OLD | NEW |
(Empty) | |
| 1 // Copyright 2014 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 'use strict'; |
| 6 |
| 7 // This file relies on the fact that the following declaration has been made |
| 8 // in runtime.js: |
| 9 // var $Array = global.Array; |
| 10 |
| 11 // ------------------------------------------------------------------- |
| 12 |
| 13 macro TYPED_ARRAYS(FUNCTION) |
| 14 // arrayIds below should be synchronized with Runtime_TypedArrayInitialize. |
| 15 FUNCTION(1, Uint8Array, 1) |
| 16 FUNCTION(2, Int8Array, 1) |
| 17 FUNCTION(3, Uint16Array, 2) |
| 18 FUNCTION(4, Int16Array, 2) |
| 19 FUNCTION(5, Uint32Array, 4) |
| 20 FUNCTION(6, Int32Array, 4) |
| 21 FUNCTION(7, Float32Array, 4) |
| 22 FUNCTION(8, Float64Array, 8) |
| 23 FUNCTION(9, Uint8ClampedArray, 1) |
| 24 endmacro |
| 25 |
| 26 |
| 27 macro TYPED_ARRAY_HARMONY_ADDITIONS(ARRAY_ID, NAME, ELEMENT_SIZE) |
| 28 |
| 29 // ES6 draft 08-24-14, section 22.2.3.12 |
| 30 function NAMEForEach(f /* thisArg */) { // length == 1 |
| 31 if (!%IsTypedArray(this)) { |
| 32 throw MakeTypeError('not_typed_array', []); |
| 33 } |
| 34 if (!IS_SPEC_FUNCTION(f)) { |
| 35 throw MakeTypeError('called_non_callable', [ f ]); |
| 36 } |
| 37 |
| 38 var length = %_TypedArrayGetLength(this); |
| 39 var receiver; |
| 40 |
| 41 if (%_ArgumentsLength() > 1) { |
| 42 receiver = %_Arguments(1); |
| 43 } |
| 44 |
| 45 var needs_wrapper = false; |
| 46 if (IS_NULL_OR_UNDEFINED(receiver)) { |
| 47 receiver = %GetDefaultReceiver(f) || receiver; |
| 48 } else { |
| 49 needs_wrapper = SHOULD_CREATE_WRAPPER(f, receiver); |
| 50 } |
| 51 |
| 52 var stepping = DEBUG_IS_ACTIVE && %DebugCallbackSupportsStepping(f); |
| 53 for (var i = 0; i < length; i++) { |
| 54 var element = this[i]; |
| 55 // Prepare break slots for debugger step in. |
| 56 if (stepping) %DebugPrepareStepInIfStepping(f); |
| 57 var new_receiver = needs_wrapper ? ToObject(receiver) : receiver; |
| 58 %_CallFunction(new_receiver, TO_OBJECT_INLINE(element), i, this, f); |
| 59 } |
| 60 } |
| 61 endmacro |
| 62 |
| 63 TYPED_ARRAYS(TYPED_ARRAY_HARMONY_ADDITIONS) |
| 64 |
| 65 |
| 66 function HarmonyTypedArrayExtendPrototypes() { |
| 67 macro EXTEND_TYPED_ARRAY(ARRAY_ID, NAME, ELEMENT_SIZE) |
| 68 %CheckIsBootstrapping(); |
| 69 |
| 70 // Set up non-enumerable functions on the prototype object. |
| 71 InstallFunctions(global.NAME.prototype, DONT_ENUM, $Array( |
| 72 "forEach", NAMEForEach |
| 73 )); |
| 74 endmacro |
| 75 |
| 76 TYPED_ARRAYS(EXTEND_TYPED_ARRAY) |
| 77 } |
| 78 |
| 79 HarmonyTypedArrayExtendPrototypes(); |
OLD | NEW |