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 : Peter A. Buhr |
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12 | // Last Modified On : Thu Mar 8 14:53:02 2018 |
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13 | // Update Count : 78 |
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14 | // |
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15 | |
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16 | #pragma once |
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17 | |
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18 | #include <iosfwd> // for ostream |
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19 | #include <list> // for list |
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20 | #include <memory> // for allocator |
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21 | #include <vector> // for vector |
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22 | |
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23 | #include "BaseSyntaxNode.h" // for BaseSyntaxNode |
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24 | #include "Common/SemanticError.h" // for SemanticError |
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25 | #include "Label.h" // for Label |
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26 | #include "Mutator.h" // for Mutator |
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27 | #include "Visitor.h" // for Visitor |
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28 | |
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29 | class CatchStmt; |
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30 | class ConstantExpr; |
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31 | class Declaration; |
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32 | class Expression; |
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33 | class FinallyStmt; |
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34 | |
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35 | class Statement : public BaseSyntaxNode { |
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36 | public: |
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37 | std::list<Label> labels; |
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38 | |
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39 | Statement( const std::list<Label> & labels = {} ); |
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40 | virtual ~Statement(); |
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41 | |
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42 | std::list<Label> & get_labels() { return labels; } |
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43 | const std::list<Label> & get_labels() const { return labels; } |
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44 | |
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45 | virtual Statement *clone() const override = 0; |
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46 | virtual void accept( Visitor &v ) override = 0; |
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47 | virtual Statement *acceptMutator( Mutator &m ) override = 0; |
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48 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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49 | }; |
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50 | |
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51 | class CompoundStmt : public Statement { |
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52 | public: |
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53 | std::list<Statement*> kids; |
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54 | |
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55 | CompoundStmt(); |
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56 | CompoundStmt( std::list<Statement *> stmts ); |
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57 | CompoundStmt( const CompoundStmt &other ); |
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58 | virtual ~CompoundStmt(); |
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59 | |
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60 | std::list<Statement*>& get_kids() { return kids; } |
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61 | void push_back( Statement * stmt ) { kids.push_back( stmt ); } |
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62 | void push_front( Statement * stmt ) { kids.push_front( stmt ); } |
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63 | |
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64 | virtual CompoundStmt *clone() const override { return new CompoundStmt( *this ); } |
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65 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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66 | virtual CompoundStmt *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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67 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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68 | }; |
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69 | |
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70 | class NullStmt : public Statement { |
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71 | public: |
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72 | NullStmt( const std::list<Label> & labels = {} ); |
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73 | |
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74 | virtual NullStmt *clone() const override { return new NullStmt( *this ); } |
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75 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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76 | virtual NullStmt *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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77 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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78 | }; |
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79 | |
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80 | class ExprStmt : public Statement { |
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81 | public: |
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82 | Expression *expr; |
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83 | |
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84 | ExprStmt( Expression *expr ); |
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85 | ExprStmt( const ExprStmt &other ); |
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86 | virtual ~ExprStmt(); |
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87 | |
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88 | Expression *get_expr() { return expr; } |
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89 | void set_expr( Expression *newValue ) { expr = newValue; } |
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90 | |
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91 | virtual ExprStmt *clone() const override { return new ExprStmt( *this ); } |
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92 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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93 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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94 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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95 | }; |
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96 | |
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97 | class AsmStmt : public Statement { |
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98 | public: |
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99 | bool voltile; |
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100 | Expression *instruction; |
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101 | std::list<Expression *> output, input; |
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102 | std::list<ConstantExpr *> clobber; |
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103 | std::list<Label> gotolabels; |
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104 | |
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105 | AsmStmt( bool voltile, Expression *instruction, std::list<Expression *> output, std::list<Expression *> input, std::list<ConstantExpr *> clobber, std::list<Label> gotolabels ); |
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106 | AsmStmt( const AsmStmt &other ); |
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107 | virtual ~AsmStmt(); |
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108 | |
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109 | bool get_voltile() { return voltile; } |
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110 | void set_voltile( bool newValue ) { voltile = newValue; } |
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111 | Expression * get_instruction() { return instruction; } |
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112 | void set_instruction( Expression * newValue ) { instruction = newValue; } |
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113 | std::list<Expression *> & get_output() { return output; } |
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114 | void set_output( const std::list<Expression *> & newValue ) { output = newValue; } |
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115 | std::list<Expression *> & get_input() { return input; } |
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116 | void set_input( const std::list<Expression *> &newValue ) { input = newValue; } |
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117 | std::list<ConstantExpr *> & get_clobber() { return clobber; } |
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118 | void set_clobber( const std::list<ConstantExpr *> &newValue ) { clobber = newValue; } |
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119 | std::list<Label> & get_gotolabels() { return gotolabels; } |
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120 | void set_gotolabels( const std::list<Label> &newValue ) { gotolabels = newValue; } |
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121 | |
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122 | virtual AsmStmt * clone() const { return new AsmStmt( *this ); } |
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123 | virtual void accept( Visitor & v ) { v.visit( this ); } |
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124 | virtual Statement * acceptMutator( Mutator & m ) { return m.mutate( this ); } |
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125 | virtual void print( std::ostream & os, Indenter indent = {} ) const; |
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126 | }; |
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127 | |
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128 | class DirectiveStmt : public Statement { |
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129 | public: |
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130 | std::string directive; |
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131 | |
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132 | DirectiveStmt( const std::string & ); |
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133 | virtual ~DirectiveStmt(){} |
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134 | |
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135 | virtual DirectiveStmt * clone() const { return new DirectiveStmt( *this ); } |
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136 | virtual void accept( Visitor & v ) { v.visit( this ); } |
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137 | virtual Statement * acceptMutator( Mutator & m ) { return m.mutate( this ); } |
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138 | virtual void print( std::ostream & os, Indenter indent = {} ) const; |
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139 | }; |
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140 | |
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141 | class IfStmt : public Statement { |
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142 | public: |
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143 | Expression *condition; |
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144 | Statement *thenPart; |
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145 | Statement *elsePart; |
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146 | std::list<Statement *> initialization; |
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147 | |
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148 | IfStmt( Expression *condition, Statement *thenPart, Statement *elsePart, |
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149 | std::list<Statement *> initialization = std::list<Statement *>() ); |
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150 | IfStmt( const IfStmt &other ); |
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151 | virtual ~IfStmt(); |
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152 | |
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153 | std::list<Statement *> &get_initialization() { return initialization; } |
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154 | Expression *get_condition() { return condition; } |
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155 | void set_condition( Expression *newValue ) { condition = newValue; } |
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156 | Statement *get_thenPart() { return thenPart; } |
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157 | void set_thenPart( Statement *newValue ) { thenPart = newValue; } |
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158 | Statement *get_elsePart() { return elsePart; } |
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159 | void set_elsePart( Statement *newValue ) { elsePart = newValue; } |
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160 | |
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161 | virtual IfStmt *clone() const override { return new IfStmt( *this ); } |
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162 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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163 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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164 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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165 | }; |
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166 | |
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167 | class SwitchStmt : public Statement { |
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168 | public: |
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169 | Expression * condition; |
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170 | std::list<Statement *> statements; |
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171 | |
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172 | SwitchStmt( Expression *condition, const std::list<Statement *> &statements ); |
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173 | SwitchStmt( const SwitchStmt &other ); |
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174 | virtual ~SwitchStmt(); |
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175 | |
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176 | Expression *get_condition() { return condition; } |
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177 | void set_condition( Expression *newValue ) { condition = newValue; } |
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178 | |
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179 | std::list<Statement *> & get_statements() { return statements; } |
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180 | |
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181 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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182 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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183 | |
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184 | virtual SwitchStmt *clone() const override { return new SwitchStmt( *this ); } |
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185 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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186 | |
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187 | }; |
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188 | |
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189 | class CaseStmt : public Statement { |
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190 | public: |
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191 | Expression * condition; |
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192 | std::list<Statement *> stmts; |
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193 | |
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194 | CaseStmt( Expression *conditions, const std::list<Statement *> &stmts, bool isdef = false ) throw (SemanticErrorException); |
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195 | CaseStmt( const CaseStmt &other ); |
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196 | virtual ~CaseStmt(); |
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197 | |
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198 | static CaseStmt * makeDefault( const std::list<Label> & labels = {}, std::list<Statement *> stmts = std::list<Statement *>() ); |
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199 | |
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200 | bool isDefault() const { return _isDefault; } |
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201 | void set_default(bool b) { _isDefault = b; } |
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202 | |
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203 | Expression * &get_condition() { return condition; } |
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204 | void set_condition( Expression *newValue ) { condition = newValue; } |
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205 | |
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206 | std::list<Statement *> &get_statements() { return stmts; } |
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207 | void set_statements( std::list<Statement *> &newValue ) { stmts = newValue; } |
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208 | |
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209 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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210 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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211 | |
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212 | virtual CaseStmt *clone() const override { return new CaseStmt( *this ); } |
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213 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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214 | private: |
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215 | bool _isDefault; |
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216 | }; |
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217 | |
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218 | class WhileStmt : public Statement { |
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219 | public: |
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220 | Expression *condition; |
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221 | Statement *body; |
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222 | bool isDoWhile; |
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223 | |
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224 | WhileStmt( Expression *condition, |
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225 | Statement *body, bool isDoWhile = false ); |
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226 | WhileStmt( const WhileStmt &other ); |
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227 | virtual ~WhileStmt(); |
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228 | |
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229 | Expression *get_condition() { return condition; } |
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230 | void set_condition( Expression *newValue ) { condition = newValue; } |
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231 | Statement *get_body() { return body; } |
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232 | void set_body( Statement *newValue ) { body = newValue; } |
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233 | bool get_isDoWhile() { return isDoWhile; } |
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234 | void set_isDoWhile( bool newValue ) { isDoWhile = newValue; } |
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235 | |
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236 | virtual WhileStmt *clone() const override { return new WhileStmt( *this ); } |
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237 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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238 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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239 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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240 | }; |
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241 | |
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242 | class ForStmt : public Statement { |
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243 | public: |
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244 | std::list<Statement *> initialization; |
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245 | Expression *condition; |
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246 | Expression *increment; |
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247 | Statement *body; |
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248 | |
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249 | ForStmt( std::list<Statement *> initialization, |
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250 | Expression *condition = 0, Expression *increment = 0, Statement *body = 0 ); |
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251 | ForStmt( const ForStmt &other ); |
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252 | virtual ~ForStmt(); |
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253 | |
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254 | std::list<Statement *> &get_initialization() { return initialization; } |
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255 | Expression *get_condition() { return condition; } |
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256 | void set_condition( Expression *newValue ) { condition = newValue; } |
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257 | Expression *get_increment() { return increment; } |
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258 | void set_increment( Expression *newValue ) { increment = newValue; } |
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259 | Statement *get_body() { return body; } |
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260 | void set_body( Statement *newValue ) { body = newValue; } |
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261 | |
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262 | virtual ForStmt *clone() const override { return new ForStmt( *this ); } |
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263 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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264 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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265 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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266 | }; |
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267 | |
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268 | class BranchStmt : public Statement { |
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269 | public: |
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270 | enum Type { Goto = 0, Break, Continue, FallThrough, FallThroughDefault }; |
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271 | |
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272 | // originalTarget kept for error messages. |
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273 | const Label originalTarget; |
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274 | Label target; |
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275 | Expression *computedTarget; |
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276 | Type type; |
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277 | |
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278 | BranchStmt( Label target, Type ) throw (SemanticErrorException); |
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279 | BranchStmt( Expression *computedTarget, Type ) throw (SemanticErrorException); |
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280 | |
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281 | Label get_originalTarget() { return originalTarget; } |
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282 | Label get_target() { return target; } |
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283 | void set_target( Label newValue ) { target = newValue; } |
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284 | |
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285 | Expression *get_computedTarget() { return computedTarget; } |
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286 | void set_target( Expression * newValue ) { computedTarget = newValue; } |
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287 | |
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288 | Type get_type() { return type; } |
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289 | const char *get_typename() { return brType[ type ]; } |
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290 | |
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291 | virtual BranchStmt *clone() const override { return new BranchStmt( *this ); } |
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292 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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293 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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294 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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295 | private: |
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296 | static const char *brType[]; |
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297 | }; |
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298 | |
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299 | class ReturnStmt : public Statement { |
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300 | public: |
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301 | Expression *expr; |
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302 | |
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303 | ReturnStmt( Expression *expr ); |
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304 | ReturnStmt( const ReturnStmt &other ); |
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305 | virtual ~ReturnStmt(); |
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306 | |
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307 | Expression *get_expr() { return expr; } |
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308 | void set_expr( Expression *newValue ) { expr = newValue; } |
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309 | |
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310 | virtual ReturnStmt *clone() const override { return new ReturnStmt( *this ); } |
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311 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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312 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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313 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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314 | }; |
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315 | |
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316 | class ThrowStmt : public Statement { |
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317 | public: |
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318 | enum Kind { Terminate, Resume }; |
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319 | |
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320 | const Kind kind; |
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321 | Expression * expr; |
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322 | Expression * target; |
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323 | |
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324 | ThrowStmt( Kind kind, Expression * expr, Expression * target = nullptr ); |
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325 | ThrowStmt( const ThrowStmt &other ); |
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326 | virtual ~ThrowStmt(); |
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327 | |
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328 | Kind get_kind() { return kind; } |
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329 | Expression * get_expr() { return expr; } |
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330 | void set_expr( Expression * newExpr ) { expr = newExpr; } |
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331 | Expression * get_target() { return target; } |
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332 | void set_target( Expression * newTarget ) { target = newTarget; } |
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333 | |
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334 | virtual ThrowStmt *clone() const override { return new ThrowStmt( *this ); } |
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335 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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336 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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337 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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338 | }; |
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339 | |
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340 | class TryStmt : public Statement { |
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341 | public: |
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342 | CompoundStmt * block; |
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343 | std::list<CatchStmt *> handlers; |
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344 | FinallyStmt * finallyBlock; |
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345 | |
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346 | TryStmt( CompoundStmt *tryBlock, std::list<CatchStmt *> &handlers, FinallyStmt *finallyBlock = 0 ); |
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347 | TryStmt( const TryStmt &other ); |
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348 | virtual ~TryStmt(); |
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349 | |
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350 | CompoundStmt *get_block() const { return block; } |
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351 | void set_block( CompoundStmt *newValue ) { block = newValue; } |
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352 | std::list<CatchStmt *>& get_catchers() { return handlers; } |
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353 | |
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354 | FinallyStmt *get_finally() const { return finallyBlock; } |
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355 | void set_finally( FinallyStmt *newValue ) { finallyBlock = newValue; } |
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356 | |
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357 | virtual TryStmt *clone() const override { return new TryStmt( *this ); } |
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358 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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359 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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360 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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361 | }; |
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362 | |
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363 | class CatchStmt : public Statement { |
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364 | public: |
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365 | enum Kind { Terminate, Resume }; |
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366 | |
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367 | const Kind kind; |
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368 | Declaration *decl; |
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369 | Expression *cond; |
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370 | Statement *body; |
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371 | |
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372 | CatchStmt( Kind kind, Declaration *decl, |
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373 | Expression *cond, Statement *body ); |
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374 | CatchStmt( const CatchStmt &other ); |
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375 | virtual ~CatchStmt(); |
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376 | |
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377 | Kind get_kind() { return kind; } |
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378 | Declaration *get_decl() { return decl; } |
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379 | void set_decl( Declaration *newValue ) { decl = newValue; } |
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380 | Expression *get_cond() { return cond; } |
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381 | void set_cond( Expression *newCond ) { cond = newCond; } |
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382 | Statement *get_body() { return body; } |
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383 | void set_body( Statement *newValue ) { body = newValue; } |
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384 | |
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385 | virtual CatchStmt *clone() const override { return new CatchStmt( *this ); } |
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386 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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387 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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388 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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389 | }; |
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390 | |
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391 | class FinallyStmt : public Statement { |
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392 | public: |
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393 | CompoundStmt *block; |
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394 | |
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395 | FinallyStmt( CompoundStmt *block ); |
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396 | FinallyStmt( const FinallyStmt &other ); |
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397 | virtual ~FinallyStmt(); |
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398 | |
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399 | CompoundStmt *get_block() const { return block; } |
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400 | void set_block( CompoundStmt *newValue ) { block = newValue; } |
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401 | |
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402 | virtual FinallyStmt *clone() const override { return new FinallyStmt( *this ); } |
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403 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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404 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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405 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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406 | }; |
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407 | |
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408 | class WaitForStmt : public Statement { |
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409 | public: |
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410 | |
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411 | struct Target { |
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412 | Expression * function; |
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413 | std::list<Expression * > arguments; |
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414 | }; |
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415 | |
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416 | struct Clause { |
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417 | Target target; |
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418 | Statement * statement; |
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419 | Expression * condition; |
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420 | }; |
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421 | |
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422 | WaitForStmt(); |
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423 | WaitForStmt( const WaitForStmt & ); |
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424 | virtual ~WaitForStmt(); |
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425 | |
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426 | std::vector<Clause> clauses; |
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427 | |
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428 | struct { |
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429 | Expression * time; |
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430 | Statement * statement; |
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431 | Expression * condition; |
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432 | } timeout; |
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433 | |
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434 | struct { |
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435 | Statement * statement; |
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436 | Expression * condition; |
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437 | } orelse; |
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438 | |
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439 | virtual WaitForStmt *clone() const override { return new WaitForStmt( *this ); } |
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440 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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441 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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442 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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443 | |
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444 | }; |
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445 | |
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446 | class WithStmt : public Statement { |
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447 | public: |
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448 | std::list< Expression * > exprs; |
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449 | Statement * stmt; |
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450 | |
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451 | WithStmt( const std::list< Expression * > & exprs, Statement * stmt ); |
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452 | WithStmt( const WithStmt & other ); |
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453 | virtual ~WithStmt(); |
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454 | |
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455 | virtual WithStmt * clone() const override { return new WithStmt( *this ); } |
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456 | virtual void accept( Visitor & v ) override { v.visit( this ); } |
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457 | virtual Statement * acceptMutator( Mutator & m ) override { return m.mutate( this ); } |
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458 | virtual void print( std::ostream & os, Indenter indent = {} ) const override; |
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459 | }; |
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460 | |
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461 | |
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462 | // represents a declaration that occurs as part of a compound statement |
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463 | class DeclStmt : public Statement { |
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464 | public: |
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465 | Declaration *decl; |
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466 | |
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467 | DeclStmt( Declaration *decl ); |
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468 | DeclStmt( const DeclStmt &other ); |
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469 | virtual ~DeclStmt(); |
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470 | |
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471 | Declaration *get_decl() const { return decl; } |
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472 | void set_decl( Declaration *newValue ) { decl = newValue; } |
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473 | |
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474 | virtual DeclStmt *clone() const override { return new DeclStmt( *this ); } |
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475 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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476 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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477 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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478 | }; |
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479 | |
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480 | |
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481 | /// represents an implicit application of a constructor or destructor. Qualifiers are replaced |
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482 | /// immediately before and after the call so that qualified objects can be constructed |
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483 | /// with the same functions as unqualified objects. |
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484 | class ImplicitCtorDtorStmt : public Statement { |
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485 | public: |
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486 | // Non-owned pointer to the constructor/destructor statement |
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487 | Statement * callStmt; |
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488 | |
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489 | ImplicitCtorDtorStmt( Statement * callStmt ); |
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490 | ImplicitCtorDtorStmt( const ImplicitCtorDtorStmt & other ); |
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491 | virtual ~ImplicitCtorDtorStmt(); |
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492 | |
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493 | Statement *get_callStmt() const { return callStmt; } |
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494 | void set_callStmt( Statement * newValue ) { callStmt = newValue; } |
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495 | |
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496 | virtual ImplicitCtorDtorStmt *clone() const override { return new ImplicitCtorDtorStmt( *this ); } |
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497 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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498 | virtual Statement *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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499 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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500 | }; |
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501 | |
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502 | // Local Variables: // |
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503 | // tab-width: 4 // |
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504 | // mode: c++ // |
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505 | // compile-command: "make install" // |
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506 | // End: // |
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