1 | #include <algorithm> |
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2 | #include <iostream> |
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3 | #include <cassert> |
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4 | #include <list> |
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5 | |
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6 | #include "SynTree/Type.h" |
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7 | #include "SynTree/Declaration.h" |
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8 | #include "SynTree/Statement.h" |
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9 | #include "SynTree/Expression.h" |
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10 | #include "SynTree/Initializer.h" |
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11 | |
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12 | #include "utility.h" |
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13 | #include "UnimplementedError.h" |
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14 | |
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15 | #include "CodeGenerator2.h" |
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16 | #include "OperatorTable.h" |
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17 | #include "GenType.h" |
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18 | |
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19 | using namespace std; |
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20 | |
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21 | namespace CodeGen { |
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22 | int CodeGenerator2::tabsize = 4; |
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23 | |
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24 | CodeGenerator2::CodeGenerator2( std::ostream &os ) : cur_indent( 0 ), insideFunction( false ), before( os ), after() { } |
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25 | |
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26 | CodeGenerator2::CodeGenerator2( std::ostream &os, std::string init, int indent, bool infunp ) |
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27 | : cur_indent( indent ), insideFunction( infunp ), before( os ) |
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28 | { |
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29 | //before << std::string( init ); |
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30 | } |
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31 | |
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32 | CodeGenerator2::CodeGenerator2( std::ostream &os, char *init, int indent, bool infunp ) |
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33 | : cur_indent( indent ), insideFunction( infunp ), before( os ) |
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34 | { |
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35 | //before << std::string( init ); |
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36 | } |
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37 | |
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38 | string mangleName( DeclarationWithType *decl ) { |
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39 | if ( decl->get_mangleName() != "" ) { |
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40 | return decl->get_mangleName(); |
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41 | } else { |
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42 | return decl->get_name(); |
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43 | } // if |
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44 | } |
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45 | |
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46 | //*** Declarations |
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47 | void CodeGenerator2::visit( FunctionDecl *functionDecl ) { |
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48 | handleStorageClass( functionDecl ); |
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49 | before << genType( functionDecl->get_functionType(), mangleName( functionDecl ) ); |
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50 | |
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51 | // how to get this to the Functype? |
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52 | std::list< Declaration * > olds = functionDecl->get_oldDecls(); |
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53 | if ( ! olds.empty() ) { |
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54 | before << " /* function has old declaration */"; |
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55 | } // if |
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56 | |
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57 | // acceptAll( functionDecl->get_oldDecls(), *this ); |
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58 | if ( functionDecl->get_statements() ) { |
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59 | functionDecl->get_statements()->accept(*this ); |
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60 | } // if |
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61 | } |
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62 | |
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63 | void CodeGenerator2::visit( ObjectDecl *objectDecl ) { |
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64 | handleStorageClass( objectDecl ); |
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65 | before << genType( objectDecl->get_type(), mangleName( objectDecl ) ); |
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66 | |
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67 | if ( objectDecl->get_init() ) { |
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68 | before << " = "; |
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69 | objectDecl->get_init()->accept( *this ); |
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70 | } // if |
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71 | if ( objectDecl->get_bitfieldWidth() ) { |
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72 | before << ":"; |
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73 | objectDecl->get_bitfieldWidth()->accept( *this ); |
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74 | } // if |
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75 | } |
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76 | |
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77 | void CodeGenerator2::handleAggregate( AggregateDecl *aggDecl ) { |
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78 | if ( aggDecl->get_name() != "" ) |
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79 | before << aggDecl->get_name(); |
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80 | |
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81 | std::list< Declaration * > &memb = aggDecl->get_members(); |
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82 | |
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83 | if ( ! memb.empty() ) { |
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84 | before << endl << string( cur_indent, ' ' ) << "{" << endl; |
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85 | |
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86 | cur_indent += CodeGenerator2::tabsize; |
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87 | for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) { |
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88 | before << string( cur_indent, ' ' ); |
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89 | (*i)->accept(*this ); |
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90 | before << ";" << endl; |
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91 | } |
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92 | |
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93 | cur_indent -= CodeGenerator2::tabsize; |
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94 | |
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95 | before << string( cur_indent, ' ' ) << "}"; |
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96 | } // if |
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97 | } |
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98 | |
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99 | void CodeGenerator2::visit( StructDecl *structDecl ) { |
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100 | before << "struct "; |
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101 | handleAggregate( structDecl ); |
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102 | } |
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103 | |
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104 | void CodeGenerator2::visit( UnionDecl *aggregateDecl ) { |
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105 | before << "union "; |
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106 | handleAggregate( aggregateDecl ); |
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107 | } |
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108 | |
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109 | void CodeGenerator2::visit( EnumDecl *aggDecl ) { |
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110 | before << "enum "; |
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111 | |
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112 | if ( aggDecl->get_name() != "" ) |
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113 | before << aggDecl->get_name(); |
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114 | |
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115 | std::list< Declaration* > &memb = aggDecl->get_members(); |
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116 | |
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117 | if ( ! memb.empty() ) { |
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118 | before << endl << "{" << endl; |
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119 | |
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120 | cur_indent += CodeGenerator2::tabsize; |
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121 | for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) { |
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122 | ObjectDecl *obj = dynamic_cast< ObjectDecl* >( *i ); |
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123 | assert( obj ); |
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124 | before << string( cur_indent, ' ' ) << mangleName( obj ); |
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125 | if ( obj->get_init() ) { |
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126 | before << " = "; |
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127 | obj->get_init()->accept(*this ); |
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128 | } // if |
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129 | before << "," << endl; |
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130 | } |
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131 | |
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132 | cur_indent -= CodeGenerator2::tabsize; |
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133 | |
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134 | before << "}" << endl; |
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135 | } // if |
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136 | } |
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137 | |
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138 | void CodeGenerator2::visit( ContextDecl *aggregateDecl ) {} |
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139 | |
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140 | void CodeGenerator2::visit( TypedefDecl *typeDecl ) { |
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141 | before << "typedef "; |
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142 | before << genType( typeDecl->get_base(), typeDecl->get_name() ); |
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143 | } |
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144 | |
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145 | void CodeGenerator2::visit( TypeDecl *typeDecl ) { |
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146 | // really, we should mutate this into something that isn't a TypeDecl but that requires large-scale changes, |
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147 | // still to be done |
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148 | before << "extern unsigned long " << typeDecl->get_name(); |
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149 | if ( typeDecl->get_base() ) { |
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150 | before << " = sizeof( " << genType( typeDecl->get_base(), "" ) << " )"; |
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151 | } // if |
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152 | } |
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153 | |
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154 | void CodeGenerator2::visit( SingleInit *init ) { |
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155 | init->get_value()->accept( *this ); |
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156 | } |
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157 | |
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158 | void CodeGenerator2::visit( ListInit *init ) { |
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159 | before << "{ "; |
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160 | genCommaList( init->begin_initializers(), init->end_initializers() ); |
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161 | before << " }"; |
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162 | } |
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163 | |
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164 | void CodeGenerator2::visit( Constant *constant ) { |
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165 | before << constant->get_value() ; |
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166 | } |
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167 | |
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168 | //*** Expressions |
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169 | void CodeGenerator2::visit( ApplicationExpr *applicationExpr ) { |
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170 | if ( VariableExpr *varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) { |
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171 | OperatorInfo opInfo; |
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172 | if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) { |
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173 | std::list< Expression* >::iterator arg = applicationExpr->get_args().begin(); |
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174 | switch ( opInfo.type ) { |
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175 | case OT_PREFIXASSIGN: |
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176 | case OT_POSTFIXASSIGN: |
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177 | case OT_INFIXASSIGN: |
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178 | { |
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179 | assert( arg != applicationExpr->get_args().end() ); |
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180 | if ( AddressExpr *addrExpr = dynamic_cast< AddressExpr * >( *arg ) ) { |
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181 | |
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182 | *arg = addrExpr->get_arg(); |
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183 | } else { |
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184 | UntypedExpr *newExpr = new UntypedExpr( new NameExpr( "*?" ) ); |
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185 | newExpr->get_args().push_back( *arg ); |
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186 | *arg = newExpr; |
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187 | } // if |
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188 | break; |
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189 | } |
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190 | |
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191 | default: |
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192 | // do nothing |
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193 | ; |
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194 | } |
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195 | |
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196 | switch ( opInfo.type ) { |
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197 | case OT_INDEX: |
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198 | assert( applicationExpr->get_args().size() == 2 ); |
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199 | (*arg++)->accept( *this ); |
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200 | before << "["; |
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201 | (*arg)->accept( *this ); |
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202 | before << "]"; |
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203 | break; |
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204 | |
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205 | case OT_CALL: |
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206 | // there are no intrinsic definitions of the function call operator |
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207 | assert( false ); |
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208 | break; |
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209 | |
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210 | case OT_PREFIX: |
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211 | case OT_PREFIXASSIGN: |
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212 | assert( applicationExpr->get_args().size() == 1 ); |
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213 | before << "("; |
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214 | before << opInfo.symbol; |
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215 | (*arg)->accept( *this ); |
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216 | before << ")"; |
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217 | break; |
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218 | |
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219 | case OT_POSTFIX: |
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220 | case OT_POSTFIXASSIGN: |
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221 | assert( applicationExpr->get_args().size() == 1 ); |
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222 | (*arg)->accept( *this ); |
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223 | before << opInfo.symbol; |
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224 | break; |
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225 | |
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226 | case OT_INFIX: |
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227 | case OT_INFIXASSIGN: |
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228 | assert( applicationExpr->get_args().size() == 2 ); |
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229 | before << "("; |
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230 | (*arg++)->accept( *this ); |
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231 | before << opInfo.symbol; |
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232 | (*arg)->accept( *this ); |
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233 | before << ")"; |
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234 | break; |
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235 | |
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236 | case OT_CONSTANT: |
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237 | // there are no intrinsic definitions of 0 or 1 as functions |
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238 | assert( false ); |
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239 | } |
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240 | } else { |
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241 | varExpr->accept( *this ); |
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242 | before << "("; |
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243 | genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() ); |
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244 | before << ")"; |
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245 | } // if |
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246 | } else { |
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247 | applicationExpr->get_function()->accept( *this ); |
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248 | before << "("; |
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249 | genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() ); |
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250 | before << ")"; |
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251 | } // if |
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252 | } |
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253 | |
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254 | void CodeGenerator2::visit( UntypedExpr *untypedExpr ) { |
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255 | if ( NameExpr *nameExpr = dynamic_cast< NameExpr* >( untypedExpr->get_function() ) ) { |
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256 | OperatorInfo opInfo; |
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257 | if ( operatorLookup( nameExpr->get_name(), opInfo ) ) { |
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258 | std::list< Expression* >::iterator arg = untypedExpr->get_args().begin(); |
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259 | switch ( opInfo.type ) { |
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260 | case OT_INDEX: |
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261 | assert( untypedExpr->get_args().size() == 2 ); |
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262 | (*arg++)->accept( *this ); |
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263 | before << "["; |
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264 | (*arg)->accept( *this ); |
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265 | before << "]"; |
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266 | break; |
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267 | |
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268 | case OT_CALL: |
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269 | assert( false ); |
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270 | break; |
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271 | |
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272 | case OT_PREFIX: |
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273 | case OT_PREFIXASSIGN: |
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274 | assert( untypedExpr->get_args().size() == 1 ); |
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275 | before << "("; |
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276 | before << opInfo.symbol; |
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277 | (*arg)->accept( *this ); |
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278 | before << ")"; |
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279 | break; |
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280 | |
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281 | case OT_POSTFIX: |
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282 | case OT_POSTFIXASSIGN: |
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283 | assert( untypedExpr->get_args().size() == 1 ); |
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284 | (*arg)->accept( *this ); |
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285 | before << opInfo.symbol; |
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286 | break; |
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287 | |
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288 | case OT_INFIX: |
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289 | case OT_INFIXASSIGN: |
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290 | assert( untypedExpr->get_args().size() == 2 ); |
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291 | before << "("; |
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292 | (*arg++)->accept( *this ); |
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293 | before << opInfo.symbol; |
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294 | (*arg)->accept( *this ); |
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295 | before << ")"; |
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296 | break; |
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297 | |
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298 | case OT_CONSTANT: |
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299 | // there are no intrinsic definitions of 0 or 1 as functions |
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300 | assert( false ); |
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301 | } |
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302 | } else { |
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303 | nameExpr->accept( *this ); |
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304 | before << "("; |
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305 | genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() ); |
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306 | before << ")"; |
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307 | } // if |
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308 | } else { |
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309 | untypedExpr->get_function()->accept( *this ); |
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310 | before << "("; |
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311 | genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() ); |
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312 | before << ")"; |
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313 | } // if |
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314 | } |
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315 | |
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316 | void CodeGenerator2::visit( NameExpr *nameExpr ) { |
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317 | OperatorInfo opInfo; |
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318 | if ( operatorLookup( nameExpr->get_name(), opInfo ) ) { |
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319 | assert( opInfo.type == OT_CONSTANT ); |
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320 | before << opInfo.symbol; |
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321 | } else { |
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322 | before << nameExpr->get_name(); |
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323 | } // if |
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324 | } |
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325 | |
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326 | void CodeGenerator2::visit( AddressExpr *addressExpr ) { |
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327 | before << "(&"; |
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328 | // this hack makes sure that we don't convert "constant_zero" to "0" if we're taking its address |
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329 | if ( VariableExpr *variableExpr = dynamic_cast< VariableExpr* >( addressExpr->get_arg() ) ) { |
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330 | before << mangleName( variableExpr->get_var() ); |
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331 | } else { |
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332 | addressExpr->get_arg()->accept( *this ); |
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333 | } // if |
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334 | before << ")"; |
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335 | } |
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336 | |
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337 | void CodeGenerator2::visit( CastExpr *castExpr ) { |
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338 | before << "(("; |
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339 | if ( castExpr->get_results().empty() ) { |
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340 | before << "void" ; |
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341 | } else { |
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342 | before << genType( castExpr->get_results().front(), "" ); |
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343 | } // if |
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344 | before << ")"; |
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345 | castExpr->get_arg()->accept( *this ); |
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346 | before << ")"; |
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347 | } |
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348 | |
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349 | void CodeGenerator2::visit( UntypedMemberExpr *memberExpr ) { |
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350 | assert( false ); |
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351 | } |
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352 | |
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353 | void CodeGenerator2::visit( MemberExpr *memberExpr ) { |
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354 | memberExpr->get_aggregate()->accept( *this ); |
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355 | before << "." << mangleName( memberExpr->get_member() ); |
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356 | } |
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357 | |
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358 | void CodeGenerator2::visit( VariableExpr *variableExpr ) { |
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359 | OperatorInfo opInfo; |
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360 | if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) { |
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361 | before << opInfo.symbol; |
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362 | } else { |
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363 | before << mangleName( variableExpr->get_var() ); |
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364 | } // if |
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365 | } |
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366 | |
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367 | void CodeGenerator2::visit( ConstantExpr *constantExpr ) { |
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368 | assert( constantExpr->get_constant() ); |
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369 | constantExpr->get_constant()->accept( *this ); |
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370 | } |
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371 | |
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372 | void CodeGenerator2::visit( SizeofExpr *sizeofExpr ) { |
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373 | before << "sizeof("; |
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374 | if ( sizeofExpr->get_isType() ) { |
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375 | before << genType( sizeofExpr->get_type(), "" ); |
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376 | } else { |
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377 | sizeofExpr->get_expr()->accept( *this ); |
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378 | } // if |
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379 | before << ")"; |
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380 | } |
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381 | |
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382 | void CodeGenerator2::visit( LogicalExpr *logicalExpr ) { |
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383 | before << "("; |
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384 | logicalExpr->get_arg1()->accept( *this ); |
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385 | if ( logicalExpr->get_isAnd() ) { |
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386 | before << " && "; |
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387 | } else { |
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388 | before << " || "; |
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389 | } // if |
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390 | logicalExpr->get_arg2()->accept( *this ); |
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391 | before << ")"; |
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392 | } |
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393 | |
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394 | void CodeGenerator2::visit( ConditionalExpr *conditionalExpr ) { |
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395 | before << "("; |
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396 | conditionalExpr->get_arg1()->accept( *this ); |
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397 | before << " ? "; |
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398 | conditionalExpr->get_arg2()->accept( *this ); |
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399 | before << " : "; |
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400 | conditionalExpr->get_arg3()->accept( *this ); |
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401 | before << ")"; |
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402 | } |
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403 | |
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404 | void CodeGenerator2::visit( CommaExpr *commaExpr ) { |
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405 | before << "("; |
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406 | commaExpr->get_arg1()->accept( *this ); |
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407 | before << " , "; |
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408 | commaExpr->get_arg2()->accept( *this ); |
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409 | before << ")"; |
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410 | } |
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411 | |
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412 | void CodeGenerator2::visit( TupleExpr *tupleExpr ) {} |
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413 | |
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414 | void CodeGenerator2::visit( TypeExpr *typeExpr ) {} |
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415 | |
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416 | |
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417 | //*** Statements |
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418 | void CodeGenerator2::visit( CompoundStmt *compoundStmt ) { |
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419 | std::list<Statement*> ks = compoundStmt->get_kids(); |
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420 | |
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421 | before << endl << string( cur_indent, ' ' ) << "{" << endl; |
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422 | |
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423 | cur_indent += CodeGenerator2::tabsize; |
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424 | |
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425 | for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end(); i++) { |
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426 | before << string( cur_indent, ' ' ) << printLabels( (*i)->get_labels() ) ; |
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427 | (*i)->accept(*this ); |
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428 | shift_left(); |
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429 | before << endl; |
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430 | } |
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431 | cur_indent -= CodeGenerator2::tabsize; |
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432 | |
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433 | before << string( cur_indent, ' ' ) << "}" << endl; |
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434 | } |
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435 | |
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436 | void CodeGenerator2::visit( ExprStmt *exprStmt ) { |
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437 | if ( exprStmt != 0 ) { |
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438 | exprStmt->get_expr()->accept( *this ); |
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439 | shift_left(); |
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440 | before << ";" ; |
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441 | } // if |
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442 | } |
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443 | |
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444 | void CodeGenerator2::visit( IfStmt *ifStmt ) { |
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445 | before << "if ("; |
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446 | ifStmt->get_condition()->accept(*this ); |
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447 | after += ")\n"; |
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448 | shift_left(); |
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449 | |
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450 | cur_indent += CodeGenerator2::tabsize; |
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451 | before << string( cur_indent, ' ' ); |
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452 | ifStmt->get_thenPart()->accept(*this ); |
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453 | cur_indent -= CodeGenerator2::tabsize; |
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454 | shift_left(); before << endl; |
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455 | |
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456 | if ( ifStmt->get_elsePart() != 0) { |
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457 | before << string( cur_indent, ' ' ) << " else " << endl ; |
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458 | |
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459 | cur_indent += CodeGenerator2::tabsize; |
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460 | ifStmt->get_elsePart()->accept(*this ); |
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461 | cur_indent -= CodeGenerator2::tabsize; |
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462 | } // if |
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463 | } |
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464 | |
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465 | void CodeGenerator2::visit( SwitchStmt *switchStmt ) { |
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466 | //before << /* "\r" << */ string( cur_indent, ' ' ) << CodeGenerator2::printLabels( switchStmt->get_labels() ) |
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467 | before << "switch (" ; |
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468 | switchStmt->get_condition()->accept(*this ); |
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469 | after += ")\n"; |
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470 | shift_left(); |
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471 | |
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472 | before << string( cur_indent, ' ' ) << "{" << std::endl; |
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473 | cur_indent += CodeGenerator2::tabsize; |
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474 | |
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475 | std::list< Statement * > stmts = switchStmt->get_branches(); |
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476 | bool lastBreak = false; |
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477 | |
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478 | // horrible, horrible hack |
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479 | if ( dynamic_cast<BranchStmt *>( stmts.back() ) != 0 ) { |
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480 | lastBreak = true; |
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481 | stmts.pop_back(); |
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482 | } // if |
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483 | acceptAll( stmts, *this ); |
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484 | if ( lastBreak ) { |
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485 | Statement *st = switchStmt->get_branches().back(); |
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486 | before << CodeGenerator2::printLabels( st->get_labels()); |
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487 | st->accept( *this ); |
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488 | } // if |
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489 | |
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490 | cur_indent -= CodeGenerator2::tabsize; |
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491 | |
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492 | before << /* "\r" << */ string( cur_indent, ' ' ) << "}" << endl ; |
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493 | } |
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494 | |
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495 | void CodeGenerator2::visit( CaseStmt *caseStmt ) { |
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496 | before << string( cur_indent, ' ' ); |
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497 | if ( caseStmt->isDefault()) |
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498 | before << "default " ; |
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499 | else { |
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500 | before << "case " ; |
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501 | caseStmt->get_condition()->accept(*this ); |
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502 | } // if |
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503 | after += ":\n"; |
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504 | shift_left(); |
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505 | |
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506 | std::list<Statement *> sts = caseStmt->get_statements(); |
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507 | |
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508 | cur_indent += CodeGenerator2::tabsize; |
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509 | for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end(); i++) { |
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510 | before << /* "\r" << */ string( cur_indent, ' ' ) << printLabels( (*i)->get_labels() ) ; |
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511 | (*i)->accept(*this ); |
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512 | shift_left(); |
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513 | before << ";" << endl; |
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514 | } |
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515 | cur_indent -= CodeGenerator2::tabsize; |
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516 | } |
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517 | |
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518 | void CodeGenerator2::visit( BranchStmt *branchStmt ) { |
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519 | switch ( branchStmt->get_type()) { |
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520 | case BranchStmt::Goto: |
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521 | if ( ! branchStmt->get_target().empty() ) |
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522 | before << "goto " << branchStmt->get_target(); |
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523 | else { |
---|
524 | if ( branchStmt->get_computedTarget() != 0 ) { |
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525 | before << "goto *"; |
---|
526 | branchStmt->get_computedTarget()->accept( *this ); |
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527 | } // if |
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528 | } // if |
---|
529 | break; |
---|
530 | case BranchStmt::Break: |
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531 | before << "break"; |
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532 | break; |
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533 | case BranchStmt::Continue: |
---|
534 | before << "continue"; |
---|
535 | break; |
---|
536 | } |
---|
537 | before << ";"; |
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538 | } |
---|
539 | |
---|
540 | |
---|
541 | void CodeGenerator2::visit( ReturnStmt *returnStmt ) { |
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542 | before << "return "; |
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543 | |
---|
544 | // xxx -- check for null expression; |
---|
545 | if ( returnStmt->get_expr() ) { |
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546 | returnStmt->get_expr()->accept( *this ); |
---|
547 | } // if |
---|
548 | after += ";"; |
---|
549 | } |
---|
550 | |
---|
551 | void CodeGenerator2::visit( WhileStmt *whileStmt ) { |
---|
552 | if ( whileStmt->get_isDoWhile() ) |
---|
553 | before << "do" ; |
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554 | else { |
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555 | before << "while (" ; |
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556 | whileStmt->get_condition()->accept(*this ); |
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557 | after += ")"; |
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558 | } // if |
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559 | after += "{\n"; |
---|
560 | shift_left(); |
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561 | |
---|
562 | whileStmt->get_body()->accept( *this ); |
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563 | |
---|
564 | before << /* "\r" << */ string( cur_indent, ' ' ) << "}" ; |
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565 | |
---|
566 | if ( whileStmt->get_isDoWhile() ) { |
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567 | before << " while (" ; |
---|
568 | whileStmt->get_condition()->accept(*this ); |
---|
569 | after += ");"; |
---|
570 | } // if |
---|
571 | |
---|
572 | after += "\n"; |
---|
573 | } |
---|
574 | |
---|
575 | void CodeGenerator2::visit( ForStmt *forStmt ) { |
---|
576 | before << "for ("; |
---|
577 | |
---|
578 | if ( forStmt->get_initialization() != 0 ) |
---|
579 | forStmt->get_initialization()->accept( *this ); |
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580 | else |
---|
581 | before << ";"; |
---|
582 | shift_left(); |
---|
583 | |
---|
584 | if ( forStmt->get_condition() != 0 ) |
---|
585 | forStmt->get_condition()->accept( *this ); |
---|
586 | shift_left(); before << ";"; |
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587 | |
---|
588 | if ( forStmt->get_increment() != 0 ) |
---|
589 | forStmt->get_increment()->accept( *this ); |
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590 | shift_left(); before << ")" << endl; |
---|
591 | |
---|
592 | if ( forStmt->get_body() != 0 ) { |
---|
593 | cur_indent += CodeGenerator2::tabsize; |
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594 | before << string( cur_indent, ' ' ) << CodeGenerator2::printLabels( forStmt->get_body()->get_labels() ); |
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595 | forStmt->get_body()->accept( *this ); |
---|
596 | cur_indent -= CodeGenerator2::tabsize; |
---|
597 | } // if |
---|
598 | } |
---|
599 | |
---|
600 | void CodeGenerator2::visit( NullStmt *nullStmt ) { |
---|
601 | //before << /* "\r" << */ string( cur_indent, ' ' ) << CodeGenerator2::printLabels( nullStmt->get_labels() ); |
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602 | before << "/* null statement */ ;"; |
---|
603 | } |
---|
604 | |
---|
605 | void CodeGenerator2::visit( DeclStmt *declStmt ) { |
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606 | declStmt->get_decl()->accept( *this ); |
---|
607 | |
---|
608 | if ( doSemicolon( declStmt->get_decl() ) ) { |
---|
609 | after += ";"; |
---|
610 | } // if |
---|
611 | shift_left(); |
---|
612 | } |
---|
613 | |
---|
614 | std::string CodeGenerator2::printLabels( std::list< Label > &l ) { |
---|
615 | std::string str( "" ); |
---|
616 | l.unique(); |
---|
617 | |
---|
618 | for ( std::list< Label >::iterator i = l.begin(); i != l.end(); i++ ) |
---|
619 | str += *i + ": "; |
---|
620 | |
---|
621 | return str; |
---|
622 | } |
---|
623 | |
---|
624 | void CodeGenerator2::shift_left() { |
---|
625 | before << after; |
---|
626 | after = ""; |
---|
627 | } |
---|
628 | |
---|
629 | void CodeGenerator2::handleStorageClass( Declaration *decl ) { |
---|
630 | switch ( decl->get_storageClass() ) { |
---|
631 | case Declaration::NoStorageClass: |
---|
632 | break; |
---|
633 | case Declaration::Extern: |
---|
634 | before << "extern "; |
---|
635 | break; |
---|
636 | case Declaration::Static: |
---|
637 | before << "static "; |
---|
638 | break; |
---|
639 | case Declaration::Auto: |
---|
640 | // silently drop storage class |
---|
641 | break; |
---|
642 | case Declaration::Register: |
---|
643 | before << "register "; |
---|
644 | break; |
---|
645 | case Declaration::Inline: |
---|
646 | before << "inline "; |
---|
647 | break; |
---|
648 | case Declaration::Fortran: |
---|
649 | before << "fortran "; |
---|
650 | break; |
---|
651 | } |
---|
652 | } |
---|
653 | } // namespace CodeGen |
---|