| 1 | // | 
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo | 
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| 3 | // | 
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| 4 | // The contents of this file are covered under the licence agreement in the | 
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| 5 | // file "LICENCE" distributed with Cforall. | 
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| 6 | // | 
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| 7 | // Statement.h -- | 
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| 8 | // | 
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| 9 | // Author           : Richard C. Bilson | 
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| 10 | // Created On       : Mon May 18 07:44:20 2015 | 
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| 11 | // Last Modified By : Rob Schluntz | 
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| 12 | // Last Modified On : Wed Dec 09 14:09:24 2015 | 
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| 13 | // Update Count     : 46 | 
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| 14 | // | 
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| 15 |  | 
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| 16 | #ifndef STATEMENT_H | 
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| 17 | #define STATEMENT_H | 
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| 18 |  | 
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| 19 | #include "SynTree.h" | 
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| 20 | #include "Visitor.h" | 
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| 21 | #include "Mutator.h" | 
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| 22 | #include "Common/SemanticError.h" | 
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| 23 |  | 
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| 24 | class Statement { | 
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| 25 | public: | 
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| 26 | Statement( std::list<Label> labels ); | 
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| 27 | virtual ~Statement(); | 
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| 28 |  | 
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| 29 | std::list<Label> & get_labels() { return labels; } | 
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| 30 | const std::list<Label> & get_labels() const { return labels; } | 
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| 31 |  | 
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| 32 | virtual Statement *clone() const = 0; | 
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| 33 | virtual void accept( Visitor &v ) = 0; | 
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| 34 | virtual Statement *acceptMutator( Mutator &m ) = 0; | 
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| 35 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 36 | protected: | 
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| 37 | std::list<Label> labels; | 
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| 38 | }; | 
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| 39 |  | 
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| 40 | class CompoundStmt : public Statement { | 
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| 41 | public: | 
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| 42 | CompoundStmt( std::list<Label> labels ); | 
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| 43 | CompoundStmt( const CompoundStmt &other ); | 
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| 44 | virtual ~CompoundStmt(); | 
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| 45 |  | 
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| 46 | std::list<Statement*>& get_kids() { return kids; } | 
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| 47 |  | 
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| 48 | virtual CompoundStmt *clone() const { return new CompoundStmt( *this ); } | 
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| 49 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 50 | virtual CompoundStmt *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 51 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 52 | private: | 
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| 53 | std::list<Statement*> kids; | 
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| 54 | }; | 
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| 55 |  | 
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| 56 | class ExprStmt : public Statement { | 
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| 57 | public: | 
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| 58 | ExprStmt( std::list<Label> labels, Expression *expr ); | 
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| 59 | ExprStmt( const ExprStmt &other ); | 
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| 60 | virtual ~ExprStmt(); | 
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| 61 |  | 
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| 62 | Expression *get_expr() { return expr; } | 
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| 63 | void set_expr( Expression *newValue ) { expr = newValue; } | 
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| 64 |  | 
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| 65 | virtual ExprStmt *clone() const { return new ExprStmt( *this ); } | 
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| 66 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 67 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 68 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 69 | private: | 
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| 70 | Expression *expr; | 
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| 71 | }; | 
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| 72 |  | 
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| 73 | class AsmStmt : public Statement { | 
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| 74 | public: | 
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| 75 | AsmStmt( std::list<Label> labels, bool voltile, ConstantExpr *instruction, std::list<Expression *> input, std::list<Expression *> output, std::list<ConstantExpr *> clobber, std::list<Label> gotolabels ); | 
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| 76 | AsmStmt( const AsmStmt &other ); | 
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| 77 | virtual ~AsmStmt(); | 
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| 78 |  | 
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| 79 | bool get_voltile() { return voltile; } | 
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| 80 | void set_voltile( bool newValue ) { voltile = newValue; } | 
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| 81 | ConstantExpr *get_instruction() { return instruction; } | 
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| 82 | void set_instruction( ConstantExpr *newValue ) { instruction = newValue; } | 
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| 83 | std::list<Expression *> &get_output() { return output; } | 
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| 84 | void set_output( const std::list<Expression *> &newValue ) { output = newValue; } | 
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| 85 | std::list<Expression *> &get_input() { return input; } | 
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| 86 | void set_input( const std::list<Expression *> &newValue ) { input = newValue; } | 
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| 87 | std::list<ConstantExpr *> &get_clobber() { return clobber; } | 
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| 88 | void set_clobber( const std::list<ConstantExpr *> &newValue ) { clobber = newValue; } | 
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| 89 | std::list<Label> &get_gotolabels() { return gotolabels; } | 
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| 90 | void set_gotolabels( const std::list<Label> &newValue ) { gotolabels = newValue; } | 
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| 91 |  | 
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| 92 | virtual AsmStmt *clone() const { return new AsmStmt( *this ); } | 
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| 93 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 94 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 95 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 96 | private: | 
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| 97 | bool voltile; | 
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| 98 | ConstantExpr *instruction; | 
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| 99 | std::list<Expression *> output, input; | 
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| 100 | std::list<ConstantExpr *> clobber; | 
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| 101 | std::list<Label> gotolabels; | 
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| 102 | }; | 
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| 103 |  | 
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| 104 | class IfStmt : public Statement { | 
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| 105 | public: | 
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| 106 | IfStmt( std::list<Label> labels, Expression *condition, Statement *thenPart, Statement *elsePart ); | 
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| 107 | IfStmt( const IfStmt &other ); | 
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| 108 | virtual ~IfStmt(); | 
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| 109 |  | 
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| 110 | Expression *get_condition() { return condition; } | 
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| 111 | void set_condition( Expression *newValue ) { condition = newValue; } | 
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| 112 | Statement *get_thenPart() { return thenPart; } | 
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| 113 | void set_thenPart( Statement *newValue ) { thenPart = newValue; } | 
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| 114 | Statement *get_elsePart() { return elsePart; } | 
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| 115 | void set_elsePart( Statement *newValue ) { elsePart = newValue; } | 
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| 116 |  | 
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| 117 | virtual IfStmt *clone() const { return new IfStmt( *this ); } | 
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| 118 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 119 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 120 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 121 | private: | 
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| 122 | Expression *condition; | 
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| 123 | Statement *thenPart; | 
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| 124 | Statement *elsePart; | 
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| 125 | }; | 
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| 126 |  | 
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| 127 | class SwitchStmt : public Statement { | 
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| 128 | public: | 
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| 129 | SwitchStmt( std::list<Label> labels, Expression *condition, std::list<Statement *> &branches ); | 
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| 130 | SwitchStmt( const SwitchStmt &other ); | 
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| 131 | virtual ~SwitchStmt(); | 
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| 132 |  | 
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| 133 | Expression *get_condition() { return condition; } | 
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| 134 | void set_condition( Expression *newValue ) { condition = newValue; } | 
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| 135 |  | 
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| 136 | std::list<Statement *> & get_branches() { return branches; } | 
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| 137 | void add_case( CaseStmt * ); | 
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| 138 |  | 
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| 139 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 140 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 141 |  | 
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| 142 | virtual SwitchStmt *clone() const { return new SwitchStmt( *this ); } | 
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| 143 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 144 | private: | 
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| 145 | Expression * condition; | 
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| 146 | std::list<Statement *> branches; // should be list of CaseStmt | 
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| 147 | }; | 
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| 148 |  | 
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| 149 | class ChooseStmt : public Statement { | 
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| 150 | public: | 
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| 151 | ChooseStmt( std::list<Label> labels, Expression *condition, std::list<Statement *> &branches ); | 
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| 152 | ChooseStmt( const ChooseStmt &other ); | 
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| 153 | virtual ~ChooseStmt(); | 
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| 154 |  | 
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| 155 | Expression *get_condition() { return condition; } | 
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| 156 | void set_condition( Expression *newValue ) { condition = newValue; } | 
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| 157 |  | 
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| 158 | std::list<Statement *>& get_branches() { return branches; } | 
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| 159 | void add_case( CaseStmt * ); | 
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| 160 |  | 
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| 161 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 162 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 163 |  | 
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| 164 | virtual ChooseStmt *clone() const { return new ChooseStmt( *this ); } | 
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| 165 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 166 | private: | 
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| 167 | Expression *condition; | 
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| 168 | std::list<Statement *> branches; // should be list of CaseStmt | 
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| 169 | }; | 
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| 170 |  | 
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| 171 | class FallthruStmt : public Statement { | 
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| 172 | public: | 
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| 173 | FallthruStmt( std::list<Label> labels ) : Statement( labels ) { } | 
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| 174 |  | 
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| 175 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 176 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 177 |  | 
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| 178 | virtual FallthruStmt *clone() const { return new FallthruStmt( *this ); } | 
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| 179 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 180 | }; | 
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| 181 |  | 
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| 182 | class CaseStmt : public Statement { | 
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| 183 | public: | 
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| 184 | CaseStmt( std::list<Label> labels, Expression *conditions, | 
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| 185 | std::list<Statement *> &stmts, bool isdef = false ) throw(SemanticError); | 
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| 186 | CaseStmt( const CaseStmt &other ); | 
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| 187 | virtual ~CaseStmt(); | 
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| 188 |  | 
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| 189 | static CaseStmt * makeDefault( std::list<Label> labels = std::list<Label>(), | 
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| 190 | std::list<Statement *> stmts = std::list<Statement *>() ); | 
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| 191 |  | 
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| 192 | bool isDefault() const { return _isDefault; } | 
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| 193 | void set_default(bool b) { _isDefault = b; } | 
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| 194 |  | 
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| 195 | Expression * &get_condition() { return condition; } | 
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| 196 | void set_condition( Expression *newValue ) { condition = newValue; } | 
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| 197 |  | 
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| 198 | std::list<Statement *> &get_statements() { return stmts; } | 
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| 199 | void set_statements( std::list<Statement *> &newValue ) { stmts = newValue; } | 
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| 200 |  | 
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| 201 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 202 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 203 |  | 
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| 204 | virtual CaseStmt *clone() const { return new CaseStmt( *this ); } | 
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| 205 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 206 | private: | 
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| 207 | Expression * condition; | 
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| 208 | std::list<Statement *> stmts; | 
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| 209 | bool _isDefault; | 
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| 210 | }; | 
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| 211 |  | 
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| 212 | class WhileStmt : public Statement { | 
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| 213 | public: | 
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| 214 | WhileStmt( std::list<Label> labels, Expression *condition, | 
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| 215 | Statement *body, bool isDoWhile = false ); | 
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| 216 | WhileStmt( const WhileStmt &other ); | 
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| 217 | virtual ~WhileStmt(); | 
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| 218 |  | 
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| 219 | Expression *get_condition() { return condition; } | 
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| 220 | void set_condition( Expression *newValue ) { condition = newValue; } | 
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| 221 | Statement *get_body() { return body; } | 
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| 222 | void set_body( Statement *newValue ) { body = newValue; } | 
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| 223 | bool get_isDoWhile() { return isDoWhile; } | 
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| 224 | void set_isDoWhile( bool newValue ) { isDoWhile = newValue; } | 
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| 225 |  | 
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| 226 | virtual WhileStmt *clone() const { return new WhileStmt( *this ); } | 
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| 227 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 228 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 229 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 230 | private: | 
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| 231 | Expression *condition; | 
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| 232 | Statement *body; | 
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| 233 | bool isDoWhile; | 
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| 234 | }; | 
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| 235 |  | 
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| 236 | class ForStmt : public Statement { | 
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| 237 | public: | 
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| 238 | ForStmt( std::list<Label> labels, std::list<Statement *> initialization, | 
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| 239 | Expression *condition = 0, Expression *increment = 0, Statement *body = 0 ); | 
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| 240 | ForStmt( const ForStmt &other ); | 
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| 241 | virtual ~ForStmt(); | 
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| 242 |  | 
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| 243 | std::list<Statement *> &get_initialization() { return initialization; } | 
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| 244 | void set_initialization( std::list<Statement *> newValue ) { initialization = newValue; } | 
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| 245 | Expression *get_condition() { return condition; } | 
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| 246 | void set_condition( Expression *newValue ) { condition = newValue; } | 
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| 247 | Expression *get_increment() { return increment; } | 
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| 248 | void set_increment( Expression *newValue ) { increment = newValue; } | 
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| 249 | Statement *get_body() { return body; } | 
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| 250 | void set_body( Statement *newValue ) { body = newValue; } | 
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| 251 |  | 
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| 252 | virtual ForStmt *clone() const { return new ForStmt( *this ); } | 
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| 253 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 254 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 255 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 256 | private: | 
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| 257 | std::list<Statement *> initialization; | 
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| 258 | Expression *condition; | 
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| 259 | Expression *increment; | 
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| 260 | Statement *body; | 
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| 261 | }; | 
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| 262 |  | 
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| 263 | class BranchStmt : public Statement { | 
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| 264 | public: | 
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| 265 | enum Type { Goto = 0, Break, Continue }; | 
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| 266 |  | 
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| 267 | BranchStmt( std::list<Label> labels, Label target, Type ) throw (SemanticError); | 
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| 268 | BranchStmt( std::list<Label> labels, Expression *computedTarget, Type ) throw (SemanticError); | 
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| 269 |  | 
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| 270 | Label get_originalTarget() { return originalTarget; } | 
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| 271 | Label get_target() { return target; } | 
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| 272 | void set_target( Label newValue ) { target = newValue; } | 
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| 273 |  | 
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| 274 | Expression *get_computedTarget() { return computedTarget; } | 
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| 275 | void set_target( Expression * newValue ) { computedTarget = newValue; } | 
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| 276 |  | 
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| 277 | Type get_type() { return type; } | 
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| 278 | const char *get_typename() { return brType[ type ]; } | 
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| 279 |  | 
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| 280 | virtual BranchStmt *clone() const { return new BranchStmt( *this ); } | 
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| 281 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 282 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 283 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 284 | private: | 
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| 285 | static const char *brType[]; | 
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| 286 | Label originalTarget;  // can give better error messages if we remember the label name that the user entered | 
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| 287 | Label target; | 
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| 288 | Expression *computedTarget; | 
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| 289 | Type type; | 
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| 290 | }; | 
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| 291 |  | 
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| 292 | class ReturnStmt : public Statement { | 
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| 293 | public: | 
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| 294 | ReturnStmt( std::list<Label> labels, Expression *expr, bool throwP = false ); | 
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| 295 | ReturnStmt( const ReturnStmt &other ); | 
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| 296 | virtual ~ReturnStmt(); | 
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| 297 |  | 
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| 298 | Expression *get_expr() { return expr; } | 
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| 299 | void set_expr( Expression *newValue ) { expr = newValue; } | 
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| 300 |  | 
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| 301 | virtual ReturnStmt *clone() const { return new ReturnStmt( *this ); } | 
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| 302 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 303 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 304 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 305 | private: | 
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| 306 | Expression *expr; | 
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| 307 | bool isThrow; | 
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| 308 | }; | 
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| 309 |  | 
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| 310 |  | 
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| 311 | class NullStmt : public CompoundStmt { | 
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| 312 | public: | 
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| 313 | NullStmt(); | 
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| 314 | NullStmt( std::list<Label> labels ); | 
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| 315 |  | 
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| 316 | virtual NullStmt *clone() const { return new NullStmt( *this ); } | 
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| 317 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 318 | virtual NullStmt *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 319 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 320 |  | 
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| 321 | private: | 
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| 322 | }; | 
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| 323 |  | 
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| 324 | class TryStmt : public Statement { | 
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| 325 | public: | 
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| 326 | TryStmt( std::list<Label> labels, CompoundStmt *tryBlock, std::list<Statement *> &handlers, FinallyStmt *finallyBlock = 0 ); | 
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| 327 | TryStmt( const TryStmt &other ); | 
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| 328 | virtual ~TryStmt(); | 
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| 329 |  | 
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| 330 | CompoundStmt *get_block() const { return block; } | 
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| 331 | void set_block( CompoundStmt *newValue ) { block = newValue; } | 
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| 332 | std::list<Statement *>& get_catchers() { return handlers; } | 
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| 333 |  | 
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| 334 | FinallyStmt *get_finally() const { return finallyBlock; } | 
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| 335 | void set_finally( FinallyStmt *newValue ) { finallyBlock = newValue; } | 
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| 336 |  | 
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| 337 | virtual TryStmt *clone() const { return new TryStmt( *this ); } | 
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| 338 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 339 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 340 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 341 |  | 
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| 342 | private: | 
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| 343 | CompoundStmt *block; | 
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| 344 | std::list<Statement *> handlers; | 
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| 345 | FinallyStmt *finallyBlock; | 
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| 346 | }; | 
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| 347 |  | 
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| 348 | class CatchStmt : public Statement { | 
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| 349 | public: | 
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| 350 | CatchStmt( std::list<Label> labels, Declaration *decl, Statement *body, bool isCatchRest = false ); | 
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| 351 | CatchStmt( const CatchStmt &other ); | 
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| 352 | virtual ~CatchStmt(); | 
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| 353 |  | 
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| 354 | Declaration *get_decl() { return decl; } | 
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| 355 | void set_decl( Declaration *newValue ) { decl = newValue; } | 
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| 356 |  | 
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| 357 | Statement *get_body() { return body; } | 
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| 358 | void set_body( Statement *newValue ) { body = newValue; } | 
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| 359 |  | 
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| 360 | virtual CatchStmt *clone() const { return new CatchStmt( *this ); } | 
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| 361 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 362 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 363 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 364 |  | 
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| 365 | private: | 
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| 366 | Declaration *decl; | 
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| 367 | Statement *body; | 
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| 368 | bool catchRest; | 
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| 369 | }; | 
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| 370 |  | 
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| 371 | class FinallyStmt : public Statement { | 
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| 372 | public: | 
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| 373 | FinallyStmt( std::list<Label> labels, CompoundStmt *block ); | 
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| 374 | FinallyStmt( const FinallyStmt &other ); | 
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| 375 | virtual ~FinallyStmt(); | 
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| 376 |  | 
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| 377 | CompoundStmt *get_block() const { return block; } | 
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| 378 | void set_block( CompoundStmt *newValue ) { block = newValue; } | 
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| 379 |  | 
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| 380 | virtual FinallyStmt *clone() const { return new FinallyStmt( *this ); } | 
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| 381 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 382 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 383 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 384 | private: | 
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| 385 | CompoundStmt *block; | 
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| 386 | }; | 
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| 387 |  | 
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| 388 |  | 
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| 389 | // represents a declaration that occurs as part of a compound statement | 
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| 390 | class DeclStmt : public Statement { | 
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| 391 | public: | 
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| 392 | DeclStmt( std::list<Label> labels, Declaration *decl ); | 
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| 393 | DeclStmt( const DeclStmt &other ); | 
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| 394 | virtual ~DeclStmt(); | 
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| 395 |  | 
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| 396 | Declaration *get_decl() { return decl; } | 
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| 397 | void set_decl( Declaration *newValue ) { decl = newValue; } | 
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| 398 |  | 
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| 399 | virtual DeclStmt *clone() const { return new DeclStmt( *this ); } | 
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| 400 | virtual void accept( Visitor &v ) { v.visit( this ); } | 
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| 401 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } | 
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| 402 | virtual void print( std::ostream &os, int indent = 0 ) const; | 
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| 403 | private: | 
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| 404 | Declaration *decl; | 
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| 405 | }; | 
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| 406 |  | 
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| 407 | std::ostream & operator<<( std::ostream & out, Statement * statement ); | 
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| 408 |  | 
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| 409 | #endif // STATEMENT_H | 
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| 410 |  | 
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| 411 | // Local Variables: // | 
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| 412 | // tab-width: 4 // | 
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| 413 | // mode: c++ // | 
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| 414 | // compile-command: "make install" // | 
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| 415 | // End: // | 
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