OLD | NEW |
1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 18 matching lines...) Expand all Loading... |
29 | 29 |
30 // This file relies on the fact that the following declaration has been made | 30 // This file relies on the fact that the following declaration has been made |
31 // in runtime.js: | 31 // in runtime.js: |
32 // var $Array = global.Array; | 32 // var $Array = global.Array; |
33 | 33 |
34 var ARRAY_ITERATOR_KIND_KEYS = 1; | 34 var ARRAY_ITERATOR_KIND_KEYS = 1; |
35 var ARRAY_ITERATOR_KIND_VALUES = 2; | 35 var ARRAY_ITERATOR_KIND_VALUES = 2; |
36 var ARRAY_ITERATOR_KIND_ENTRIES = 3; | 36 var ARRAY_ITERATOR_KIND_ENTRIES = 3; |
37 // The spec draft also has "sparse" but it is never used. | 37 // The spec draft also has "sparse" but it is never used. |
38 | 38 |
39 var iteratorObjectSymbol = NEW_PRIVATE("iterator_object"); | 39 var arrayIteratorObjectSymbol = GLOBAL_PRIVATE("ArrayIterator#object"); |
40 var arrayIteratorNextIndexSymbol = NEW_PRIVATE("iterator_next"); | 40 var arrayIteratorNextIndexSymbol = GLOBAL_PRIVATE("ArrayIterator#next"); |
41 var arrayIterationKindSymbol = NEW_PRIVATE("iterator_kind"); | 41 var arrayIterationKindSymbol = GLOBAL_PRIVATE("ArrayIterator#kind"); |
42 | 42 |
43 function ArrayIterator() {} | 43 function ArrayIterator() {} |
44 | 44 |
45 // 15.4.5.1 CreateArrayIterator Abstract Operation | 45 // 15.4.5.1 CreateArrayIterator Abstract Operation |
46 function CreateArrayIterator(array, kind) { | 46 function CreateArrayIterator(array, kind) { |
47 var object = ToObject(array); | 47 var object = ToObject(array); |
48 var iterator = new ArrayIterator; | 48 var iterator = new ArrayIterator; |
49 SET_PRIVATE(iterator, iteratorObjectSymbol, object); | 49 SET_PRIVATE(iterator, arrayIteratorObjectSymbol, object); |
50 SET_PRIVATE(iterator, arrayIteratorNextIndexSymbol, 0); | 50 SET_PRIVATE(iterator, arrayIteratorNextIndexSymbol, 0); |
51 SET_PRIVATE(iterator, arrayIterationKindSymbol, kind); | 51 SET_PRIVATE(iterator, arrayIterationKindSymbol, kind); |
52 return iterator; | 52 return iterator; |
53 } | 53 } |
54 | 54 |
55 // 15.19.4.3.4 CreateItrResultObject | 55 // 15.19.4.3.4 CreateItrResultObject |
56 function CreateIteratorResultObject(value, done) { | 56 function CreateIteratorResultObject(value, done) { |
57 return {value: value, done: done}; | 57 return {value: value, done: done}; |
58 } | 58 } |
59 | 59 |
60 // 15.4.5.2.2 ArrayIterator.prototype.next( ) | 60 // 15.4.5.2.2 ArrayIterator.prototype.next( ) |
61 function ArrayIteratorNext() { | 61 function ArrayIteratorNext() { |
62 var iterator = ToObject(this); | 62 var iterator = ToObject(this); |
63 var array = GET_PRIVATE(iterator, iteratorObjectSymbol); | 63 var array = GET_PRIVATE(iterator, arrayIteratorObjectSymbol); |
64 if (!array) { | 64 if (!array) { |
65 throw MakeTypeError('incompatible_method_receiver', | 65 throw MakeTypeError('incompatible_method_receiver', |
66 ['Array Iterator.prototype.next']); | 66 ['Array Iterator.prototype.next']); |
67 } | 67 } |
68 | 68 |
69 var index = GET_PRIVATE(iterator, arrayIteratorNextIndexSymbol); | 69 var index = GET_PRIVATE(iterator, arrayIteratorNextIndexSymbol); |
70 var itemKind = GET_PRIVATE(iterator, arrayIterationKindSymbol); | 70 var itemKind = GET_PRIVATE(iterator, arrayIterationKindSymbol); |
71 var length = TO_UINT32(array.length); | 71 var length = TO_UINT32(array.length); |
72 | 72 |
73 // "sparse" is never used. | 73 // "sparse" is never used. |
(...skipping 43 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
117 %CheckIsBootstrapping(); | 117 %CheckIsBootstrapping(); |
118 | 118 |
119 InstallFunctions($Array.prototype, DONT_ENUM, $Array( | 119 InstallFunctions($Array.prototype, DONT_ENUM, $Array( |
120 'entries', ArrayEntries, | 120 'entries', ArrayEntries, |
121 'values', ArrayValues, | 121 'values', ArrayValues, |
122 'keys', ArrayKeys | 122 'keys', ArrayKeys |
123 )); | 123 )); |
124 } | 124 } |
125 | 125 |
126 ExtendArrayPrototype(); | 126 ExtendArrayPrototype(); |
OLD | NEW |