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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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1165 { get: getter, set: undefined, configurable: true }); | 1165 { get: getter, set: undefined, configurable: true }); |
1166 | 1166 |
1167 exception = false; | 1167 exception = false; |
1168 try { | 1168 try { |
1169 testSetterOnProtoStrict(obj3); | 1169 testSetterOnProtoStrict(obj3); |
1170 } catch (e) { | 1170 } catch (e) { |
1171 exception = true; | 1171 exception = true; |
1172 assertTrue(/which has only a getter/.test(e)); | 1172 assertTrue(/which has only a getter/.test(e)); |
1173 } | 1173 } |
1174 assertTrue(exception); | 1174 assertTrue(exception); |
| 1175 |
| 1176 // Test assignment to a getter-only property on the prototype chain. This makes |
| 1177 // sure that crankshaft re-checks its assumptions and doesn't rely only on type |
| 1178 // feedback (which would be monomorphic here). |
| 1179 |
| 1180 function Assign(o) { |
| 1181 o.blubb = 123; |
| 1182 } |
| 1183 |
| 1184 function C() {} |
| 1185 |
| 1186 Assign(new C); |
| 1187 Assign(new C); |
| 1188 %OptimizeFunctionOnNextCall(Assign); |
| 1189 Object.defineProperty(C.prototype, "blubb", {get: function() { return -42; }}); |
| 1190 Assign(new C); |
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