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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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1804 if (result_saved) { | 1804 if (result_saved) { |
1805 __ add(esp, Immediate(kPointerSize)); // literal index | 1805 __ add(esp, Immediate(kPointerSize)); // literal index |
1806 context()->PlugTOS(); | 1806 context()->PlugTOS(); |
1807 } else { | 1807 } else { |
1808 context()->Plug(eax); | 1808 context()->Plug(eax); |
1809 } | 1809 } |
1810 } | 1810 } |
1811 | 1811 |
1812 | 1812 |
1813 void FullCodeGenerator::VisitAssignment(Assignment* expr) { | 1813 void FullCodeGenerator::VisitAssignment(Assignment* expr) { |
| 1814 ASSERT(expr->target()->IsValidLeftHandSide()); |
| 1815 |
1814 Comment cmnt(masm_, "[ Assignment"); | 1816 Comment cmnt(masm_, "[ Assignment"); |
1815 // Invalid left-hand sides are rewritten to have a 'throw ReferenceError' | |
1816 // on the left-hand side. | |
1817 if (!expr->target()->IsValidLeftHandSide()) { | |
1818 VisitForEffect(expr->target()); | |
1819 return; | |
1820 } | |
1821 | 1817 |
1822 // Left-hand side can only be a property, a global or a (parameter or local) | 1818 // Left-hand side can only be a property, a global or a (parameter or local) |
1823 // slot. | 1819 // slot. |
1824 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; | 1820 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
1825 LhsKind assign_type = VARIABLE; | 1821 LhsKind assign_type = VARIABLE; |
1826 Property* property = expr->target()->AsProperty(); | 1822 Property* property = expr->target()->AsProperty(); |
1827 if (property != NULL) { | 1823 if (property != NULL) { |
1828 assign_type = (property->key()->IsPropertyName()) | 1824 assign_type = (property->key()->IsPropertyName()) |
1829 ? NAMED_PROPERTY | 1825 ? NAMED_PROPERTY |
1830 : KEYED_PROPERTY; | 1826 : KEYED_PROPERTY; |
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2339 __ pop(edx); | 2335 __ pop(edx); |
2340 BinaryOpICStub stub(op, mode); | 2336 BinaryOpICStub stub(op, mode); |
2341 JumpPatchSite patch_site(masm_); // unbound, signals no inlined smi code. | 2337 JumpPatchSite patch_site(masm_); // unbound, signals no inlined smi code. |
2342 CallIC(stub.GetCode(isolate()), expr->BinaryOperationFeedbackId()); | 2338 CallIC(stub.GetCode(isolate()), expr->BinaryOperationFeedbackId()); |
2343 patch_site.EmitPatchInfo(); | 2339 patch_site.EmitPatchInfo(); |
2344 context()->Plug(eax); | 2340 context()->Plug(eax); |
2345 } | 2341 } |
2346 | 2342 |
2347 | 2343 |
2348 void FullCodeGenerator::EmitAssignment(Expression* expr) { | 2344 void FullCodeGenerator::EmitAssignment(Expression* expr) { |
2349 // Invalid left-hand sides are rewritten by the parser to have a 'throw | 2345 ASSERT(expr->IsValidLeftHandSide()); |
2350 // ReferenceError' on the left-hand side. | |
2351 if (!expr->IsValidLeftHandSide()) { | |
2352 VisitForEffect(expr); | |
2353 return; | |
2354 } | |
2355 | 2346 |
2356 // Left-hand side can only be a property, a global or a (parameter or local) | 2347 // Left-hand side can only be a property, a global or a (parameter or local) |
2357 // slot. | 2348 // slot. |
2358 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; | 2349 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
2359 LhsKind assign_type = VARIABLE; | 2350 LhsKind assign_type = VARIABLE; |
2360 Property* prop = expr->AsProperty(); | 2351 Property* prop = expr->AsProperty(); |
2361 if (prop != NULL) { | 2352 if (prop != NULL) { |
2362 assign_type = (prop->key()->IsPropertyName()) | 2353 assign_type = (prop->key()->IsPropertyName()) |
2363 ? NAMED_PROPERTY | 2354 ? NAMED_PROPERTY |
2364 : KEYED_PROPERTY; | 2355 : KEYED_PROPERTY; |
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4264 break; | 4255 break; |
4265 } | 4256 } |
4266 | 4257 |
4267 default: | 4258 default: |
4268 UNREACHABLE(); | 4259 UNREACHABLE(); |
4269 } | 4260 } |
4270 } | 4261 } |
4271 | 4262 |
4272 | 4263 |
4273 void FullCodeGenerator::VisitCountOperation(CountOperation* expr) { | 4264 void FullCodeGenerator::VisitCountOperation(CountOperation* expr) { |
| 4265 ASSERT(expr->expression()->IsValidLeftHandSide()); |
| 4266 |
4274 Comment cmnt(masm_, "[ CountOperation"); | 4267 Comment cmnt(masm_, "[ CountOperation"); |
4275 SetSourcePosition(expr->position()); | 4268 SetSourcePosition(expr->position()); |
4276 | 4269 |
4277 // Invalid left-hand sides are rewritten to have a 'throw ReferenceError' | |
4278 // as the left-hand side. | |
4279 if (!expr->expression()->IsValidLeftHandSide()) { | |
4280 VisitForEffect(expr->expression()); | |
4281 return; | |
4282 } | |
4283 | |
4284 // Expression can only be a property, a global or a (parameter or local) | 4270 // Expression can only be a property, a global or a (parameter or local) |
4285 // slot. | 4271 // slot. |
4286 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; | 4272 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
4287 LhsKind assign_type = VARIABLE; | 4273 LhsKind assign_type = VARIABLE; |
4288 Property* prop = expr->expression()->AsProperty(); | 4274 Property* prop = expr->expression()->AsProperty(); |
4289 // In case of a property we use the uninitialized expression context | 4275 // In case of a property we use the uninitialized expression context |
4290 // of the key to detect a named property. | 4276 // of the key to detect a named property. |
4291 if (prop != NULL) { | 4277 if (prop != NULL) { |
4292 assign_type = | 4278 assign_type = |
4293 (prop->key()->IsPropertyName()) ? NAMED_PROPERTY : KEYED_PROPERTY; | 4279 (prop->key()->IsPropertyName()) ? NAMED_PROPERTY : KEYED_PROPERTY; |
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4897 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4883 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4898 Assembler::target_address_at(call_target_address, | 4884 Assembler::target_address_at(call_target_address, |
4899 unoptimized_code)); | 4885 unoptimized_code)); |
4900 return OSR_AFTER_STACK_CHECK; | 4886 return OSR_AFTER_STACK_CHECK; |
4901 } | 4887 } |
4902 | 4888 |
4903 | 4889 |
4904 } } // namespace v8::internal | 4890 } } // namespace v8::internal |
4905 | 4891 |
4906 #endif // V8_TARGET_ARCH_IA32 | 4892 #endif // V8_TARGET_ARCH_IA32 |
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