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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 var $iteratorCreateResultObject; | 5 var $iteratorCreateResultObject; |
6 var $arrayValues; | 6 var $arrayValues; |
7 | 7 |
8 (function() { | 8 (function() { |
9 | 9 |
10 "use strict"; | 10 "use strict"; |
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40 function ArrayIterator() {} | 40 function ArrayIterator() {} |
41 | 41 |
42 | 42 |
43 // TODO(wingo): Update section numbers when ES6 has stabilized. The | 43 // TODO(wingo): Update section numbers when ES6 has stabilized. The |
44 // section numbers below are already out of date as of the May 2014 | 44 // section numbers below are already out of date as of the May 2014 |
45 // draft. | 45 // draft. |
46 | 46 |
47 | 47 |
48 // 15.4.5.1 CreateArrayIterator Abstract Operation | 48 // 15.4.5.1 CreateArrayIterator Abstract Operation |
49 function CreateArrayIterator(array, kind) { | 49 function CreateArrayIterator(array, kind) { |
50 var object = ToObject(array); | 50 var object = $toObject(array); |
51 var iterator = new ArrayIterator; | 51 var iterator = new ArrayIterator; |
52 SET_PRIVATE(iterator, arrayIteratorObjectSymbol, object); | 52 SET_PRIVATE(iterator, arrayIteratorObjectSymbol, object); |
53 SET_PRIVATE(iterator, arrayIteratorNextIndexSymbol, 0); | 53 SET_PRIVATE(iterator, arrayIteratorNextIndexSymbol, 0); |
54 SET_PRIVATE(iterator, arrayIterationKindSymbol, kind); | 54 SET_PRIVATE(iterator, arrayIterationKindSymbol, kind); |
55 return iterator; | 55 return iterator; |
56 } | 56 } |
57 | 57 |
58 | 58 |
59 // 15.19.4.3.4 CreateItrResultObject | 59 // 15.19.4.3.4 CreateItrResultObject |
60 function CreateIteratorResultObject(value, done) { | 60 function CreateIteratorResultObject(value, done) { |
61 return {value: value, done: done}; | 61 return {value: value, done: done}; |
62 } | 62 } |
63 | 63 |
64 | 64 |
65 // 22.1.5.2.2 %ArrayIteratorPrototype%[@@iterator] | 65 // 22.1.5.2.2 %ArrayIteratorPrototype%[@@iterator] |
66 function ArrayIteratorIterator() { | 66 function ArrayIteratorIterator() { |
67 return this; | 67 return this; |
68 } | 68 } |
69 | 69 |
70 | 70 |
71 // 15.4.5.2.2 ArrayIterator.prototype.next( ) | 71 // 15.4.5.2.2 ArrayIterator.prototype.next( ) |
72 function ArrayIteratorNext() { | 72 function ArrayIteratorNext() { |
73 var iterator = ToObject(this); | 73 var iterator = $toObject(this); |
74 | 74 |
75 if (!HAS_DEFINED_PRIVATE(iterator, arrayIteratorNextIndexSymbol)) { | 75 if (!HAS_DEFINED_PRIVATE(iterator, arrayIteratorNextIndexSymbol)) { |
76 throw MakeTypeError(kIncompatibleMethodReceiver, | 76 throw MakeTypeError(kIncompatibleMethodReceiver, |
77 'Array Iterator.prototype.next', this); | 77 'Array Iterator.prototype.next', this); |
78 } | 78 } |
79 | 79 |
80 var array = GET_PRIVATE(iterator, arrayIteratorObjectSymbol); | 80 var array = GET_PRIVATE(iterator, arrayIteratorObjectSymbol); |
81 if (IS_UNDEFINED(array)) { | 81 if (IS_UNDEFINED(array)) { |
82 return CreateIteratorResultObject(UNDEFINED, true); | 82 return CreateIteratorResultObject(UNDEFINED, true); |
83 } | 83 } |
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150 %AddNamedProperty(GlobalNAME.prototype, symbolIterator, ArrayValues, | 150 %AddNamedProperty(GlobalNAME.prototype, symbolIterator, ArrayValues, |
151 DONT_ENUM); | 151 DONT_ENUM); |
152 endmacro | 152 endmacro |
153 | 153 |
154 TYPED_ARRAYS(EXTEND_TYPED_ARRAY) | 154 TYPED_ARRAYS(EXTEND_TYPED_ARRAY) |
155 | 155 |
156 $iteratorCreateResultObject = CreateIteratorResultObject; | 156 $iteratorCreateResultObject = CreateIteratorResultObject; |
157 $arrayValues = ArrayValues; | 157 $arrayValues = ArrayValues; |
158 | 158 |
159 })(); | 159 })(); |
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