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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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| 906 VisitStatements(node->statements()); | 906 VisitStatements(node->statements()); |
| 907 if (node->break_target()->is_linked()) { | 907 if (node->break_target()->is_linked()) { |
| 908 node->break_target()->Bind(); | 908 node->break_target()->Bind(); |
| 909 } | 909 } |
| 910 node->break_target()->Unuse(); | 910 node->break_target()->Unuse(); |
| 911 } | 911 } |
| 912 | 912 |
| 913 | 913 |
| 914 void CodeGenerator::VisitDeclaration(Declaration* node) { | 914 void CodeGenerator::VisitDeclaration(Declaration* node) { |
| 915 Comment cmnt(masm_, "[ Declaration"); | 915 Comment cmnt(masm_, "[ Declaration"); |
| 916 CodeForStatementPosition(node); | |
| 917 Variable* var = node->proxy()->var(); | 916 Variable* var = node->proxy()->var(); |
| 918 ASSERT(var != NULL); // must have been resolved | 917 ASSERT(var != NULL); // must have been resolved |
| 919 Slot* slot = var->slot(); | 918 Slot* slot = var->slot(); |
| 920 | 919 |
| 921 // If it was not possible to allocate the variable at compile time, | 920 // If it was not possible to allocate the variable at compile time, |
| 922 // we need to "declare" it at runtime to make sure it actually | 921 // we need to "declare" it at runtime to make sure it actually |
| 923 // exists in the local context. | 922 // exists in the local context. |
| 924 if (slot != NULL && slot->type() == Slot::LOOKUP) { | 923 if (slot != NULL && slot->type() == Slot::LOOKUP) { |
| 925 // Variables with a "LOOKUP" slot were introduced as non-locals | 924 // Variables with a "LOOKUP" slot were introduced as non-locals |
| 926 // during variable resolution and must have mode DYNAMIC. | 925 // during variable resolution and must have mode DYNAMIC. |
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| 2585 Load(node->key()); | 2584 Load(node->key()); |
| 2586 Load(node->value()); | 2585 Load(node->value()); |
| 2587 Result result = | 2586 Result result = |
| 2588 frame_->CallRuntime(Runtime::kCreateCatchExtensionObject, 2); | 2587 frame_->CallRuntime(Runtime::kCreateCatchExtensionObject, 2); |
| 2589 frame_->Push(&result); | 2588 frame_->Push(&result); |
| 2590 } | 2589 } |
| 2591 | 2590 |
| 2592 | 2591 |
| 2593 void CodeGenerator::VisitAssignment(Assignment* node) { | 2592 void CodeGenerator::VisitAssignment(Assignment* node) { |
| 2594 Comment cmnt(masm_, "[ Assignment"); | 2593 Comment cmnt(masm_, "[ Assignment"); |
| 2595 CodeForStatementPosition(node); | |
| 2596 | 2594 |
| 2597 { Reference target(this, node->target()); | 2595 { Reference target(this, node->target()); |
| 2598 if (target.is_illegal()) { | 2596 if (target.is_illegal()) { |
| 2599 // Fool the virtual frame into thinking that we left the assignment's | 2597 // Fool the virtual frame into thinking that we left the assignment's |
| 2600 // value on the frame. | 2598 // value on the frame. |
| 2601 frame_->Push(Smi::FromInt(0)); | 2599 frame_->Push(Smi::FromInt(0)); |
| 2602 return; | 2600 return; |
| 2603 } | 2601 } |
| 2604 Variable* var = node->target()->AsVariableProxy()->AsVariable(); | 2602 Variable* var = node->target()->AsVariableProxy()->AsVariable(); |
| 2605 | 2603 |
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| 2667 frame_->PushElementAt(target.size()); | 2665 frame_->PushElementAt(target.size()); |
| 2668 Result ignored = frame_->CallRuntime(Runtime::kToFastProperties, 1); | 2666 Result ignored = frame_->CallRuntime(Runtime::kToFastProperties, 1); |
| 2669 } | 2667 } |
| 2670 } | 2668 } |
| 2671 } | 2669 } |
| 2672 } | 2670 } |
| 2673 | 2671 |
| 2674 | 2672 |
| 2675 void CodeGenerator::VisitThrow(Throw* node) { | 2673 void CodeGenerator::VisitThrow(Throw* node) { |
| 2676 Comment cmnt(masm_, "[ Throw"); | 2674 Comment cmnt(masm_, "[ Throw"); |
| 2677 CodeForStatementPosition(node); | |
| 2678 | |
| 2679 Load(node->exception()); | 2675 Load(node->exception()); |
| 2680 Result result = frame_->CallRuntime(Runtime::kThrow, 1); | 2676 Result result = frame_->CallRuntime(Runtime::kThrow, 1); |
| 2681 frame_->Push(&result); | 2677 frame_->Push(&result); |
| 2682 } | 2678 } |
| 2683 | 2679 |
| 2684 | 2680 |
| 2685 void CodeGenerator::VisitProperty(Property* node) { | 2681 void CodeGenerator::VisitProperty(Property* node) { |
| 2686 Comment cmnt(masm_, "[ Property"); | 2682 Comment cmnt(masm_, "[ Property"); |
| 2687 Reference property(this, node); | 2683 Reference property(this, node); |
| 2688 property.GetValue(typeof_state()); | 2684 property.GetValue(typeof_state()); |
| 2689 } | 2685 } |
| 2690 | 2686 |
| 2691 | 2687 |
| 2692 void CodeGenerator::VisitCall(Call* node) { | 2688 void CodeGenerator::VisitCall(Call* node) { |
| 2693 Comment cmnt(masm_, "[ Call"); | 2689 Comment cmnt(masm_, "[ Call"); |
| 2694 | 2690 |
| 2695 ZoneList<Expression*>* args = node->arguments(); | 2691 ZoneList<Expression*>* args = node->arguments(); |
| 2696 | 2692 |
| 2697 CodeForStatementPosition(node); | |
| 2698 | |
| 2699 // Check if the function is a variable or a property. | 2693 // Check if the function is a variable or a property. |
| 2700 Expression* function = node->expression(); | 2694 Expression* function = node->expression(); |
| 2701 Variable* var = function->AsVariableProxy()->AsVariable(); | 2695 Variable* var = function->AsVariableProxy()->AsVariable(); |
| 2702 Property* property = function->AsProperty(); | 2696 Property* property = function->AsProperty(); |
| 2703 | 2697 |
| 2704 // ------------------------------------------------------------------------ | 2698 // ------------------------------------------------------------------------ |
| 2705 // Fast-case: Use inline caching. | 2699 // Fast-case: Use inline caching. |
| 2706 // --- | 2700 // --- |
| 2707 // According to ECMA-262, section 11.2.3, page 44, the function to call | 2701 // According to ECMA-262, section 11.2.3, page 44, the function to call |
| 2708 // must be resolved after the arguments have been evaluated. The IC code | 2702 // must be resolved after the arguments have been evaluated. The IC code |
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| 2848 void CodeGenerator::VisitCallEval(CallEval* node) { | 2842 void CodeGenerator::VisitCallEval(CallEval* node) { |
| 2849 Comment cmnt(masm_, "[ CallEval"); | 2843 Comment cmnt(masm_, "[ CallEval"); |
| 2850 | 2844 |
| 2851 // In a call to eval, we first call %ResolvePossiblyDirectEval to resolve | 2845 // In a call to eval, we first call %ResolvePossiblyDirectEval to resolve |
| 2852 // the function we need to call and the receiver of the call. | 2846 // the function we need to call and the receiver of the call. |
| 2853 // Then we call the resolved function using the given arguments. | 2847 // Then we call the resolved function using the given arguments. |
| 2854 | 2848 |
| 2855 ZoneList<Expression*>* args = node->arguments(); | 2849 ZoneList<Expression*>* args = node->arguments(); |
| 2856 Expression* function = node->expression(); | 2850 Expression* function = node->expression(); |
| 2857 | 2851 |
| 2858 CodeForStatementPosition(node); | |
| 2859 | |
| 2860 // Prepare the stack for the call to the resolved function. | 2852 // Prepare the stack for the call to the resolved function. |
| 2861 Load(function); | 2853 Load(function); |
| 2862 | 2854 |
| 2863 // Allocate a frame slot for the receiver. | 2855 // Allocate a frame slot for the receiver. |
| 2864 frame_->Push(Factory::undefined_value()); | 2856 frame_->Push(Factory::undefined_value()); |
| 2865 int arg_count = args->length(); | 2857 int arg_count = args->length(); |
| 2866 for (int i = 0; i < arg_count; i++) { | 2858 for (int i = 0; i < arg_count; i++) { |
| 2867 Load(args->at(i)); | 2859 Load(args->at(i)); |
| 2868 } | 2860 } |
| 2869 | 2861 |
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| 2901 | 2893 |
| 2902 // Restore the context and overwrite the function on the stack with | 2894 // Restore the context and overwrite the function on the stack with |
| 2903 // the result. | 2895 // the result. |
| 2904 frame_->RestoreContextRegister(); | 2896 frame_->RestoreContextRegister(); |
| 2905 frame_->SetElementAt(0, &result); | 2897 frame_->SetElementAt(0, &result); |
| 2906 } | 2898 } |
| 2907 | 2899 |
| 2908 | 2900 |
| 2909 void CodeGenerator::VisitCallNew(CallNew* node) { | 2901 void CodeGenerator::VisitCallNew(CallNew* node) { |
| 2910 Comment cmnt(masm_, "[ CallNew"); | 2902 Comment cmnt(masm_, "[ CallNew"); |
| 2911 CodeForStatementPosition(node); | |
| 2912 | 2903 |
| 2913 // According to ECMA-262, section 11.2.2, page 44, the function | 2904 // According to ECMA-262, section 11.2.2, page 44, the function |
| 2914 // expression in new calls must be evaluated before the | 2905 // expression in new calls must be evaluated before the |
| 2915 // arguments. This is different from ordinary calls, where the | 2906 // arguments. This is different from ordinary calls, where the |
| 2916 // actual function to call is resolved after the arguments have been | 2907 // actual function to call is resolved after the arguments have been |
| 2917 // evaluated. | 2908 // evaluated. |
| 2918 | 2909 |
| 2919 // Compute function to call and use the global object as the | 2910 // Compute function to call and use the global object as the |
| 2920 // receiver. There is no need to use the global proxy here because | 2911 // receiver. There is no need to use the global proxy here because |
| 2921 // it will always be replaced with a newly allocated object. | 2912 // it will always be replaced with a newly allocated object. |
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| 7683 int CompareStub::MinorKey() { | 7674 int CompareStub::MinorKey() { |
| 7684 // Encode the two parameters in a unique 16 bit value. | 7675 // Encode the two parameters in a unique 16 bit value. |
| 7685 ASSERT(static_cast<unsigned>(cc_) < (1 << 15)); | 7676 ASSERT(static_cast<unsigned>(cc_) < (1 << 15)); |
| 7686 return (static_cast<unsigned>(cc_) << 1) | (strict_ ? 1 : 0); | 7677 return (static_cast<unsigned>(cc_) << 1) | (strict_ ? 1 : 0); |
| 7687 } | 7678 } |
| 7688 | 7679 |
| 7689 | 7680 |
| 7690 #undef __ | 7681 #undef __ |
| 7691 | 7682 |
| 7692 } } // namespace v8::internal | 7683 } } // namespace v8::internal |
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