }
-}
-
-function NAME_GetBuffer() {
- if (!(%_ClassOf(this) === 'NAME')) {
- throw MakeTypeError(kIncompatibleMethodReceiver, "NAME.buffer", this);
- }
- return %TypedArrayGetBuffer(this);
-}
-
-function NAME_GetByteLength() {
- if (!(%_ClassOf(this) === 'NAME')) {
- throw MakeTypeError(kIncompatibleMethodReceiver, "NAME.byteLength", this);
- }
- return %_ArrayBufferViewGetByteLength(this);
-}
-
-function NAME_GetByteOffset() {
- if (!(%_ClassOf(this) === 'NAME')) {
- throw MakeTypeError(kIncompatibleMethodReceiver, "NAME.byteOffset", this);
- }
- return %_ArrayBufferViewGetByteOffset(this);
-}
-
-function NAME_GetLength() {
- if (!(%_ClassOf(this) === 'NAME')) {
- throw MakeTypeError(kIncompatibleMethodReceiver, "NAME.length", this);
- }
- return %_TypedArrayGetLength(this);
-}
-
-function NAMESubArray(begin, end) {
- if (!(%_ClassOf(this) === 'NAME')) {
- throw MakeTypeError(kIncompatibleMethodReceiver, "NAME.subarray", this);
- }
- var beginInt = TO_INTEGER(begin);
- if (!IS_UNDEFINED(end)) {
- var endInt = TO_INTEGER(end);
- var srcLength = %_TypedArrayGetLength(this);
- } else {
- var srcLength = %_TypedArrayGetLength(this);
- var endInt = srcLength;
- }
-
- if (beginInt < 0) {
- beginInt = MAX_SIMPLE(0, srcLength + beginInt);
- } else {
- beginInt = MIN_SIMPLE(beginInt, srcLength);
- }
-
- if (endInt < 0) {
- endInt = MAX_SIMPLE(0, srcLength + endInt);
- } else {
- endInt = MIN_SIMPLE(endInt, srcLength);
- }
-
- if (endInt < beginInt) {
- endInt = beginInt;
- }
-
- var newLength = endInt - beginInt;
- var beginByteOffset =
- %_ArrayBufferViewGetByteOffset(this) + beginInt * ELEMENT_SIZE;
- return new GlobalNAME(%TypedArrayGetBuffer(this),
- beginByteOffset, newLength);
-}
-endmacro
-
-TYPED_ARRAYS(TYPED_ARRAY_CONSTRUCTOR)
-
-
-function TypedArraySetFromArrayLike(target, source, sourceLength, offset) {
- if (offset > 0) {
- for (var i = 0; i < sourceLength; i++) {
- target[offset + i] = source[i];
- }
- }
- else {
- for (var i = 0; i < sourceLength; i++) {
- target[i] = source[i];
- }
- }
-}
-
-function TypedArraySetFromOverlappingTypedArray(target, source, offset) {
- var sourceElementSize = source.BYTES_PER_ELEMENT;
- var targetElementSize = target.BYTES_PER_ELEMENT;
- var sourceLength = source.length;
-
- // Copy left part.
- function CopyLeftPart() {
- // First un-mutated byte after the next write
- var targetPtr = target.byteOffset + (offset + 1) * targetElementSize;
- // Next read at sourcePtr. We do not care for memory changing before
- // sourcePtr - we have already copied it.
- var sourcePtr = source.byteOffset;
- for (var leftIndex = 0;
- leftIndex < sourceLength && targetPtr <= sourcePtr;
- leftIndex++) {
- target[offset + leftIndex] = source[leftIndex];
- targetPtr += targetElementSize;
- sourcePtr += sourceElementSize;
- }
- return leftIndex;
- }
- var leftIndex = CopyLeftPart();
-
- // Copy rigth part;
- function CopyRightPart() {
- // First unmutated byte before the next write
- var targetPtr =
- target.byteOffset + (offset + sourceLength - 1) * targetElementSize;
- // Next read before sourcePtr. We do not care for memory changing after
- // sourcePtr - we have already copied it.
- var sourcePtr =
- source.byteOffset + sourceLength * sourceElementSize;
- for(var rightIndex = sourceLength - 1;
- rightIndex >= leftIndex && targetPtr >= sourcePtr;
- rightIndex--) {
- target[offset + rightIndex] = source[rightIndex];
- targetPtr -= targetElementSize;
- sourcePtr -= sourceElementSize;
- }
- return rightIndex;
- }
- var rightIndex = CopyRightPart();
-
- var temp = new GlobalArray(rightIndex + 1 - leftIndex);
- for (var i = leftIndex; i <= rightIndex; i++) {
- temp[i - leftIndex] = source[i];
- }
- for (i = leftIndex; i <= rightIndex; i++) {
- target[offset + i] = temp[i - leftIndex];
- }
-}
-
-function TypedArraySet(obj, offset) {
- var intOffset = IS_UNDEFINED(offset) ? 0 : TO_INTEGER(offset);
- if (intOffset < 0) throw MakeTypeError(kTypedArraySetNegativeOffset);
-
- if (intOffset > %_MaxSmi()) {
- throw MakeRangeError(kTypedArraySetSourceTooLarge);
- }
- switch (%TypedArraySetFastCases(this, obj, intOffset)) {
- // These numbers should be synchronized with runtime.cc.
- case 0: // TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE
- return;
- case 1: // TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING
- TypedArraySetFromOverlappingTypedArray(this, obj, intOffset);
- return;
- case 2: // TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING
- TypedArraySetFromArrayLike(this, obj, obj.length, intOffset);
- return;
- case 3: // TYPED_ARRAY_SET_NON_TYPED_ARRAY
- var l = obj.length;
- if (IS_UNDEFINED(l)) {
- if (IS_NUMBER(obj)) {
- // For number as a first argument, throw TypeError
- // instead of silently ignoring the call, so that
- // the user knows (s)he did something wrong.
- // (Consistent with Firefox and Blink/WebKit)
- throw MakeTypeError(kInvalidArgument);
- }
- return;
- }
- l = TO_LENGTH(l);
- if (intOffset + l > this.length) {
- throw MakeRangeError(kTypedArraySetSourceTooLarge);
- }
- TypedArraySetFromArrayLike(this, obj, l, intOffset);
- return;
- }
-}
-
-function TypedArrayGetToStringTag() {
- if (!%_IsTypedArray(this)) return;
- var name = %_ClassOf(this);
- if (IS_UNDEFINED(name)) return;
- return name;
-}
-
-// -------------------------------------------------------------------
-
-macro SETUP_TYPED_ARRAY(ARRAY_ID, NAME, ELEMENT_SIZE)
- %SetCode(GlobalNAME, NAMEConstructor);
- %FunctionSetPrototype(GlobalNAME, new GlobalObject());
-
- %AddNamedProperty(GlobalNAME, "BYTES_PER_ELEMENT", ELEMENT_SIZE,
- READ_ONLY | DONT_ENUM | DONT_DELETE);
- %AddNamedProperty(GlobalNAME.prototype,
- "constructor", global.NAME, DONT_ENUM);
- %AddNamedProperty(GlobalNAME.prototype,
- "BYTES_PER_ELEMENT", ELEMENT_SIZE,
- READ_ONLY | DONT_ENUM | DONT_DELETE);
- utils.InstallGetter(GlobalNAME.prototype, "buffer", NAME_GetBuffer);
- utils.InstallGetter(GlobalNAME.prototype, "byteOffset", NAME_GetByteOffset,
- DONT_ENUM | DONT_DELETE);
- utils.InstallGetter(GlobalNAME.prototype, "byteLength", NAME_GetByteLength,
- DONT_ENUM | DONT_DELETE);
- utils.InstallGetter(GlobalNAME.prototype, "length", NAME_GetLength,
- DONT_ENUM | DONT_DELETE);
- utils.InstallGetter(GlobalNAME.prototype, toStringTagSymbol,
- TypedArrayGetToStringTag);
- utils.InstallFunctions(GlobalNAME.prototype, DONT_ENUM, [
- "subarray", NAMESubArray,
- "set", TypedArraySet
- ]);
-endmacro
-
-TYPED_ARRAYS(SETUP_TYPED_ARRAY)
-
-// --------------------------- DataView -----------------------------
-
-function DataViewConstructor(buffer, byteOffset, byteLength) { // length = 3
- if (%_IsConstructCall()) {
- // TODO(binji): support SharedArrayBuffers?
- if (!IS_ARRAYBUFFER(buffer)) throw MakeTypeError(kDataViewNotArrayBuffer);
- if (!IS_UNDEFINED(byteOffset)) {
- byteOffset = $toPositiveInteger(byteOffset, kInvalidDataViewOffset);
- }
- if (!IS_UNDEFINED(byteLength)) {
- byteLength = TO_INTEGER(byteLength);
- }
-
- var bufferByteLength = %_ArrayBufferGetByteLength(buffer);
-
- var offset = IS_UNDEFINED(byteOffset) ? 0 : byteOffset;
- if (offset > bufferByteLength) throw MakeRangeError(kInvalidDataViewOffset);
-
- var length = IS_UNDEFINED(byteLength)
- ? bufferByteLength - offset
- : byteLength;
- if (length < 0 || offset + length > bufferByteLength) {
- throw new MakeRangeError(kInvalidDataViewLength);
- }
- %_DataViewInitialize(this, buffer, offset, length);
- } else {
- throw MakeTypeError(kConstructorNotFunction, "DataView");
- }
-}
-
-function DataViewGetBufferJS() {
- if (!IS_DATAVIEW(this)) {
- throw MakeTypeError(kIncompatibleMethodReceiver, 'DataView.buffer', this);
- }
- return %DataViewGetBuffer(this);
-}
-
-function DataViewGetByteOffset() {
- if (!IS_DATAVIEW(this)) {
- throw MakeTypeError(kIncompatibleMethodReceiver,
- 'DataView.byteOffset', this);
- }
- return %_ArrayBufferViewGetByteOffset(this);
-}
-
-function DataViewGetByteLength() {
- if (!IS_DATAVIEW(this)) {
- throw MakeTypeError(kIncompatibleMethodReceiver,
- 'DataView.byteLength', this);
- }
- return %_ArrayBufferViewGetByteLength(this);
-}
-
-macro DATA_VIEW_TYPES(FUNCTION)
- FUNCTION(Int8)
- FUNCTION(Uint8)
- FUNCTION(Int16)
- FUNCTION(Uint16)
- FUNCTION(Int32)
- FUNCTION(Uint32)
- FUNCTION(Float32)
- FUNCTION(Float64)
-endmacro
-
-
-macro DATA_VIEW_GETTER_SETTER(TYPENAME)
-function DataViewGetTYPENAMEJS(offset, little_endian) {
- if (!IS_DATAVIEW(this)) {
- throw MakeTypeError(kIncompatibleMethodReceiver,
- 'DataView.getTYPENAME', this);
- }
- if (%_ArgumentsLength() < 1) throw MakeTypeError(kInvalidArgument);
- offset = $toPositiveInteger(offset, kInvalidDataViewAccessorOffset);
- return %DataViewGetTYPENAME(this, offset, !!little_endian);
-}
-
-function DataViewSetTYPENAMEJS(offset, value, little_endian) {
- if (!IS_DATAVIEW(this)) {
- throw MakeTypeError(kIncompatibleMethodReceiver,
- 'DataView.setTYPENAME', this);
- }
- if (%_ArgumentsLength() < 2) throw MakeTypeError(kInvalidArgument);
- offset = $toPositiveInteger(offset, kInvalidDataViewAccessorOffset);
- %DataViewSetTYPENAME(this, offset, TO_NUMBER(value), !!little_endian);
-}
-endmacro
-
-DATA_VIEW_TYPES(DATA_VIEW_GETTER_SETTER)
-
-// Setup the DataView constructor.
-%SetCode(GlobalDataView, DataViewConstructor);
-%FunctionSetPrototype(GlobalDataView, new GlobalObject);
-
-// Set up constructor property on the DataView prototype.
-%AddNamedProperty(GlobalDataView.prototype, "constructor", GlobalDataView,
- DONT_ENUM);
-%AddNamedProperty(GlobalDataView.prototype, toStringTagSymbol, "DataView",
- READ_ONLY|DONT_ENUM);
-
-utils.InstallGetter(GlobalDataView.prototype, "buffer", DataViewGetBufferJS);
-utils.InstallGetter(GlobalDataView.prototype, "byteOffset",
- DataViewGetByteOffset);
-utils.InstallGetter(GlobalDataView.prototype, "byteLength",
- DataViewGetByteLength);
-
-utils.InstallFunctions(GlobalDataView.prototype, DONT_ENUM, [
- "getInt8", DataViewGetInt8JS,
- "setInt8", DataViewSetInt8JS,
-
- "getUint8", DataViewGetUint8JS,
- "setUint8", DataViewSetUint8JS,
-
- "getInt16", DataViewGetInt16JS,
- "setInt16", DataViewSetInt16JS,
-
- "getUint16", DataViewGetUint16JS,
- "setUint16", DataViewSetUint16JS,
-
- "getInt32", DataViewGetInt32JS,
- "setInt32", DataViewSetInt32JS,
-
- "getUint32", DataViewGetUint32JS,
- "setUint32", DataViewSetUint32JS,
-
- "getFloat32", DataViewGetFloat32JS,
- "setFloat32", DataViewSetFloat32JS,
-
- "getFloat64", DataViewGetFloat64JS,
- "setFloat64", DataViewSetFloat64JS
-]);
-
-})
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