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 : Andrew Beach |
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12 | // Last Modified On : Mon Jun 12 13:35:00 2017 |
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13 | // Update Count : 67 |
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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 "BaseSyntaxNode.h" |
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20 | #include "Label.h" |
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21 | #include "Mutator.h" |
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22 | #include "SynTree.h" |
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23 | #include "Type.h" |
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24 | #include "Visitor.h" |
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25 | #include "Common/SemanticError.h" |
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26 | |
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27 | class Statement : public BaseSyntaxNode { |
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28 | public: |
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29 | Statement( std::list<Label> labels ); |
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30 | virtual ~Statement(); |
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31 | |
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32 | std::list<Label> & get_labels() { return labels; } |
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33 | const std::list<Label> & get_labels() const { return labels; } |
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34 | |
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35 | virtual Statement *clone() const = 0; |
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36 | virtual void accept( Visitor &v ) = 0; |
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37 | virtual Statement *acceptMutator( Mutator &m ) = 0; |
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38 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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39 | protected: |
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40 | std::list<Label> labels; |
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41 | }; |
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42 | |
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43 | class CompoundStmt : public Statement { |
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44 | public: |
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45 | CompoundStmt( std::list<Label> labels ); |
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46 | CompoundStmt( const CompoundStmt &other ); |
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47 | virtual ~CompoundStmt(); |
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48 | |
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49 | std::list<Statement*>& get_kids() { return kids; } |
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50 | void push_back( Statement * stmt ) { kids.push_back( stmt ); } |
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51 | void push_front( Statement * stmt ) { kids.push_front( stmt ); } |
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52 | |
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53 | virtual CompoundStmt *clone() const { return new CompoundStmt( *this ); } |
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54 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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55 | virtual CompoundStmt *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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56 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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57 | private: |
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58 | std::list<Statement*> kids; |
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59 | }; |
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60 | |
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61 | class NullStmt : public CompoundStmt { |
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62 | public: |
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63 | NullStmt(); |
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64 | NullStmt( std::list<Label> labels ); |
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65 | |
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66 | virtual NullStmt *clone() const { return new NullStmt( *this ); } |
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67 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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68 | virtual NullStmt *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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69 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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70 | |
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71 | private: |
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72 | }; |
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73 | |
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74 | class ExprStmt : public Statement { |
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75 | public: |
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76 | ExprStmt( std::list<Label> labels, Expression *expr ); |
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77 | ExprStmt( const ExprStmt &other ); |
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78 | virtual ~ExprStmt(); |
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79 | |
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80 | Expression *get_expr() { return expr; } |
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81 | void set_expr( Expression *newValue ) { expr = newValue; } |
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82 | |
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83 | virtual ExprStmt *clone() const { return new ExprStmt( *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 ) const; |
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87 | private: |
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88 | Expression *expr; |
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89 | }; |
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90 | |
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91 | class AsmStmt : public Statement { |
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92 | public: |
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93 | 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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94 | AsmStmt( const AsmStmt &other ); |
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95 | virtual ~AsmStmt(); |
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96 | |
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97 | bool get_voltile() { return voltile; } |
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98 | void set_voltile( bool newValue ) { voltile = newValue; } |
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99 | ConstantExpr *get_instruction() { return instruction; } |
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100 | void set_instruction( ConstantExpr *newValue ) { instruction = newValue; } |
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101 | std::list<Expression *> &get_output() { return output; } |
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102 | void set_output( const std::list<Expression *> &newValue ) { output = newValue; } |
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103 | std::list<Expression *> &get_input() { return input; } |
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104 | void set_input( const std::list<Expression *> &newValue ) { input = newValue; } |
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105 | std::list<ConstantExpr *> &get_clobber() { return clobber; } |
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106 | void set_clobber( const std::list<ConstantExpr *> &newValue ) { clobber = newValue; } |
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107 | std::list<Label> &get_gotolabels() { return gotolabels; } |
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108 | void set_gotolabels( const std::list<Label> &newValue ) { gotolabels = newValue; } |
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109 | |
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110 | virtual AsmStmt *clone() const { return new AsmStmt( *this ); } |
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111 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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112 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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113 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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114 | private: |
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115 | bool voltile; |
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116 | ConstantExpr *instruction; |
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117 | std::list<Expression *> output, input; |
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118 | std::list<ConstantExpr *> clobber; |
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119 | std::list<Label> gotolabels; |
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120 | }; |
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121 | |
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122 | class IfStmt : public Statement { |
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123 | public: |
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124 | IfStmt( std::list<Label> labels, Expression *condition, Statement *thenPart, Statement *elsePart ); |
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125 | IfStmt( const IfStmt &other ); |
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126 | virtual ~IfStmt(); |
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127 | |
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128 | Expression *get_condition() { return condition; } |
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129 | void set_condition( Expression *newValue ) { condition = newValue; } |
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130 | Statement *get_thenPart() { return thenPart; } |
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131 | void set_thenPart( Statement *newValue ) { thenPart = newValue; } |
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132 | Statement *get_elsePart() { return elsePart; } |
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133 | void set_elsePart( Statement *newValue ) { elsePart = newValue; } |
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134 | |
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135 | virtual IfStmt *clone() const { return new IfStmt( *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, int indent = 0 ) const; |
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139 | private: |
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140 | Expression *condition; |
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141 | Statement *thenPart; |
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142 | Statement *elsePart; |
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143 | }; |
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144 | |
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145 | class SwitchStmt : public Statement { |
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146 | public: |
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147 | SwitchStmt( std::list<Label> labels, Expression *condition, std::list<Statement *> &statements ); |
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148 | SwitchStmt( const SwitchStmt &other ); |
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149 | virtual ~SwitchStmt(); |
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150 | |
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151 | Expression *get_condition() { return condition; } |
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152 | void set_condition( Expression *newValue ) { condition = newValue; } |
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153 | |
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154 | std::list<Statement *> & get_statements() { return statements; } |
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155 | |
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156 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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157 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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158 | |
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159 | virtual SwitchStmt *clone() const { return new SwitchStmt( *this ); } |
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160 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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161 | private: |
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162 | Expression * condition; |
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163 | std::list<Statement *> statements; |
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164 | }; |
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165 | |
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166 | class CaseStmt : public Statement { |
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167 | public: |
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168 | CaseStmt( std::list<Label> labels, Expression *conditions, std::list<Statement *> &stmts, bool isdef = false ) throw(SemanticError); |
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169 | CaseStmt( const CaseStmt &other ); |
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170 | virtual ~CaseStmt(); |
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171 | |
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172 | static CaseStmt * makeDefault( std::list<Label> labels = std::list<Label>(), std::list<Statement *> stmts = std::list<Statement *>() ); |
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173 | |
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174 | bool isDefault() const { return _isDefault; } |
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175 | void set_default(bool b) { _isDefault = b; } |
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176 | |
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177 | Expression * &get_condition() { return condition; } |
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178 | void set_condition( Expression *newValue ) { condition = newValue; } |
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179 | |
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180 | std::list<Statement *> &get_statements() { return stmts; } |
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181 | void set_statements( std::list<Statement *> &newValue ) { stmts = newValue; } |
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182 | |
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183 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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184 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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185 | |
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186 | virtual CaseStmt *clone() const { return new CaseStmt( *this ); } |
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187 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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188 | private: |
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189 | Expression * condition; |
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190 | std::list<Statement *> stmts; |
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191 | bool _isDefault; |
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192 | }; |
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193 | |
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194 | class WhileStmt : public Statement { |
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195 | public: |
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196 | WhileStmt( std::list<Label> labels, Expression *condition, |
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197 | Statement *body, bool isDoWhile = false ); |
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198 | WhileStmt( const WhileStmt &other ); |
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199 | virtual ~WhileStmt(); |
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200 | |
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201 | Expression *get_condition() { return condition; } |
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202 | void set_condition( Expression *newValue ) { condition = newValue; } |
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203 | Statement *get_body() { return body; } |
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204 | void set_body( Statement *newValue ) { body = newValue; } |
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205 | bool get_isDoWhile() { return isDoWhile; } |
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206 | void set_isDoWhile( bool newValue ) { isDoWhile = newValue; } |
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207 | |
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208 | virtual WhileStmt *clone() const { return new WhileStmt( *this ); } |
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209 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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210 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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211 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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212 | private: |
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213 | Expression *condition; |
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214 | Statement *body; |
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215 | bool isDoWhile; |
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216 | }; |
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217 | |
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218 | class ForStmt : public Statement { |
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219 | public: |
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220 | ForStmt( std::list<Label> labels, std::list<Statement *> initialization, |
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221 | Expression *condition = 0, Expression *increment = 0, Statement *body = 0 ); |
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222 | ForStmt( const ForStmt &other ); |
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223 | virtual ~ForStmt(); |
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224 | |
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225 | std::list<Statement *> &get_initialization() { return initialization; } |
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226 | void set_initialization( std::list<Statement *> newValue ) { initialization = newValue; } |
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227 | Expression *get_condition() { return condition; } |
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228 | void set_condition( Expression *newValue ) { condition = newValue; } |
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229 | Expression *get_increment() { return increment; } |
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230 | void set_increment( Expression *newValue ) { increment = 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 | |
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234 | virtual ForStmt *clone() const { return new ForStmt( *this ); } |
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235 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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236 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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237 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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238 | private: |
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239 | std::list<Statement *> initialization; |
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240 | Expression *condition; |
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241 | Expression *increment; |
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242 | Statement *body; |
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243 | }; |
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244 | |
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245 | class BranchStmt : public Statement { |
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246 | public: |
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247 | enum Type { Goto = 0, Break, Continue }; |
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248 | |
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249 | BranchStmt( std::list<Label> labels, Label target, Type ) throw (SemanticError); |
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250 | BranchStmt( std::list<Label> labels, Expression *computedTarget, Type ) throw (SemanticError); |
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251 | |
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252 | Label get_originalTarget() { return originalTarget; } |
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253 | Label get_target() { return target; } |
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254 | void set_target( Label newValue ) { target = newValue; } |
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255 | |
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256 | Expression *get_computedTarget() { return computedTarget; } |
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257 | void set_target( Expression * newValue ) { computedTarget = newValue; } |
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258 | |
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259 | Type get_type() { return type; } |
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260 | const char *get_typename() { return brType[ type ]; } |
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261 | |
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262 | virtual BranchStmt *clone() const { return new BranchStmt( *this ); } |
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263 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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264 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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265 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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266 | private: |
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267 | static const char *brType[]; |
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268 | Label originalTarget; // can give better error messages if we remember the label name that the user entered |
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269 | Label target; |
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270 | Expression *computedTarget; |
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271 | Type type; |
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272 | }; |
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273 | |
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274 | class ReturnStmt : public Statement { |
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275 | public: |
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276 | ReturnStmt( std::list<Label> labels, Expression *expr ); |
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277 | ReturnStmt( const ReturnStmt &other ); |
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278 | virtual ~ReturnStmt(); |
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279 | |
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280 | Expression *get_expr() { return expr; } |
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281 | void set_expr( Expression *newValue ) { expr = newValue; } |
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282 | |
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283 | virtual ReturnStmt *clone() const { return new ReturnStmt( *this ); } |
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284 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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285 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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286 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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287 | private: |
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288 | Expression *expr; |
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289 | }; |
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290 | |
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291 | class ThrowStmt : public Statement { |
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292 | public: |
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293 | enum Kind { Terminate, Resume }; |
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294 | |
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295 | ThrowStmt( std::list<Label> labels, Kind kind, Expression * expr, Expression * target = nullptr ); |
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296 | ThrowStmt( const ThrowStmt &other ); |
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297 | virtual ~ThrowStmt(); |
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298 | |
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299 | Kind get_kind() { return kind; } |
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300 | Expression * get_expr() { return expr; } |
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301 | void set_expr( Expression * newExpr ) { expr = newExpr; } |
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302 | Expression * get_target() { return target; } |
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303 | void set_target( Expression * newTarget ) { target = newTarget; } |
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304 | |
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305 | virtual ThrowStmt *clone() const { return new ThrowStmt( *this ); } |
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306 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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307 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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308 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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309 | private: |
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310 | Kind kind; |
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311 | Expression * expr; |
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312 | Expression * target; |
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313 | }; |
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314 | |
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315 | class TryStmt : public Statement { |
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316 | public: |
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317 | TryStmt( std::list<Label> labels, CompoundStmt *tryBlock, std::list<CatchStmt *> &handlers, FinallyStmt *finallyBlock = 0 ); |
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318 | TryStmt( const TryStmt &other ); |
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319 | virtual ~TryStmt(); |
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320 | |
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321 | CompoundStmt *get_block() const { return block; } |
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322 | void set_block( CompoundStmt *newValue ) { block = newValue; } |
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323 | std::list<CatchStmt *>& get_catchers() { return handlers; } |
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324 | |
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325 | FinallyStmt *get_finally() const { return finallyBlock; } |
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326 | void set_finally( FinallyStmt *newValue ) { finallyBlock = newValue; } |
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327 | |
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328 | virtual TryStmt *clone() const { return new TryStmt( *this ); } |
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329 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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330 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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331 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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332 | |
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333 | private: |
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334 | CompoundStmt *block; |
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335 | std::list<CatchStmt *> handlers; |
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336 | FinallyStmt *finallyBlock; |
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337 | }; |
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338 | |
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339 | class CatchStmt : public Statement { |
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340 | public: |
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341 | enum Kind { Terminate, Resume }; |
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342 | |
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343 | CatchStmt( std::list<Label> labels, Kind kind, Declaration *decl, |
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344 | Expression *cond, Statement *body ); |
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345 | CatchStmt( const CatchStmt &other ); |
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346 | virtual ~CatchStmt(); |
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347 | |
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348 | Kind get_kind() { return kind; } |
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349 | Declaration *get_decl() { return decl; } |
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350 | void set_decl( Declaration *newValue ) { decl = newValue; } |
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351 | Expression *get_cond() { return cond; } |
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352 | void set_cond( Expression *newCond ) { cond = newCond; } |
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353 | Statement *get_body() { return body; } |
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354 | void set_body( Statement *newValue ) { body = newValue; } |
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355 | |
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356 | virtual CatchStmt *clone() const { return new CatchStmt( *this ); } |
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357 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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358 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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359 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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360 | |
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361 | private: |
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362 | Kind kind; |
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363 | Declaration *decl; |
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364 | Expression *cond; |
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365 | Statement *body; |
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366 | }; |
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367 | |
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368 | class FinallyStmt : public Statement { |
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369 | public: |
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370 | FinallyStmt( std::list<Label> labels, CompoundStmt *block ); |
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371 | FinallyStmt( const FinallyStmt &other ); |
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372 | virtual ~FinallyStmt(); |
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373 | |
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374 | CompoundStmt *get_block() const { return block; } |
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375 | void set_block( CompoundStmt *newValue ) { block = newValue; } |
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376 | |
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377 | virtual FinallyStmt *clone() const { return new FinallyStmt( *this ); } |
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378 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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379 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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380 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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381 | private: |
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382 | CompoundStmt *block; |
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383 | }; |
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384 | |
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385 | |
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386 | // represents a declaration that occurs as part of a compound statement |
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387 | class DeclStmt : public Statement { |
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388 | public: |
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389 | DeclStmt( std::list<Label> labels, Declaration *decl ); |
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390 | DeclStmt( const DeclStmt &other ); |
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391 | virtual ~DeclStmt(); |
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392 | |
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393 | Declaration *get_decl() const { return decl; } |
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394 | void set_decl( Declaration *newValue ) { decl = newValue; } |
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395 | |
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396 | virtual DeclStmt *clone() const { return new DeclStmt( *this ); } |
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397 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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398 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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399 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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400 | private: |
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401 | Declaration *decl; |
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402 | }; |
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403 | |
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404 | |
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405 | /// represents an implicit application of a constructor or destructor. Qualifiers are replaced |
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406 | /// immediately before and after the call so that qualified objects can be constructed |
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407 | /// with the same functions as unqualified objects. |
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408 | class ImplicitCtorDtorStmt : public Statement { |
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409 | public: |
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410 | ImplicitCtorDtorStmt( Statement * callStmt ); |
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411 | ImplicitCtorDtorStmt( const ImplicitCtorDtorStmt & other ); |
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412 | virtual ~ImplicitCtorDtorStmt(); |
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413 | |
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414 | Statement *get_callStmt() const { return callStmt; } |
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415 | void set_callStmt( Statement * newValue ) { callStmt = newValue; } |
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416 | |
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417 | virtual ImplicitCtorDtorStmt *clone() const { return new ImplicitCtorDtorStmt( *this ); } |
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418 | virtual void accept( Visitor &v ) { v.visit( this ); } |
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419 | virtual Statement *acceptMutator( Mutator &m ) { return m.mutate( this ); } |
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420 | virtual void print( std::ostream &os, int indent = 0 ) const; |
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421 | |
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422 | private: |
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423 | // Non-owned pointer to the constructor/destructor statement |
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424 | Statement * callStmt; |
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425 | }; |
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426 | |
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427 | |
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428 | std::ostream & operator<<( std::ostream & out, const Statement * statement ); |
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429 | |
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430 | #endif // STATEMENT_H |
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431 | |
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432 | // Local Variables: // |
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433 | // tab-width: 4 // |
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434 | // mode: c++ // |
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435 | // compile-command: "make install" // |
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436 | // End: // |
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