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.cc -- |
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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 10:55:19 2015 |
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13 | // Update Count : 2 |
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14 | // |
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15 | |
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16 | #include <functional> |
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17 | #include <algorithm> |
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18 | #include <iostream> |
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19 | #include <list> |
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20 | #include <cassert> |
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21 | |
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22 | #include "Statement.h" |
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23 | #include "Expression.h" |
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24 | #include "Declaration.h" |
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25 | #include "Common/SemanticError.h" |
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26 | |
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27 | using std::string; |
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28 | using std::endl; |
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29 | |
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30 | Statement::Statement( std::list<Label> _labels ) : labels(_labels ) {} |
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31 | |
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32 | void Statement::print( std::ostream &, int indent ) {} |
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33 | |
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34 | Statement::~Statement() {} |
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35 | |
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36 | ExprStmt::ExprStmt( std::list<Label> _labels, Expression *_expr ) : Statement(_labels ), expr(_expr ) {} |
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37 | |
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38 | ExprStmt::~ExprStmt() {} |
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39 | |
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40 | void ExprStmt::print( std::ostream &os, int indent ) { |
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41 | os << "\r" << string(indent, ' ') << "Expression Statement:" << endl; |
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42 | expr->print( os, indent + 2 ); |
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43 | } |
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44 | |
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45 | const char *BranchStmt::brType[] = { "Goto", "Break", "Continue" }; |
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46 | |
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47 | BranchStmt::BranchStmt( std::list<Label> labels, Label _target, Type _type ) throw ( SemanticError ) : |
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48 | Statement( labels ), target(_target ), type(_type ) { |
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49 | //actually this is a syntactic error signaled by the parser |
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50 | if ( type == BranchStmt::Goto && target.size() == 0 ) |
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51 | throw SemanticError("goto without target"); |
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52 | } |
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53 | |
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54 | BranchStmt::BranchStmt( std::list<Label> labels, Expression *_computedTarget, Type _type ) throw ( SemanticError ) : |
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55 | Statement( labels ), computedTarget(_computedTarget ), type(_type ) { |
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56 | if ( type != BranchStmt::Goto || computedTarget == 0 ) |
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57 | throw SemanticError("Computed target not valid in branch statement"); |
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58 | } |
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59 | |
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60 | void BranchStmt::print( std::ostream &os, int indent ) { |
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61 | os << "\r" << string( indent, ' ') << "Branch (" << brType[type] << ")" << endl ; |
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62 | } |
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63 | |
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64 | ReturnStmt::ReturnStmt( std::list<Label> labels, Expression *_expr, bool throwP ) : Statement( labels ), expr( _expr ), isThrow( throwP ) {} |
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65 | |
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66 | ReturnStmt::~ReturnStmt() { |
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67 | delete expr; |
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68 | } |
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69 | |
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70 | void ReturnStmt::print( std::ostream &os, int indent ) { |
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71 | os << "\r" << std::string( indent, ' ') << string ( isThrow? "Throw":"Return" ) << " Statement, returning: "; |
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72 | if ( expr != 0 ) expr->print( os ); |
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73 | os << endl; |
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74 | } |
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75 | |
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76 | IfStmt::IfStmt( std::list<Label> _labels, Expression *_condition, Statement *_thenPart, Statement *_elsePart ): |
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77 | Statement(_labels ), condition(_condition ), thenPart(_thenPart ), elsePart(_elsePart ) {} |
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78 | |
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79 | IfStmt::~IfStmt() {} |
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80 | |
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81 | void IfStmt::print( std::ostream &os, int indent ) { |
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82 | os << "\r" << string( indent, ' ') << "If on condition: " << endl ; |
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83 | condition->print( os, indent + 4 ); |
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84 | |
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85 | os << string( indent, ' ') << ".... and branches: " << endl; |
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86 | |
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87 | thenPart->print( os, indent + 4 ); |
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88 | |
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89 | if ( elsePart != 0 ) { |
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90 | elsePart->print( os, indent + 4 ); |
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91 | } // if |
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92 | } |
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93 | |
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94 | SwitchStmt::SwitchStmt( std::list<Label> _labels, Expression * _condition, std::list<Statement *> &_branches ): |
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95 | Statement(_labels ), condition(_condition ), branches(_branches ) { |
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96 | } |
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97 | |
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98 | SwitchStmt::~SwitchStmt() { |
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99 | delete condition; |
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100 | // destroy branches |
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101 | } |
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102 | |
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103 | void SwitchStmt::add_case( CaseStmt *c ) {} |
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104 | |
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105 | void SwitchStmt::print( std::ostream &os, int indent ) { |
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106 | os << "\r" << string( indent, ' ') << "Switch on condition: "; |
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107 | condition->print( os ); |
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108 | os << endl; |
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109 | |
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110 | // branches |
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111 | std::list<Statement *>::iterator i; |
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112 | for ( i = branches.begin(); i != branches.end(); i++) |
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113 | (*i )->print( os, indent + 4 ); |
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114 | |
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115 | //for_each( branches.begin(), branches.end(), mem_fun( bind1st(&Statement::print ), os )); |
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116 | } |
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117 | |
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118 | CaseStmt::CaseStmt( std::list<Label> _labels, Expression *_condition, std::list<Statement *> &_statements, bool deflt ) throw ( SemanticError ) : |
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119 | Statement(_labels ), condition(_condition ), stmts(_statements ), _isDefault( deflt ) { |
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120 | if ( isDefault() && condition != 0 ) |
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121 | throw SemanticError("default with conditions"); |
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122 | } |
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123 | |
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124 | CaseStmt::~CaseStmt() { |
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125 | delete condition; |
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126 | } |
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127 | |
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128 | void CaseStmt::print( std::ostream &os, int indent ) { |
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129 | os << "\r" << string( indent, ' '); |
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130 | |
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131 | if ( isDefault()) |
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132 | os << "Default "; |
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133 | else { |
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134 | os << "Case "; |
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135 | condition->print( os ); |
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136 | } // if |
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137 | |
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138 | os << endl; |
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139 | |
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140 | std::list<Statement *>::iterator i; |
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141 | for ( i = stmts.begin(); i != stmts.end(); i++) |
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142 | (*i )->print( os, indent + 4 ); |
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143 | } |
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144 | |
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145 | //ChooseStmt::ChooseStmt( std::list<Label> labels, Expression *condition, Statement *body ) {} |
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146 | ChooseStmt::ChooseStmt( std::list<Label> _labels, Expression * _condition, std::list<Statement *> &_branches ): |
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147 | Statement(_labels ), condition(_condition ), branches(_branches ) { |
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148 | } |
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149 | |
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150 | ChooseStmt::~ChooseStmt() { |
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151 | delete condition; |
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152 | } |
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153 | |
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154 | void ChooseStmt::add_case( CaseStmt *c ) {} |
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155 | |
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156 | void ChooseStmt::print( std::ostream &os, int indent ) { |
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157 | os << "\r" << string( indent, ' ') << "Choose on condition: "; |
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158 | condition->print( os ); |
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159 | os << endl; |
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160 | |
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161 | // branches |
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162 | std::list<Statement *>::iterator i; |
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163 | for ( i = branches.begin(); i != branches.end(); i++) |
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164 | (*i )->print( os, indent + 4 ); |
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165 | |
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166 | //for_each( branches.begin(), branches.end(), mem_fun( bind1st(&Statement::print ), os )); |
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167 | } |
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168 | |
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169 | void FallthruStmt::print( std::ostream &os, int indent ) { |
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170 | os << "\r" << string( indent, ' ') << "Fall-through statement" << endl; |
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171 | } |
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172 | |
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173 | WhileStmt::WhileStmt( std::list<Label> labels, Expression *condition_, Statement *body_, bool isDoWhile_ ): |
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174 | Statement( labels ), condition( condition_), body( body_), isDoWhile( isDoWhile_) { |
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175 | } |
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176 | |
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177 | WhileStmt::~WhileStmt() { |
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178 | delete body; |
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179 | } |
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180 | |
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181 | void WhileStmt::print( std::ostream &os, int indent ) { |
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182 | os << "\r" << string( indent, ' ') << "While on condition: " << endl ; |
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183 | condition->print( os, indent + 4 ); |
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184 | |
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185 | os << string( indent, ' ') << ".... with body: " << endl; |
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186 | |
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187 | if ( body != 0 ) body->print( os, indent + 4 ); |
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188 | } |
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189 | |
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190 | ForStmt::ForStmt( std::list<Label> labels, Statement *initialization_, Expression *condition_, Expression *increment_, Statement *body_ ): |
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191 | Statement( labels ), initialization( initialization_ ), condition( condition_ ), increment( increment_ ), body( body_ ) { |
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192 | } |
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193 | |
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194 | ForStmt::~ForStmt() { |
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195 | delete initialization; |
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196 | delete condition; |
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197 | delete increment; |
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198 | delete body; |
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199 | } |
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200 | |
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201 | void ForStmt::print( std::ostream &os, int indent ) { |
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202 | os << "\r" << string( indent, ' ') << "For Statement" << endl ; |
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203 | |
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204 | os << "\r" << string( indent + 2, ' ') << "initialization: \n"; |
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205 | if ( initialization != 0 ) |
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206 | initialization->print( os, indent + 4 ); |
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207 | |
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208 | os << "\n\r" << string( indent + 2, ' ') << "condition: \n"; |
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209 | if ( condition != 0 ) |
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210 | condition->print( os, indent + 4 ); |
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211 | |
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212 | os << "\n\r" << string( indent + 2, ' ') << "increment: \n"; |
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213 | if ( increment != 0 ) |
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214 | increment->print( os, indent + 4 ); |
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215 | |
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216 | os << "\n\r" << string( indent + 2, ' ') << "statement block: \n"; |
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217 | if ( body != 0 ) |
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218 | body->print( os, indent + 4 ); |
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219 | |
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220 | os << endl; |
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221 | } |
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222 | |
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223 | TryStmt::TryStmt( std::list<Label> labels, CompoundStmt *tryBlock, std::list<Statement *> &_handlers, FinallyStmt *_finallyBlock ) : |
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224 | Statement( labels ), block( tryBlock ), handlers( _handlers ), finallyBlock( _finallyBlock ) { |
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225 | } |
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226 | |
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227 | TryStmt::TryStmt( const TryStmt &other ) : Statement( other.labels ) { |
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228 | block = other.block; |
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229 | std::copy( other.handlers.begin(), other.handlers.end(), back_inserter( handlers ) ); |
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230 | finallyBlock = other.finallyBlock; |
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231 | } |
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232 | |
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233 | TryStmt::~TryStmt() { |
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234 | delete block; |
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235 | } |
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236 | |
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237 | void TryStmt::print( std::ostream &os, int indent ) { |
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238 | os << "\r" << string( indent, ' ') << "Try Statement" << endl; |
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239 | os << string( indent + 2, ' ') << "with block: " << endl; |
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240 | block->print( os, indent + 4 ); |
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241 | |
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242 | // handlers |
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243 | os << string( indent + 2, ' ') << "and handlers: " << endl; |
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244 | std::list<Statement *>::iterator i; |
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245 | for ( i = handlers.begin(); i != handlers.end(); i++) |
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246 | (*i )->print( os, indent + 4 ); |
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247 | |
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248 | // finally block |
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249 | if ( finallyBlock != 0 ) { |
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250 | os << string( indent + 2, ' ') << "Finally block: " << endl; |
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251 | finallyBlock->print( os, indent + 4 ); |
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252 | } // if |
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253 | } |
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254 | |
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255 | CatchStmt::CatchStmt( std::list<Label> labels, Declaration *_decl, Statement *_body, bool isCatchRest ) : |
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256 | Statement( labels ), decl ( _decl ), body( _body ), catchRest ( isCatchRest ) { |
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257 | } |
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258 | |
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259 | CatchStmt::~CatchStmt() { |
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260 | delete decl; |
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261 | delete body; |
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262 | } |
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263 | |
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264 | void CatchStmt::print( std::ostream &os, int indent ) { |
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265 | os << "\r" << string( indent, ' ') << "Catch Statement" << endl; |
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266 | |
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267 | os << "\r" << string( indent, ' ') << "... catching" << endl; |
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268 | if ( decl ) { |
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269 | decl->printShort( os, indent + 4 ); |
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270 | os << endl; |
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271 | } else if ( catchRest ) |
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272 | os << "\r" << string( indent + 4 , ' ') << "the rest" << endl; |
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273 | else |
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274 | os << "\r" << string( indent + 4 , ' ') << ">>> Error: this catch clause must have a declaration <<<" << endl; |
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275 | } |
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276 | |
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277 | |
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278 | FinallyStmt::FinallyStmt( std::list<Label> labels, CompoundStmt *_block ) : Statement( labels ), block( _block ) { |
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279 | assert( labels.empty() ); // finally statement cannot be labeled |
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280 | } |
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281 | |
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282 | FinallyStmt::~FinallyStmt() { |
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283 | delete block; |
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284 | } |
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285 | |
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286 | void FinallyStmt::print( std::ostream &os, int indent ) { |
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287 | os << "\r" << string( indent, ' ') << "Finally Statement" << endl; |
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288 | os << string( indent + 2, ' ') << "with block: " << endl; |
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289 | block->print( os, indent + 4 ); |
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290 | } |
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291 | |
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292 | NullStmt::NullStmt( std::list<Label> labels ) : CompoundStmt( labels ) {} |
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293 | NullStmt::NullStmt() : CompoundStmt( std::list<Label>() ) {} |
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294 | NullStmt::~NullStmt() {} |
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295 | |
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296 | void NullStmt::print( std::ostream &os, int indent ) { |
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297 | os << "\r" << string( indent, ' ') << "Null Statement" << endl ; |
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298 | } |
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299 | |
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300 | // Local Variables: // |
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301 | // tab-width: 4 // |
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302 | // mode: c++ // |
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303 | // compile-command: "make install" // |
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304 | // End: // |
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