Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 | (function(global, utils) { |
| 6 | |
| 7 | "use strict"; |
| 8 | |
| 9 | %CheckIsBootstrapping(); |
| 10 | |
| 11 | // ------------------------------------------------------------------- |
| 12 | // Imports |
| 13 | |
| 14 | var GlobalMap = global.Map; |
| 15 | var GlobalSet = global.Set; |
| 16 | var iteratorSymbol = utils.ImportNow("iterator_symbol"); |
| 17 | var MakeTypeError; |
| 18 | var MapIterator = utils.ImportNow("MapIterator"); |
| 19 | var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol"); |
| 20 | var SetIterator = utils.ImportNow("SetIterator"); |
| 21 | |
| 22 | utils.Import(function(from) { |
| 23 | MakeTypeError = from.MakeTypeError; |
| 24 | }); |
| 25 | |
| 26 | // ------------------------------------------------------------------- |
| 27 | |
| 28 | function SetIteratorConstructor(set, kind) { |
| 29 | %SetIteratorInitialize(this, set, kind); |
| 30 | } |
| 31 | |
| 32 | |
| 33 | function SetIteratorNextJS() { |
| 34 | if (!IS_SET_ITERATOR(this)) { |
| 35 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 36 | 'Set Iterator.prototype.next', this); |
| 37 | } |
| 38 | |
| 39 | var value_array = [UNDEFINED, UNDEFINED]; |
| 40 | var result = %_CreateIterResultObject(value_array, false); |
| 41 | switch (%SetIteratorNext(this, value_array)) { |
| 42 | case 0: |
| 43 | result.value = UNDEFINED; |
| 44 | result.done = true; |
| 45 | break; |
| 46 | case ITERATOR_KIND_VALUES: |
| 47 | result.value = value_array[0]; |
| 48 | break; |
| 49 | case ITERATOR_KIND_ENTRIES: |
| 50 | value_array[1] = value_array[0]; |
| 51 | break; |
| 52 | } |
| 53 | |
| 54 | return result; |
| 55 | } |
| 56 | |
| 57 | |
| 58 | function SetEntries() { |
| 59 | if (!IS_SET(this)) { |
| 60 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 61 | 'Set.prototype.entries', this); |
| 62 | } |
| 63 | return new SetIterator(this, ITERATOR_KIND_ENTRIES); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | function SetValues() { |
| 68 | if (!IS_SET(this)) { |
| 69 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 70 | 'Set.prototype.values', this); |
| 71 | } |
| 72 | return new SetIterator(this, ITERATOR_KIND_VALUES); |
| 73 | } |
| 74 | |
| 75 | // ------------------------------------------------------------------- |
| 76 | |
| 77 | %SetCode(SetIterator, SetIteratorConstructor); |
| 78 | %FunctionSetInstanceClassName(SetIterator, 'Set Iterator'); |
| 79 | utils.InstallFunctions(SetIterator.prototype, DONT_ENUM, [ |
| 80 | 'next', SetIteratorNextJS |
| 81 | ]); |
| 82 | |
| 83 | %AddNamedProperty(SetIterator.prototype, toStringTagSymbol, |
| 84 | "Set Iterator", READ_ONLY | DONT_ENUM); |
| 85 | |
| 86 | utils.InstallFunctions(GlobalSet.prototype, DONT_ENUM, [ |
| 87 | 'entries', SetEntries, |
| 88 | 'keys', SetValues, |
| 89 | 'values', SetValues |
| 90 | ]); |
| 91 | |
| 92 | %AddNamedProperty(GlobalSet.prototype, iteratorSymbol, SetValues, DONT_ENUM); |
| 93 | |
| 94 | // ------------------------------------------------------------------- |
| 95 | |
| 96 | function MapIteratorConstructor(map, kind) { |
| 97 | %MapIteratorInitialize(this, map, kind); |
| 98 | } |
| 99 | |
| 100 | |
| 101 | function MapIteratorNextJS() { |
| 102 | if (!IS_MAP_ITERATOR(this)) { |
| 103 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 104 | 'Map Iterator.prototype.next', this); |
| 105 | } |
| 106 | |
| 107 | var value_array = [UNDEFINED, UNDEFINED]; |
| 108 | var result = %_CreateIterResultObject(value_array, false); |
| 109 | switch (%MapIteratorNext(this, value_array)) { |
| 110 | case 0: |
| 111 | result.value = UNDEFINED; |
| 112 | result.done = true; |
| 113 | break; |
| 114 | case ITERATOR_KIND_KEYS: |
| 115 | result.value = value_array[0]; |
| 116 | break; |
| 117 | case ITERATOR_KIND_VALUES: |
| 118 | result.value = value_array[1]; |
| 119 | break; |
| 120 | // ITERATOR_KIND_ENTRIES does not need any processing. |
| 121 | } |
| 122 | |
| 123 | return result; |
| 124 | } |
| 125 | |
| 126 | |
| 127 | function MapEntries() { |
| 128 | if (!IS_MAP(this)) { |
| 129 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 130 | 'Map.prototype.entries', this); |
| 131 | } |
| 132 | return new MapIterator(this, ITERATOR_KIND_ENTRIES); |
| 133 | } |
| 134 | |
| 135 | |
| 136 | function MapKeys() { |
| 137 | if (!IS_MAP(this)) { |
| 138 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 139 | 'Map.prototype.keys', this); |
| 140 | } |
| 141 | return new MapIterator(this, ITERATOR_KIND_KEYS); |
| 142 | } |
| 143 | |
| 144 | |
| 145 | function MapValues() { |
| 146 | if (!IS_MAP(this)) { |
| 147 | throw MakeTypeError(kIncompatibleMethodReceiver, |
| 148 | 'Map.prototype.values', this); |
| 149 | } |
| 150 | return new MapIterator(this, ITERATOR_KIND_VALUES); |
| 151 | } |
| 152 | |
| 153 | // ------------------------------------------------------------------- |
| 154 | |
| 155 | %SetCode(MapIterator, MapIteratorConstructor); |
| 156 | %FunctionSetInstanceClassName(MapIterator, 'Map Iterator'); |
| 157 | utils.InstallFunctions(MapIterator.prototype, DONT_ENUM, [ |
| 158 | 'next', MapIteratorNextJS |
| 159 | ]); |
| 160 | |
| 161 | %AddNamedProperty(MapIterator.prototype, toStringTagSymbol, |
| 162 | "Map Iterator", READ_ONLY | DONT_ENUM); |
| 163 | |
| 164 | |
| 165 | utils.InstallFunctions(GlobalMap.prototype, DONT_ENUM, [ |
| 166 | 'entries', MapEntries, |
| 167 | 'keys', MapKeys, |
| 168 | 'values', MapValues |
| 169 | ]); |
| 170 | |
| 171 | %AddNamedProperty(GlobalMap.prototype, iteratorSymbol, MapEntries, DONT_ENUM); |
| 172 | |
| 173 | // ------------------------------------------------------------------- |
| 174 | // Exports |
| 175 | |
| 176 | utils.Export(function(to) { |
| 177 | to.MapEntries = MapEntries; |
| 178 | to.MapIteratorNext = MapIteratorNextJS; |
| 179 | to.SetIteratorNext = SetIteratorNextJS; |
| 180 | to.SetValues = SetValues; |
| 181 | }); |
| 182 | |
| 183 | }) |