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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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21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --harmony-iteration --allow-natives-syntax | 28 // Flags: --harmony-iteration --allow-natives-syntax |
29 | 29 |
30 | 30 |
31 var NONE = 0; | |
32 var READ_ONLY = 1; | |
33 var DONT_ENUM = 2; | |
34 var DONT_DELETE = 4; | |
35 | |
36 | |
37 function assertHasOwnProperty(object, name, attrs) { | |
38 assertTrue(object.hasOwnProperty(name)); | |
39 var desc = Object.getOwnPropertyDescriptor(object, name); | |
40 assertEquals(desc.writable, !(attrs & READ_ONLY)); | |
41 assertEquals(desc.enumerable, !(attrs & DONT_ENUM)); | |
42 assertEquals(desc.configurable, !(attrs & DONT_DELETE)); | |
43 } | |
44 | |
45 | |
31 function TestArrayPrototype() { | 46 function TestArrayPrototype() { |
32 assertTrue(Array.prototype.hasOwnProperty('entries')); | 47 assertHasOwnProperty(Array.prototype, 'entries', DONT_ENUM); |
33 assertTrue(Array.prototype.hasOwnProperty('values')); | 48 assertHasOwnProperty(Array.prototype, 'values', DONT_ENUM); |
34 assertTrue(Array.prototype.hasOwnProperty('keys')); | 49 assertHasOwnProperty(Array.prototype, 'keys', DONT_ENUM); |
50 assertHasOwnProperty(Array.prototype, Symbol.iterator, DONT_ENUM); | |
35 | 51 |
36 assertFalse(Array.prototype.propertyIsEnumerable('entries')); | 52 assertEquals(Array.prototype.values, Array.prototype[Symbol.iterator]); |
37 assertFalse(Array.prototype.propertyIsEnumerable('values')); | |
38 assertFalse(Array.prototype.propertyIsEnumerable('keys')); | |
39 } | 53 } |
40 TestArrayPrototype(); | 54 TestArrayPrototype(); |
41 | 55 |
42 | 56 |
43 function assertIteratorResult(value, done, result) { | 57 function assertIteratorResult(value, done, result) { |
44 assertEquals({value: value, done: done}, result); | 58 assertEquals({value: value, done: done}, result); |
45 } | 59 } |
46 | 60 |
47 | 61 |
48 function TestValues() { | 62 function TestValues() { |
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120 assertIteratorResult([1, 'b'], false, iterator.next()); | 134 assertIteratorResult([1, 'b'], false, iterator.next()); |
121 assertIteratorResult([2, 'c'], false, iterator.next()); | 135 assertIteratorResult([2, 'c'], false, iterator.next()); |
122 array.push('d'); | 136 array.push('d'); |
123 assertIteratorResult([3, 'd'], false, iterator.next()); | 137 assertIteratorResult([3, 'd'], false, iterator.next()); |
124 assertIteratorResult(void 0, true, iterator.next()); | 138 assertIteratorResult(void 0, true, iterator.next()); |
125 } | 139 } |
126 TestEntriesMutate(); | 140 TestEntriesMutate(); |
127 | 141 |
128 | 142 |
129 function TestArrayIteratorPrototype() { | 143 function TestArrayIteratorPrototype() { |
130 var ArrayIteratorPrototype = [].values().__proto__; | |
131 assertFalse(ArrayIteratorPrototype.hasOwnProperty('constructor')); | |
132 assertEquals(ArrayIteratorPrototype.__proto__, Object.prototype); | |
133 assertArrayEquals(['next'], | |
134 Object.getOwnPropertyNames(ArrayIteratorPrototype)); | |
135 } | |
136 TestArrayIteratorPrototype(); | |
137 | |
138 | |
139 function TestArrayIteratorPrototype() { | |
140 var array = []; | 144 var array = []; |
141 var iterator = array.values(); | 145 var iterator = array.values(); |
142 | 146 |
143 var ArrayIteratorPrototype = iterator.__proto__; | 147 var ArrayIteratorPrototype = iterator.__proto__; |
144 | 148 |
145 assertEquals(ArrayIteratorPrototype, array.values().__proto__); | 149 assertEquals(ArrayIteratorPrototype, array.values().__proto__); |
146 assertEquals(ArrayIteratorPrototype, array.keys().__proto__); | 150 assertEquals(ArrayIteratorPrototype, array.keys().__proto__); |
147 assertEquals(ArrayIteratorPrototype, array.entries().__proto__); | 151 assertEquals(ArrayIteratorPrototype, array.entries().__proto__); |
148 | 152 |
149 assertEquals(Object.prototype, ArrayIteratorPrototype.__proto__); | 153 assertEquals(Object.prototype, ArrayIteratorPrototype.__proto__); |
150 | 154 |
151 assertEquals('Array Iterator', %_ClassOf(array.values())); | 155 assertEquals('Array Iterator', %_ClassOf(array.values())); |
152 assertEquals('Array Iterator', %_ClassOf(array.keys())); | 156 assertEquals('Array Iterator', %_ClassOf(array.keys())); |
153 assertEquals('Array Iterator', %_ClassOf(array.entries())); | 157 assertEquals('Array Iterator', %_ClassOf(array.entries())); |
154 | 158 |
155 assertFalse(ArrayIteratorPrototype.hasOwnProperty('constructor')); | 159 assertFalse(ArrayIteratorPrototype.hasOwnProperty('constructor')); |
156 assertArrayEquals(['next'], | 160 assertArrayEquals(['next'], |
157 Object.getOwnPropertyNames(ArrayIteratorPrototype)); | 161 Object.getOwnPropertyNames(ArrayIteratorPrototype)); |
162 assertHasOwnProperty(ArrayIteratorPrototype, 'next', DONT_ENUM); | |
163 assertHasOwnProperty(ArrayIteratorPrototype, Symbol.iterator, DONT_ENUM); | |
158 } | 164 } |
159 TestArrayIteratorPrototype(); | 165 TestArrayIteratorPrototype(); |
160 | 166 |
161 | 167 |
162 function TestForArrayValues() { | 168 function TestForArrayValues() { |
163 var buffer = []; | 169 var buffer = []; |
164 var array = [0, 'a', true, false, null, /* hole */, undefined, NaN]; | 170 var array = [0, 'a', true, false, null, /* hole */, undefined, NaN]; |
165 var i = 0; | 171 var i = 0; |
166 for (var value of array.values()) { | 172 for (var value of array.values()) { |
167 buffer[i++] = value; | 173 buffer[i++] = value; |
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209 } | 215 } |
210 assertTrue(isNaN(buffer[buffer.length - 1][1])); | 216 assertTrue(isNaN(buffer[buffer.length - 1][1])); |
211 | 217 |
212 for (var i = 0; i < buffer.length; i++) { | 218 for (var i = 0; i < buffer.length; i++) { |
213 assertEquals(i, buffer[i][0]); | 219 assertEquals(i, buffer[i][0]); |
214 } | 220 } |
215 } | 221 } |
216 TestForArrayEntries(); | 222 TestForArrayEntries(); |
217 | 223 |
218 | 224 |
225 function TestForArray() { | |
226 var buffer = []; | |
227 var array = [0, 'a', true, false, null, /* hole */, undefined, NaN]; | |
228 var i = 0; | |
229 for (var value of array) { | |
230 buffer[i++] = value; | |
231 } | |
232 | |
233 assertEquals(8, buffer.length); | |
234 | |
235 for (var i = 0; i < buffer.length - 1; i++) { | |
236 assertEquals(array[i], buffer[i]); | |
rossberg
2014/06/18 09:25:45
Use assertSame to avoid the special case for NaN.
rossberg
2014/06/25 07:52:39
Just saw that you changed this to assertSame, but
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237 } | |
238 assertTrue(isNaN(buffer[buffer.length - 1])); | |
239 } | |
240 TestForArrayValues(); | |
241 | |
242 | |
219 function TestNonOwnSlots() { | 243 function TestNonOwnSlots() { |
220 var array = [0]; | 244 var array = [0]; |
221 var iterator = array.values(); | 245 var iterator = array.values(); |
222 var object = {__proto__: iterator}; | 246 var object = {__proto__: iterator}; |
223 | 247 |
224 assertThrows(function() { | 248 assertThrows(function() { |
225 object.next(); | 249 object.next(); |
226 }, TypeError); | 250 }, TypeError); |
227 } | 251 } |
228 TestNonOwnSlots(); | 252 TestNonOwnSlots(); |
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