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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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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 var $arrayValues;
6
7 (function(global, utils) {
8
9 "use strict";
10
11 %CheckIsBootstrapping();
12
13 // -----------------------------------------------------------------------
14 // Imports
15
16 var arrayIterationKindSymbol =
17 utils.ImportNow("array_iteration_kind_symbol");
18 var arrayIteratorNextIndexSymbol =
19 utils.ImportNow("array_iterator_next_symbol");
20 var arrayIteratorObjectSymbol =
21 utils.ImportNow("array_iterator_object_symbol");
22 var GlobalArray = global.Array;
23 var iteratorSymbol = utils.ImportNow("iterator_symbol");
24 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
25
26 macro TYPED_ARRAYS(FUNCTION)
27 FUNCTION(Uint8Array)
28 FUNCTION(Int8Array)
29 FUNCTION(Uint16Array)
30 FUNCTION(Int16Array)
31 FUNCTION(Uint32Array)
32 FUNCTION(Int32Array)
33 FUNCTION(Float32Array)
34 FUNCTION(Float64Array)
35 FUNCTION(Uint8ClampedArray)
36 endmacro
37
38 macro COPY_FROM_GLOBAL(NAME)
39 var GlobalNAME = global.NAME;
40 endmacro
41
42 TYPED_ARRAYS(COPY_FROM_GLOBAL)
43
44 // -----------------------------------------------------------------------
45
46 function ArrayIterator() {}
47
48
49 // TODO(wingo): Update section numbers when ES6 has stabilized. The
50 // section numbers below are already out of date as of the May 2014
51 // draft.
52
53
54 // 15.4.5.1 CreateArrayIterator Abstract Operation
55 function CreateArrayIterator(array, kind) {
56 var object = TO_OBJECT(array);
57 var iterator = new ArrayIterator;
58 SET_PRIVATE(iterator, arrayIteratorObjectSymbol, object);
59 SET_PRIVATE(iterator, arrayIteratorNextIndexSymbol, 0);
60 SET_PRIVATE(iterator, arrayIterationKindSymbol, kind);
61 return iterator;
62 }
63
64
65 // 22.1.5.2.2 %ArrayIteratorPrototype%[@@iterator]
66 function ArrayIteratorIterator() {
67 return this;
68 }
69
70
71 // ES6 section 22.1.5.2.1 %ArrayIteratorPrototype%.next( )
72 function ArrayIteratorNext() {
73 var iterator = this;
74 var value = UNDEFINED;
75 var done = true;
76
77 if (!IS_SPEC_OBJECT(iterator) ||
78 !HAS_DEFINED_PRIVATE(iterator, arrayIteratorNextIndexSymbol)) {
79 throw MakeTypeError(kIncompatibleMethodReceiver,
80 'Array Iterator.prototype.next', this);
81 }
82
83 var array = GET_PRIVATE(iterator, arrayIteratorObjectSymbol);
84 if (!IS_UNDEFINED(array)) {
85 var index = GET_PRIVATE(iterator, arrayIteratorNextIndexSymbol);
86 var itemKind = GET_PRIVATE(iterator, arrayIterationKindSymbol);
87 var length = TO_UINT32(array.length);
88
89 // "sparse" is never used.
90
91 if (index >= length) {
92 SET_PRIVATE(iterator, arrayIteratorObjectSymbol, UNDEFINED);
93 } else {
94 SET_PRIVATE(iterator, arrayIteratorNextIndexSymbol, index + 1);
95
96 if (itemKind == ITERATOR_KIND_VALUES) {
97 value = array[index];
98 } else if (itemKind == ITERATOR_KIND_ENTRIES) {
99 value = [index, array[index]];
100 } else {
101 value = index;
102 }
103 done = false;
104 }
105 }
106
107 return %_CreateIterResultObject(value, done);
108 }
109
110
111 function ArrayEntries() {
112 return CreateArrayIterator(this, ITERATOR_KIND_ENTRIES);
113 }
114
115
116 function ArrayValues() {
117 return CreateArrayIterator(this, ITERATOR_KIND_VALUES);
118 }
119
120
121 function ArrayKeys() {
122 return CreateArrayIterator(this, ITERATOR_KIND_KEYS);
123 }
124
125
126 %FunctionSetPrototype(ArrayIterator, {__proto__: $iteratorPrototype});
127 %FunctionSetInstanceClassName(ArrayIterator, 'Array Iterator');
128
129 utils.InstallFunctions(ArrayIterator.prototype, DONT_ENUM, [
130 'next', ArrayIteratorNext
131 ]);
132 utils.SetFunctionName(ArrayIteratorIterator, iteratorSymbol);
133 %AddNamedProperty(ArrayIterator.prototype, iteratorSymbol,
134 ArrayIteratorIterator, DONT_ENUM);
135 %AddNamedProperty(ArrayIterator.prototype, toStringTagSymbol,
136 "Array Iterator", READ_ONLY | DONT_ENUM);
137
138 utils.InstallFunctions(GlobalArray.prototype, DONT_ENUM, [
139 // No 'values' since it breaks webcompat: http://crbug.com/409858
140 'entries', ArrayEntries,
141 'keys', ArrayKeys
142 ]);
143
144 // TODO(adam): Remove this call once 'values' is in the above
145 // InstallFunctions block, as it'll be redundant.
146 utils.SetFunctionName(ArrayValues, 'values');
147
148 %AddNamedProperty(GlobalArray.prototype, iteratorSymbol, ArrayValues,
149 DONT_ENUM);
150
151 macro EXTEND_TYPED_ARRAY(NAME)
152 %AddNamedProperty(GlobalNAME.prototype, 'entries', ArrayEntries, DONT_ENUM);
153 %AddNamedProperty(GlobalNAME.prototype, 'values', ArrayValues, DONT_ENUM);
154 %AddNamedProperty(GlobalNAME.prototype, 'keys', ArrayKeys, DONT_ENUM);
155 %AddNamedProperty(GlobalNAME.prototype, iteratorSymbol, ArrayValues,
156 DONT_ENUM);
157 endmacro
158
159 TYPED_ARRAYS(EXTEND_TYPED_ARRAY)
160
161 // -------------------------------------------------------------------
162 // Exports
163
164 $arrayValues = ArrayValues;
165
166 %InstallToContext([
167 "array_keys_iterator", ArrayKeys,
168 "array_values_iterator", ArrayValues,
169 "array_entries_iterator", ArrayEntries
170 ]);
171
172 })
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