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Side by Side Diff: src/full-codegen.h

Issue 6685088: Merge isolates to bleeding_edge. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 9 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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70 // Full code generator. 70 // Full code generator.
71 71
72 class FullCodeGenerator: public AstVisitor { 72 class FullCodeGenerator: public AstVisitor {
73 public: 73 public:
74 enum State { 74 enum State {
75 NO_REGISTERS, 75 NO_REGISTERS,
76 TOS_REG 76 TOS_REG
77 }; 77 };
78 78
79 explicit FullCodeGenerator(MacroAssembler* masm) 79 explicit FullCodeGenerator(MacroAssembler* masm)
80 : masm_(masm), 80 : isolate_(Isolate::Current()),
81 masm_(masm),
81 info_(NULL), 82 info_(NULL),
82 nesting_stack_(NULL), 83 nesting_stack_(NULL),
83 loop_depth_(0), 84 loop_depth_(0),
84 context_(NULL), 85 context_(NULL),
85 bailout_entries_(0), 86 bailout_entries_(0),
86 stack_checks_(2), // There's always at least one. 87 stack_checks_(2), // There's always at least one.
87 forward_bailout_stack_(NULL), 88 forward_bailout_stack_(NULL),
88 forward_bailout_pending_(NULL) { 89 forward_bailout_pending_(NULL) {
89 } 90 }
90 91
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486 void ExitFinallyBlock(); 487 void ExitFinallyBlock();
487 488
488 // Loop nesting counter. 489 // Loop nesting counter.
489 int loop_depth() { return loop_depth_; } 490 int loop_depth() { return loop_depth_; }
490 void increment_loop_depth() { loop_depth_++; } 491 void increment_loop_depth() { loop_depth_++; }
491 void decrement_loop_depth() { 492 void decrement_loop_depth() {
492 ASSERT(loop_depth_ > 0); 493 ASSERT(loop_depth_ > 0);
493 loop_depth_--; 494 loop_depth_--;
494 } 495 }
495 496
497 Isolate* isolate() { return isolate_; }
496 MacroAssembler* masm() { return masm_; } 498 MacroAssembler* masm() { return masm_; }
497 499
498 class ExpressionContext; 500 class ExpressionContext;
499 const ExpressionContext* context() { return context_; } 501 const ExpressionContext* context() { return context_; }
500 void set_new_context(const ExpressionContext* context) { context_ = context; } 502 void set_new_context(const ExpressionContext* context) { context_ = context; }
501 503
502 Handle<Script> script() { return info_->script(); } 504 Handle<Script> script() { return info_->script(); }
503 bool is_eval() { return info_->is_eval(); } 505 bool is_eval() { return info_->is_eval(); }
504 bool is_strict_mode() { return function()->strict_mode(); } 506 bool is_strict_mode() { return function()->strict_mode(); }
505 StrictModeFlag strict_mode_flag() { 507 StrictModeFlag strict_mode_flag() {
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546 public: 548 public:
547 explicit ExpressionContext(FullCodeGenerator* codegen) 549 explicit ExpressionContext(FullCodeGenerator* codegen)
548 : masm_(codegen->masm()), old_(codegen->context()), codegen_(codegen) { 550 : masm_(codegen->masm()), old_(codegen->context()), codegen_(codegen) {
549 codegen->set_new_context(this); 551 codegen->set_new_context(this);
550 } 552 }
551 553
552 virtual ~ExpressionContext() { 554 virtual ~ExpressionContext() {
553 codegen_->set_new_context(old_); 555 codegen_->set_new_context(old_);
554 } 556 }
555 557
558 Isolate* isolate() const { return codegen_->isolate(); }
559
556 // Convert constant control flow (true or false) to the result expected for 560 // Convert constant control flow (true or false) to the result expected for
557 // this expression context. 561 // this expression context.
558 virtual void Plug(bool flag) const = 0; 562 virtual void Plug(bool flag) const = 0;
559 563
560 // Emit code to convert a pure value (in a register, slot, as a literal, 564 // Emit code to convert a pure value (in a register, slot, as a literal,
561 // or on top of the stack) into the result expected according to this 565 // or on top of the stack) into the result expected according to this
562 // expression context. 566 // expression context.
563 virtual void Plug(Register reg) const = 0; 567 virtual void Plug(Register reg) const = 0;
564 virtual void Plug(Slot* slot) const = 0; 568 virtual void Plug(Slot* slot) const = 0;
565 virtual void Plug(Handle<Object> lit) const = 0; 569 virtual void Plug(Handle<Object> lit) const = 0;
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722 Label* done) const; 726 Label* done) const;
723 virtual void PrepareTest(Label* materialize_true, 727 virtual void PrepareTest(Label* materialize_true,
724 Label* materialize_false, 728 Label* materialize_false,
725 Label** if_true, 729 Label** if_true,
726 Label** if_false, 730 Label** if_false,
727 Label** fall_through) const; 731 Label** fall_through) const;
728 virtual void HandleExpression(Expression* expr) const; 732 virtual void HandleExpression(Expression* expr) const;
729 virtual bool IsEffect() const { return true; } 733 virtual bool IsEffect() const { return true; }
730 }; 734 };
731 735
736 Isolate* isolate_;
732 MacroAssembler* masm_; 737 MacroAssembler* masm_;
733 CompilationInfo* info_; 738 CompilationInfo* info_;
734 Label return_label_; 739 Label return_label_;
735 NestedStatement* nesting_stack_; 740 NestedStatement* nesting_stack_;
736 int loop_depth_; 741 int loop_depth_;
737 const ExpressionContext* context_; 742 const ExpressionContext* context_;
738 ZoneList<BailoutEntry> bailout_entries_; 743 ZoneList<BailoutEntry> bailout_entries_;
739 ZoneList<BailoutEntry> stack_checks_; 744 ZoneList<BailoutEntry> stack_checks_;
740 ForwardBailoutStack* forward_bailout_stack_; 745 ForwardBailoutStack* forward_bailout_stack_;
741 ForwardBailoutStack* forward_bailout_pending_; 746 ForwardBailoutStack* forward_bailout_pending_;
742 747
743 friend class NestedStatement; 748 friend class NestedStatement;
744 749
745 DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator); 750 DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator);
746 }; 751 };
747 752
748 753
749 } } // namespace v8::internal 754 } } // namespace v8::internal
750 755
751 #endif // V8_FULL_CODEGEN_H_ 756 #endif // V8_FULL_CODEGEN_H_
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