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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 // 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 |
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38 assertTrue(object.hasOwnProperty(name)); | 38 assertTrue(object.hasOwnProperty(name)); |
39 var desc = Object.getOwnPropertyDescriptor(object, name); | 39 var desc = Object.getOwnPropertyDescriptor(object, name); |
40 assertEquals(desc.writable, !(attrs & READ_ONLY)); | 40 assertEquals(desc.writable, !(attrs & READ_ONLY)); |
41 assertEquals(desc.enumerable, !(attrs & DONT_ENUM)); | 41 assertEquals(desc.enumerable, !(attrs & DONT_ENUM)); |
42 assertEquals(desc.configurable, !(attrs & DONT_DELETE)); | 42 assertEquals(desc.configurable, !(attrs & DONT_DELETE)); |
43 } | 43 } |
44 | 44 |
45 | 45 |
46 function TestArrayPrototype() { | 46 function TestArrayPrototype() { |
47 assertHasOwnProperty(Array.prototype, 'entries', DONT_ENUM); | 47 assertHasOwnProperty(Array.prototype, 'entries', DONT_ENUM); |
48 assertHasOwnProperty(Array.prototype, 'values', DONT_ENUM); | |
49 assertHasOwnProperty(Array.prototype, 'keys', DONT_ENUM); | 48 assertHasOwnProperty(Array.prototype, 'keys', DONT_ENUM); |
50 assertHasOwnProperty(Array.prototype, Symbol.iterator, DONT_ENUM); | 49 assertHasOwnProperty(Array.prototype, Symbol.iterator, DONT_ENUM); |
51 | |
52 assertEquals(Array.prototype.values, Array.prototype[Symbol.iterator]); | |
53 } | 50 } |
54 TestArrayPrototype(); | 51 TestArrayPrototype(); |
55 | 52 |
56 | 53 |
57 function assertIteratorResult(value, done, result) { | 54 function assertIteratorResult(value, done, result) { |
58 assertEquals({value: value, done: done}, result); | 55 assertEquals({value: value, done: done}, result); |
59 } | 56 } |
60 | 57 |
61 | 58 |
62 function TestValues() { | 59 function TestValues() { |
63 var array = ['a', 'b', 'c']; | 60 var array = ['a', 'b', 'c']; |
64 var iterator = array.values(); | 61 var iterator = array[Symbol.iterator](); |
65 assertIteratorResult('a', false, iterator.next()); | 62 assertIteratorResult('a', false, iterator.next()); |
66 assertIteratorResult('b', false, iterator.next()); | 63 assertIteratorResult('b', false, iterator.next()); |
67 assertIteratorResult('c', false, iterator.next()); | 64 assertIteratorResult('c', false, iterator.next()); |
68 assertIteratorResult(void 0, true, iterator.next()); | 65 assertIteratorResult(void 0, true, iterator.next()); |
69 | 66 |
70 array.push('d'); | 67 array.push('d'); |
71 assertIteratorResult(void 0, true, iterator.next()); | 68 assertIteratorResult(void 0, true, iterator.next()); |
72 } | 69 } |
73 TestValues(); | 70 TestValues(); |
74 | 71 |
75 | 72 |
76 function TestValuesMutate() { | 73 function TestValuesMutate() { |
77 var array = ['a', 'b', 'c']; | 74 var array = ['a', 'b', 'c']; |
78 var iterator = array.values(); | 75 var iterator = array[Symbol.iterator](); |
79 assertIteratorResult('a', false, iterator.next()); | 76 assertIteratorResult('a', false, iterator.next()); |
80 assertIteratorResult('b', false, iterator.next()); | 77 assertIteratorResult('b', false, iterator.next()); |
81 assertIteratorResult('c', false, iterator.next()); | 78 assertIteratorResult('c', false, iterator.next()); |
82 array.push('d'); | 79 array.push('d'); |
83 assertIteratorResult('d', false, iterator.next()); | 80 assertIteratorResult('d', false, iterator.next()); |
84 assertIteratorResult(void 0, true, iterator.next()); | 81 assertIteratorResult(void 0, true, iterator.next()); |
85 } | 82 } |
86 TestValuesMutate(); | 83 TestValuesMutate(); |
87 | 84 |
88 | 85 |
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135 assertIteratorResult([2, 'c'], false, iterator.next()); | 132 assertIteratorResult([2, 'c'], false, iterator.next()); |
136 array.push('d'); | 133 array.push('d'); |
137 assertIteratorResult([3, 'd'], false, iterator.next()); | 134 assertIteratorResult([3, 'd'], false, iterator.next()); |
138 assertIteratorResult(void 0, true, iterator.next()); | 135 assertIteratorResult(void 0, true, iterator.next()); |
139 } | 136 } |
140 TestEntriesMutate(); | 137 TestEntriesMutate(); |
141 | 138 |
142 | 139 |
143 function TestArrayIteratorPrototype() { | 140 function TestArrayIteratorPrototype() { |
144 var array = []; | 141 var array = []; |
145 var iterator = array.values(); | 142 var iterator = array.keys(); |
146 | 143 |
147 var ArrayIteratorPrototype = iterator.__proto__; | 144 var ArrayIteratorPrototype = iterator.__proto__; |
148 | 145 |
149 assertEquals(ArrayIteratorPrototype, array.values().__proto__); | 146 assertEquals(ArrayIteratorPrototype, array[Symbol.iterator]().__proto__); |
150 assertEquals(ArrayIteratorPrototype, array.keys().__proto__); | 147 assertEquals(ArrayIteratorPrototype, array.keys().__proto__); |
151 assertEquals(ArrayIteratorPrototype, array.entries().__proto__); | 148 assertEquals(ArrayIteratorPrototype, array.entries().__proto__); |
152 | 149 |
153 assertEquals(Object.prototype, ArrayIteratorPrototype.__proto__); | 150 assertEquals(Object.prototype, ArrayIteratorPrototype.__proto__); |
154 | 151 |
155 assertEquals('Array Iterator', %_ClassOf(array.values())); | 152 assertEquals('Array Iterator', %_ClassOf(array[Symbol.iterator]())); |
156 assertEquals('Array Iterator', %_ClassOf(array.keys())); | 153 assertEquals('Array Iterator', %_ClassOf(array.keys())); |
157 assertEquals('Array Iterator', %_ClassOf(array.entries())); | 154 assertEquals('Array Iterator', %_ClassOf(array.entries())); |
158 | 155 |
159 assertFalse(ArrayIteratorPrototype.hasOwnProperty('constructor')); | 156 assertFalse(ArrayIteratorPrototype.hasOwnProperty('constructor')); |
160 assertArrayEquals(['next'], | 157 assertArrayEquals(['next'], |
161 Object.getOwnPropertyNames(ArrayIteratorPrototype)); | 158 Object.getOwnPropertyNames(ArrayIteratorPrototype)); |
162 assertHasOwnProperty(ArrayIteratorPrototype, 'next', DONT_ENUM); | 159 assertHasOwnProperty(ArrayIteratorPrototype, 'next', DONT_ENUM); |
163 assertHasOwnProperty(ArrayIteratorPrototype, Symbol.iterator, DONT_ENUM); | 160 assertHasOwnProperty(ArrayIteratorPrototype, Symbol.iterator, DONT_ENUM); |
164 } | 161 } |
165 TestArrayIteratorPrototype(); | 162 TestArrayIteratorPrototype(); |
166 | 163 |
167 | 164 |
168 function TestForArrayValues() { | 165 function TestForArrayValues() { |
169 var buffer = []; | 166 var buffer = []; |
170 var array = [0, 'a', true, false, null, /* hole */, undefined, NaN]; | 167 var array = [0, 'a', true, false, null, /* hole */, undefined, NaN]; |
171 var i = 0; | 168 var i = 0; |
172 for (var value of array.values()) { | 169 for (var value of array[Symbol.iterator]()) { |
173 buffer[i++] = value; | 170 buffer[i++] = value; |
174 } | 171 } |
175 | 172 |
176 assertEquals(8, buffer.length); | 173 assertEquals(8, buffer.length); |
177 | 174 |
178 for (var i = 0; i < buffer.length - 1; i++) { | 175 for (var i = 0; i < buffer.length - 1; i++) { |
179 assertSame(array[i], buffer[i]); | 176 assertSame(array[i], buffer[i]); |
180 } | 177 } |
181 assertTrue(isNaN(buffer[buffer.length - 1])); | 178 assertTrue(isNaN(buffer[buffer.length - 1])); |
182 } | 179 } |
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235 for (var i = 0; i < buffer.length - 1; i++) { | 232 for (var i = 0; i < buffer.length - 1; i++) { |
236 assertSame(array[i], buffer[i]); | 233 assertSame(array[i], buffer[i]); |
237 } | 234 } |
238 assertTrue(isNaN(buffer[buffer.length - 1])); | 235 assertTrue(isNaN(buffer[buffer.length - 1])); |
239 } | 236 } |
240 TestForArrayValues(); | 237 TestForArrayValues(); |
241 | 238 |
242 | 239 |
243 function TestNonOwnSlots() { | 240 function TestNonOwnSlots() { |
244 var array = [0]; | 241 var array = [0]; |
245 var iterator = array.values(); | 242 var iterator = array[Symbol.iterator](); |
246 var object = {__proto__: iterator}; | 243 var object = {__proto__: iterator}; |
247 | 244 |
248 assertThrows(function() { | 245 assertThrows(function() { |
249 object.next(); | 246 object.next(); |
250 }, TypeError); | 247 }, TypeError); |
251 } | 248 } |
252 TestNonOwnSlots(); | 249 TestNonOwnSlots(); |
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