1 | #include <cassert> |
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2 | #include <cctype> |
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3 | #include <algorithm> |
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4 | |
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5 | #include "ParseNode.h" |
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6 | #include "SynTree/Type.h" |
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7 | #include "SynTree/Constant.h" |
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8 | #include "SynTree/Expression.h" |
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9 | #include "SynTree/Declaration.h" |
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10 | #include "UnimplementedError.h" |
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11 | #include "parseutility.h" |
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12 | #include "utility.h" |
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13 | |
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14 | using namespace std; |
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15 | |
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16 | ExpressionNode::ExpressionNode() : ParseNode(), argName( 0 ) {} |
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17 | |
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18 | ExpressionNode::ExpressionNode(string *name_) : ParseNode( *name_ ), argName( 0 ) { |
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19 | delete name_; |
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20 | } |
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21 | |
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22 | ExpressionNode::ExpressionNode( const ExpressionNode &other ) : ParseNode( other.name ) { |
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23 | if ( other.argName ) { |
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24 | argName = other.argName->clone(); |
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25 | } else { |
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26 | argName = 0; |
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27 | } |
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28 | } |
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29 | |
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30 | ExpressionNode * ExpressionNode::set_asArgName( std::string *aName ) { |
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31 | argName = new VarRefNode(aName); |
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32 | return this; |
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33 | } |
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34 | |
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35 | ExpressionNode * ExpressionNode::set_asArgName( ExpressionNode *aDesignator ) { |
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36 | argName = aDesignator; |
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37 | return this; |
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38 | } |
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39 | |
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40 | void ExpressionNode::printDesignation( std::ostream &os, int indent ) const { |
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41 | if ( argName ) { |
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42 | os << string(' ', indent) << "(designated by: "; |
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43 | argName->printOneLine(os, indent ); |
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44 | os << ")" << std::endl; |
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45 | } |
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46 | } |
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47 | |
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48 | NullExprNode::NullExprNode() {} |
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49 | |
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50 | NullExprNode *NullExprNode::clone() const { |
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51 | return new NullExprNode(); |
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52 | } |
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53 | |
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54 | void NullExprNode::print(std::ostream & os, int indent) const { |
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55 | printDesignation(os); |
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56 | os << "null expression"; |
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57 | } |
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58 | |
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59 | void NullExprNode::printOneLine(std::ostream & os, int indent) const { |
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60 | printDesignation(os); |
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61 | os << "null"; |
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62 | } |
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63 | |
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64 | Expression *NullExprNode::build() const { |
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65 | return 0; |
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66 | } |
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67 | |
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68 | CommaExprNode *ExpressionNode::add_to_list(ExpressionNode *exp){ |
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69 | return new CommaExprNode(this, exp ); |
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70 | } |
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71 | |
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72 | // enum ConstantNode::Type = { Integer, Float, Character, String, Range } |
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73 | |
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74 | ConstantNode::ConstantNode(void) : ExpressionNode(), sign(true), longs(0), size(0) {} |
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75 | |
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76 | ConstantNode::ConstantNode(string *name_) : ExpressionNode(name_), sign(true), longs(0), size(0) {} |
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77 | |
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78 | ConstantNode::ConstantNode(Type t, string *inVal) : type(t), sign(true), longs(0), size(0) { |
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79 | if ( inVal ) { |
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80 | value = *inVal; |
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81 | delete inVal; |
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82 | } else { |
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83 | value = ""; |
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84 | } |
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85 | |
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86 | classify(value); |
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87 | } |
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88 | |
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89 | ConstantNode::ConstantNode( const ConstantNode &other ) |
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90 | : ExpressionNode( other ), type( other.type ), value( other.value ), sign( other.sign ), base( other.base ), longs( other.longs ), size( other.size ) { |
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91 | } |
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92 | |
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93 | // for some reason, std::tolower doesn't work as an argument to std::transform in g++ 3.1 |
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94 | inline char tolower_hack( char c ) { |
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95 | return std::tolower( c ); |
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96 | } |
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97 | |
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98 | void ConstantNode::classify(std::string &str){ |
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99 | switch (type){ |
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100 | case Integer: |
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101 | case Float: |
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102 | { |
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103 | std::string sfx(""); |
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104 | char c; |
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105 | int i = str.length() - 1; |
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106 | |
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107 | while ( i >= 0 && !isxdigit(c = str.at(i--)) ) |
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108 | sfx += c; |
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109 | |
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110 | value = str.substr( 0, i + 2 ); |
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111 | |
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112 | // get rid of underscores |
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113 | value.erase(remove(value.begin(), value.end(), '_'), value.end()); |
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114 | |
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115 | std::transform(sfx.begin(), sfx.end(), sfx.begin(), tolower_hack); |
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116 | |
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117 | if ( sfx.find("ll") != string::npos ){ |
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118 | longs = 2; |
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119 | } else if (sfx.find("l") != string::npos ){ |
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120 | longs = 1; |
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121 | } |
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122 | |
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123 | assert((longs >= 0) && (longs <= 2)); |
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124 | |
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125 | if ( sfx.find("u") != string::npos ) |
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126 | sign = false; |
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127 | |
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128 | break; |
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129 | } |
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130 | case Character: |
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131 | { |
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132 | // remove underscores from hex and oct escapes |
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133 | if (str.substr(1,2) == "\\x") |
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134 | value.erase(remove(value.begin(), value.end(), '_'), value.end()); |
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135 | |
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136 | break; |
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137 | } |
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138 | default: |
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139 | // shouldn't be here |
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140 | ; |
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141 | } |
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142 | } |
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143 | |
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144 | ConstantNode::Type ConstantNode::get_type(void) const { |
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145 | return type; |
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146 | } |
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147 | |
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148 | ConstantNode *ConstantNode::append( std::string *newValue ) { |
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149 | if ( newValue ) { |
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150 | if (type == String){ |
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151 | std::string temp = *newValue; |
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152 | value.resize( value.size() - 1 ); |
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153 | value += newValue->substr(1, newValue->size()); |
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154 | } else |
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155 | value += *newValue; |
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156 | |
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157 | delete newValue; |
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158 | } |
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159 | return this; |
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160 | } |
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161 | |
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162 | void ConstantNode::printOneLine(std::ostream &os, int indent ) const { |
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163 | os << string(indent, ' '); |
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164 | printDesignation(os); |
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165 | |
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166 | switch ( type ) { |
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167 | /* integers */ |
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168 | case Integer: |
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169 | os << value ; |
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170 | break; |
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171 | case Float: |
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172 | os << value ; |
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173 | break; |
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174 | |
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175 | case Character: |
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176 | os << "'" << value << "'"; |
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177 | break; |
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178 | |
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179 | case String: |
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180 | os << '"' << value << '"'; |
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181 | break; |
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182 | } |
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183 | |
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184 | os << ' '; |
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185 | } |
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186 | |
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187 | void ConstantNode::print(std::ostream &os, int indent ) const { |
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188 | printOneLine( os, indent ); |
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189 | os << endl; |
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190 | } |
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191 | |
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192 | Expression *ConstantNode::build() const { |
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193 | ::Type::Qualifiers q; |
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194 | BasicType *bt; |
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195 | |
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196 | switch (get_type()){ |
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197 | case Integer: |
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198 | /* Cfr. standard 6.4.4.1 */ |
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199 | //bt.set_kind(BasicType::SignedInt); |
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200 | bt = new BasicType(q, BasicType::SignedInt); |
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201 | break; |
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202 | case Float: |
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203 | bt = new BasicType(q, BasicType::Float); |
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204 | break; |
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205 | case Character: |
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206 | bt = new BasicType(q, BasicType::Char); |
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207 | break; |
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208 | case String: |
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209 | // string should probably be a primitive type |
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210 | ArrayType *at; |
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211 | std::string value = get_value(); |
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212 | at = new ArrayType(q, new BasicType(q, BasicType::Char), |
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213 | new ConstantExpr( Constant( new BasicType(q, BasicType::SignedInt), |
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214 | toString( value.size() - 1 ) ) ), // account for '\0' |
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215 | false, false ); |
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216 | return new ConstantExpr( Constant(at, value), maybeBuild< Expression >( get_argName() ) ); |
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217 | } |
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218 | return new ConstantExpr( Constant(bt, get_value()), maybeBuild< Expression >( get_argName() ) ); |
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219 | } |
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220 | |
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221 | VarRefNode::VarRefNode() : isLabel(false) {} |
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222 | |
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223 | VarRefNode::VarRefNode(string *name_, bool labelp) : ExpressionNode(name_), isLabel(labelp) {} |
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224 | |
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225 | VarRefNode::VarRefNode( const VarRefNode &other ) : ExpressionNode( other ), isLabel( other.isLabel ) { |
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226 | } |
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227 | |
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228 | Expression *VarRefNode::build() const { |
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229 | return new NameExpr( get_name(), maybeBuild< Expression >( get_argName() ) ); |
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230 | } |
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231 | |
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232 | void VarRefNode::printOneLine(std::ostream &os, int indent ) const { |
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233 | printDesignation(os); |
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234 | os << get_name() << ' '; |
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235 | } |
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236 | |
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237 | void VarRefNode::print(std::ostream &os, int indent ) const { |
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238 | printDesignation(os); |
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239 | os << '\r' << string(indent, ' ') << "Referencing: "; |
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240 | os << "Variable: " << get_name(); |
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241 | os << endl; |
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242 | } |
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243 | |
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244 | OperatorNode::OperatorNode(Type t) : type(t) {} |
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245 | |
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246 | OperatorNode::OperatorNode( const OperatorNode &other ) : ExpressionNode( other ), type( other.type ) { |
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247 | } |
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248 | |
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249 | OperatorNode::~OperatorNode() {} |
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250 | |
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251 | OperatorNode::Type OperatorNode::get_type(void) const{ |
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252 | return type; |
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253 | } |
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254 | |
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255 | void OperatorNode::printOneLine( std::ostream &os, int indent ) const { |
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256 | printDesignation(os); |
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257 | os << OpName[ type ] << ' '; |
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258 | } |
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259 | |
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260 | void OperatorNode::print( std::ostream &os, int indent ) const{ |
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261 | printDesignation(os); |
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262 | os << '\r' << string(indent, ' ') << "Operator: " << OpName[type] << endl; |
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263 | return; |
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264 | } |
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265 | |
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266 | std::string OperatorNode::get_typename(void) const{ |
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267 | return string(OpName[ type ]); |
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268 | } |
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269 | |
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270 | const char *OperatorNode::OpName[] = { |
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271 | "TupleC", "Comma", "TupleFieldSel",// "TuplePFieldSel", //n-adic |
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272 | // triadic |
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273 | "Cond", "NCond", |
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274 | // diadic |
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275 | "SizeOf", "AlignOf", "Attr", "CompLit", "Plus", "Minus", "Mul", "Div", "Mod", "Or", |
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276 | "And", "BitOr", "BitAnd", "Xor", "Cast", "LShift", "RShift", "LThan", "GThan", |
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277 | "LEThan", "GEThan", "Eq", "Neq", "Assign", "MulAssn", "DivAssn", "ModAssn", "PlusAssn", |
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278 | "MinusAssn", "LSAssn", "RSAssn", "AndAssn", "ERAssn", "OrAssn", "Index", "FieldSel","PFieldSel", |
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279 | "Range", |
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280 | // monadic |
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281 | "UnPlus", "UnMinus", "AddressOf", "PointTo", "Neg", "BitNeg", "Incr", "IncrPost", "Decr", "DecrPost", "LabelAddress" |
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282 | }; |
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283 | |
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284 | CompositeExprNode::CompositeExprNode(void) : ExpressionNode(), function( 0 ), arguments( 0 ) { |
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285 | } |
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286 | |
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287 | CompositeExprNode::CompositeExprNode(string *name_) : ExpressionNode(name_), function( 0 ), arguments( 0 ) { |
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288 | } |
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289 | |
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290 | CompositeExprNode::CompositeExprNode(ExpressionNode *f, ExpressionNode *args): |
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291 | function(f), arguments(args) { |
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292 | } |
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293 | |
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294 | CompositeExprNode::CompositeExprNode(ExpressionNode *f, ExpressionNode *arg1, ExpressionNode *arg2): |
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295 | function(f), arguments(arg1) { |
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296 | arguments->set_link(arg2); |
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297 | } |
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298 | |
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299 | CompositeExprNode::CompositeExprNode( const CompositeExprNode &other ) : ExpressionNode( other ), function( maybeClone( other.function ) ) { |
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300 | ParseNode *cur = other.arguments; |
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301 | while ( cur ) { |
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302 | if ( arguments ) { |
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303 | arguments->set_link( cur->clone() ); |
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304 | } else { |
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305 | arguments = (ExpressionNode*)cur->clone(); |
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306 | } |
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307 | cur = cur->get_link(); |
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308 | } |
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309 | } |
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310 | |
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311 | CompositeExprNode::~CompositeExprNode() { |
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312 | delete function; |
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313 | delete arguments; |
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314 | } |
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315 | |
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316 | // the names that users use to define operator functions |
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317 | static const char *opFuncName[] = { |
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318 | "", "", "", |
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319 | "", "", |
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320 | // diadic |
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321 | "", "", "", "", "?+?", "?-?", "?*?", "?/?", "?%?", "", "", |
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322 | "?|?", "?&?", "?^?", "", "?<<?", "?>>?", "?<?", "?>?", "?<=?", |
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323 | "?>=?", "?==?", "?!=?", "?=?", "?*=?", "?/=?", "?%=?", "?+=?", "?-=?", |
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324 | "?<<=?", "?>>=?", "?&=?", "?^=?", "?|=?", "?[?]", "","","Range", |
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325 | // monadic |
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326 | "+?", "-?", "", "*?", "!?", "~?", "++?", "?++", "--?", "?--", "LabAddress" |
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327 | }; |
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328 | |
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329 | #include "utility.h" |
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330 | |
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331 | Expression *CompositeExprNode::build() const { |
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332 | OperatorNode *op; |
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333 | std::list<Expression *> args; |
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334 | |
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335 | buildList(get_args(), args); |
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336 | |
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337 | if ( ! ( op = dynamic_cast<OperatorNode *>(function)) ) { |
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338 | // a function as opposed to an operator |
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339 | return new UntypedExpr(function->build(), args, maybeBuild< Expression >( get_argName() )); |
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340 | } else { |
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341 | switch (op->get_type()){ |
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342 | case OperatorNode::Incr: |
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343 | case OperatorNode::Decr: |
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344 | case OperatorNode::IncrPost: |
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345 | case OperatorNode::DecrPost: |
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346 | case OperatorNode::Assign: |
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347 | case OperatorNode::MulAssn: |
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348 | case OperatorNode::DivAssn: |
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349 | case OperatorNode::ModAssn: |
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350 | case OperatorNode::PlusAssn: |
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351 | case OperatorNode::MinusAssn: |
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352 | case OperatorNode::LSAssn: |
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353 | case OperatorNode::RSAssn: |
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354 | case OperatorNode::AndAssn: |
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355 | case OperatorNode::ERAssn: |
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356 | case OperatorNode::OrAssn: |
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357 | // the rewrite rules for these expressions specify that the first argument has its address taken |
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358 | assert( !args.empty() ); |
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359 | args.front() = new AddressExpr( args.front() ); |
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360 | break; |
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361 | default: |
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362 | /* do nothing */ |
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363 | ; |
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364 | } |
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365 | |
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366 | switch ( op->get_type() ) { |
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367 | case OperatorNode::Incr: |
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368 | case OperatorNode::Decr: |
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369 | case OperatorNode::IncrPost: |
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370 | case OperatorNode::DecrPost: |
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371 | case OperatorNode::Assign: |
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372 | case OperatorNode::MulAssn: |
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373 | case OperatorNode::DivAssn: |
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374 | case OperatorNode::ModAssn: |
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375 | case OperatorNode::PlusAssn: |
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376 | case OperatorNode::MinusAssn: |
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377 | case OperatorNode::LSAssn: |
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378 | case OperatorNode::RSAssn: |
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379 | case OperatorNode::AndAssn: |
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380 | case OperatorNode::ERAssn: |
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381 | case OperatorNode::OrAssn: |
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382 | case OperatorNode::Plus: |
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383 | case OperatorNode::Minus: |
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384 | case OperatorNode::Mul: |
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385 | case OperatorNode::Div: |
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386 | case OperatorNode::Mod: |
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387 | case OperatorNode::BitOr: |
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388 | case OperatorNode::BitAnd: |
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389 | case OperatorNode::Xor: |
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390 | case OperatorNode::LShift: |
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391 | case OperatorNode::RShift: |
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392 | case OperatorNode::LThan: |
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393 | case OperatorNode::GThan: |
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394 | case OperatorNode::LEThan: |
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395 | case OperatorNode::GEThan: |
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396 | case OperatorNode::Eq: |
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397 | case OperatorNode::Neq: |
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398 | case OperatorNode::Index: |
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399 | case OperatorNode::Range: |
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400 | case OperatorNode::UnPlus: |
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401 | case OperatorNode::UnMinus: |
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402 | case OperatorNode::PointTo: |
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403 | case OperatorNode::Neg: |
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404 | case OperatorNode::BitNeg: |
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405 | case OperatorNode::LabelAddress: |
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406 | return new UntypedExpr( new NameExpr( opFuncName[ op->get_type() ] ), args ); |
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407 | case OperatorNode::AddressOf: |
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408 | assert( args.size() == 1 ); |
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409 | assert( args.front() ); |
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410 | |
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411 | return new AddressExpr( args.front() ); |
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412 | case OperatorNode::Cast: |
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413 | { |
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414 | TypeValueNode * arg = dynamic_cast<TypeValueNode *>(get_args()); |
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415 | assert( arg ); |
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416 | |
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417 | DeclarationNode *decl_node = arg->get_decl(); |
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418 | ExpressionNode *expr_node = dynamic_cast<ExpressionNode *>(arg->get_link()); |
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419 | |
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420 | Type *targetType = decl_node->buildType(); |
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421 | if ( dynamic_cast< VoidType* >( targetType ) ) { |
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422 | delete targetType; |
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423 | return new CastExpr( expr_node->build(), maybeBuild< Expression >( get_argName() ) ); |
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424 | } else { |
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425 | return new CastExpr(expr_node->build(),targetType, maybeBuild< Expression >( get_argName() ) ); |
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426 | } |
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427 | } |
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428 | case OperatorNode::FieldSel: |
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429 | { |
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430 | assert( args.size() == 2 ); |
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431 | |
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432 | NameExpr *member = dynamic_cast<NameExpr *>(args.back()); |
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433 | // TupleExpr *memberTup = dynamic_cast<TupleExpr *>(args.back()); |
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434 | |
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435 | if ( member != 0 ) |
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436 | { |
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437 | UntypedMemberExpr *ret = new UntypedMemberExpr(member->get_name(), args.front()); |
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438 | delete member; |
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439 | return ret; |
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440 | } |
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441 | /* else if ( memberTup != 0 ) |
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442 | { |
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443 | UntypedMemberExpr *ret = new UntypedMemberExpr(memberTup->get_name(), args.front()); |
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444 | delete member; |
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445 | return ret; |
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446 | } */ |
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447 | else |
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448 | assert( false ); |
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449 | } |
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450 | case OperatorNode::PFieldSel: |
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451 | { |
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452 | assert( args.size() == 2 ); |
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453 | |
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454 | NameExpr *member = dynamic_cast<NameExpr *>(args.back()); // modify for Tuples xxx |
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455 | assert( member != 0 ); |
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456 | |
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457 | UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) ); |
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458 | deref->get_args().push_back( args.front() ); |
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459 | |
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460 | UntypedMemberExpr *ret = new UntypedMemberExpr(member->get_name(), deref); |
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461 | delete member; |
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462 | return ret; |
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463 | } |
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464 | case OperatorNode::AlignOf: |
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465 | case OperatorNode::SizeOf: |
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466 | { |
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467 | /// bool isSizeOf = (op->get_type() == OperatorNode::SizeOf); |
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468 | |
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469 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>(get_args()) ) { |
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470 | return new SizeofExpr(arg->get_decl()->buildType()); |
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471 | } else { |
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472 | return new SizeofExpr(args.front()); |
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473 | } |
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474 | } |
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475 | case OperatorNode::Attr: |
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476 | { |
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477 | VarRefNode *var = dynamic_cast<VarRefNode *>(get_args()); |
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478 | assert( var ); |
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479 | if ( !get_args()->get_link() ) { |
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480 | return new AttrExpr(var->build(), (Expression*)0); |
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481 | } else if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>(get_args()->get_link()) ) { |
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482 | return new AttrExpr(var->build(), arg->get_decl()->buildType()); |
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483 | } else { |
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484 | return new AttrExpr(var->build(), args.back()); |
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485 | } |
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486 | } |
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487 | case OperatorNode::CompLit: |
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488 | throw UnimplementedError( "C99 compound literals" ); |
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489 | // the short-circuited operators |
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490 | case OperatorNode::Or: |
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491 | case OperatorNode::And: |
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492 | assert(args.size() == 2); |
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493 | return new LogicalExpr( notZeroExpr( args.front() ), notZeroExpr( args.back() ), (op->get_type() == OperatorNode::And) ); |
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494 | case OperatorNode::Cond: |
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495 | { |
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496 | assert(args.size() == 3); |
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497 | std::list< Expression* >::const_iterator i = args.begin(); |
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498 | Expression *arg1 = notZeroExpr( *i++ ); |
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499 | Expression *arg2 = *i++; |
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500 | Expression *arg3 = *i++; |
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501 | return new ConditionalExpr( arg1, arg2, arg3 ); |
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502 | } |
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503 | case OperatorNode::NCond: |
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504 | throw UnimplementedError( "GNU 2-argument conditional expression" ); |
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505 | case OperatorNode::Comma: |
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506 | { |
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507 | assert(args.size() == 2); |
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508 | std::list< Expression* >::const_iterator i = args.begin(); |
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509 | Expression *ret = *i++; |
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510 | while ( i != args.end() ) { |
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511 | ret = new CommaExpr( ret, *i++ ); |
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512 | } |
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513 | return ret; |
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514 | } |
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515 | // Tuples |
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516 | case OperatorNode::TupleC: |
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517 | { |
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518 | TupleExpr *ret = new TupleExpr(); |
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519 | std::copy( args.begin(), args.end(), back_inserter( ret->get_exprs() ) ); |
---|
520 | return ret; |
---|
521 | } |
---|
522 | default: |
---|
523 | // shouldn't happen |
---|
524 | return 0; |
---|
525 | } |
---|
526 | } |
---|
527 | } |
---|
528 | |
---|
529 | void CompositeExprNode::printOneLine(std::ostream &os, int indent) const { |
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530 | printDesignation(os); |
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531 | os << "( "; |
---|
532 | function->printOneLine( os, indent ); |
---|
533 | for( ExpressionNode *cur = arguments; cur != 0; cur = dynamic_cast< ExpressionNode* >( cur->get_link() ) ) { |
---|
534 | cur->printOneLine( os, indent ); |
---|
535 | } |
---|
536 | os << ") "; |
---|
537 | } |
---|
538 | |
---|
539 | void CompositeExprNode::print(std::ostream &os, int indent) const { |
---|
540 | printDesignation(os); |
---|
541 | os << '\r' << string(indent, ' ') << "Application of: " << endl; |
---|
542 | function->print( os, indent + ParseNode::indent_by ); |
---|
543 | |
---|
544 | os << '\r' << string(indent, ' ') ; |
---|
545 | if ( arguments ) { |
---|
546 | os << "... on arguments: " << endl; |
---|
547 | arguments->printList(os, indent + ParseNode::indent_by); |
---|
548 | } else |
---|
549 | os << "... on no arguments: " << endl; |
---|
550 | } |
---|
551 | |
---|
552 | void CompositeExprNode::set_function(ExpressionNode *f){ |
---|
553 | function = f; |
---|
554 | } |
---|
555 | |
---|
556 | void CompositeExprNode::set_args(ExpressionNode *args){ |
---|
557 | arguments = args; |
---|
558 | } |
---|
559 | |
---|
560 | ExpressionNode *CompositeExprNode::get_function(void) const { |
---|
561 | return function; |
---|
562 | } |
---|
563 | |
---|
564 | ExpressionNode *CompositeExprNode::get_args(void) const { |
---|
565 | return arguments; |
---|
566 | } |
---|
567 | |
---|
568 | void CompositeExprNode::add_arg(ExpressionNode *arg){ |
---|
569 | if (arguments) |
---|
570 | arguments->set_link(arg); |
---|
571 | else |
---|
572 | set_args(arg); |
---|
573 | } |
---|
574 | |
---|
575 | CommaExprNode::CommaExprNode(): CompositeExprNode(new OperatorNode(OperatorNode::Comma)) {} |
---|
576 | |
---|
577 | CommaExprNode::CommaExprNode(ExpressionNode *exp) : CompositeExprNode( new OperatorNode(OperatorNode::Comma), exp ) { |
---|
578 | } |
---|
579 | |
---|
580 | CommaExprNode::CommaExprNode(ExpressionNode *exp1, ExpressionNode *exp2) : CompositeExprNode(new OperatorNode(OperatorNode::Comma), exp1, exp2) { |
---|
581 | } |
---|
582 | |
---|
583 | CommaExprNode *CommaExprNode::add_to_list(ExpressionNode *exp){ |
---|
584 | add_arg(exp); |
---|
585 | |
---|
586 | return this; |
---|
587 | } |
---|
588 | |
---|
589 | CommaExprNode::CommaExprNode( const CommaExprNode &other ) : CompositeExprNode( other ) { |
---|
590 | } |
---|
591 | |
---|
592 | ValofExprNode::ValofExprNode(StatementNode *s): body(s) {} |
---|
593 | |
---|
594 | ValofExprNode::ValofExprNode( const ValofExprNode &other ) : ExpressionNode( other ), body( maybeClone( body ) ) { |
---|
595 | } |
---|
596 | |
---|
597 | ValofExprNode::~ValofExprNode() { |
---|
598 | delete body; |
---|
599 | } |
---|
600 | |
---|
601 | void ValofExprNode::print( std::ostream &os, int indent ) const { |
---|
602 | printDesignation(os); |
---|
603 | os << string(indent, ' ') << "Valof Expression:" << std::endl; |
---|
604 | get_body()->print(os, indent + 4); |
---|
605 | } |
---|
606 | |
---|
607 | void ValofExprNode::printOneLine( std::ostream &, int indent ) const { |
---|
608 | assert( false ); |
---|
609 | } |
---|
610 | |
---|
611 | Expression *ValofExprNode::build() const { |
---|
612 | return new UntypedValofExpr ( get_body()->build(), maybeBuild< Expression >( get_argName() ) ); |
---|
613 | } |
---|
614 | |
---|
615 | ForCtlExprNode::ForCtlExprNode(ParseNode *init_, ExpressionNode *cond, ExpressionNode *incr) throw (SemanticError) : condition(cond), change(incr) { |
---|
616 | if ( init_ == 0 ) |
---|
617 | init = 0; |
---|
618 | else { |
---|
619 | DeclarationNode *decl; |
---|
620 | ExpressionNode *exp; |
---|
621 | |
---|
622 | if ((decl = dynamic_cast<DeclarationNode *>(init_)) != 0) |
---|
623 | init = new StatementNode(decl); |
---|
624 | else if ((exp = dynamic_cast<ExpressionNode *>(init_)) != 0) |
---|
625 | init = new StatementNode(StatementNode::Exp, exp); |
---|
626 | else |
---|
627 | throw SemanticError("Error in for control expression"); |
---|
628 | } |
---|
629 | } |
---|
630 | |
---|
631 | ForCtlExprNode::ForCtlExprNode( const ForCtlExprNode &other ) |
---|
632 | : ExpressionNode( other ), init( maybeClone( other.init ) ), condition( maybeClone( other.condition ) ), change( maybeClone( other.change ) ) { |
---|
633 | } |
---|
634 | |
---|
635 | ForCtlExprNode::~ForCtlExprNode(){ |
---|
636 | delete init; |
---|
637 | delete condition; |
---|
638 | delete change; |
---|
639 | } |
---|
640 | |
---|
641 | Expression *ForCtlExprNode::build() const { |
---|
642 | // this shouldn't be used! |
---|
643 | assert( false ); |
---|
644 | return 0; |
---|
645 | } |
---|
646 | |
---|
647 | void ForCtlExprNode::print( std::ostream &os, int indent ) const{ |
---|
648 | os << string(indent,' ') << "For Control Expression -- : " << endl; |
---|
649 | |
---|
650 | os << "\r" << string(indent + 2,' ') << "initialization: "; |
---|
651 | if (init != 0) |
---|
652 | init->print(os, indent + 4); |
---|
653 | |
---|
654 | os << "\n\r" << string(indent + 2,' ') << "condition: "; |
---|
655 | if (condition != 0) |
---|
656 | condition->print(os, indent + 4); |
---|
657 | os << "\n\r" << string(indent + 2,' ') << "increment: "; |
---|
658 | if (change != 0) |
---|
659 | change->print(os, indent + 4); |
---|
660 | } |
---|
661 | |
---|
662 | void ForCtlExprNode::printOneLine( std::ostream &, int indent ) const { |
---|
663 | assert( false ); |
---|
664 | } |
---|
665 | |
---|
666 | TypeValueNode::TypeValueNode(DeclarationNode *decl) |
---|
667 | : decl( decl ) { |
---|
668 | } |
---|
669 | |
---|
670 | TypeValueNode::TypeValueNode( const TypeValueNode &other ) |
---|
671 | : ExpressionNode( other ), decl( maybeClone( other.decl ) ) { |
---|
672 | } |
---|
673 | |
---|
674 | Expression *TypeValueNode::build() const { |
---|
675 | return new TypeExpr( decl->buildType() ); |
---|
676 | } |
---|
677 | |
---|
678 | void TypeValueNode::print(std::ostream &os, int indent) const { |
---|
679 | os << std::string( indent, ' ' ) << "Type:"; |
---|
680 | get_decl()->print(os, indent + 2); |
---|
681 | } |
---|
682 | |
---|
683 | void TypeValueNode::printOneLine(std::ostream &os, int indent) const { |
---|
684 | os << "Type:"; |
---|
685 | get_decl()->print(os, indent + 2); |
---|
686 | } |
---|
687 | |
---|
688 | ExpressionNode *flattenCommas( ExpressionNode *list ) { |
---|
689 | if ( CompositeExprNode *composite = dynamic_cast< CompositeExprNode * >( list ) ) |
---|
690 | { |
---|
691 | OperatorNode *op; |
---|
692 | if ( (op = dynamic_cast< OperatorNode * >( composite->get_function() )) && (op->get_type() == OperatorNode::Comma) ) |
---|
693 | { |
---|
694 | if ( ExpressionNode *next = dynamic_cast< ExpressionNode * >( list->get_link() ) ) |
---|
695 | composite->add_arg( next ); |
---|
696 | return flattenCommas( composite->get_args() ); |
---|
697 | } |
---|
698 | } |
---|
699 | |
---|
700 | if ( ExpressionNode *next = dynamic_cast< ExpressionNode * >( list->get_link() ) ) |
---|
701 | list->set_next( flattenCommas( next ) ); |
---|
702 | |
---|
703 | return list; |
---|
704 | } |
---|
705 | |
---|
706 | ExpressionNode *tupleContents( ExpressionNode *tuple ) { |
---|
707 | if ( CompositeExprNode *composite = dynamic_cast< CompositeExprNode * >( tuple ) ) { |
---|
708 | OperatorNode *op = 0; |
---|
709 | if ( (op = dynamic_cast< OperatorNode * >( composite->get_function() )) && (op->get_type() == OperatorNode::TupleC) ) |
---|
710 | return composite->get_args(); |
---|
711 | } |
---|
712 | return tuple; |
---|
713 | } |
---|