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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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168 static unsigned ReserveIdRange(int n) { | 168 static unsigned ReserveIdRange(int n) { |
169 unsigned tmp = current_id_; | 169 unsigned tmp = current_id_; |
170 current_id_ += n; | 170 current_id_ += n; |
171 return tmp; | 171 return tmp; |
172 } | 172 } |
173 | 173 |
174 private: | 174 private: |
175 static unsigned current_id_; | 175 static unsigned current_id_; |
176 static unsigned count_; | 176 static unsigned count_; |
177 unsigned id_; | 177 unsigned id_; |
| 178 |
| 179 friend class CaseClause; // Generates AST IDs. |
178 }; | 180 }; |
179 | 181 |
180 | 182 |
181 class Statement: public AstNode { | 183 class Statement: public AstNode { |
182 public: | 184 public: |
183 Statement() : statement_pos_(RelocInfo::kNoPosition) {} | 185 Statement() : statement_pos_(RelocInfo::kNoPosition) {} |
184 | 186 |
185 virtual Statement* AsStatement() { return this; } | 187 virtual Statement* AsStatement() { return this; } |
186 | 188 |
187 virtual Assignment* StatementAsSimpleAssignment() { return NULL; } | 189 virtual Assignment* StatementAsSimpleAssignment() { return NULL; } |
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687 Expression* label() const { | 689 Expression* label() const { |
688 CHECK(!is_default()); | 690 CHECK(!is_default()); |
689 return label_; | 691 return label_; |
690 } | 692 } |
691 JumpTarget* body_target() { return &body_target_; } | 693 JumpTarget* body_target() { return &body_target_; } |
692 ZoneList<Statement*>* statements() const { return statements_; } | 694 ZoneList<Statement*>* statements() const { return statements_; } |
693 | 695 |
694 int position() { return position_; } | 696 int position() { return position_; } |
695 void set_position(int pos) { position_ = pos; } | 697 void set_position(int pos) { position_ = pos; } |
696 | 698 |
| 699 int EntryId() { return entry_id_; } |
| 700 |
697 // Type feedback information. | 701 // Type feedback information. |
698 void RecordTypeFeedback(TypeFeedbackOracle* oracle); | 702 void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
699 bool IsSmiCompare() { return compare_type_ == SMI_ONLY; } | 703 bool IsSmiCompare() { return compare_type_ == SMI_ONLY; } |
700 bool IsObjectCompare() { return compare_type_ == OBJECT_ONLY; } | 704 bool IsObjectCompare() { return compare_type_ == OBJECT_ONLY; } |
701 | 705 |
702 private: | 706 private: |
703 Expression* label_; | 707 Expression* label_; |
704 JumpTarget body_target_; | 708 JumpTarget body_target_; |
705 ZoneList<Statement*>* statements_; | 709 ZoneList<Statement*>* statements_; |
706 int position_; | 710 int position_; |
707 enum CompareTypeFeedback { NONE, SMI_ONLY, OBJECT_ONLY }; | 711 enum CompareTypeFeedback { NONE, SMI_ONLY, OBJECT_ONLY }; |
708 CompareTypeFeedback compare_type_; | 712 CompareTypeFeedback compare_type_; |
| 713 int entry_id_; |
709 }; | 714 }; |
710 | 715 |
711 | 716 |
712 class SwitchStatement: public BreakableStatement { | 717 class SwitchStatement: public BreakableStatement { |
713 public: | 718 public: |
714 explicit inline SwitchStatement(ZoneStringList* labels); | 719 explicit inline SwitchStatement(ZoneStringList* labels); |
715 | 720 |
716 DECLARE_NODE_TYPE(SwitchStatement) | 721 DECLARE_NODE_TYPE(SwitchStatement) |
717 | 722 |
718 void Initialize(Expression* tag, ZoneList<CaseClause*>* cases) { | 723 void Initialize(Expression* tag, ZoneList<CaseClause*>* cases) { |
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2166 AST_NODE_LIST(DEF_VISIT) | 2171 AST_NODE_LIST(DEF_VISIT) |
2167 #undef DEF_VISIT | 2172 #undef DEF_VISIT |
2168 | 2173 |
2169 private: | 2174 private: |
2170 bool stack_overflow_; | 2175 bool stack_overflow_; |
2171 }; | 2176 }; |
2172 | 2177 |
2173 } } // namespace v8::internal | 2178 } } // namespace v8::internal |
2174 | 2179 |
2175 #endif // V8_AST_H_ | 2180 #endif // V8_AST_H_ |
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