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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 |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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-scoping --allow-natives-syntax | 28 // Flags: --harmony-scoping --allow-natives-syntax --harmony-tostring |
29 | 29 |
30 // Test instantations of generators. | 30 // Test instantations of generators. |
31 | 31 |
32 // Generators shouldn't allocate stack slots. This test will abort in debug | 32 // Generators shouldn't allocate stack slots. This test will abort in debug |
33 // mode if generators have stack slots. | 33 // mode if generators have stack slots. |
34 function TestContextAllocation() { | 34 function TestContextAllocation() { |
35 function* g1(a, b, c) { yield 1; return [a, b, c]; } | 35 function* g1(a, b, c) { yield 1; return [a, b, c]; } |
36 function* g2() { yield 1; return arguments; } | 36 function* g2() { yield 1; return arguments; } |
37 function* g3() { yield 1; return this; } | 37 function* g3() { yield 1; return this; } |
38 function* g4() { var x = 10; yield 1; return x; } | 38 function* g4() { var x = 10; yield 1; return x; } |
(...skipping 20 matching lines...) Expand all Loading... |
59 assertEquals("[object Generator]", String(iter)); | 59 assertEquals("[object Generator]", String(iter)); |
60 assertEquals([], Object.getOwnPropertyNames(iter)); | 60 assertEquals([], Object.getOwnPropertyNames(iter)); |
61 assertTrue(iter !== g()); | 61 assertTrue(iter !== g()); |
62 | 62 |
63 // g() is the same as new g(). | 63 // g() is the same as new g(). |
64 iter = new g(); | 64 iter = new g(); |
65 assertSame(g.prototype, Object.getPrototypeOf(iter)); | 65 assertSame(g.prototype, Object.getPrototypeOf(iter)); |
66 assertTrue(iter instanceof g); | 66 assertTrue(iter instanceof g); |
67 assertEquals("Generator", %_ClassOf(iter)); | 67 assertEquals("Generator", %_ClassOf(iter)); |
68 assertEquals("[object Generator]", String(iter)); | 68 assertEquals("[object Generator]", String(iter)); |
| 69 assertEquals("[object Generator]", Object.prototype.toString.call(iter)); |
69 assertEquals([], Object.getOwnPropertyNames(iter)); | 70 assertEquals([], Object.getOwnPropertyNames(iter)); |
70 assertTrue(iter !== new g()); | 71 assertTrue(iter !== new g()); |
71 } | 72 } |
72 TestGeneratorObject(); | 73 TestGeneratorObject(); |
73 | 74 |
74 | 75 |
75 // Test the methods of generator objects. | 76 // Test the methods of generator objects. |
76 function TestGeneratorObjectMethods() { | 77 function TestGeneratorObjectMethods() { |
77 function* g() { yield 1; } | 78 function* g() { yield 1; } |
78 var iter = g(); | 79 var iter = g(); |
79 | 80 |
80 function TestNonGenerator(non_generator) { | 81 function TestNonGenerator(non_generator) { |
81 assertThrows(function() { iter.next.call(non_generator); }, TypeError); | 82 assertThrows(function() { iter.next.call(non_generator); }, TypeError); |
82 assertThrows(function() { iter.next.call(non_generator, 1); }, TypeError); | 83 assertThrows(function() { iter.next.call(non_generator, 1); }, TypeError); |
83 assertThrows(function() { iter.throw.call(non_generator, 1); }, TypeError); | 84 assertThrows(function() { iter.throw.call(non_generator, 1); }, TypeError); |
84 assertThrows(function() { iter.close.call(non_generator); }, TypeError); | 85 assertThrows(function() { iter.close.call(non_generator); }, TypeError); |
85 } | 86 } |
86 | 87 |
87 TestNonGenerator(1); | 88 TestNonGenerator(1); |
88 TestNonGenerator({}); | 89 TestNonGenerator({}); |
89 TestNonGenerator(function(){}); | 90 TestNonGenerator(function(){}); |
90 TestNonGenerator(g); | 91 TestNonGenerator(g); |
91 TestNonGenerator(g.prototype); | 92 TestNonGenerator(g.prototype); |
92 } | 93 } |
93 TestGeneratorObjectMethods(); | 94 TestGeneratorObjectMethods(); |
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