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 | // DeclarationNode.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 12:34:05 2015 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Mon Oct 3 18:03:08 2016 |
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13 | // Update Count : 651 |
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14 | // |
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15 | |
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16 | #include <string> |
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17 | #include <list> |
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18 | #include <iterator> |
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19 | #include <algorithm> |
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20 | #include <cassert> |
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21 | |
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22 | #include "TypeData.h" |
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23 | |
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24 | #include "SynTree/Declaration.h" |
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25 | #include "SynTree/Expression.h" |
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26 | |
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27 | #include "TypedefTable.h" |
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28 | extern TypedefTable typedefTable; |
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29 | |
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30 | using namespace std; |
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31 | |
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32 | // These must remain in the same order as the corresponding DeclarationNode enumerations. |
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33 | const char * DeclarationNode::storageName[] = { "extern", "static", "auto", "register", "inline", "fortran", "_Noreturn", "_Thread_local", "NoStorageClass" }; |
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34 | const char * DeclarationNode::qualifierName[] = { "const", "restrict", "volatile", "lvalue", "_Atomic", "NoQualifier" }; |
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35 | const char * DeclarationNode::basicTypeName[] = { "void", "_Bool", "char", "int", "float", "double", "long double", "NoBasicType" }; |
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36 | const char * DeclarationNode::complexTypeName[] = { "_Complex", "_Imaginary", "NoComplexType" }; |
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37 | const char * DeclarationNode::signednessName[] = { "signed", "unsigned", "NoSignedness" }; |
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38 | const char * DeclarationNode::lengthName[] = { "short", "long", "long long", "NoLength" }; |
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39 | const char * DeclarationNode::aggregateName[] = { "struct", "union", "context" }; |
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40 | const char * DeclarationNode::typeClassName[] = { "otype", "dtype", "ftype" }; |
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41 | const char * DeclarationNode::builtinTypeName[] = { "__builtin_va_list" }; |
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42 | |
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43 | UniqueName DeclarationNode::anonymous( "__anonymous" ); |
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44 | |
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45 | extern LinkageSpec::Spec linkage; // defined in parser.yy |
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46 | |
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47 | DeclarationNode::DeclarationNode() : |
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48 | type( nullptr ), |
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49 | storageClass( NoStorageClass ), |
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50 | isInline( false ), |
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51 | isNoreturn( false ), |
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52 | bitfieldWidth( nullptr ), |
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53 | initializer( nullptr ), |
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54 | hasEllipsis( false ), |
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55 | linkage( ::linkage ), |
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56 | extension( false ) { |
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57 | |
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58 | // variable.name = nullptr; |
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59 | variable.tyClass = NoTypeClass; |
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60 | variable.assertions = nullptr; |
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61 | |
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62 | // attr.name = nullptr; |
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63 | attr.expr = nullptr; |
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64 | attr.type = nullptr; |
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65 | } |
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66 | |
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67 | DeclarationNode::~DeclarationNode() { |
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68 | // delete attr.name; |
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69 | delete attr.expr; |
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70 | delete attr.type; |
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71 | |
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72 | // delete variable.name; |
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73 | delete variable.assertions; |
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74 | |
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75 | delete type; |
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76 | delete bitfieldWidth; |
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77 | delete initializer; |
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78 | } |
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79 | |
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80 | DeclarationNode * DeclarationNode::clone() const { |
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81 | DeclarationNode * newnode = new DeclarationNode; |
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82 | newnode->type = maybeClone( type ); |
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83 | newnode->name = name ? new string( *name ) : nullptr; |
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84 | newnode->storageClass = storageClass; |
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85 | newnode->isInline = isInline; |
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86 | newnode->isNoreturn = isNoreturn; |
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87 | newnode->bitfieldWidth = maybeClone( bitfieldWidth ); |
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88 | newnode->hasEllipsis = hasEllipsis; |
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89 | newnode->initializer = maybeClone( initializer ); |
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90 | newnode->set_next( maybeClone( get_next() ) ); |
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91 | newnode->linkage = linkage; |
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92 | |
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93 | // newnode->variable.name = variable.name ? new string( *variable.name ) : nullptr; |
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94 | newnode->variable.tyClass = variable.tyClass; |
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95 | newnode->variable.assertions = maybeClone( variable.assertions ); |
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96 | |
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97 | // newnode->attr.name = attr.name ? new string( *attr.name ) : nullptr; |
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98 | newnode->attr.expr = maybeClone( attr.expr ); |
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99 | newnode->attr.type = maybeClone( attr.type ); |
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100 | return newnode; |
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101 | } // DeclarationNode::clone |
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102 | |
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103 | bool DeclarationNode::get_hasEllipsis() const { |
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104 | return hasEllipsis; |
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105 | } |
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106 | |
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107 | void DeclarationNode::print( std::ostream &os, int indent ) const { |
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108 | os << string( indent, ' ' ); |
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109 | if ( name ) { |
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110 | os << *name << ": "; |
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111 | } else { |
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112 | os << "unnamed: "; |
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113 | } // if |
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114 | |
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115 | if ( linkage != LinkageSpec::Cforall ) { |
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116 | os << LinkageSpec::linkageName( linkage ) << " "; |
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117 | } // if |
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118 | |
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119 | if ( storageClass != NoStorageClass ) os << DeclarationNode::storageName[storageClass] << ' '; |
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120 | if ( isInline ) os << DeclarationNode::storageName[Inline] << ' '; |
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121 | if ( isNoreturn ) os << DeclarationNode::storageName[Noreturn] << ' '; |
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122 | if ( type ) { |
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123 | type->print( os, indent ); |
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124 | } else { |
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125 | os << "untyped entity "; |
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126 | } // if |
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127 | |
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128 | if ( bitfieldWidth ) { |
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129 | os << endl << string( indent + 2, ' ' ) << "with bitfield width "; |
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130 | bitfieldWidth->printOneLine( os ); |
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131 | } // if |
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132 | |
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133 | if ( initializer ) { |
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134 | os << endl << string( indent + 2, ' ' ) << "with initializer "; |
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135 | initializer->printOneLine( os ); |
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136 | os << " maybe constructed? " << initializer->get_maybeConstructed(); |
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137 | |
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138 | } // if |
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139 | |
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140 | os << endl; |
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141 | } |
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142 | |
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143 | void DeclarationNode::printList( std::ostream &os, int indent ) const { |
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144 | ParseNode::printList( os, indent ); |
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145 | if ( hasEllipsis ) { |
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146 | os << string( indent, ' ' ) << "and a variable number of other arguments" << endl; |
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147 | } // if |
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148 | } |
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149 | |
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150 | DeclarationNode * DeclarationNode::newFunction( string * name, DeclarationNode * ret, DeclarationNode * param, StatementNode * body, bool newStyle ) { |
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151 | DeclarationNode * newnode = new DeclarationNode; |
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152 | newnode->name = name; |
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153 | newnode->type = new TypeData( TypeData::Function ); |
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154 | newnode->type->function.params = param; |
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155 | newnode->type->function.newStyle = newStyle; |
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156 | newnode->type->function.body = body; |
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157 | // ignore unnamed routine declarations: void p( int (*)(int) ); |
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158 | if ( newnode->name ) { |
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159 | typedefTable.addToEnclosingScope( *newnode->name, TypedefTable::ID ); |
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160 | } // if |
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161 | |
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162 | if ( body ) { |
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163 | newnode->type->function.hasBody = true; |
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164 | } // if |
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165 | |
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166 | if ( ret ) { |
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167 | newnode->type->base = ret->type; |
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168 | ret->type = nullptr; |
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169 | delete ret; |
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170 | } // if |
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171 | |
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172 | return newnode; |
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173 | } // DeclarationNode::newFunction |
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174 | |
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175 | DeclarationNode * DeclarationNode::newQualifier( Qualifier q ) { |
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176 | DeclarationNode * newnode = new DeclarationNode; |
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177 | newnode->type = new TypeData(); |
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178 | newnode->type->qualifiers[ q ] = 1; |
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179 | return newnode; |
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180 | } // DeclarationNode::newQualifier |
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181 | |
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182 | DeclarationNode * DeclarationNode::newForall( DeclarationNode * forall ) { |
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183 | DeclarationNode * newnode = new DeclarationNode; |
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184 | newnode->type = new TypeData( TypeData::Unknown ); |
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185 | newnode->type->forall = forall; |
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186 | return newnode; |
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187 | } // DeclarationNode::newForall |
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188 | |
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189 | DeclarationNode * DeclarationNode::newStorageClass( DeclarationNode::StorageClass sc ) { |
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190 | DeclarationNode * newnode = new DeclarationNode; |
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191 | newnode->storageClass = sc; |
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192 | return newnode; |
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193 | } // DeclarationNode::newStorageClass |
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194 | |
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195 | DeclarationNode * DeclarationNode::newBasicType( BasicType bt ) { |
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196 | DeclarationNode * newnode = new DeclarationNode; |
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197 | newnode->type = new TypeData( TypeData::Basic ); |
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198 | newnode->type->basictype = bt; |
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199 | return newnode; |
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200 | } // DeclarationNode::newBasicType |
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201 | |
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202 | DeclarationNode * DeclarationNode::newComplexType( ComplexType ct ) { |
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203 | DeclarationNode * newnode = new DeclarationNode; |
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204 | newnode->type = new TypeData( TypeData::Basic ); |
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205 | newnode->type->complextype = ct; |
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206 | return newnode; |
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207 | } // DeclarationNode::newComplexType |
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208 | |
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209 | DeclarationNode * DeclarationNode::newSignedNess( Signedness sn ) { |
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210 | DeclarationNode * newnode = new DeclarationNode; |
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211 | newnode->type = new TypeData( TypeData::Basic ); |
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212 | newnode->type->signedness = sn; |
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213 | return newnode; |
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214 | } // DeclarationNode::newSignedNess |
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215 | |
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216 | DeclarationNode * DeclarationNode::newLength( Length lnth ) { |
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217 | DeclarationNode * newnode = new DeclarationNode; |
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218 | newnode->type = new TypeData( TypeData::Basic ); |
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219 | newnode->type->length = lnth; |
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220 | return newnode; |
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221 | } // DeclarationNode::newLength |
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222 | |
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223 | DeclarationNode * DeclarationNode::newFromTypedef( string * name ) { |
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224 | DeclarationNode * newnode = new DeclarationNode; |
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225 | newnode->type = new TypeData( TypeData::SymbolicInst ); |
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226 | newnode->type->symbolic.name = name; |
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227 | newnode->type->symbolic.isTypedef = true; |
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228 | newnode->type->symbolic.params = nullptr; |
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229 | return newnode; |
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230 | } // DeclarationNode::newFromTypedef |
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231 | |
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232 | DeclarationNode * DeclarationNode::newAggregate( Aggregate kind, const string * name, ExpressionNode * actuals, DeclarationNode * fields, bool body ) { |
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233 | DeclarationNode * newnode = new DeclarationNode; |
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234 | newnode->type = new TypeData( TypeData::Aggregate ); |
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235 | newnode->type->aggregate.kind = kind; |
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236 | if ( name ) { |
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237 | newnode->type->aggregate.name = name; |
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238 | } else { // anonymous aggregate ? |
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239 | newnode->type->aggregate.name = new string( anonymous.newName() ); |
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240 | } // if |
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241 | newnode->type->aggregate.actuals = actuals; |
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242 | newnode->type->aggregate.fields = fields; |
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243 | newnode->type->aggregate.body = body; |
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244 | return newnode; |
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245 | } // DeclarationNode::newAggregate |
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246 | |
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247 | DeclarationNode * DeclarationNode::newEnum( string * name, DeclarationNode * constants ) { |
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248 | DeclarationNode * newnode = new DeclarationNode; |
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249 | newnode->type = new TypeData( TypeData::Enum ); |
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250 | if ( name ) { |
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251 | newnode->type->enumeration.name = name; |
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252 | } else { // anonymous aggregate ? |
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253 | newnode->type->enumeration.name = new string( anonymous.newName() ); |
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254 | } // if |
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255 | newnode->type->enumeration.constants = constants; |
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256 | return newnode; |
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257 | } // DeclarationNode::newEnum |
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258 | |
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259 | DeclarationNode * DeclarationNode::newEnumConstant( string * name, ExpressionNode * constant ) { |
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260 | DeclarationNode * newnode = new DeclarationNode; |
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261 | newnode->name = name; |
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262 | newnode->enumeratorValue.reset( constant ); |
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263 | typedefTable.addToEnclosingScope( *newnode->name, TypedefTable::ID ); |
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264 | return newnode; |
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265 | } // DeclarationNode::newEnumConstant |
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266 | |
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267 | DeclarationNode * DeclarationNode::newName( string * name ) { |
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268 | DeclarationNode * newnode = new DeclarationNode; |
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269 | newnode->name = name; |
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270 | return newnode; |
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271 | } // DeclarationNode::newName |
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272 | |
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273 | DeclarationNode * DeclarationNode::newFromTypeGen( string * name, ExpressionNode * params ) { |
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274 | DeclarationNode * newnode = new DeclarationNode; |
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275 | newnode->type = new TypeData( TypeData::SymbolicInst ); |
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276 | newnode->type->symbolic.name = name; |
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277 | newnode->type->symbolic.isTypedef = false; |
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278 | newnode->type->symbolic.actuals = params; |
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279 | return newnode; |
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280 | } // DeclarationNode::newFromTypeGen |
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281 | |
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282 | DeclarationNode * DeclarationNode::newTypeParam( TypeClass tc, string * name ) { |
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283 | DeclarationNode * newnode = new DeclarationNode; |
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284 | newnode->type = nullptr; |
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285 | assert( ! newnode->name ); |
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286 | // newnode->variable.name = name; |
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287 | newnode->name = name; |
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288 | newnode->variable.tyClass = tc; |
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289 | newnode->variable.assertions = nullptr; |
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290 | return newnode; |
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291 | } // DeclarationNode::newTypeParam |
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292 | |
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293 | DeclarationNode * DeclarationNode::newTrait( const string * name, DeclarationNode * params, DeclarationNode * asserts ) { |
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294 | DeclarationNode * newnode = new DeclarationNode; |
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295 | newnode->type = new TypeData( TypeData::Aggregate ); |
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296 | newnode->type->aggregate.name = name; |
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297 | newnode->type->aggregate.kind = Trait; |
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298 | newnode->type->aggregate.params = params; |
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299 | newnode->type->aggregate.fields = asserts; |
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300 | return newnode; |
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301 | } // DeclarationNode::newTrait |
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302 | |
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303 | DeclarationNode * DeclarationNode::newTraitUse( const string * name, ExpressionNode * params ) { |
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304 | DeclarationNode * newnode = new DeclarationNode; |
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305 | newnode->type = new TypeData( TypeData::AggregateInst ); |
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306 | newnode->type->aggInst.aggregate = new TypeData( TypeData::Aggregate ); |
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307 | newnode->type->aggInst.aggregate->aggregate.kind = Trait; |
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308 | newnode->type->aggInst.aggregate->aggregate.name = name; |
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309 | newnode->type->aggInst.params = params; |
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310 | return newnode; |
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311 | } // DeclarationNode::newTraitUse |
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312 | |
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313 | DeclarationNode * DeclarationNode::newTypeDecl( string * name, DeclarationNode * typeParams ) { |
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314 | DeclarationNode * newnode = new DeclarationNode; |
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315 | newnode->type = new TypeData( TypeData::Symbolic ); |
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316 | newnode->type->symbolic.isTypedef = false; |
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317 | newnode->type->symbolic.params = typeParams; |
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318 | newnode->type->symbolic.name = name; |
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319 | return newnode; |
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320 | } // DeclarationNode::newTypeDecl |
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321 | |
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322 | DeclarationNode * DeclarationNode::newPointer( DeclarationNode * qualifiers ) { |
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323 | DeclarationNode * newnode = new DeclarationNode; |
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324 | newnode->type = new TypeData( TypeData::Pointer ); |
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325 | return newnode->addQualifiers( qualifiers ); |
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326 | } // DeclarationNode::newPointer |
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327 | |
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328 | DeclarationNode * DeclarationNode::newArray( ExpressionNode * size, DeclarationNode * qualifiers, bool isStatic ) { |
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329 | DeclarationNode * newnode = new DeclarationNode; |
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330 | newnode->type = new TypeData( TypeData::Array ); |
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331 | newnode->type->array.dimension = size; |
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332 | newnode->type->array.isStatic = isStatic; |
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333 | if ( newnode->type->array.dimension == nullptr || newnode->type->array.dimension->isExpressionType<ConstantExpr * >() ) { |
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334 | newnode->type->array.isVarLen = false; |
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335 | } else { |
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336 | newnode->type->array.isVarLen = true; |
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337 | } // if |
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338 | return newnode->addQualifiers( qualifiers ); |
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339 | } // DeclarationNode::newArray |
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340 | |
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341 | DeclarationNode * DeclarationNode::newVarArray( DeclarationNode * qualifiers ) { |
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342 | DeclarationNode * newnode = new DeclarationNode; |
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343 | newnode->type = new TypeData( TypeData::Array ); |
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344 | newnode->type->array.dimension = nullptr; |
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345 | newnode->type->array.isStatic = false; |
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346 | newnode->type->array.isVarLen = true; |
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347 | return newnode->addQualifiers( qualifiers ); |
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348 | } |
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349 | |
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350 | DeclarationNode * DeclarationNode::newBitfield( ExpressionNode * size ) { |
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351 | DeclarationNode * newnode = new DeclarationNode; |
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352 | newnode->bitfieldWidth = size; |
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353 | return newnode; |
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354 | } |
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355 | |
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356 | DeclarationNode * DeclarationNode::newTuple( DeclarationNode * members ) { |
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357 | DeclarationNode * newnode = new DeclarationNode; |
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358 | newnode->type = new TypeData( TypeData::Tuple ); |
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359 | newnode->type->tuple = members; |
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360 | return newnode; |
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361 | } |
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362 | |
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363 | DeclarationNode * DeclarationNode::newTypeof( ExpressionNode * expr ) { |
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364 | DeclarationNode * newnode = new DeclarationNode; |
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365 | newnode->type = new TypeData( TypeData::Typeof ); |
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366 | newnode->type->typeexpr = expr; |
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367 | return newnode; |
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368 | } |
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369 | |
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370 | DeclarationNode * DeclarationNode::newBuiltinType( BuiltinType bt ) { |
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371 | DeclarationNode * newnode = new DeclarationNode; |
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372 | newnode->type = new TypeData( TypeData::Builtin ); |
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373 | newnode->builtin = bt; |
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374 | return newnode; |
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375 | } // DeclarationNode::newBuiltinType |
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376 | |
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377 | DeclarationNode * DeclarationNode::newAttr( string * name, ExpressionNode * expr ) { |
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378 | DeclarationNode * newnode = new DeclarationNode; |
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379 | newnode->type = nullptr; |
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380 | // newnode->attr.name = name; |
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381 | newnode->name = name; |
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382 | newnode->attr.expr = expr; |
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383 | return newnode; |
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384 | } |
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385 | |
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386 | DeclarationNode * DeclarationNode::newAttr( string * name, DeclarationNode * type ) { |
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387 | DeclarationNode * newnode = new DeclarationNode; |
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388 | newnode->type = nullptr; |
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389 | // newnode->attr.name = name; |
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390 | newnode->name = name; |
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391 | newnode->attr.type = type; |
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392 | return newnode; |
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393 | } |
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394 | |
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395 | void appendError( string & dst, const string & src ) { |
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396 | if ( src.empty() ) return; |
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397 | if ( dst.empty() ) { dst = src; return; } |
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398 | dst += ", " + src; |
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399 | } // appendError |
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400 | |
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401 | void DeclarationNode::checkQualifiers( const TypeData * src, const TypeData * dst ) { |
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402 | TypeData::Qualifiers qsrc = src->qualifiers, qdst = dst->qualifiers; // optimization |
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403 | |
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404 | if ( (qsrc & qdst).any() ) { // common qualifier ? |
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405 | for ( int i = 0; i < NoQualifier; i += 1 ) { // find common qualifiers |
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406 | if ( qsrc[i] && qdst[i] ) { |
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407 | appendError( error, string( "duplicate " ) + DeclarationNode::qualifierName[i] ); |
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408 | } // if |
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409 | } // for |
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410 | } // if |
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411 | } // DeclarationNode::checkQualifiers |
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412 | |
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413 | void DeclarationNode::checkStorageClasses( DeclarationNode * q ) { |
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414 | if ( storageClass != NoStorageClass && q->storageClass != NoStorageClass ) { |
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415 | if ( storageClass == q->storageClass ) { // duplicate qualifier |
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416 | appendError( error, string( "duplicate " ) + storageName[ storageClass ] ); |
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417 | } else { // only one storage class |
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418 | appendError( error, string( "conflicting " ) + storageName[ storageClass ] + " & " + storageName[ q->storageClass ] ); |
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419 | q->storageClass = storageClass; // FIX ERROR, prevent assertions from triggering |
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420 | } // if |
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421 | } // if |
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422 | appendError( error, q->error ); |
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423 | } // DeclarationNode::copyStorageClasses |
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424 | |
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425 | DeclarationNode * DeclarationNode::copyStorageClasses( DeclarationNode * q ) { |
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426 | isInline = isInline || q->isInline; |
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427 | isNoreturn = isNoreturn || q->isNoreturn; |
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428 | // do not overwrite an existing value with NoStorageClass |
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429 | if ( q->storageClass != NoStorageClass ) { |
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430 | assert( storageClass == NoStorageClass || storageClass == q->storageClass ); |
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431 | storageClass = q->storageClass; |
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432 | } // if |
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433 | return this; |
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434 | } // DeclarationNode::copyStorageClasses |
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435 | |
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436 | static void addQualifiersToType( TypeData *&src, TypeData * dst ) { |
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437 | if ( src->forall && dst->kind == TypeData::Function ) { |
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438 | if ( dst->forall ) { |
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439 | dst->forall->appendList( src->forall ); |
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440 | } else { |
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441 | dst->forall = src->forall; |
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442 | } // if |
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443 | src->forall = nullptr; |
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444 | } // if |
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445 | if ( dst->base ) { |
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446 | addQualifiersToType( src, dst->base ); |
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447 | } else if ( dst->kind == TypeData::Function ) { |
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448 | dst->base = src; |
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449 | src = nullptr; |
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450 | } else { |
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451 | dst->qualifiers |= src->qualifiers; |
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452 | } // if |
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453 | } // addQualifiersToType |
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454 | |
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455 | DeclarationNode * DeclarationNode::addQualifiers( DeclarationNode * q ) { |
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456 | if ( ! q ) { delete q; return this; } |
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457 | |
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458 | checkStorageClasses( q ); |
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459 | copyStorageClasses( q ); |
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460 | |
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461 | if ( ! q->type ) { |
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462 | delete q; |
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463 | return this; |
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464 | } // if |
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465 | |
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466 | if ( ! type ) { |
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467 | type = q->type; // reuse this structure |
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468 | q->type = nullptr; |
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469 | delete q; |
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470 | return this; |
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471 | } // if |
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472 | |
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473 | checkQualifiers( q->type, type ); |
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474 | addQualifiersToType( q->type, type ); |
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475 | |
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476 | if ( q->type->forall ) { |
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477 | if ( type->forall ) { |
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478 | type->forall->appendList( q->type->forall ); |
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479 | } else { |
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480 | if ( type->kind == TypeData::Aggregate ) { |
---|
481 | type->aggregate.params = q->type->forall; |
---|
482 | // change implicit typedef from TYPEDEFname to TYPEGENname |
---|
483 | typedefTable.changeKind( *type->aggregate.name, TypedefTable::TG ); |
---|
484 | } else { |
---|
485 | type->forall = q->type->forall; |
---|
486 | } // if |
---|
487 | } // if |
---|
488 | q->type->forall = nullptr; |
---|
489 | } // if |
---|
490 | delete q; |
---|
491 | return this; |
---|
492 | } // addQualifiers |
---|
493 | |
---|
494 | static void addTypeToType( TypeData *&src, TypeData *&dst ) { |
---|
495 | if ( src->forall && dst->kind == TypeData::Function ) { |
---|
496 | if ( dst->forall ) { |
---|
497 | dst->forall->appendList( src->forall ); |
---|
498 | } else { |
---|
499 | dst->forall = src->forall; |
---|
500 | } // if |
---|
501 | src->forall = nullptr; |
---|
502 | } // if |
---|
503 | if ( dst->base ) { |
---|
504 | addTypeToType( src, dst->base ); |
---|
505 | } else { |
---|
506 | switch ( dst->kind ) { |
---|
507 | case TypeData::Unknown: |
---|
508 | src->qualifiers |= dst->qualifiers; |
---|
509 | dst = src; |
---|
510 | src = nullptr; |
---|
511 | break; |
---|
512 | case TypeData::Basic: |
---|
513 | dst->qualifiers |= src->qualifiers; |
---|
514 | if ( src->kind != TypeData::Unknown ) { |
---|
515 | assert( src->kind == TypeData::Basic ); |
---|
516 | |
---|
517 | if ( dst->basictype == DeclarationNode::NoBasicType ) { |
---|
518 | dst->basictype = src->basictype; |
---|
519 | } else if ( src->basictype != DeclarationNode::NoBasicType ) |
---|
520 | throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::basicTypeName[ src->basictype ] + " in type: ", src ); |
---|
521 | |
---|
522 | if ( dst->complextype == DeclarationNode::NoComplexType ) { |
---|
523 | dst->complextype = src->complextype; |
---|
524 | } else if ( src->complextype != DeclarationNode::NoComplexType ) |
---|
525 | throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::complexTypeName[ src->complextype ] + " in type: ", src ); |
---|
526 | |
---|
527 | if ( dst->signedness == DeclarationNode::NoSignedness ) { |
---|
528 | dst->signedness = src->signedness; |
---|
529 | } else if ( src->signedness != DeclarationNode::NoSignedness ) |
---|
530 | throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::signednessName[ src->signedness ] + " in type: ", src ); |
---|
531 | |
---|
532 | if ( dst->length == DeclarationNode::NoLength ) { |
---|
533 | dst->length = src->length; |
---|
534 | } else if ( dst->length == DeclarationNode::Long && src->length == DeclarationNode::Long ) { |
---|
535 | dst->length = DeclarationNode::LongLong; |
---|
536 | } else if ( src->length != DeclarationNode::NoLength ) |
---|
537 | throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::lengthName[ src->length ] + " in type: ", src ); |
---|
538 | } // if |
---|
539 | break; |
---|
540 | default: |
---|
541 | switch ( src->kind ) { |
---|
542 | case TypeData::Aggregate: |
---|
543 | case TypeData::Enum: |
---|
544 | dst->base = new TypeData( TypeData::AggregateInst ); |
---|
545 | dst->base->aggInst.aggregate = src; |
---|
546 | if ( src->kind == TypeData::Aggregate ) { |
---|
547 | dst->base->aggInst.params = maybeClone( src->aggregate.actuals ); |
---|
548 | } // if |
---|
549 | dst->base->qualifiers |= src->qualifiers; |
---|
550 | src = nullptr; |
---|
551 | break; |
---|
552 | default: |
---|
553 | if ( dst->forall ) { |
---|
554 | dst->forall->appendList( src->forall ); |
---|
555 | } else { |
---|
556 | dst->forall = src->forall; |
---|
557 | } // if |
---|
558 | src->forall = nullptr; |
---|
559 | dst->base = src; |
---|
560 | src = nullptr; |
---|
561 | } // switch |
---|
562 | } // switch |
---|
563 | } // if |
---|
564 | } |
---|
565 | |
---|
566 | DeclarationNode * DeclarationNode::addType( DeclarationNode * o ) { |
---|
567 | if ( o ) { |
---|
568 | checkStorageClasses( o ); |
---|
569 | copyStorageClasses( o ); |
---|
570 | if ( o->type ) { |
---|
571 | if ( ! type ) { |
---|
572 | if ( o->type->kind == TypeData::Aggregate || o->type->kind == TypeData::Enum ) { |
---|
573 | type = new TypeData( TypeData::AggregateInst ); |
---|
574 | type->aggInst.aggregate = o->type; |
---|
575 | if ( o->type->kind == TypeData::Aggregate ) { |
---|
576 | type->aggInst.params = maybeClone( o->type->aggregate.actuals ); |
---|
577 | } // if |
---|
578 | type->qualifiers |= o->type->qualifiers; |
---|
579 | } else { |
---|
580 | type = o->type; |
---|
581 | } // if |
---|
582 | o->type = nullptr; |
---|
583 | } else { |
---|
584 | addTypeToType( o->type, type ); |
---|
585 | } // if |
---|
586 | } // if |
---|
587 | if ( o->bitfieldWidth ) { |
---|
588 | bitfieldWidth = o->bitfieldWidth; |
---|
589 | } // if |
---|
590 | |
---|
591 | // there may be typedefs chained onto the type |
---|
592 | if ( o->get_next() ) { |
---|
593 | set_last( o->get_next()->clone() ); |
---|
594 | } // if |
---|
595 | } // if |
---|
596 | delete o; |
---|
597 | return this; |
---|
598 | } |
---|
599 | |
---|
600 | DeclarationNode * DeclarationNode::addTypedef() { |
---|
601 | TypeData * newtype = new TypeData( TypeData::Symbolic ); |
---|
602 | newtype->symbolic.params = nullptr; |
---|
603 | newtype->symbolic.isTypedef = true; |
---|
604 | newtype->symbolic.name = name ? new string( *name ) : nullptr; |
---|
605 | newtype->base = type; |
---|
606 | type = newtype; |
---|
607 | return this; |
---|
608 | } |
---|
609 | |
---|
610 | DeclarationNode * DeclarationNode::addAssertions( DeclarationNode * assertions ) { |
---|
611 | if ( variable.tyClass != NoTypeClass ) { |
---|
612 | if ( variable.assertions ) { |
---|
613 | variable.assertions->appendList( assertions ); |
---|
614 | } else { |
---|
615 | variable.assertions = assertions; |
---|
616 | } // if |
---|
617 | return this; |
---|
618 | } // if |
---|
619 | |
---|
620 | assert( type ); |
---|
621 | switch ( type->kind ) { |
---|
622 | case TypeData::Symbolic: |
---|
623 | if ( type->symbolic.assertions ) { |
---|
624 | type->symbolic.assertions->appendList( assertions ); |
---|
625 | } else { |
---|
626 | type->symbolic.assertions = assertions; |
---|
627 | } // if |
---|
628 | break; |
---|
629 | default: |
---|
630 | assert( false ); |
---|
631 | } // switch |
---|
632 | |
---|
633 | return this; |
---|
634 | } |
---|
635 | |
---|
636 | DeclarationNode * DeclarationNode::addName( string * newname ) { |
---|
637 | assert( ! name ); |
---|
638 | name = newname; |
---|
639 | return this; |
---|
640 | } |
---|
641 | |
---|
642 | DeclarationNode * DeclarationNode::addBitfield( ExpressionNode * size ) { |
---|
643 | bitfieldWidth = size; |
---|
644 | return this; |
---|
645 | } |
---|
646 | |
---|
647 | DeclarationNode * DeclarationNode::addVarArgs() { |
---|
648 | assert( type ); |
---|
649 | hasEllipsis = true; |
---|
650 | return this; |
---|
651 | } |
---|
652 | |
---|
653 | DeclarationNode * DeclarationNode::addFunctionBody( StatementNode * body ) { |
---|
654 | assert( type ); |
---|
655 | assert( type->kind == TypeData::Function ); |
---|
656 | assert( ! type->function.body ); |
---|
657 | type->function.body = body; |
---|
658 | type->function.hasBody = true; |
---|
659 | return this; |
---|
660 | } |
---|
661 | |
---|
662 | DeclarationNode * DeclarationNode::addOldDeclList( DeclarationNode * list ) { |
---|
663 | assert( type ); |
---|
664 | assert( type->kind == TypeData::Function ); |
---|
665 | assert( ! type->function.oldDeclList ); |
---|
666 | type->function.oldDeclList = list; |
---|
667 | return this; |
---|
668 | } |
---|
669 | |
---|
670 | static void setBase( TypeData *&type, TypeData * newType ) { |
---|
671 | if ( type ) { |
---|
672 | TypeData * prevBase = type; |
---|
673 | TypeData * curBase = type->base; |
---|
674 | while ( curBase != nullptr ) { |
---|
675 | prevBase = curBase; |
---|
676 | curBase = curBase->base; |
---|
677 | } // while |
---|
678 | prevBase->base = newType; |
---|
679 | } else { |
---|
680 | type = newType; |
---|
681 | } // if |
---|
682 | } |
---|
683 | |
---|
684 | DeclarationNode * DeclarationNode::addPointer( DeclarationNode * p ) { |
---|
685 | if ( p ) { |
---|
686 | assert( p->type->kind == TypeData::Pointer ); |
---|
687 | setBase( type, p->type ); |
---|
688 | p->type = nullptr; |
---|
689 | delete p; |
---|
690 | } // if |
---|
691 | return this; |
---|
692 | } |
---|
693 | |
---|
694 | DeclarationNode * DeclarationNode::addArray( DeclarationNode * a ) { |
---|
695 | if ( a ) { |
---|
696 | assert( a->type->kind == TypeData::Array ); |
---|
697 | setBase( type, a->type ); |
---|
698 | a->type = nullptr; |
---|
699 | delete a; |
---|
700 | } // if |
---|
701 | return this; |
---|
702 | } |
---|
703 | |
---|
704 | DeclarationNode * DeclarationNode::addNewPointer( DeclarationNode * p ) { |
---|
705 | if ( p ) { |
---|
706 | assert( p->type->kind == TypeData::Pointer ); |
---|
707 | if ( type ) { |
---|
708 | switch ( type->kind ) { |
---|
709 | case TypeData::Aggregate: |
---|
710 | case TypeData::Enum: |
---|
711 | p->type->base = new TypeData( TypeData::AggregateInst ); |
---|
712 | p->type->base->aggInst.aggregate = type; |
---|
713 | if ( type->kind == TypeData::Aggregate ) { |
---|
714 | p->type->base->aggInst.params = maybeClone( type->aggregate.actuals ); |
---|
715 | } // if |
---|
716 | p->type->base->qualifiers |= type->qualifiers; |
---|
717 | break; |
---|
718 | |
---|
719 | default: |
---|
720 | p->type->base = type; |
---|
721 | } // switch |
---|
722 | type = nullptr; |
---|
723 | } // if |
---|
724 | delete this; |
---|
725 | return p; |
---|
726 | } else { |
---|
727 | return this; |
---|
728 | } // if |
---|
729 | } |
---|
730 | |
---|
731 | static TypeData * findLast( TypeData * a ) { |
---|
732 | assert( a ); |
---|
733 | TypeData * cur = a; |
---|
734 | while ( cur->base ) { |
---|
735 | cur = cur->base; |
---|
736 | } // while |
---|
737 | return cur; |
---|
738 | } |
---|
739 | |
---|
740 | DeclarationNode * DeclarationNode::addNewArray( DeclarationNode * a ) { |
---|
741 | if ( a ) { |
---|
742 | assert( a->type->kind == TypeData::Array ); |
---|
743 | TypeData * lastArray = findLast( a->type ); |
---|
744 | if ( type ) { |
---|
745 | switch ( type->kind ) { |
---|
746 | case TypeData::Aggregate: |
---|
747 | case TypeData::Enum: |
---|
748 | lastArray->base = new TypeData( TypeData::AggregateInst ); |
---|
749 | lastArray->base->aggInst.aggregate = type; |
---|
750 | if ( type->kind == TypeData::Aggregate ) { |
---|
751 | lastArray->base->aggInst.params = maybeClone( type->aggregate.actuals ); |
---|
752 | } // if |
---|
753 | lastArray->base->qualifiers |= type->qualifiers; |
---|
754 | break; |
---|
755 | default: |
---|
756 | lastArray->base = type; |
---|
757 | } // switch |
---|
758 | type = nullptr; |
---|
759 | } // if |
---|
760 | delete this; |
---|
761 | return a; |
---|
762 | } else { |
---|
763 | return this; |
---|
764 | } // if |
---|
765 | } |
---|
766 | |
---|
767 | DeclarationNode * DeclarationNode::addParamList( DeclarationNode * params ) { |
---|
768 | TypeData * ftype = new TypeData( TypeData::Function ); |
---|
769 | ftype->function.params = params; |
---|
770 | setBase( type, ftype ); |
---|
771 | return this; |
---|
772 | } |
---|
773 | |
---|
774 | static TypeData * addIdListToType( TypeData * type, DeclarationNode * ids ) { |
---|
775 | if ( type ) { |
---|
776 | if ( type->kind != TypeData::Function ) { |
---|
777 | type->base = addIdListToType( type->base, ids ); |
---|
778 | } else { |
---|
779 | type->function.idList = ids; |
---|
780 | } // if |
---|
781 | return type; |
---|
782 | } else { |
---|
783 | TypeData * newtype = new TypeData( TypeData::Function ); |
---|
784 | newtype->function.idList = ids; |
---|
785 | return newtype; |
---|
786 | } // if |
---|
787 | } // addIdListToType |
---|
788 | |
---|
789 | DeclarationNode * DeclarationNode::addIdList( DeclarationNode * ids ) { |
---|
790 | type = addIdListToType( type, ids ); |
---|
791 | return this; |
---|
792 | } |
---|
793 | |
---|
794 | DeclarationNode * DeclarationNode::addInitializer( InitializerNode * init ) { |
---|
795 | initializer = init; |
---|
796 | return this; |
---|
797 | } |
---|
798 | |
---|
799 | DeclarationNode * DeclarationNode::cloneType( string * newName ) { |
---|
800 | DeclarationNode * newnode = new DeclarationNode; |
---|
801 | newnode->type = maybeClone( type ); |
---|
802 | assert( storageClass == NoStorageClass ); |
---|
803 | newnode->copyStorageClasses( this ); |
---|
804 | assert( newName ); |
---|
805 | newnode->name = newName; |
---|
806 | return newnode; |
---|
807 | } |
---|
808 | |
---|
809 | DeclarationNode * DeclarationNode::cloneBaseType( DeclarationNode * o ) { |
---|
810 | if ( ! o ) return nullptr; |
---|
811 | |
---|
812 | o->copyStorageClasses( this ); |
---|
813 | if ( type ) { |
---|
814 | TypeData * srcType = type; |
---|
815 | |
---|
816 | while ( srcType->base ) { |
---|
817 | srcType = srcType->base; |
---|
818 | } // while |
---|
819 | |
---|
820 | TypeData * newType = srcType->clone(); |
---|
821 | if ( newType->kind == TypeData::AggregateInst ) { |
---|
822 | // don't duplicate members |
---|
823 | if ( newType->aggInst.aggregate->kind == TypeData::Enum ) { |
---|
824 | delete newType->aggInst.aggregate->enumeration.constants; |
---|
825 | newType->aggInst.aggregate->enumeration.constants = nullptr; |
---|
826 | } else { |
---|
827 | assert( newType->aggInst.aggregate->kind == TypeData::Aggregate ); |
---|
828 | delete newType->aggInst.aggregate->aggregate.fields; |
---|
829 | newType->aggInst.aggregate->aggregate.fields = nullptr; |
---|
830 | } // if |
---|
831 | } // if |
---|
832 | |
---|
833 | newType->forall = maybeClone( type->forall ); |
---|
834 | if ( ! o->type ) { |
---|
835 | o->type = newType; |
---|
836 | } else { |
---|
837 | addTypeToType( newType, o->type ); |
---|
838 | delete newType; |
---|
839 | } // if |
---|
840 | } // if |
---|
841 | return o; |
---|
842 | } |
---|
843 | |
---|
844 | DeclarationNode * DeclarationNode::extractAggregate() const { |
---|
845 | if ( type ) { |
---|
846 | TypeData * ret = typeextractAggregate( type ); |
---|
847 | if ( ret ) { |
---|
848 | DeclarationNode * newnode = new DeclarationNode; |
---|
849 | newnode->type = ret; |
---|
850 | return newnode; |
---|
851 | } // if |
---|
852 | } // if |
---|
853 | return nullptr; |
---|
854 | } |
---|
855 | |
---|
856 | void buildList( const DeclarationNode * firstNode, std::list< Declaration * > &outputList ) { |
---|
857 | SemanticError errors; |
---|
858 | std::back_insert_iterator< std::list< Declaration * > > out( outputList ); |
---|
859 | const DeclarationNode * cur = firstNode; |
---|
860 | |
---|
861 | while ( cur ) { |
---|
862 | try { |
---|
863 | if ( DeclarationNode * extr = cur->extractAggregate() ) { |
---|
864 | // handle the case where a structure declaration is contained within an object or type declaration |
---|
865 | Declaration * decl = extr->build(); |
---|
866 | if ( decl ) { |
---|
867 | * out++ = decl; |
---|
868 | } // if |
---|
869 | delete extr; |
---|
870 | } // if |
---|
871 | |
---|
872 | Declaration * decl = cur->build(); |
---|
873 | if ( decl ) { |
---|
874 | * out++ = decl; |
---|
875 | } // if |
---|
876 | } catch( SemanticError &e ) { |
---|
877 | errors.append( e ); |
---|
878 | } // try |
---|
879 | cur = dynamic_cast< DeclarationNode * >( cur->get_next() ); |
---|
880 | } // while |
---|
881 | |
---|
882 | if ( ! errors.isEmpty() ) { |
---|
883 | throw errors; |
---|
884 | } // if |
---|
885 | } // buildList |
---|
886 | |
---|
887 | void buildList( const DeclarationNode * firstNode, std::list< DeclarationWithType * > &outputList ) { |
---|
888 | SemanticError errors; |
---|
889 | std::back_insert_iterator< std::list< DeclarationWithType * > > out( outputList ); |
---|
890 | const DeclarationNode * cur = firstNode; |
---|
891 | while ( cur ) { |
---|
892 | try { |
---|
893 | Declaration * decl = cur->build(); |
---|
894 | if ( decl ) { |
---|
895 | if ( DeclarationWithType * dwt = dynamic_cast< DeclarationWithType * >( decl ) ) { |
---|
896 | * out++ = dwt; |
---|
897 | } else if ( StructDecl * agg = dynamic_cast< StructDecl * >( decl ) ) { |
---|
898 | StructInstType * inst = new StructInstType( Type::Qualifiers(), agg->get_name() ); |
---|
899 | * out++ = new ObjectDecl( "", DeclarationNode::NoStorageClass, linkage, nullptr, inst, nullptr ); |
---|
900 | delete agg; |
---|
901 | } else if ( UnionDecl * agg = dynamic_cast< UnionDecl * >( decl ) ) { |
---|
902 | UnionInstType * inst = new UnionInstType( Type::Qualifiers(), agg->get_name() ); |
---|
903 | * out++ = new ObjectDecl( "", DeclarationNode::NoStorageClass, linkage, nullptr, inst, nullptr ); |
---|
904 | } // if |
---|
905 | } // if |
---|
906 | } catch( SemanticError &e ) { |
---|
907 | errors.append( e ); |
---|
908 | } // try |
---|
909 | cur = dynamic_cast< DeclarationNode * >( cur->get_next() ); |
---|
910 | } // while |
---|
911 | if ( ! errors.isEmpty() ) { |
---|
912 | throw errors; |
---|
913 | } // if |
---|
914 | } // buildList |
---|
915 | |
---|
916 | void buildTypeList( const DeclarationNode * firstNode, std::list< Type * > &outputList ) { |
---|
917 | SemanticError errors; |
---|
918 | std::back_insert_iterator< std::list< Type * > > out( outputList ); |
---|
919 | const DeclarationNode * cur = firstNode; |
---|
920 | |
---|
921 | while ( cur ) { |
---|
922 | try { |
---|
923 | * out++ = cur->buildType(); |
---|
924 | } catch( SemanticError &e ) { |
---|
925 | errors.append( e ); |
---|
926 | } // try |
---|
927 | cur = dynamic_cast< DeclarationNode * >( cur->get_next() ); |
---|
928 | } // while |
---|
929 | |
---|
930 | if ( ! errors.isEmpty() ) { |
---|
931 | throw errors; |
---|
932 | } // if |
---|
933 | } // buildTypeList |
---|
934 | |
---|
935 | Declaration * DeclarationNode::build() const { |
---|
936 | if ( ! error.empty() ) throw SemanticError( error + " in declaration of ", this ); |
---|
937 | |
---|
938 | // if ( variable.name ) { |
---|
939 | if ( variable.tyClass != NoTypeClass ) { |
---|
940 | static const TypeDecl::Kind kindMap[] = { TypeDecl::Any, TypeDecl::Ftype, TypeDecl::Dtype }; |
---|
941 | // TypeDecl * ret = new TypeDecl( *variable.name, DeclarationNode::NoStorageClass, nullptr, kindMap[ variable.tyClass ] ); |
---|
942 | TypeDecl * ret = new TypeDecl( *name, DeclarationNode::NoStorageClass, nullptr, kindMap[ variable.tyClass ] ); |
---|
943 | buildList( variable.assertions, ret->get_assertions() ); |
---|
944 | return ret; |
---|
945 | } // if |
---|
946 | |
---|
947 | if ( type ) { |
---|
948 | return buildDecl( type, name ? *name : string( "" ), storageClass, maybeBuild< Expression >( bitfieldWidth ), isInline, isNoreturn, linkage, maybeBuild< Initializer >(initializer) )->set_extension( extension ); |
---|
949 | } // if |
---|
950 | |
---|
951 | if ( ! isInline && ! isNoreturn ) { |
---|
952 | assertf( name, "ObjectDecl are assumed to have names\n" ); |
---|
953 | return (new ObjectDecl( *name, storageClass, linkage, maybeBuild< Expression >( bitfieldWidth ), nullptr, maybeBuild< Initializer >( initializer ) ))->set_extension( extension ); |
---|
954 | } // if |
---|
955 | |
---|
956 | throw SemanticError( "invalid function specifier ", this ); |
---|
957 | } |
---|
958 | |
---|
959 | Type * DeclarationNode::buildType() const { |
---|
960 | assert( type ); |
---|
961 | |
---|
962 | if ( attr.expr ) { |
---|
963 | // return new AttrType( buildQualifiers( type ), *attr.name, attr.expr->build() ); |
---|
964 | return new AttrType( buildQualifiers( type ), *name, attr.expr->build() ); |
---|
965 | } else if ( attr.type ) { |
---|
966 | // return new AttrType( buildQualifiers( type ), *attr.name, attr.type->buildType() ); |
---|
967 | return new AttrType( buildQualifiers( type ), *name, attr.type->buildType() ); |
---|
968 | } // if |
---|
969 | |
---|
970 | switch ( type->kind ) { |
---|
971 | case TypeData::Enum: |
---|
972 | return new EnumInstType( buildQualifiers( type ), *type->enumeration.name ); |
---|
973 | case TypeData::Aggregate: { |
---|
974 | ReferenceToType * ret; |
---|
975 | switch ( type->aggregate.kind ) { |
---|
976 | case DeclarationNode::Struct: |
---|
977 | ret = new StructInstType( buildQualifiers( type ), *type->aggregate.name ); |
---|
978 | break; |
---|
979 | case DeclarationNode::Union: |
---|
980 | ret = new UnionInstType( buildQualifiers( type ), *type->aggregate.name ); |
---|
981 | break; |
---|
982 | case DeclarationNode::Trait: |
---|
983 | ret = new TraitInstType( buildQualifiers( type ), *type->aggregate.name ); |
---|
984 | break; |
---|
985 | default: |
---|
986 | assert( false ); |
---|
987 | } // switch |
---|
988 | buildList( type->aggregate.actuals, ret->get_parameters() ); |
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989 | return ret; |
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990 | } |
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991 | case TypeData::Symbolic: { |
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992 | TypeInstType * ret = new TypeInstType( buildQualifiers( type ), *type->symbolic.name, false ); |
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993 | buildList( type->symbolic.actuals, ret->get_parameters() ); |
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994 | return ret; |
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995 | } |
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996 | default: |
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997 | return typebuild( type ); |
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998 | } // switch |
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999 | } |
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1000 | |
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1001 | // Local Variables: // |
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1002 | // tab-width: 4 // |
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1003 | // mode: c++ // |
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1004 | // compile-command: "make install" // |
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1005 | // End: // |
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