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1 // Copyright 2012 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: --allow-natives-syntax | 28 // Flags: --allow-natives-syntax |
29 | 29 |
30 // Test HLoadNamedField on the proto chain. | 30 // Test loading a constant function on the prototype chain. |
31 | 31 |
32 var obj4 = Object.create(null, { f4: {value: 4} }); | 32 var c = Object.create; |
33 var obj3 = Object.create(obj4, { f3: {value: 3} }); | 33 var obj4 = c(null, { f4: { value: function() { return 4; }, writable: true }}); |
34 var obj2 = Object.create(obj3, { f2: {value: 2} }); | 34 var obj3 = c(obj4, { f3: { value: function() { return 3; }, writable: true }}); |
35 var obj1 = Object.create(obj2, { f1: {value: 1} }); | 35 var obj2 = c(obj3, { f2: { value: function() { return 2; }, writable: true }}); |
36 var obj0 = Object.create(obj1, { f0: {value: 0} }); | 36 var obj1 = c(obj2, { f1: { value: function() { return 1; }, writable: true }}); |
| 37 var obj0 = c(obj1, { f0: { value: function() { return 0; }, writable: true }}); |
37 | 38 |
38 function get4(obj) { return obj.f4; } | 39 function get4(obj) { return obj.f4; } |
39 | 40 |
40 assertEquals(4, get4(obj0)); | 41 assertEquals(4, get4(obj0)()); |
41 assertEquals(4, get4(obj0)); | 42 assertEquals(4, get4(obj0)()); |
42 %OptimizeFunctionOnNextCall(get4); | 43 %OptimizeFunctionOnNextCall(get4); |
43 assertEquals(4, get4(obj0)); | 44 assertEquals(4, get4(obj0)()); |
44 assertEquals(4, get4(obj0)); | 45 obj4.f4 = function() { return 5; }; |
| 46 assertEquals(5, get4(obj0)()); |
| 47 |
| 48 function get3(obj) { return obj.f3; } |
| 49 |
| 50 assertEquals(3, get3(obj0)()); |
| 51 assertEquals(3, get3(obj0)()); |
| 52 %OptimizeFunctionOnNextCall(get3); |
| 53 assertEquals(3, get3(obj0)()); |
| 54 obj2.f3 = function() { return 6; }; |
| 55 assertEquals(6, get3(obj0)()); |
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