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 : Mon May 18 10:57:40 2015
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13 | // Update Count : 2
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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 |
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31 | virtual Statement *clone() const = 0;
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32 | virtual void accept( Visitor &v ) = 0;
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33 | virtual Statement *acceptMutator( Mutator &m ) = 0;
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34 | virtual void print( std::ostream &os, int indent = 0 );
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35 | protected:
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36 | std::list<Label> labels;
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37 | };
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38 |
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39 | class CompoundStmt : public Statement {
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40 | public:
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41 | CompoundStmt( std::list<Label> labels );
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42 | CompoundStmt( const CompoundStmt &other );
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43 | virtual ~CompoundStmt();
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44 |
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45 | std::list<Statement*>& get_kids() { return kids; }
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46 |
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47 | virtual CompoundStmt *clone() const { return new CompoundStmt( *this ); }
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48 | virtual void accept( Visitor &v ) { v.visit( this ); }
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49 | virtual CompoundStmt *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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50 | virtual void print( std::ostream &os, int indent = 0 );
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51 | private:
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52 | std::list<Statement*> kids;
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53 | };
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54 |
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55 | class ExprStmt : public Statement {
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56 | public:
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57 | ExprStmt( std::list<Label> labels, Expression *expr );
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58 | virtual ~ExprStmt();
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59 |
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60 | Expression *get_expr() { return expr; }
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61 | void set_expr( Expression *newValue ) { expr = newValue; }
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62 |
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63 | virtual ExprStmt *clone() const { return new ExprStmt( *this ); }
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64 | virtual void accept( Visitor &v ) { v.visit( this ); }
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65 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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66 | virtual void print( std::ostream &os, int indent = 0 );
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67 | private:
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68 | Expression *expr;
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69 | };
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70 |
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71 | class IfStmt : public Statement {
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72 | public:
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73 | IfStmt( std::list<Label> labels, Expression *condition, Statement *thenPart, Statement *elsePart );
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74 | virtual ~IfStmt();
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75 |
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76 | Expression *get_condition() { return condition; }
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77 | void set_condition( Expression *newValue ) { condition = newValue; }
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78 | Statement *get_thenPart() { return thenPart; }
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79 | void set_thenPart( Statement *newValue ) { thenPart = newValue; }
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80 | Statement *get_elsePart() { return elsePart; }
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81 | void set_elsePart( Statement *newValue ) { elsePart = newValue; }
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82 |
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83 | virtual IfStmt *clone() const { return new IfStmt( *this ); }
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84 | virtual void accept( Visitor &v ) { v.visit( this ); }
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85 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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86 | virtual void print( std::ostream &os, int indent = 0 );
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87 | private:
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88 | Expression *condition;
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89 | Statement *thenPart;
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90 | Statement *elsePart;
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91 | };
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92 |
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93 | class SwitchStmt : public Statement {
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94 | public:
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95 | SwitchStmt( std::list<Label> labels, Expression *condition, std::list<Statement *> &branches );
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96 | virtual ~SwitchStmt();
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97 |
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98 | Expression *get_condition() { return condition; }
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99 | void set_condition( Expression *newValue ) { condition = newValue; }
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100 |
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101 | std::list<Statement *>& get_branches() { return branches; }
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102 | void add_case( CaseStmt * );
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103 |
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104 | virtual void accept( Visitor &v ) { v.visit( this ); }
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105 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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106 |
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107 | virtual SwitchStmt *clone() const { return new SwitchStmt( *this ); }
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108 | virtual void print( std::ostream &os, int indent = 0 );
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109 | private:
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110 | Expression * condition;
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111 | std::list<Statement *> branches; // should be list of CaseStmt
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112 | };
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113 |
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114 | class ChooseStmt : public Statement {
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115 | public:
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116 | ChooseStmt( std::list<Label> labels, Expression *condition, std::list<Statement *> &branches );
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117 | virtual ~ChooseStmt();
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118 |
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119 | Expression *get_condition() { return condition; }
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120 | void set_condition( Expression *newValue ) { condition = newValue; }
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121 |
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122 | std::list<Statement *>& get_branches() { return branches; }
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123 | void add_case( CaseStmt * );
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124 |
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125 | virtual void accept( Visitor &v ) { v.visit( this ); }
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126 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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127 |
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128 | virtual ChooseStmt *clone() const { return new ChooseStmt( *this ); }
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129 | virtual void print( std::ostream &os, int indent = 0 );
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130 | private:
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131 | Expression *condition;
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132 | std::list<Statement *> branches; // should be list of CaseStmt
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133 | };
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134 |
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135 | class FallthruStmt : public Statement {
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136 | public:
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137 | FallthruStmt( std::list<Label> labels ) : Statement( labels ) { }
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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 FallthruStmt *clone() const { return new FallthruStmt( *this ); }
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143 | virtual void print( std::ostream &os, int indent = 0 );
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144 | };
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145 |
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146 | class CaseStmt : public Statement {
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147 | public:
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148 | CaseStmt( std::list<Label> labels, Expression *conditions,
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149 | std::list<Statement *> &stmts, bool isdef = false ) throw(SemanticError);
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150 | virtual ~CaseStmt();
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151 |
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152 | bool isDefault() { return _isDefault; }
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153 | void set_default(bool b) { _isDefault = b; }
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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_statements() { return stmts; }
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159 | void set_statements( std::list<Statement *> &newValue ) { stmts = newValue; }
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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 CaseStmt *clone() const { return new CaseStmt( *this ); }
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165 | virtual void print( std::ostream &os, int indent = 0 );
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166 | private:
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167 | Expression * condition;
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168 | std::list<Statement *> stmts;
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169 | bool _isDefault;
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170 | };
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171 |
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172 | class WhileStmt : public Statement {
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173 | public:
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174 | WhileStmt( std::list<Label> labels, Expression *condition,
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175 | Statement *body, bool isDoWhile = false );
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176 | virtual ~WhileStmt();
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177 |
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178 | Expression *get_condition() { return condition; }
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179 | void set_condition( Expression *newValue ) { condition = newValue; }
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180 | Statement *get_body() { return body; }
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181 | void set_body( Statement *newValue ) { body = newValue; }
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182 | bool get_isDoWhile() { return isDoWhile; }
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183 | void set_isDoWhile( bool newValue ) { isDoWhile = newValue; }
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184 |
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185 | virtual WhileStmt *clone() const { return new WhileStmt( *this ); }
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186 | virtual void accept( Visitor &v ) { v.visit( this ); }
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187 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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188 | virtual void print( std::ostream &os, int indent = 0 );
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189 | private:
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190 | Expression *condition;
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191 | Statement *body;
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192 | bool isDoWhile;
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193 | };
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194 |
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195 | class ForStmt : public Statement {
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196 | public:
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197 | ForStmt( std::list<Label> labels, Statement *initialization = 0,
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198 | Expression *condition = 0, Expression *increment = 0, Statement *body = 0 );
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199 | virtual ~ForStmt();
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200 |
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201 | Statement *get_initialization() { return initialization; }
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202 | void set_initialization( Statement *newValue ) { initialization = newValue; }
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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 | Expression *get_increment() { return increment; }
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206 | void set_increment( Expression *newValue ) { increment = newValue; }
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207 | Statement *get_body() { return body; }
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208 | void set_body( Statement *newValue ) { body = newValue; }
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209 |
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210 | virtual ForStmt *clone() const { return new ForStmt( *this ); }
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211 | virtual void accept( Visitor &v ) { v.visit( this ); }
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212 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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213 | virtual void print( std::ostream &os, int indent = 0 );
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214 | private:
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215 | Statement *initialization;
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216 | Expression *condition;
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217 | Expression *increment;
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218 | Statement *body;
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219 | };
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220 |
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221 | class BranchStmt : public Statement {
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222 | public:
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223 | enum Type { Goto = 0 , Break, Continue };
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224 |
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225 | BranchStmt( std::list<Label> labels, Label target, Type ) throw (SemanticError);
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226 | BranchStmt( std::list<Label> labels, Expression *computedTarget, Type ) throw (SemanticError);
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227 | virtual ~BranchStmt() {}
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228 |
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229 | Label get_target() { return target; }
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230 | void set_target( Label newValue ) { target = newValue; }
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231 |
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232 | Expression *get_computedTarget() { return computedTarget; }
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233 | void set_target( Expression * newValue ) { computedTarget = newValue; }
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234 |
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235 | Type get_type() { return type; }
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236 | const char *get_typename() { return brType[ type ]; }
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237 |
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238 | virtual BranchStmt *clone() const { return new BranchStmt( *this ); }
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239 | virtual void accept( Visitor &v ) { v.visit( this ); }
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240 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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241 | virtual void print( std::ostream &os, int indent = 0 );
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242 | private:
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243 | static const char *brType[];
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244 | Label target;
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245 | Expression *computedTarget;
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246 | Type type;
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247 | };
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248 |
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249 | class ReturnStmt : public Statement {
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250 | public:
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251 | ReturnStmt( std::list<Label> labels, Expression *expr, bool throwP = false );
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252 | virtual ~ReturnStmt();
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253 |
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254 | Expression *get_expr() { return expr; }
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255 | void set_expr( Expression *newValue ) { expr = newValue; }
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256 |
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257 | virtual ReturnStmt *clone() const { return new ReturnStmt( *this ); }
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258 | virtual void accept( Visitor &v ) { v.visit( this ); }
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259 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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260 | virtual void print( std::ostream &os, int indent = 0 );
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261 | private:
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262 | Expression *expr;
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263 | bool isThrow;
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264 | };
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265 |
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266 |
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267 | class NullStmt : public CompoundStmt {
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268 | public:
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269 | NullStmt();
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270 | NullStmt( std::list<Label> labels );
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271 | virtual ~NullStmt();
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272 |
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273 | virtual NullStmt *clone() const { return new NullStmt( *this ); }
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274 | virtual void accept( Visitor &v ) { v.visit( this ); }
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275 | virtual NullStmt *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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276 | virtual void print( std::ostream &os, int indent = 0 );
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277 |
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278 | private:
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279 | };
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280 |
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281 | class TryStmt : public Statement {
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282 | public:
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283 | TryStmt( std::list<Label> labels, CompoundStmt *tryBlock, std::list<Statement *> &handlers, FinallyStmt *finallyBlock = 0 );
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284 | TryStmt( const TryStmt &other );
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285 | virtual ~TryStmt();
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286 |
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287 | CompoundStmt *get_block() const { return block; }
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288 | void set_block( CompoundStmt *newValue ) { block = newValue; }
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289 | std::list<Statement *>& get_catchers() { return handlers; }
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290 |
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291 | FinallyStmt *get_finally() const { return finallyBlock; }
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292 | void set_finally( FinallyStmt *newValue ) { finallyBlock = newValue; }
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293 |
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294 | virtual TryStmt *clone() const { return new TryStmt( *this ); }
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295 | virtual void accept( Visitor &v ) { v.visit( this ); }
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296 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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297 | virtual void print( std::ostream &os, int indent = 0 );
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298 |
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299 | private:
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300 | CompoundStmt *block;
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301 | std::list<Statement *> handlers;
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302 | FinallyStmt *finallyBlock;
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303 | };
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304 |
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305 | class CatchStmt : public Statement {
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306 | public:
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307 | CatchStmt( std::list<Label> labels, Declaration *decl, Statement *body, bool isCatchRest = false );
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308 | virtual ~CatchStmt();
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309 |
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310 | Declaration *get_decl() { return decl; }
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311 | void set_decl( Declaration *newValue ) { decl = newValue; }
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312 |
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313 | Statement *get_body() { return body; }
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314 | void set_body( Statement *newValue ) { body = newValue; }
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315 |
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316 | virtual CatchStmt *clone() const { return new CatchStmt( *this ); }
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317 | virtual void accept( Visitor &v ) { v.visit( this ); }
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318 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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319 | virtual void print( std::ostream &os, int indent = 0 );
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320 |
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321 | private:
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322 | Declaration *decl;
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323 | Statement *body;
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324 | bool catchRest;
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325 | };
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326 |
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327 | class FinallyStmt : public Statement {
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328 | public:
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329 | FinallyStmt( std::list<Label> labels, CompoundStmt *block );
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330 | virtual ~FinallyStmt();
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331 |
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332 | CompoundStmt *get_block() const { return block; }
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333 | void set_block( CompoundStmt *newValue ) { block = newValue; }
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334 |
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335 | virtual FinallyStmt *clone() const { return new FinallyStmt( *this ); }
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336 | virtual void accept( Visitor &v ) { v.visit( this ); }
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337 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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338 | virtual void print( std::ostream &os, int indent = 0 );
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339 | private:
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340 | CompoundStmt *block;
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341 | };
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342 |
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343 |
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344 | // represents a declaration that occurs as part of a compound statement
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345 | class DeclStmt : public Statement {
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346 | public:
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347 | DeclStmt( std::list<Label> labels, Declaration *decl );
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348 | DeclStmt( const DeclStmt &other );
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349 | virtual ~DeclStmt();
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350 |
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351 | Declaration *get_decl() { return decl; }
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352 | void set_decl( Declaration *newValue ) { decl = newValue; }
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353 |
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354 | virtual DeclStmt *clone() const { return new DeclStmt( *this ); }
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355 | virtual void accept( Visitor &v ) { v.visit( this ); }
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356 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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357 | virtual void print( std::ostream &os, int indent = 0 );
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358 | private:
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359 | Declaration *decl;
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360 | };
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361 |
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362 | #endif // STATEMENT_H
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363 |
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364 | // Local Variables: //
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365 | // tab-width: 4 //
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366 | // mode: c++ //
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367 | // compile-command: "make install" //
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368 | // End: //
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