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 : Sun Sep 3 20:46:44 2017 |
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13 | // Update Count : 68 |
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14 | // |
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15 | |
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16 | #include "SynTree/Statement.h" |
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17 | |
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18 | #include <stddef.h> // for NULL |
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19 | #include <cassert> // for assert, assertf |
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20 | #include <iostream> // for operator<<, basic_ostream, endl |
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21 | #include <list> // for list, list<>::const_iterator, _Lis... |
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22 | #include <string> // for operator<<, string, char_traits |
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23 | |
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24 | #include "Common/SemanticError.h" // for SemanticError |
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25 | #include "Common/utility.h" // for maybeClone, cloneAll, deleteAll |
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26 | #include "Declaration.h" // for Declaration |
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27 | #include "Expression.h" // for Expression, ConstantExpr |
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28 | #include "Statement.h" // for Statement, ForStmt, AsmStmt, Catch... |
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29 | #include "SynTree/Label.h" // for Label, operator<< |
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30 | |
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31 | using std::string; |
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32 | using std::endl; |
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33 | |
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34 | Statement::Statement( const std::list<Label> & labels ) : labels( labels ) {} |
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35 | |
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36 | void Statement::print( std::ostream & os, Indenter indent ) const { |
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37 | if ( ! labels.empty() ) { |
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38 | os << indent << "... Labels: {"; |
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39 | for ( const Label & l : labels ) { |
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40 | os << l << ","; |
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41 | } |
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42 | os << "}" << endl; |
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43 | } |
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44 | } |
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45 | |
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46 | Statement::~Statement() {} |
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47 | |
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48 | ExprStmt::ExprStmt( Expression *expr ) : Statement(), expr( expr ) {} |
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49 | |
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50 | ExprStmt::ExprStmt( const ExprStmt &other ) : Statement( other ), expr( maybeClone( other.expr ) ) {} |
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51 | |
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52 | ExprStmt::~ExprStmt() { |
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53 | delete expr; |
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54 | } |
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55 | |
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56 | void ExprStmt::print( std::ostream &os, Indenter indent ) const { |
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57 | os << "Expression Statement:" << endl << indent+1; |
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58 | expr->print( os, indent+1 ); |
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59 | } |
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60 | |
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61 | |
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62 | AsmStmt::AsmStmt( bool voltile, Expression *instruction, std::list<Expression *> output, std::list<Expression *> input, std::list<ConstantExpr *> clobber, std::list<Label> gotolabels ) : Statement(), voltile( voltile ), instruction( instruction ), output( output ), input( input ), clobber( clobber ), gotolabels( gotolabels ) {} |
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63 | |
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64 | AsmStmt::AsmStmt( const AsmStmt & other ) : Statement( other ), voltile( other.voltile ), instruction( maybeClone( other.instruction ) ), gotolabels( other.gotolabels ) { |
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65 | cloneAll( other.output, output ); |
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66 | cloneAll( other.input, input ); |
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67 | cloneAll( other.clobber, clobber ); |
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68 | } |
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69 | |
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70 | AsmStmt::~AsmStmt() { |
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71 | delete instruction; |
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72 | deleteAll( output ); |
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73 | deleteAll( input ); |
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74 | deleteAll( clobber ); |
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75 | } |
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76 | |
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77 | void AsmStmt::print( std::ostream &os, Indenter indent ) const { |
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78 | os << "Assembler Statement:" << endl; |
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79 | os << indent+1 << "instruction: " << endl << indent; |
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80 | instruction->print( os, indent+1 ); |
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81 | if ( ! output.empty() ) { |
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82 | os << endl << indent+1 << "output: " << endl; |
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83 | printAll( output, os, indent+1 ); |
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84 | } // if |
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85 | if ( ! input.empty() ) { |
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86 | os << indent+1 << "input: " << endl; |
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87 | printAll( input, os, indent+1 ); |
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88 | } // if |
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89 | if ( ! clobber.empty() ) { |
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90 | os << indent+1 << "clobber: " << endl; |
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91 | printAll( clobber, os, indent+1 ); |
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92 | } // if |
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93 | } |
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94 | |
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95 | |
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96 | DirectiveStmt::DirectiveStmt( const std::string & directive ) : Statement(), directive( directive ) {} |
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97 | |
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98 | void DirectiveStmt::print( std::ostream &os, Indenter ) const { |
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99 | os << "GCC Directive:" << directive << endl; |
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100 | } |
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101 | |
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102 | |
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103 | const char *BranchStmt::brType[] = { "Goto", "Break", "Continue" }; |
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104 | |
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105 | BranchStmt::BranchStmt( Label target, Type type ) throw ( SemanticErrorException ) : |
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106 | Statement(), originalTarget( target ), target( target ), computedTarget( nullptr ), type( type ) { |
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107 | //actually this is a syntactic error signaled by the parser |
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108 | if ( type == BranchStmt::Goto && target.empty() ) { |
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109 | SemanticError( target.get_statement()->location, "goto without target"); |
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110 | } |
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111 | } |
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112 | |
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113 | BranchStmt::BranchStmt( Expression *computedTarget, Type type ) throw ( SemanticErrorException ) : |
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114 | Statement(), computedTarget( computedTarget ), type( type ) { |
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115 | if ( type != BranchStmt::Goto || computedTarget == nullptr ) { |
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116 | SemanticError( computedTarget->location, "Computed target not valid in branch statement"); |
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117 | } |
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118 | } |
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119 | |
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120 | void BranchStmt::print( std::ostream &os, Indenter indent ) const { |
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121 | os << "Branch (" << brType[type] << ")" << endl ; |
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122 | if ( target != "" ) os << indent+1 << "with target: " << target << endl; |
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123 | if ( originalTarget != "" ) os << indent+1 << "with original target: " << originalTarget << endl; |
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124 | if ( computedTarget != nullptr ) os << indent+1 << "with computed target: " << computedTarget << endl; |
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125 | } |
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126 | |
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127 | ReturnStmt::ReturnStmt( Expression *expr ) : Statement(), expr( expr ) {} |
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128 | |
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129 | ReturnStmt::ReturnStmt( const ReturnStmt & other ) : Statement( other ), expr( maybeClone( other.expr ) ) {} |
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130 | |
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131 | ReturnStmt::~ReturnStmt() { |
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132 | delete expr; |
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133 | } |
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134 | |
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135 | void ReturnStmt::print( std::ostream &os, Indenter indent ) const { |
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136 | os << "Return Statement, returning: "; |
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137 | if ( expr != nullptr ) { |
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138 | os << endl << indent+1; |
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139 | expr->print( os, indent+1 ); |
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140 | } |
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141 | os << endl; |
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142 | } |
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143 | |
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144 | IfStmt::IfStmt( Expression *condition, Statement *thenPart, Statement *elsePart, std::list<Statement *> initialization ): |
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145 | Statement(), condition( condition ), thenPart( thenPart ), elsePart( elsePart ), initialization( initialization ) {} |
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146 | |
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147 | IfStmt::IfStmt( const IfStmt & other ) : |
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148 | Statement( other ), condition( maybeClone( other.condition ) ), thenPart( maybeClone( other.thenPart ) ), elsePart( maybeClone( other.elsePart ) ) { |
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149 | cloneAll( other.initialization, initialization ); |
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150 | } |
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151 | |
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152 | IfStmt::~IfStmt() { |
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153 | deleteAll( initialization ); |
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154 | delete condition; |
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155 | delete thenPart; |
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156 | delete elsePart; |
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157 | } |
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158 | |
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159 | void IfStmt::print( std::ostream &os, Indenter indent ) const { |
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160 | os << "If on condition: " << endl; |
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161 | os << indent+1; |
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162 | condition->print( os, indent+1 ); |
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163 | |
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164 | if ( !initialization.empty() ) { |
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165 | os << indent << "... with initialization: \n"; |
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166 | for ( const Statement * stmt : initialization ) { |
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167 | os << indent+1; |
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168 | stmt->print( os, indent+1 ); |
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169 | } |
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170 | os << endl; |
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171 | } |
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172 | |
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173 | os << indent << "... then: " << endl; |
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174 | |
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175 | os << indent+1; |
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176 | thenPart->print( os, indent+1 ); |
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177 | |
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178 | if ( elsePart != 0 ) { |
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179 | os << indent << "... else: " << endl; |
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180 | os << indent+1; |
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181 | elsePart->print( os, indent+1 ); |
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182 | } // if |
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183 | } |
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184 | |
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185 | SwitchStmt::SwitchStmt( Expression * condition, const std::list<Statement *> &statements ): |
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186 | Statement(), condition( condition ), statements( statements ) { |
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187 | } |
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188 | |
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189 | SwitchStmt::SwitchStmt( const SwitchStmt & other ): |
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190 | Statement( other ), condition( maybeClone( other.condition ) ) { |
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191 | cloneAll( other.statements, statements ); |
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192 | } |
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193 | |
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194 | SwitchStmt::~SwitchStmt() { |
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195 | delete condition; |
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196 | // destroy statements |
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197 | deleteAll( statements ); |
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198 | } |
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199 | |
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200 | void SwitchStmt::print( std::ostream &os, Indenter indent ) const { |
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201 | os << "Switch on condition: "; |
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202 | condition->print( os ); |
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203 | os << endl; |
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204 | |
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205 | for ( const Statement * stmt : statements ) { |
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206 | stmt->print( os, indent+1 ); |
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207 | } |
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208 | } |
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209 | |
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210 | CaseStmt::CaseStmt( Expression *condition, const std::list<Statement *> &statements, bool deflt ) throw ( SemanticErrorException ) : |
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211 | Statement(), condition( condition ), stmts( statements ), _isDefault( deflt ) { |
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212 | if ( isDefault() && condition != 0 ) SemanticError( condition, "default case with condition: " ); |
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213 | } |
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214 | |
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215 | CaseStmt::CaseStmt( const CaseStmt & other ) : |
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216 | Statement( other ), condition( maybeClone(other.condition ) ), _isDefault( other._isDefault ) { |
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217 | cloneAll( other.stmts, stmts ); |
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218 | } |
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219 | |
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220 | CaseStmt::~CaseStmt() { |
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221 | delete condition; |
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222 | deleteAll( stmts ); |
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223 | } |
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224 | |
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225 | CaseStmt * CaseStmt::makeDefault( const std::list<Label> & labels, std::list<Statement *> stmts ) { |
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226 | CaseStmt * stmt = new CaseStmt( nullptr, stmts, true ); |
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227 | stmt->labels = labels; |
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228 | return stmt; |
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229 | } |
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230 | |
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231 | void CaseStmt::print( std::ostream &os, Indenter indent ) const { |
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232 | if ( isDefault() ) os << indent << "Default "; |
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233 | else { |
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234 | os << indent << "Case "; |
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235 | condition->print( os, indent ); |
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236 | } // if |
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237 | os << endl; |
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238 | |
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239 | for ( Statement * stmt : stmts ) { |
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240 | os << indent+1; |
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241 | stmt->print( os, indent+1 ); |
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242 | } |
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243 | } |
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244 | |
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245 | WhileStmt::WhileStmt( Expression *condition, Statement *body, bool isDoWhile ): |
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246 | Statement(), condition( condition), body( body), isDoWhile( isDoWhile) { |
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247 | } |
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248 | |
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249 | WhileStmt::WhileStmt( const WhileStmt & other ): |
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250 | Statement( other ), condition( maybeClone( other.condition ) ), body( maybeClone( other.body ) ), isDoWhile( other.isDoWhile ) { |
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251 | } |
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252 | |
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253 | WhileStmt::~WhileStmt() { |
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254 | delete body; |
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255 | delete condition; |
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256 | } |
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257 | |
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258 | void WhileStmt::print( std::ostream &os, Indenter indent ) const { |
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259 | os << "While on condition: " << endl ; |
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260 | condition->print( os, indent+1 ); |
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261 | |
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262 | os << indent << "... with body: " << endl; |
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263 | |
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264 | if ( body != 0 ) body->print( os, indent+1 ); |
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265 | } |
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266 | |
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267 | ForStmt::ForStmt( std::list<Statement *> initialization, Expression *condition, Expression *increment, Statement *body ): |
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268 | Statement(), initialization( initialization ), condition( condition ), increment( increment ), body( body ) { |
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269 | } |
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270 | |
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271 | ForStmt::ForStmt( const ForStmt & other ): |
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272 | Statement( other ), condition( maybeClone( other.condition ) ), increment( maybeClone( other.increment ) ), body( maybeClone( other.body ) ) { |
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273 | cloneAll( other.initialization, initialization ); |
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274 | |
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275 | } |
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276 | |
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277 | ForStmt::~ForStmt() { |
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278 | deleteAll( initialization ); |
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279 | delete condition; |
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280 | delete increment; |
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281 | delete body; |
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282 | } |
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283 | |
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284 | void ForStmt::print( std::ostream &os, Indenter indent ) const { |
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285 | Statement::print( os, indent ); // print labels |
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286 | |
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287 | os << "For Statement" << endl; |
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288 | |
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289 | if ( ! initialization.empty() ) { |
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290 | os << indent << "... initialization: \n"; |
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291 | for ( Statement * stmt : initialization ) { |
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292 | os << indent+1; |
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293 | stmt->print( os, indent+1 ); |
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294 | } |
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295 | } |
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296 | |
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297 | if ( condition != nullptr ) { |
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298 | os << indent << "... condition: \n" << indent+1; |
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299 | condition->print( os, indent+1 ); |
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300 | } |
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301 | |
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302 | if ( increment != nullptr ) { |
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303 | os << "\n" << indent << "... increment: \n" << indent+1; |
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304 | increment->print( os, indent+1 ); |
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305 | } |
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306 | |
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307 | if ( body != 0 ) { |
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308 | os << "\n" << indent << "... with body: \n" << indent+1; |
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309 | body->print( os, indent+1 ); |
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310 | } |
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311 | os << endl; |
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312 | } |
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313 | |
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314 | ThrowStmt::ThrowStmt( Kind kind, Expression * expr, Expression * target ) : |
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315 | Statement(), kind(kind), expr(expr), target(target) { |
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316 | assertf(Resume == kind || nullptr == target, "Non-local termination throw is not accepted." ); |
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317 | } |
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318 | |
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319 | ThrowStmt::ThrowStmt( const ThrowStmt &other ) : |
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320 | Statement ( other ), kind( other.kind ), expr( maybeClone( other.expr ) ), target( maybeClone( other.target ) ) { |
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321 | } |
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322 | |
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323 | ThrowStmt::~ThrowStmt() { |
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324 | delete expr; |
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325 | delete target; |
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326 | } |
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327 | |
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328 | void ThrowStmt::print( std::ostream &os, Indenter indent) const { |
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329 | if ( target ) os << "Non-Local "; |
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330 | os << "Throw Statement, raising: "; |
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331 | expr->print(os, indent+1); |
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332 | if ( target ) { |
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333 | os << "... at: "; |
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334 | target->print(os, indent+1); |
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335 | } |
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336 | } |
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337 | |
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338 | TryStmt::TryStmt( CompoundStmt *tryBlock, std::list<CatchStmt *> &handlers, FinallyStmt *finallyBlock ) : |
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339 | Statement(), block( tryBlock ), handlers( handlers ), finallyBlock( finallyBlock ) { |
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340 | } |
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341 | |
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342 | TryStmt::TryStmt( const TryStmt &other ) : Statement( other ), block( maybeClone( other.block ) ), finallyBlock( maybeClone( other.finallyBlock ) ) { |
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343 | cloneAll( other.handlers, handlers ); |
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344 | } |
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345 | |
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346 | TryStmt::~TryStmt() { |
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347 | delete block; |
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348 | deleteAll( handlers ); |
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349 | delete finallyBlock; |
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350 | } |
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351 | |
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352 | void TryStmt::print( std::ostream &os, Indenter indent ) const { |
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353 | os << "Try Statement" << endl; |
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354 | os << indent << "... with block:" << endl << indent+1; |
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355 | block->print( os, indent+1 ); |
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356 | |
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357 | // handlers |
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358 | os << indent << "... and handlers:" << endl; |
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359 | for ( const CatchStmt * stmt : handlers ) { |
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360 | os << indent+1; |
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361 | stmt->print( os, indent+1 ); |
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362 | } |
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363 | |
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364 | // finally block |
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365 | if ( finallyBlock != 0 ) { |
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366 | os << indent << "... and finally:" << endl << indent+1; |
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367 | finallyBlock->print( os, indent+1 ); |
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368 | } // if |
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369 | } |
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370 | |
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371 | CatchStmt::CatchStmt( Kind kind, Declaration *decl, Expression *cond, Statement *body ) : |
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372 | Statement(), kind ( kind ), decl ( decl ), cond ( cond ), body( body ) { |
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373 | assertf( decl, "Catch clause must have a declaration." ); |
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374 | } |
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375 | |
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376 | CatchStmt::CatchStmt( const CatchStmt & other ) : |
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377 | Statement( other ), kind ( other.kind ), decl ( maybeClone( other.decl ) ), cond ( maybeClone( other.cond ) ), body( maybeClone( other.body ) ) { |
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378 | } |
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379 | |
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380 | CatchStmt::~CatchStmt() { |
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381 | delete decl; |
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382 | delete body; |
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383 | } |
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384 | |
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385 | void CatchStmt::print( std::ostream &os, Indenter indent ) const { |
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386 | os << "Catch " << ((Terminate == kind) ? "Terminate" : "Resume") << " Statement" << endl; |
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387 | |
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388 | os << indent << "... catching: "; |
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389 | decl->printShort( os, indent+1 ); |
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390 | os << endl; |
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391 | |
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392 | if ( cond ) { |
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393 | os << indent << "... with conditional:" << endl << indent+1; |
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394 | cond->print( os, indent+1 ); |
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395 | } |
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396 | |
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397 | os << indent << "... with block:" << endl; |
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398 | os << indent+1; |
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399 | body->print( os, indent+1 ); |
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400 | } |
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401 | |
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402 | |
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403 | FinallyStmt::FinallyStmt( CompoundStmt *block ) : Statement(), block( block ) { |
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404 | } |
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405 | |
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406 | FinallyStmt::FinallyStmt( const FinallyStmt & other ) : Statement( other ), block( maybeClone( other.block ) ) { |
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407 | } |
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408 | |
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409 | FinallyStmt::~FinallyStmt() { |
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410 | delete block; |
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411 | } |
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412 | |
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413 | void FinallyStmt::print( std::ostream &os, Indenter indent ) const { |
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414 | os << "Finally Statement" << endl; |
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415 | os << indent << "... with block:" << endl << indent+1; |
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416 | block->print( os, indent+1 ); |
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417 | } |
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418 | |
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419 | WaitForStmt::WaitForStmt() : Statement() { |
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420 | timeout.time = nullptr; |
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421 | timeout.statement = nullptr; |
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422 | timeout.condition = nullptr; |
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423 | orelse .statement = nullptr; |
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424 | orelse .condition = nullptr; |
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425 | } |
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426 | |
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427 | WaitForStmt::WaitForStmt( const WaitForStmt & other ) : Statement( other ) { |
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428 | clauses.reserve( other.clauses.size() ); |
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429 | for( auto & ocl : other.clauses ) { |
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430 | clauses.emplace_back(); |
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431 | clauses.back().target.function = ocl.target.function->clone(); |
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432 | cloneAll( ocl.target.arguments, clauses.back().target.arguments ); |
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433 | clauses.back().statement = ocl.statement->clone(); |
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434 | clauses.back().condition = ocl.condition->clone(); |
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435 | } |
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436 | |
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437 | timeout.time = other.timeout.time ->clone(); |
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438 | timeout.statement = other.timeout.statement->clone(); |
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439 | timeout.condition = other.timeout.condition->clone(); |
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440 | orelse .statement = other.orelse .statement->clone(); |
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441 | orelse .condition = other.orelse .condition->clone(); |
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442 | } |
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443 | |
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444 | WaitForStmt::~WaitForStmt() { |
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445 | for( auto & clause : clauses ) { |
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446 | delete clause.target.function; |
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447 | deleteAll( clause.target.arguments ); |
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448 | delete clause.statement; |
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449 | delete clause.condition; |
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450 | } |
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451 | |
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452 | delete timeout.time; |
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453 | delete timeout.statement; |
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454 | delete timeout.condition; |
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455 | |
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456 | delete orelse.statement; |
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457 | delete orelse.condition; |
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458 | } |
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459 | |
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460 | void WaitForStmt::print( std::ostream &os, Indenter indent ) const { |
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461 | os << "Waitfor Statement" << endl; |
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462 | indent += 1; |
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463 | for( auto & clause : clauses ) { |
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464 | os << indent << "target function :"; |
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465 | if(clause.target.function) { clause.target.function->print(os, indent + 1); } |
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466 | os << endl << indent << "with arguments :" << endl; |
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467 | for( auto & thing : clause.target.arguments) { |
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468 | if(thing) { thing->print(os, indent + 1); } |
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469 | } |
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470 | os << indent << " with statment :" << endl; |
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471 | if(clause.statement) { clause.statement->print(os, indent + 1); } |
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472 | |
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473 | os << indent << " with condition :" << endl; |
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474 | if(clause.condition) { clause.condition->print(os, indent + 1); } |
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475 | } |
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476 | |
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477 | os << indent << " timeout of :" << endl; |
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478 | if(timeout.time) { timeout.time->print(os, indent + 1); } |
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479 | |
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480 | os << indent << " with statment :" << endl; |
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481 | if(timeout.statement) { timeout.statement->print(os, indent + 1); } |
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482 | |
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483 | os << indent << " with condition :" << endl; |
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484 | if(timeout.condition) { timeout.condition->print(os, indent + 1); } |
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485 | |
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486 | |
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487 | os << indent << " else :" << endl; |
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488 | if(orelse.statement) { orelse.statement->print(os, indent + 1); } |
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489 | |
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490 | os << indent << " with condition :" << endl; |
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491 | if(orelse.condition) { orelse.condition->print(os, indent + 1); } |
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492 | } |
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493 | |
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494 | |
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495 | WithStmt::WithStmt( const std::list< Expression * > & exprs, Statement * stmt ) : Statement(), exprs( exprs ), stmt( stmt ) {} |
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496 | WithStmt::WithStmt( const WithStmt & other ) : Statement( other ), stmt( maybeClone( other.stmt ) ) { |
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497 | cloneAll( other.exprs, exprs ); |
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498 | } |
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499 | WithStmt::~WithStmt() { |
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500 | deleteAll( exprs ); |
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501 | delete stmt; |
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502 | } |
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503 | |
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504 | void WithStmt::print( std::ostream & os, Indenter indent ) const { |
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505 | os << "With statement" << endl; |
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506 | os << indent << "... with expressions: " << endl; |
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507 | printAll( exprs, os, indent+1 ); |
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508 | os << indent << "... with statement:" << endl << indent+1; |
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509 | stmt->print( os, indent+1 ); |
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510 | } |
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511 | |
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512 | |
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513 | NullStmt::NullStmt( const std::list<Label> & labels ) : Statement( labels ) { |
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514 | } |
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515 | |
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516 | void NullStmt::print( std::ostream &os, Indenter indent ) const { |
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517 | os << "Null Statement" << endl; |
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518 | Statement::print( os, indent ); |
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519 | } |
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520 | |
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521 | ImplicitCtorDtorStmt::ImplicitCtorDtorStmt( Statement * callStmt ) : Statement(), callStmt( callStmt ) { |
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522 | assert( callStmt ); |
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523 | } |
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524 | |
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525 | ImplicitCtorDtorStmt::ImplicitCtorDtorStmt( const ImplicitCtorDtorStmt & other ) : Statement( other ), callStmt( maybeClone( other.callStmt ) ) { |
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526 | } |
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527 | |
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528 | ImplicitCtorDtorStmt::~ImplicitCtorDtorStmt() { |
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529 | delete callStmt; |
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530 | } |
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531 | |
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532 | void ImplicitCtorDtorStmt::print( std::ostream &os, Indenter indent ) const { |
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533 | os << "Implicit Ctor Dtor Statement" << endl; |
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534 | os << indent << "... with Ctor/Dtor: "; |
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535 | callStmt->print( os, indent+1); |
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536 | os << endl; |
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537 | } |
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538 | |
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539 | // Local Variables: // |
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540 | // tab-width: 4 // |
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541 | // mode: c++ // |
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542 | // compile-command: "make install" // |
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543 | // End: // |
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