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 | // ExpressionNode.cc -- |
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8 | // |
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9 | // Author : Rodolfo G. Esteves |
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10 | // Created On : Sat May 16 13:17:07 2015 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Mon Jun 13 14:46:17 2016 |
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13 | // Update Count : 307 |
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14 | // |
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15 | |
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16 | #include <cassert> |
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17 | #include <cctype> |
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18 | #include <algorithm> |
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19 | #include <sstream> |
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20 | #include <cstdio> |
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21 | #include <climits> |
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22 | |
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23 | #include "ParseNode.h" |
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24 | #include "TypeData.h" |
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25 | #include "SynTree/Constant.h" |
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26 | #include "SynTree/Expression.h" |
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27 | #include "SynTree/Declaration.h" |
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28 | #include "Common/UnimplementedError.h" |
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29 | #include "parseutility.h" |
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30 | #include "Common/utility.h" |
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31 | |
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32 | using namespace std; |
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33 | |
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34 | ExpressionNode::ExpressionNode() : ParseNode() {} |
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35 | |
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36 | ExpressionNode::ExpressionNode( const string *name ) : ParseNode( name ) {} |
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37 | |
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38 | ExpressionNode::ExpressionNode( const ExpressionNode &other ) : ParseNode( other.name ), extension( other.extension ) { |
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39 | if ( other.argName ) { |
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40 | argName = other.argName->clone(); |
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41 | } else { |
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42 | argName = 0; |
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43 | } // if |
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44 | } |
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45 | |
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46 | ExpressionNode * ExpressionNode::set_argName( const std::string *aName ) { |
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47 | argName = new VarRefNode( aName ); |
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48 | return this; |
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49 | } |
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50 | |
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51 | ExpressionNode * ExpressionNode::set_argName( ExpressionNode *aDesignator ) { |
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52 | argName = aDesignator; |
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53 | return this; |
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54 | } |
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55 | |
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56 | void ExpressionNode::printDesignation( std::ostream &os, int indent ) const { |
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57 | if ( argName ) { |
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58 | os << string( indent, ' ' ) << "(designated by: "; |
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59 | argName->printOneLine( os, indent ); |
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60 | os << ")" << std::endl; |
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61 | } // if |
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62 | } |
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63 | |
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64 | //############################################################################## |
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65 | |
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66 | NullExprNode::NullExprNode() {} |
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67 | |
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68 | NullExprNode *NullExprNode::clone() const { |
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69 | return new NullExprNode(); |
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70 | } |
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71 | |
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72 | void NullExprNode::print( std::ostream & os, int indent ) const { |
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73 | printDesignation( os ); |
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74 | os << "null expression"; |
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75 | } |
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76 | |
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77 | void NullExprNode::printOneLine( std::ostream & os, int indent ) const { |
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78 | printDesignation( os ); |
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79 | os << "null"; |
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80 | } |
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81 | |
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82 | Expression *NullExprNode::build() const { |
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83 | return 0; |
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84 | } |
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85 | |
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86 | CommaExprNode *ExpressionNode::add_to_list( ExpressionNode *exp ) { |
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87 | return new CommaExprNode( this, exp ); |
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88 | } |
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89 | |
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90 | //############################################################################## |
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91 | |
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92 | static inline bool checkU( char c ) { return c == 'u' || c == 'U'; } |
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93 | static inline bool checkL( char c ) { return c == 'l' || c == 'L'; } |
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94 | static inline bool checkF( char c ) { return c == 'f' || c == 'F'; } |
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95 | static inline bool checkD( char c ) { return c == 'd' || c == 'D'; } |
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96 | static inline bool checkI( char c ) { return c == 'i' || c == 'I'; } |
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97 | static inline bool checkX( char c ) { return c == 'x' || c == 'X'; } |
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98 | |
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99 | // Difficult to separate extra parts of constants during lexing because actions are not allow in the middle of patterns: |
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100 | // |
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101 | // prefix action constant action suffix |
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102 | // |
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103 | // Alternatively, breaking a pattern using BEGIN does not work if the following pattern can be empty: |
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104 | // |
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105 | // constant BEGIN CONT ... |
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106 | // <CONT>(...)? BEGIN 0 ... // possible empty suffix |
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107 | // |
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108 | // because the CONT rule is NOT triggered if the pattern is empty. Hence, constants are reparsed here to determine their |
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109 | // type. |
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110 | |
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111 | ConstantNode::ConstantNode( Type t, string *inVal ) : type( t ), value( *inVal ) { |
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112 | // lexing divides constants into 4 kinds |
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113 | switch ( type ) { |
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114 | case Integer: |
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115 | { |
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116 | static const BasicType::Kind kind[2][3] = { |
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117 | { BasicType::SignedInt, BasicType::LongSignedInt, BasicType::LongLongSignedInt }, |
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118 | { BasicType::UnsignedInt, BasicType::LongUnsignedInt, BasicType::LongLongUnsignedInt }, |
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119 | }; |
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120 | bool dec = true, Unsigned = false; // decimal, unsigned constant |
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121 | int size; // 0 => int, 1 => long, 2 => long long |
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122 | unsigned long long v; // converted integral value |
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123 | size_t last = value.length() - 1; // last character of constant |
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124 | |
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125 | if ( value[0] == '0' ) { // octal constant ? |
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126 | dec = false; |
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127 | if ( last != 0 && checkX( value[1] ) ) { // hex constant ? |
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128 | sscanf( (char *)value.c_str(), "%llx", &v ); |
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129 | //printf( "%llx %llu\n", v, v ); |
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130 | } else { |
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131 | sscanf( (char *)value.c_str(), "%llo", &v ); |
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132 | //printf( "%llo %llu\n", v, v ); |
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133 | } // if |
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134 | } else { // decimal constant ? |
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135 | sscanf( (char *)value.c_str(), "%llu", &v ); |
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136 | //printf( "%llu %llu\n", v, v ); |
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137 | } // if |
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138 | |
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139 | if ( v <= INT_MAX ) { // signed int |
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140 | size = 0; |
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141 | } else if ( v <= UINT_MAX && ! dec ) { // unsigned int |
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142 | size = 0; |
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143 | Unsigned = true; // unsigned |
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144 | } else if ( v <= LONG_MAX ) { // signed long int |
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145 | size = 1; |
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146 | } else if ( v <= ULONG_MAX && ( ! dec || LONG_MAX == LLONG_MAX ) ) { // signed long int |
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147 | size = 1; |
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148 | Unsigned = true; // unsigned long int |
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149 | } else if ( v <= LLONG_MAX ) { // signed long long int |
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150 | size = 2; |
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151 | } else { // unsigned long long int |
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152 | size = 2; |
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153 | Unsigned = true; // unsigned long long int |
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154 | } // if |
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155 | |
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156 | if ( checkU( value[last] ) ) { // suffix 'u' ? |
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157 | Unsigned = true; |
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158 | if ( last > 0 && checkL( value[ last - 1 ] ) ) { // suffix 'l' ? |
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159 | size = 1; |
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160 | if ( last > 1 && checkL( value[ last - 2 ] ) ) { // suffix 'll' ? |
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161 | size = 2; |
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162 | } // if |
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163 | } // if |
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164 | } else if ( checkL( value[ last ] ) ) { // suffix 'l' ? |
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165 | size = 1; |
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166 | if ( last > 0 && checkL( value[ last - 1 ] ) ) { // suffix 'll' ? |
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167 | size = 2; |
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168 | if ( last > 1 && checkU( value[ last - 2 ] ) ) { // suffix 'u' ? |
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169 | Unsigned = true; |
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170 | } // if |
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171 | } else { |
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172 | if ( last > 0 && checkU( value[ last - 1 ] ) ) { // suffix 'u' ? |
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173 | Unsigned = true; |
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174 | } // if |
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175 | } // if |
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176 | } // if |
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177 | btype = kind[Unsigned][size]; // lookup constant type |
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178 | break; |
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179 | } |
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180 | case Float: |
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181 | { |
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182 | static const BasicType::Kind kind[2][3] = { |
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183 | { BasicType::Float, BasicType::Double, BasicType::LongDouble }, |
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184 | { BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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185 | }; |
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186 | bool complx = false; // real, complex |
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187 | int size = 1; // 0 => float, 1 => double (default), 2 => long double |
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188 | // floating-point constant has minimum of 2 characters: 1. or .1 |
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189 | size_t last = value.length() - 1; |
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190 | |
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191 | if ( checkI( value[last] ) ) { // imaginary ? |
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192 | complx = true; |
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193 | last -= 1; // backup one character |
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194 | } // if |
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195 | if ( checkF( value[last] ) ) { // float ? |
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196 | size = 0; |
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197 | } else if ( checkD( value[last] ) ) { // double ? |
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198 | size = 1; |
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199 | } else if ( checkL( value[last] ) ) { // long double ? |
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200 | size = 2; |
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201 | } // if |
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202 | if ( ! complx && checkI( value[last - 1] ) ) { // imaginary ? |
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203 | complx = true; |
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204 | } // if |
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205 | btype = kind[complx][size]; // lookup constant type |
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206 | break; |
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207 | } |
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208 | case Character: |
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209 | btype = BasicType::Char; // default |
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210 | if ( string( "LUu" ).find( value[0] ) != string::npos ) { |
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211 | // ??? |
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212 | } // if |
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213 | break; |
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214 | case String: |
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215 | // array of char |
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216 | if ( string( "LUu" ).find( value[0] ) != string::npos ) { |
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217 | if ( value[0] == 'u' && value[1] == '8' ) { |
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218 | // ??? |
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219 | } else { |
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220 | // ??? |
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221 | } // if |
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222 | } // if |
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223 | break; |
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224 | } // switch |
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225 | } // ConstantNode::ConstantNode |
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226 | |
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227 | ConstantNode *ConstantNode::appendstr( const std::string *newValue ) { |
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228 | assert( newValue != 0 ); |
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229 | assert( type == String ); |
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230 | |
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231 | // "abc" "def" "ghi" => "abcdefghi", remove new text from quotes and insert before last quote in old string. |
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232 | value.insert( value.length() - 1, newValue->substr( 1, newValue->length() - 2 ) ); |
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233 | |
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234 | delete newValue; // allocated by lexer |
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235 | return this; |
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236 | } |
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237 | |
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238 | void ConstantNode::printOneLine( std::ostream &os, int indent ) const { |
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239 | os << string( indent, ' ' ); |
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240 | printDesignation( os ); |
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241 | |
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242 | switch ( type ) { |
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243 | case Integer: |
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244 | case Float: |
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245 | os << value ; |
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246 | break; |
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247 | case Character: |
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248 | os << "'" << value << "'"; |
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249 | break; |
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250 | case String: |
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251 | os << '"' << value << '"'; |
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252 | break; |
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253 | } // switch |
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254 | |
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255 | os << ' '; |
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256 | } |
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257 | |
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258 | void ConstantNode::print( std::ostream &os, int indent ) const { |
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259 | printOneLine( os, indent ); |
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260 | os << endl; |
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261 | } |
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262 | |
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263 | Expression *ConstantNode::build() const { |
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264 | ::Type::Qualifiers q; // no qualifiers on constants |
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265 | |
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266 | switch ( get_type() ) { |
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267 | case String: |
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268 | { |
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269 | // string should probably be a primitive type |
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270 | ArrayType *at = new ArrayType( q, new BasicType( q, BasicType::Char ), |
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271 | new ConstantExpr( |
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272 | Constant( new BasicType( q, BasicType::UnsignedInt ), |
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273 | toString( value.size()+1-2 ) ) ), // +1 for '\0' and -2 for '"' |
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274 | false, false ); |
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275 | return new ConstantExpr( Constant( at, value ), maybeBuild< Expression >( get_argName() ) ); |
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276 | } |
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277 | default: |
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278 | return new ConstantExpr( Constant( new BasicType( q, btype ), get_value() ), maybeBuild< Expression >( get_argName() ) ); |
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279 | } |
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280 | } |
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281 | |
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282 | //############################################################################## |
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283 | |
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284 | VarRefNode::VarRefNode() : isLabel( false ) {} |
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285 | |
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286 | VarRefNode::VarRefNode( const string *name_, bool labelp ) : ExpressionNode( name_ ), isLabel( labelp ) {} |
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287 | |
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288 | VarRefNode::VarRefNode( const VarRefNode &other ) : ExpressionNode( other ), isLabel( other.isLabel ) { |
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289 | } |
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290 | |
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291 | Expression *VarRefNode::build() const { |
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292 | return new NameExpr( get_name(), maybeBuild< Expression >( get_argName() ) ); |
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293 | } |
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294 | |
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295 | void VarRefNode::printOneLine( std::ostream &os, int indent ) const { |
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296 | printDesignation( os ); |
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297 | os << get_name() << ' '; |
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298 | } |
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299 | |
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300 | void VarRefNode::print( std::ostream &os, int indent ) const { |
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301 | printDesignation( os ); |
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302 | os << string( indent, ' ' ) << "Referencing: "; |
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303 | os << "Variable: " << get_name(); |
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304 | os << endl; |
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305 | } |
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306 | |
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307 | //############################################################################## |
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308 | |
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309 | DesignatorNode::DesignatorNode( ExpressionNode *expr, bool isArrayIndex ) : isArrayIndex( isArrayIndex ) { |
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310 | set_argName( expr ); |
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311 | assert( get_argName() ); |
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312 | |
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313 | if ( ! isArrayIndex ) { |
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314 | if ( VarRefNode * var = dynamic_cast< VarRefNode * >( expr ) ) { |
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315 | |
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316 | stringstream ss( var->get_name() ); |
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317 | double value; |
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318 | if ( ss >> value ) { |
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319 | // this is a floating point constant. It MUST be |
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320 | // ".0" or ".1", otherwise the program is invalid |
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321 | if ( ! (var->get_name() == ".0" || var->get_name() == ".1") ) { |
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322 | throw SemanticError( "invalid designator name: " + var->get_name() ); |
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323 | } // if |
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324 | var->set_name( var->get_name().substr(1) ); |
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325 | } // if |
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326 | } // if |
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327 | } // if |
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328 | } |
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329 | |
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330 | DesignatorNode::DesignatorNode( const DesignatorNode &other ) : ExpressionNode( other ), isArrayIndex( other.isArrayIndex ) { |
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331 | } |
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332 | |
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333 | class DesignatorFixer : public Mutator { |
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334 | public: |
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335 | virtual Expression* mutate( NameExpr *nameExpr ) { |
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336 | if ( nameExpr->get_name() == "0" || nameExpr->get_name() == "1" ) { |
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337 | Constant val( new BasicType( Type::Qualifiers(), BasicType::SignedInt ), nameExpr->get_name() ); |
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338 | delete nameExpr; |
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339 | return new ConstantExpr( val ); |
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340 | } |
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341 | return nameExpr; |
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342 | } |
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343 | }; |
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344 | |
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345 | Expression *DesignatorNode::build() const { |
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346 | Expression * ret = maybeBuild<Expression>(get_argName()); |
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347 | |
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348 | if ( isArrayIndex ) { |
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349 | // need to traverse entire structure and change any instances of 0 or 1 to |
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350 | // ConstantExpr |
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351 | DesignatorFixer fixer; |
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352 | ret = ret->acceptMutator( fixer ); |
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353 | } // if |
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354 | |
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355 | return ret; |
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356 | } |
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357 | |
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358 | void DesignatorNode::printOneLine( std::ostream &os, int indent ) const { |
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359 | if ( get_argName() ) { |
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360 | if ( isArrayIndex ) { |
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361 | os << "["; |
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362 | get_argName()->printOneLine( os, indent ); |
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363 | os << "]"; |
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364 | } else { |
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365 | os << "."; |
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366 | get_argName()->printOneLine( os, indent ); |
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367 | } |
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368 | } // if |
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369 | } |
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370 | |
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371 | void DesignatorNode::print( std::ostream &os, int indent ) const { |
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372 | if ( get_argName() ) { |
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373 | if ( isArrayIndex ) { |
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374 | os << "["; |
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375 | get_argName()->print( os, indent ); |
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376 | os << "]"; |
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377 | } else { |
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378 | os << "."; |
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379 | get_argName()->print( os, indent ); |
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380 | } |
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381 | } // if |
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382 | } |
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383 | |
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384 | //############################################################################## |
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385 | |
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386 | static const char *opName[] = { |
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387 | "TupleC", "Comma", "TupleFieldSel", // "TuplePFieldSel", // n-adic |
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388 | // triadic |
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389 | "Cond", "NCond", |
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390 | // diadic |
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391 | "SizeOf", "AlignOf", "OffsetOf", "Attr", "?+?", "?-?", "?*?", "?/?", "?%?", "||", "&&", |
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392 | "?|?", "?&?", "?^?", "Cast", "?<<?", "?>>?", "?<?", "?>?", "?<=?", "?>=?", "?==?", "?!=?", |
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393 | "?=?", "?*=?", "?/=?", "?%=?", "?+=?", "?-=?", "?<<=?", "?>>=?", "?&=?", "?^=?", "?|=?", |
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394 | "?[?]", "FieldSel", "PFieldSel", "Range", |
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395 | // monadic |
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396 | "+?", "-?", "AddressOf", "*?", "!?", "~?", "++?", "?++", "--?", "?--", "&&" |
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397 | }; |
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398 | |
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399 | OperatorNode::OperatorNode( Type t ) : type( t ) {} |
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400 | |
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401 | OperatorNode::OperatorNode( const OperatorNode &other ) : ExpressionNode( other ), type( other.type ) { |
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402 | } |
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403 | |
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404 | OperatorNode::~OperatorNode() {} |
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405 | |
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406 | OperatorNode::Type OperatorNode::get_type( void ) const{ |
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407 | return type; |
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408 | } |
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409 | |
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410 | void OperatorNode::printOneLine( std::ostream &os, int indent ) const { |
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411 | printDesignation( os ); |
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412 | os << opName[ type ] << ' '; |
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413 | } |
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414 | |
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415 | void OperatorNode::print( std::ostream &os, int indent ) const{ |
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416 | printDesignation( os ); |
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417 | os << string( indent, ' ' ) << "Operator: " << opName[type] << endl; |
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418 | return; |
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419 | } |
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420 | |
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421 | const char *OperatorNode::get_typename( void ) const{ |
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422 | return opName[ type ]; |
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423 | } |
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424 | |
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425 | //############################################################################## |
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426 | |
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427 | CompositeExprNode::CompositeExprNode() : ExpressionNode(), function( 0 ), arguments( 0 ) { |
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428 | } |
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429 | |
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430 | CompositeExprNode::CompositeExprNode( const string *name_ ) : ExpressionNode( name_ ), function( 0 ), arguments( 0 ) { |
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431 | } |
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432 | |
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433 | CompositeExprNode::CompositeExprNode( ExpressionNode *f, ExpressionNode *args ): |
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434 | function( f ), arguments( args ) { |
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435 | } |
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436 | |
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437 | CompositeExprNode::CompositeExprNode( ExpressionNode *f, ExpressionNode *arg1, ExpressionNode *arg2): |
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438 | function( f ), arguments( arg1 ) { |
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439 | arguments->set_link( arg2 ); |
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440 | } |
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441 | |
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442 | CompositeExprNode::CompositeExprNode( const CompositeExprNode &other ) : ExpressionNode( other ), function( maybeClone( other.function ) ) { |
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443 | ParseNode *cur = other.arguments; |
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444 | while ( cur ) { |
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445 | if ( arguments ) { |
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446 | arguments->set_link( cur->clone() ); |
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447 | } else { |
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448 | arguments = ( ExpressionNode*)cur->clone(); |
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449 | } // if |
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450 | cur = cur->get_link(); |
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451 | } |
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452 | } |
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453 | |
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454 | CompositeExprNode::~CompositeExprNode() { |
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455 | delete function; |
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456 | delete arguments; |
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457 | } |
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458 | |
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459 | #include "Common/utility.h" |
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460 | |
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461 | Expression *CompositeExprNode::build() const { |
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462 | OperatorNode *op; |
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463 | std::list<Expression *> args; |
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464 | |
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465 | buildList( get_args(), args ); |
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466 | |
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467 | if ( ! ( op = dynamic_cast<OperatorNode *>( function ) ) ) { // function as opposed to operator |
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468 | return new UntypedExpr( maybeBuild<Expression>(function), args, maybeBuild< Expression >( get_argName() )); |
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469 | } // if |
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470 | |
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471 | switch ( op->get_type()) { |
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472 | case OperatorNode::Incr: |
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473 | case OperatorNode::Decr: |
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474 | case OperatorNode::IncrPost: |
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475 | case OperatorNode::DecrPost: |
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476 | case OperatorNode::Assign: |
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477 | case OperatorNode::MulAssn: |
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478 | case OperatorNode::DivAssn: |
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479 | case OperatorNode::ModAssn: |
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480 | case OperatorNode::PlusAssn: |
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481 | case OperatorNode::MinusAssn: |
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482 | case OperatorNode::LSAssn: |
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483 | case OperatorNode::RSAssn: |
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484 | case OperatorNode::AndAssn: |
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485 | case OperatorNode::ERAssn: |
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486 | case OperatorNode::OrAssn: |
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487 | // the rewrite rules for these expressions specify that the first argument has its address taken |
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488 | assert( ! args.empty() ); |
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489 | args.front() = new AddressExpr( args.front() ); |
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490 | break; |
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491 | default: // do nothing |
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492 | ; |
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493 | } // switch |
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494 | |
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495 | switch ( op->get_type() ) { |
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496 | case OperatorNode::Incr: |
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497 | case OperatorNode::Decr: |
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498 | case OperatorNode::IncrPost: |
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499 | case OperatorNode::DecrPost: |
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500 | case OperatorNode::Assign: |
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501 | case OperatorNode::MulAssn: |
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502 | case OperatorNode::DivAssn: |
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503 | case OperatorNode::ModAssn: |
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504 | case OperatorNode::PlusAssn: |
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505 | case OperatorNode::MinusAssn: |
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506 | case OperatorNode::LSAssn: |
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507 | case OperatorNode::RSAssn: |
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508 | case OperatorNode::AndAssn: |
---|
509 | case OperatorNode::ERAssn: |
---|
510 | case OperatorNode::OrAssn: |
---|
511 | case OperatorNode::Plus: |
---|
512 | case OperatorNode::Minus: |
---|
513 | case OperatorNode::Mul: |
---|
514 | case OperatorNode::Div: |
---|
515 | case OperatorNode::Mod: |
---|
516 | case OperatorNode::BitOr: |
---|
517 | case OperatorNode::BitAnd: |
---|
518 | case OperatorNode::Xor: |
---|
519 | case OperatorNode::LShift: |
---|
520 | case OperatorNode::RShift: |
---|
521 | case OperatorNode::LThan: |
---|
522 | case OperatorNode::GThan: |
---|
523 | case OperatorNode::LEThan: |
---|
524 | case OperatorNode::GEThan: |
---|
525 | case OperatorNode::Eq: |
---|
526 | case OperatorNode::Neq: |
---|
527 | case OperatorNode::Index: |
---|
528 | case OperatorNode::Range: |
---|
529 | case OperatorNode::UnPlus: |
---|
530 | case OperatorNode::UnMinus: |
---|
531 | case OperatorNode::PointTo: |
---|
532 | case OperatorNode::Neg: |
---|
533 | case OperatorNode::BitNeg: |
---|
534 | case OperatorNode::LabelAddress: |
---|
535 | return new UntypedExpr( new NameExpr( opName[ op->get_type() ] ), args ); |
---|
536 | case OperatorNode::AddressOf: |
---|
537 | assert( args.size() == 1 ); |
---|
538 | assert( args.front() ); |
---|
539 | |
---|
540 | return new AddressExpr( args.front() ); |
---|
541 | case OperatorNode::Cast: |
---|
542 | { |
---|
543 | TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()); |
---|
544 | assert( arg ); |
---|
545 | |
---|
546 | DeclarationNode *decl_node = arg->get_decl(); |
---|
547 | ExpressionNode *expr_node = dynamic_cast<ExpressionNode *>( arg->get_link()); |
---|
548 | |
---|
549 | Type *targetType = decl_node->buildType(); |
---|
550 | if ( dynamic_cast< VoidType* >( targetType ) ) { |
---|
551 | delete targetType; |
---|
552 | return new CastExpr( maybeBuild<Expression>(expr_node), maybeBuild< Expression >( get_argName() ) ); |
---|
553 | } else { |
---|
554 | return new CastExpr( maybeBuild<Expression>(expr_node),targetType, maybeBuild< Expression >( get_argName() ) ); |
---|
555 | } // if |
---|
556 | } |
---|
557 | case OperatorNode::FieldSel: |
---|
558 | { |
---|
559 | assert( args.size() == 2 ); |
---|
560 | |
---|
561 | NameExpr *member = dynamic_cast<NameExpr *>( args.back()); |
---|
562 | // TupleExpr *memberTup = dynamic_cast<TupleExpr *>( args.back()); |
---|
563 | |
---|
564 | if ( member != 0 ) { |
---|
565 | UntypedMemberExpr *ret = new UntypedMemberExpr( member->get_name(), args.front()); |
---|
566 | delete member; |
---|
567 | return ret; |
---|
568 | /* else if ( memberTup != 0 ) |
---|
569 | { |
---|
570 | UntypedMemberExpr *ret = new UntypedMemberExpr( memberTup->get_name(), args.front()); |
---|
571 | delete member; |
---|
572 | return ret; |
---|
573 | } */ |
---|
574 | } else |
---|
575 | assert( false ); |
---|
576 | } |
---|
577 | case OperatorNode::PFieldSel: |
---|
578 | { |
---|
579 | assert( args.size() == 2 ); |
---|
580 | |
---|
581 | NameExpr *member = dynamic_cast<NameExpr *>( args.back()); // modify for Tuples xxx |
---|
582 | assert( member != 0 ); |
---|
583 | |
---|
584 | UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) ); |
---|
585 | deref->get_args().push_back( args.front() ); |
---|
586 | |
---|
587 | UntypedMemberExpr *ret = new UntypedMemberExpr( member->get_name(), deref ); |
---|
588 | delete member; |
---|
589 | return ret; |
---|
590 | } |
---|
591 | case OperatorNode::SizeOf: |
---|
592 | { |
---|
593 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()) ) { |
---|
594 | return new SizeofExpr( arg->get_decl()->buildType()); |
---|
595 | } else { |
---|
596 | return new SizeofExpr( args.front()); |
---|
597 | } // if |
---|
598 | } |
---|
599 | case OperatorNode::AlignOf: |
---|
600 | { |
---|
601 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()) ) { |
---|
602 | return new AlignofExpr( arg->get_decl()->buildType()); |
---|
603 | } else { |
---|
604 | return new AlignofExpr( args.front()); |
---|
605 | } // if |
---|
606 | } |
---|
607 | case OperatorNode::OffsetOf: |
---|
608 | { |
---|
609 | assert( args.size() == 2 ); |
---|
610 | |
---|
611 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args() ) ) { |
---|
612 | NameExpr *member = dynamic_cast<NameExpr *>( args.back() ); |
---|
613 | assert( member != 0 ); |
---|
614 | |
---|
615 | return new UntypedOffsetofExpr( arg->get_decl()->buildType(), member->get_name() ); |
---|
616 | } else assert( false ); |
---|
617 | } |
---|
618 | case OperatorNode::Attr: |
---|
619 | { |
---|
620 | VarRefNode *var = dynamic_cast<VarRefNode *>( get_args()); |
---|
621 | assert( var ); |
---|
622 | if ( ! get_args()->get_link() ) { |
---|
623 | return new AttrExpr( maybeBuild<Expression>(var), ( Expression*)0); |
---|
624 | } else if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()->get_link()) ) { |
---|
625 | return new AttrExpr( maybeBuild<Expression>(var), arg->get_decl()->buildType()); |
---|
626 | } else { |
---|
627 | return new AttrExpr( maybeBuild<Expression>(var), args.back()); |
---|
628 | } // if |
---|
629 | } |
---|
630 | case OperatorNode::Or: |
---|
631 | case OperatorNode::And: |
---|
632 | assert( args.size() == 2); |
---|
633 | return new LogicalExpr( notZeroExpr( args.front() ), notZeroExpr( args.back() ), ( op->get_type() == OperatorNode::And ) ); |
---|
634 | case OperatorNode::Cond: |
---|
635 | { |
---|
636 | assert( args.size() == 3); |
---|
637 | std::list< Expression * >::const_iterator i = args.begin(); |
---|
638 | Expression *arg1 = notZeroExpr( *i++ ); |
---|
639 | Expression *arg2 = *i++; |
---|
640 | Expression *arg3 = *i++; |
---|
641 | return new ConditionalExpr( arg1, arg2, arg3 ); |
---|
642 | } |
---|
643 | case OperatorNode::NCond: |
---|
644 | throw UnimplementedError( "GNU 2-argument conditional expression" ); |
---|
645 | case OperatorNode::Comma: |
---|
646 | { |
---|
647 | assert( args.size() == 2); |
---|
648 | std::list< Expression * >::const_iterator i = args.begin(); |
---|
649 | Expression *ret = *i++; |
---|
650 | while ( i != args.end() ) { |
---|
651 | ret = new CommaExpr( ret, *i++ ); |
---|
652 | } |
---|
653 | return ret; |
---|
654 | } |
---|
655 | // Tuples |
---|
656 | case OperatorNode::TupleC: |
---|
657 | { |
---|
658 | TupleExpr *ret = new TupleExpr(); |
---|
659 | std::copy( args.begin(), args.end(), back_inserter( ret->get_exprs() ) ); |
---|
660 | return ret; |
---|
661 | } |
---|
662 | default: |
---|
663 | // shouldn't happen |
---|
664 | assert( false ); |
---|
665 | return 0; |
---|
666 | } // switch |
---|
667 | } |
---|
668 | |
---|
669 | void CompositeExprNode::printOneLine( std::ostream &os, int indent ) const { |
---|
670 | printDesignation( os ); |
---|
671 | os << "( "; |
---|
672 | function->printOneLine( os, indent ); |
---|
673 | for ( ExpressionNode *cur = arguments; cur != 0; cur = dynamic_cast< ExpressionNode* >( cur->get_link() ) ) { |
---|
674 | cur->printOneLine( os, indent ); |
---|
675 | } // for |
---|
676 | os << ") "; |
---|
677 | } |
---|
678 | |
---|
679 | void CompositeExprNode::print( std::ostream &os, int indent ) const { |
---|
680 | printDesignation( os ); |
---|
681 | os << string( indent, ' ' ) << "Application of: " << endl; |
---|
682 | function->print( os, indent + ParseNode::indent_by ); |
---|
683 | |
---|
684 | os << string( indent, ' ' ) ; |
---|
685 | if ( arguments ) { |
---|
686 | os << "... on arguments: " << endl; |
---|
687 | arguments->printList( os, indent + ParseNode::indent_by ); |
---|
688 | } else |
---|
689 | os << "... on no arguments: " << endl; |
---|
690 | } |
---|
691 | |
---|
692 | void CompositeExprNode::set_function( ExpressionNode *f ) { |
---|
693 | function = f; |
---|
694 | } |
---|
695 | |
---|
696 | void CompositeExprNode::set_args( ExpressionNode *args ) { |
---|
697 | arguments = args; |
---|
698 | } |
---|
699 | |
---|
700 | ExpressionNode *CompositeExprNode::get_function( void ) const { |
---|
701 | return function; |
---|
702 | } |
---|
703 | |
---|
704 | ExpressionNode *CompositeExprNode::get_args( void ) const { |
---|
705 | return arguments; |
---|
706 | } |
---|
707 | |
---|
708 | void CompositeExprNode::add_arg( ExpressionNode *arg ) { |
---|
709 | if ( arguments ) |
---|
710 | arguments->set_link( arg ); |
---|
711 | else |
---|
712 | set_args( arg ); |
---|
713 | } |
---|
714 | |
---|
715 | //############################################################################## |
---|
716 | |
---|
717 | Expression *AsmExprNode::build() const { |
---|
718 | return new AsmExpr( maybeBuild< Expression >( inout ), (ConstantExpr *)maybeBuild<Expression>(constraint), maybeBuild<Expression>(operand) ); |
---|
719 | } |
---|
720 | |
---|
721 | void AsmExprNode::print( std::ostream &os, int indent ) const { |
---|
722 | os << string( indent, ' ' ) << "Assembler Expression:" << endl; |
---|
723 | if ( inout ) { |
---|
724 | os << string( indent, ' ' ) << "inout: " << std::endl; |
---|
725 | inout->print( os, indent + 2 ); |
---|
726 | } // if |
---|
727 | if ( constraint ) { |
---|
728 | os << string( indent, ' ' ) << "constraint: " << std::endl; |
---|
729 | constraint->print( os, indent + 2 ); |
---|
730 | } // if |
---|
731 | if ( operand ) { |
---|
732 | os << string( indent, ' ' ) << "operand: " << std::endl; |
---|
733 | operand->print( os, indent + 2 ); |
---|
734 | } // if |
---|
735 | } |
---|
736 | |
---|
737 | void AsmExprNode::printOneLine( std::ostream &os, int indent ) const { |
---|
738 | printDesignation( os ); |
---|
739 | os << "( "; |
---|
740 | if ( inout ) inout->printOneLine( os, indent + 2 ); |
---|
741 | os << ", "; |
---|
742 | if ( constraint ) constraint->printOneLine( os, indent + 2 ); |
---|
743 | os << ", "; |
---|
744 | if ( operand ) operand->printOneLine( os, indent + 2 ); |
---|
745 | os << ") "; |
---|
746 | } |
---|
747 | |
---|
748 | //############################################################################## |
---|
749 | |
---|
750 | void LabelNode::print( std::ostream &os, int indent ) const {} |
---|
751 | |
---|
752 | void LabelNode::printOneLine( std::ostream &os, int indent ) const {} |
---|
753 | |
---|
754 | //############################################################################## |
---|
755 | |
---|
756 | CommaExprNode::CommaExprNode(): CompositeExprNode( new OperatorNode( OperatorNode::Comma )) {} |
---|
757 | |
---|
758 | CommaExprNode::CommaExprNode( ExpressionNode *exp ) : CompositeExprNode( new OperatorNode( OperatorNode::Comma ), exp ) { |
---|
759 | } |
---|
760 | |
---|
761 | CommaExprNode::CommaExprNode( ExpressionNode *exp1, ExpressionNode *exp2) : CompositeExprNode( new OperatorNode( OperatorNode::Comma ), exp1, exp2) { |
---|
762 | } |
---|
763 | |
---|
764 | CommaExprNode *CommaExprNode::add_to_list( ExpressionNode *exp ) { |
---|
765 | add_arg( exp ); |
---|
766 | |
---|
767 | return this; |
---|
768 | } |
---|
769 | |
---|
770 | CommaExprNode::CommaExprNode( const CommaExprNode &other ) : CompositeExprNode( other ) { |
---|
771 | } |
---|
772 | |
---|
773 | //############################################################################## |
---|
774 | |
---|
775 | ValofExprNode::ValofExprNode( StatementNode *s ): body( s ) {} |
---|
776 | |
---|
777 | ValofExprNode::ValofExprNode( const ValofExprNode &other ) : ExpressionNode( other ), body( maybeClone( body ) ) { |
---|
778 | } |
---|
779 | |
---|
780 | ValofExprNode::~ValofExprNode() { |
---|
781 | delete body; |
---|
782 | } |
---|
783 | |
---|
784 | void ValofExprNode::print( std::ostream &os, int indent ) const { |
---|
785 | printDesignation( os ); |
---|
786 | os << string( indent, ' ' ) << "Valof Expression:" << std::endl; |
---|
787 | get_body()->print( os, indent + 4); |
---|
788 | } |
---|
789 | |
---|
790 | void ValofExprNode::printOneLine( std::ostream &, int indent ) const { |
---|
791 | assert( false ); |
---|
792 | } |
---|
793 | |
---|
794 | Expression *ValofExprNode::build() const { |
---|
795 | return new UntypedValofExpr ( maybeBuild<Statement>(get_body()), maybeBuild< Expression >( get_argName() ) ); |
---|
796 | } |
---|
797 | |
---|
798 | //############################################################################## |
---|
799 | |
---|
800 | ForCtlExprNode::ForCtlExprNode( ParseNode *init_, ExpressionNode *cond, ExpressionNode *incr ) throw ( SemanticError ) : condition( cond ), change( incr ) { |
---|
801 | if ( init_ == 0 ) |
---|
802 | init = 0; |
---|
803 | else { |
---|
804 | DeclarationNode *decl; |
---|
805 | ExpressionNode *exp; |
---|
806 | |
---|
807 | if (( decl = dynamic_cast<DeclarationNode *>(init_) ) != 0) |
---|
808 | init = new StatementNode( decl ); |
---|
809 | else if (( exp = dynamic_cast<ExpressionNode *>( init_)) != 0) |
---|
810 | init = new StatementNode( StatementNode::Exp, exp ); |
---|
811 | else |
---|
812 | throw SemanticError("Error in for control expression"); |
---|
813 | } |
---|
814 | } |
---|
815 | |
---|
816 | ForCtlExprNode::ForCtlExprNode( const ForCtlExprNode &other ) |
---|
817 | : ExpressionNode( other ), init( maybeClone( other.init ) ), condition( maybeClone( other.condition ) ), change( maybeClone( other.change ) ) { |
---|
818 | } |
---|
819 | |
---|
820 | ForCtlExprNode::~ForCtlExprNode() { |
---|
821 | delete init; |
---|
822 | delete condition; |
---|
823 | delete change; |
---|
824 | } |
---|
825 | |
---|
826 | Expression *ForCtlExprNode::build() const { |
---|
827 | // this shouldn't be used! |
---|
828 | assert( false ); |
---|
829 | return 0; |
---|
830 | } |
---|
831 | |
---|
832 | void ForCtlExprNode::print( std::ostream &os, int indent ) const{ |
---|
833 | os << string( indent,' ' ) << "For Control Expression -- :" << endl; |
---|
834 | |
---|
835 | os << string( indent + 2, ' ' ) << "initialization:" << endl; |
---|
836 | if ( init != 0 ) |
---|
837 | init->printList( os, indent + 4 ); |
---|
838 | |
---|
839 | os << string( indent + 2, ' ' ) << "condition: " << endl; |
---|
840 | if ( condition != 0 ) |
---|
841 | condition->print( os, indent + 4 ); |
---|
842 | os << string( indent + 2, ' ' ) << "increment: " << endl; |
---|
843 | if ( change != 0 ) |
---|
844 | change->print( os, indent + 4 ); |
---|
845 | } |
---|
846 | |
---|
847 | void ForCtlExprNode::printOneLine( std::ostream &, int indent ) const { |
---|
848 | assert( false ); |
---|
849 | } |
---|
850 | |
---|
851 | //############################################################################## |
---|
852 | |
---|
853 | TypeValueNode::TypeValueNode( DeclarationNode *decl ) : decl( decl ) { |
---|
854 | } |
---|
855 | |
---|
856 | TypeValueNode::TypeValueNode( const TypeValueNode &other ) : ExpressionNode( other ), decl( maybeClone( other.decl ) ) { |
---|
857 | } |
---|
858 | |
---|
859 | Expression *TypeValueNode::build() const { |
---|
860 | return new TypeExpr( decl->buildType() ); |
---|
861 | } |
---|
862 | |
---|
863 | void TypeValueNode::print( std::ostream &os, int indent ) const { |
---|
864 | os << std::string( indent, ' ' ) << "Type:"; |
---|
865 | get_decl()->print( os, indent + 2); |
---|
866 | } |
---|
867 | |
---|
868 | void TypeValueNode::printOneLine( std::ostream &os, int indent ) const { |
---|
869 | os << "Type:"; |
---|
870 | get_decl()->print( os, indent + 2); |
---|
871 | } |
---|
872 | |
---|
873 | |
---|
874 | CompoundLiteralNode::CompoundLiteralNode( DeclarationNode *type, InitializerNode *kids ) : type( type ), kids( kids ) {} |
---|
875 | CompoundLiteralNode::CompoundLiteralNode( const CompoundLiteralNode &other ) : ExpressionNode( other ), type( other.type ), kids( other.kids ) {} |
---|
876 | |
---|
877 | CompoundLiteralNode::~CompoundLiteralNode() { |
---|
878 | delete kids; |
---|
879 | delete type; |
---|
880 | } |
---|
881 | |
---|
882 | CompoundLiteralNode *CompoundLiteralNode::clone() const { |
---|
883 | return new CompoundLiteralNode( *this ); |
---|
884 | } |
---|
885 | |
---|
886 | void CompoundLiteralNode::print( std::ostream &os, int indent ) const { |
---|
887 | os << string( indent,' ' ) << "CompoundLiteralNode:" << endl; |
---|
888 | |
---|
889 | os << string( indent + 2, ' ' ) << "type:" << endl; |
---|
890 | if ( type != 0 ) |
---|
891 | type->print( os, indent + 4 ); |
---|
892 | |
---|
893 | os << string( indent + 2, ' ' ) << "initialization:" << endl; |
---|
894 | if ( kids != 0 ) |
---|
895 | kids->printList( os, indent + 4 ); |
---|
896 | } |
---|
897 | |
---|
898 | void CompoundLiteralNode::printOneLine( std::ostream &os, int indent ) const { |
---|
899 | os << "( "; |
---|
900 | if ( type ) type->print( os ); |
---|
901 | os << ", "; |
---|
902 | if ( kids ) kids->printOneLine( os ); |
---|
903 | os << ") "; |
---|
904 | } |
---|
905 | |
---|
906 | Expression *CompoundLiteralNode::build() const { |
---|
907 | Declaration * newDecl = maybeBuild<Declaration>(type); // compound literal type |
---|
908 | if ( DeclarationWithType * newDeclWithType = dynamic_cast< DeclarationWithType * >( newDecl ) ) { // non-sue compound-literal type |
---|
909 | return new CompoundLiteralExpr( newDeclWithType->get_type(), maybeBuild<Initializer>(kids) ); |
---|
910 | // these types do not have associated type information |
---|
911 | } else if ( StructDecl * newDeclStructDecl = dynamic_cast< StructDecl * >( newDecl ) ) { |
---|
912 | return new CompoundLiteralExpr( new StructInstType( Type::Qualifiers(), newDeclStructDecl->get_name() ), maybeBuild<Initializer>(kids) ); |
---|
913 | } else if ( UnionDecl * newDeclUnionDecl = dynamic_cast< UnionDecl * >( newDecl ) ) { |
---|
914 | return new CompoundLiteralExpr( new UnionInstType( Type::Qualifiers(), newDeclUnionDecl->get_name() ), maybeBuild<Initializer>(kids) ); |
---|
915 | } else if ( EnumDecl * newDeclEnumDecl = dynamic_cast< EnumDecl * >( newDecl ) ) { |
---|
916 | return new CompoundLiteralExpr( new EnumInstType( Type::Qualifiers(), newDeclEnumDecl->get_name() ), maybeBuild<Initializer>(kids) ); |
---|
917 | } else { |
---|
918 | assert( false ); |
---|
919 | } // if |
---|
920 | } |
---|
921 | |
---|
922 | |
---|
923 | ExpressionNode *flattenCommas( ExpressionNode *list ) { |
---|
924 | if ( CompositeExprNode *composite = dynamic_cast< CompositeExprNode * >( list ) ) { |
---|
925 | OperatorNode *op; |
---|
926 | if ( ( op = dynamic_cast< OperatorNode * >( composite->get_function() )) && ( op->get_type() == OperatorNode::Comma ) ) { |
---|
927 | if ( ExpressionNode *next = dynamic_cast< ExpressionNode * >( list->get_link() ) ) |
---|
928 | composite->add_arg( next ); |
---|
929 | return flattenCommas( composite->get_args() ); |
---|
930 | } // if |
---|
931 | } // if |
---|
932 | |
---|
933 | if ( ExpressionNode *next = dynamic_cast< ExpressionNode * >( list->get_link() ) ) |
---|
934 | list->set_next( flattenCommas( next ) ); |
---|
935 | |
---|
936 | return list; |
---|
937 | } |
---|
938 | |
---|
939 | ExpressionNode *tupleContents( ExpressionNode *tuple ) { |
---|
940 | if ( CompositeExprNode *composite = dynamic_cast< CompositeExprNode * >( tuple ) ) { |
---|
941 | OperatorNode *op = 0; |
---|
942 | if ( ( op = dynamic_cast< OperatorNode * >( composite->get_function() )) && ( op->get_type() == OperatorNode::TupleC ) ) |
---|
943 | return composite->get_args(); |
---|
944 | } // if |
---|
945 | return tuple; |
---|
946 | } |
---|
947 | |
---|
948 | // Local Variables: // |
---|
949 | // tab-width: 4 // |
---|
950 | // mode: c++ // |
---|
951 | // compile-command: "make install" // |
---|
952 | // End: // |
---|