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 : Thu Dec 14 19:05:17 2023 |
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13 | // Update Count : 1407 |
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14 | // |
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15 | |
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16 | #include "DeclarationNode.h" |
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17 | |
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18 | #include <cassert> // for assert, assertf, strict_dynamic_cast |
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19 | #include <iterator> // for back_insert_iterator |
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20 | #include <list> // for list |
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21 | #include <memory> // for unique_ptr |
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22 | #include <ostream> // for operator<<, ostream, basic_ostream |
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23 | #include <string> // for string, operator+, allocator, char... |
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24 | |
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25 | #include "AST/Attribute.hpp" // for Attribute |
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26 | #include "AST/Copy.hpp" // for shallowCopy |
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27 | #include "AST/Decl.hpp" // for Decl |
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28 | #include "AST/Expr.hpp" // for Expr |
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29 | #include "AST/Print.hpp" // for print |
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30 | #include "AST/Stmt.hpp" // for AsmStmt, DirectiveStmt |
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31 | #include "AST/StorageClasses.hpp" // for Storage::Class |
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32 | #include "AST/Type.hpp" // for Type |
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33 | #include "Common/CodeLocation.h" // for CodeLocation |
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34 | #include "Common/Iterate.hpp" // for reverseIterate |
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35 | #include "Common/SemanticError.h" // for SemanticError |
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36 | #include "Common/UniqueName.h" // for UniqueName |
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37 | #include "Common/utility.h" // for copy, spliceBegin |
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38 | #include "Parser/ExpressionNode.h" // for ExpressionNode |
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39 | #include "Parser/InitializerNode.h"// for InitializerNode |
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40 | #include "Parser/StatementNode.h" // for StatementNode |
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41 | #include "TypeData.h" // for TypeData, TypeData::Aggregate_t |
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42 | #include "TypedefTable.h" // for TypedefTable |
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43 | |
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44 | extern TypedefTable typedefTable; |
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45 | |
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46 | using namespace std; |
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47 | |
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48 | // These must harmonize with the corresponding DeclarationNode enumerations. |
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49 | const char * DeclarationNode::basicTypeNames[] = { |
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50 | "void", "_Bool", "char", "int", "int128", |
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51 | "float", "double", "long double", "float80", "float128", |
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52 | "_float16", "_float32", "_float32x", "_float64", "_float64x", "_float128", "_float128x", "NoBasicTypeNames" |
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53 | }; |
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54 | const char * DeclarationNode::complexTypeNames[] = { |
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55 | "_Complex", "NoComplexTypeNames", "_Imaginary" |
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56 | }; // Imaginary unsupported => parse, but make invisible and print error message |
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57 | const char * DeclarationNode::signednessNames[] = { |
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58 | "signed", "unsigned", "NoSignednessNames" |
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59 | }; |
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60 | const char * DeclarationNode::lengthNames[] = { |
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61 | "short", "long", "long long", "NoLengthNames" |
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62 | }; |
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63 | const char * DeclarationNode::builtinTypeNames[] = { |
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64 | "__builtin_va_list", "__auto_type", "zero_t", "one_t", "NoBuiltinTypeNames" |
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65 | }; |
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66 | |
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67 | UniqueName DeclarationNode::anonymous( "__anonymous" ); |
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68 | |
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69 | extern ast::Linkage::Spec linkage; // defined in parser.yy |
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70 | |
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71 | DeclarationNode::DeclarationNode() : |
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72 | linkage( ::linkage ) { |
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73 | |
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74 | // variable.name = nullptr; |
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75 | variable.tyClass = ast::TypeDecl::NUMBER_OF_KINDS; |
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76 | variable.assertions = nullptr; |
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77 | variable.initializer = nullptr; |
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78 | |
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79 | assert.condition = nullptr; |
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80 | assert.message = nullptr; |
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81 | } |
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82 | |
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83 | DeclarationNode::~DeclarationNode() { |
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84 | // delete variable.name; |
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85 | delete variable.assertions; |
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86 | delete variable.initializer; |
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87 | |
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88 | // delete type; |
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89 | delete bitfieldWidth; |
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90 | |
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91 | delete asmStmt; |
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92 | // asmName, no delete, passed to next stage |
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93 | delete initializer; |
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94 | |
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95 | delete assert.condition; |
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96 | delete assert.message; |
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97 | } |
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98 | |
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99 | DeclarationNode * DeclarationNode::clone() const { |
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100 | DeclarationNode * newnode = new DeclarationNode; |
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101 | newnode->set_next( maybeCopy( get_next() ) ); |
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102 | newnode->name = name ? new string( *name ) : nullptr; |
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103 | |
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104 | newnode->builtin = NoBuiltinType; |
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105 | newnode->type = maybeCopy( type ); |
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106 | newnode->inLine = inLine; |
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107 | newnode->storageClasses = storageClasses; |
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108 | newnode->funcSpecs = funcSpecs; |
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109 | newnode->bitfieldWidth = maybeCopy( bitfieldWidth ); |
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110 | newnode->enumeratorValue.reset( maybeCopy( enumeratorValue.get() ) ); |
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111 | newnode->hasEllipsis = hasEllipsis; |
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112 | newnode->linkage = linkage; |
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113 | newnode->asmName = maybeCopy( asmName ); |
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114 | newnode->attributes = attributes; |
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115 | newnode->initializer = maybeCopy( initializer ); |
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116 | newnode->extension = extension; |
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117 | newnode->asmStmt = maybeCopy( asmStmt ); |
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118 | newnode->error = error; |
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119 | |
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120 | // newnode->variable.name = variable.name ? new string( *variable.name ) : nullptr; |
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121 | newnode->variable.tyClass = variable.tyClass; |
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122 | newnode->variable.assertions = maybeCopy( variable.assertions ); |
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123 | newnode->variable.initializer = maybeCopy( variable.initializer ); |
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124 | |
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125 | newnode->assert.condition = maybeCopy( assert.condition ); |
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126 | newnode->assert.message = maybeCopy( assert.message ); |
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127 | return newnode; |
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128 | } // DeclarationNode::clone |
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129 | |
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130 | void DeclarationNode::print( std::ostream & os, int indent ) const { |
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131 | os << string( indent, ' ' ); |
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132 | if ( name ) { |
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133 | os << *name << ": "; |
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134 | } // if |
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135 | |
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136 | if ( linkage != ast::Linkage::Cforall ) { |
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137 | os << ast::Linkage::name( linkage ) << " "; |
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138 | } // if |
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139 | |
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140 | ast::print( os, storageClasses ); |
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141 | ast::print( os, funcSpecs ); |
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142 | |
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143 | if ( type ) { |
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144 | type->print( os, indent ); |
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145 | } else { |
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146 | os << "untyped entity "; |
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147 | } // if |
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148 | |
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149 | if ( bitfieldWidth ) { |
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150 | os << endl << string( indent + 2, ' ' ) << "with bitfield width "; |
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151 | bitfieldWidth->printOneLine( os ); |
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152 | } // if |
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153 | |
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154 | if ( initializer ) { |
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155 | os << endl << string( indent + 2, ' ' ) << "with initializer "; |
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156 | initializer->printOneLine( os ); |
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157 | os << " maybe constructed? " << initializer->get_maybeConstructed(); |
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158 | } // if |
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159 | |
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160 | if ( ! attributes.empty() ) { |
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161 | os << string( indent + 2, ' ' ) << "with attributes " << endl; |
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162 | for ( ast::ptr<ast::Attribute> const & attr : reverseIterate( attributes ) ) { |
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163 | os << string( indent + 4, ' ' ) << attr->name.c_str() << endl; |
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164 | } // for |
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165 | } // if |
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166 | |
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167 | os << endl; |
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168 | } |
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169 | |
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170 | void DeclarationNode::printList( std::ostream & os, int indent ) const { |
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171 | ParseNode::printList( os, indent ); |
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172 | if ( hasEllipsis ) { |
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173 | os << string( indent, ' ' ) << "and a variable number of other arguments" << endl; |
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174 | } // if |
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175 | } |
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176 | |
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177 | DeclarationNode * DeclarationNode::newStorageClass( ast::Storage::Classes sc ) { |
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178 | DeclarationNode * newnode = new DeclarationNode; |
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179 | newnode->storageClasses = sc; |
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180 | return newnode; |
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181 | } // DeclarationNode::newStorageClass |
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182 | |
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183 | DeclarationNode * DeclarationNode::newFuncSpecifier( ast::Function::Specs fs ) { |
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184 | DeclarationNode * newnode = new DeclarationNode; |
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185 | newnode->funcSpecs = fs; |
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186 | return newnode; |
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187 | } // DeclarationNode::newFuncSpecifier |
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188 | |
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189 | DeclarationNode * DeclarationNode::newTypeQualifier( ast::CV::Qualifiers tq ) { |
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190 | DeclarationNode * newnode = new DeclarationNode; |
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191 | newnode->type = new TypeData(); |
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192 | newnode->type->qualifiers = tq; |
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193 | return newnode; |
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194 | } // DeclarationNode::newQualifier |
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195 | |
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196 | DeclarationNode * DeclarationNode::newBasicType( BasicType bt ) { |
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197 | DeclarationNode * newnode = new DeclarationNode; |
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198 | newnode->type = new TypeData( TypeData::Basic ); |
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199 | newnode->type->basictype = bt; |
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200 | return newnode; |
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201 | } // DeclarationNode::newBasicType |
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202 | |
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203 | DeclarationNode * DeclarationNode::newComplexType( ComplexType ct ) { |
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204 | DeclarationNode * newnode = new DeclarationNode; |
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205 | newnode->type = new TypeData( TypeData::Basic ); |
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206 | newnode->type->complextype = ct; |
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207 | return newnode; |
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208 | } // DeclarationNode::newComplexType |
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209 | |
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210 | DeclarationNode * DeclarationNode::newSignedNess( Signedness sn ) { |
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211 | DeclarationNode * newnode = new DeclarationNode; |
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212 | newnode->type = new TypeData( TypeData::Basic ); |
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213 | newnode->type->signedness = sn; |
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214 | return newnode; |
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215 | } // DeclarationNode::newSignedNess |
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216 | |
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217 | DeclarationNode * DeclarationNode::newLength( Length lnth ) { |
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218 | DeclarationNode * newnode = new DeclarationNode; |
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219 | newnode->type = new TypeData( TypeData::Basic ); |
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220 | newnode->type->length = lnth; |
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221 | return newnode; |
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222 | } // DeclarationNode::newLength |
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223 | |
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224 | DeclarationNode * DeclarationNode::newForall( DeclarationNode * forall ) { |
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225 | DeclarationNode * newnode = new DeclarationNode; |
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226 | newnode->type = new TypeData( TypeData::Unknown ); |
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227 | newnode->type->forall = forall; |
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228 | return newnode; |
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229 | } // DeclarationNode::newForall |
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230 | |
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231 | DeclarationNode * DeclarationNode::newFromGlobalScope() { |
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232 | DeclarationNode * newnode = new DeclarationNode; |
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233 | newnode->type = new TypeData( TypeData::GlobalScope ); |
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234 | return newnode; |
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235 | } |
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236 | |
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237 | DeclarationNode * DeclarationNode::newQualifiedType( DeclarationNode * parent, DeclarationNode * child) { |
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238 | DeclarationNode * newnode = new DeclarationNode; |
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239 | newnode->type = new TypeData( TypeData::Qualified ); |
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240 | newnode->type->qualified.parent = parent->type; |
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241 | newnode->type->qualified.child = child->type; |
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242 | parent->type = nullptr; |
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243 | child->type = nullptr; |
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244 | delete parent; |
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245 | delete child; |
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246 | return newnode; |
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247 | } |
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248 | |
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249 | DeclarationNode * DeclarationNode::newAggregate( ast::AggregateDecl::Aggregate kind, const string * name, ExpressionNode * actuals, DeclarationNode * fields, bool body ) { |
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250 | DeclarationNode * newnode = new DeclarationNode; |
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251 | newnode->type = new TypeData( TypeData::Aggregate ); |
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252 | newnode->type->aggregate.kind = kind; |
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253 | newnode->type->aggregate.anon = name == nullptr; |
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254 | newnode->type->aggregate.name = newnode->type->aggregate.anon ? new string( DeclarationNode::anonymous.newName() ) : name; |
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255 | newnode->type->aggregate.actuals = actuals; |
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256 | newnode->type->aggregate.fields = fields; |
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257 | newnode->type->aggregate.body = body; |
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258 | newnode->type->aggregate.tagged = false; |
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259 | newnode->type->aggregate.parent = nullptr; |
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260 | return newnode; |
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261 | } // DeclarationNode::newAggregate |
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262 | |
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263 | DeclarationNode * DeclarationNode::newEnum( const string * name, DeclarationNode * constants, bool body, bool typed, DeclarationNode * base, EnumHiding hiding ) { |
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264 | DeclarationNode * newnode = new DeclarationNode; |
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265 | newnode->type = new TypeData( TypeData::Enum ); |
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266 | newnode->type->enumeration.anon = name == nullptr; |
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267 | newnode->type->enumeration.name = newnode->type->enumeration.anon ? new string( DeclarationNode::anonymous.newName() ) : name; |
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268 | newnode->type->enumeration.constants = constants; |
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269 | newnode->type->enumeration.body = body; |
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270 | newnode->type->enumeration.typed = typed; |
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271 | newnode->type->enumeration.hiding = hiding; |
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272 | if ( base && base->type ) { |
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273 | newnode->type->base = base->type; |
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274 | } // if |
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275 | |
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276 | return newnode; |
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277 | } // DeclarationNode::newEnum |
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278 | |
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279 | DeclarationNode * DeclarationNode::newName( const string * name ) { |
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280 | DeclarationNode * newnode = new DeclarationNode; |
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281 | assert( ! newnode->name ); |
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282 | newnode->name = name; |
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283 | return newnode; |
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284 | } // DeclarationNode::newName |
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285 | |
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286 | DeclarationNode * DeclarationNode::newEnumConstant( const string * name, ExpressionNode * constant ) { |
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287 | DeclarationNode * newnode = newName( name ); |
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288 | newnode->enumeratorValue.reset( constant ); |
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289 | return newnode; |
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290 | } // DeclarationNode::newEnumConstant |
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291 | |
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292 | DeclarationNode * DeclarationNode::newEnumValueGeneric( const string * name, InitializerNode * init ) { |
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293 | if ( init ) { |
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294 | if ( init->get_expression() ) { |
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295 | return newEnumConstant( name, init->get_expression() ); |
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296 | } else { |
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297 | DeclarationNode * newnode = newName( name ); |
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298 | newnode->initializer = init; |
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299 | return newnode; |
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300 | } // if |
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301 | } else { |
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302 | return newName( name ); |
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303 | } // if |
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304 | } // DeclarationNode::newEnumValueGeneric |
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305 | |
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306 | DeclarationNode * DeclarationNode::newEnumInLine( const string name ) { |
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307 | DeclarationNode * newnode = newName( new std::string(name) ); |
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308 | newnode->enumInLine = true; |
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309 | return newnode; |
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310 | } |
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311 | |
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312 | DeclarationNode * DeclarationNode::newFromTypedef( const string * name ) { |
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313 | DeclarationNode * newnode = new DeclarationNode; |
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314 | newnode->type = new TypeData( TypeData::SymbolicInst ); |
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315 | newnode->type->symbolic.name = name; |
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316 | newnode->type->symbolic.isTypedef = true; |
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317 | newnode->type->symbolic.params = nullptr; |
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318 | return newnode; |
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319 | } // DeclarationNode::newFromTypedef |
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320 | |
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321 | DeclarationNode * DeclarationNode::newFromTypeGen( const string * name, ExpressionNode * params ) { |
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322 | DeclarationNode * newnode = new DeclarationNode; |
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323 | newnode->type = new TypeData( TypeData::SymbolicInst ); |
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324 | newnode->type->symbolic.name = name; |
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325 | newnode->type->symbolic.isTypedef = false; |
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326 | newnode->type->symbolic.actuals = params; |
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327 | return newnode; |
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328 | } // DeclarationNode::newFromTypeGen |
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329 | |
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330 | DeclarationNode * DeclarationNode::newTypeParam( ast::TypeDecl::Kind tc, const string * name ) { |
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331 | DeclarationNode * newnode = newName( name ); |
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332 | newnode->type = nullptr; |
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333 | newnode->variable.tyClass = tc; |
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334 | newnode->variable.assertions = nullptr; |
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335 | return newnode; |
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336 | } // DeclarationNode::newTypeParam |
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337 | |
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338 | DeclarationNode * DeclarationNode::newTrait( const string * name, DeclarationNode * params, DeclarationNode * asserts ) { |
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339 | DeclarationNode * newnode = new DeclarationNode; |
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340 | newnode->type = new TypeData( TypeData::Aggregate ); |
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341 | newnode->type->aggregate.name = name; |
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342 | newnode->type->aggregate.kind = ast::AggregateDecl::Trait; |
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343 | newnode->type->aggregate.params = params; |
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344 | newnode->type->aggregate.fields = asserts; |
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345 | return newnode; |
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346 | } // DeclarationNode::newTrait |
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347 | |
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348 | DeclarationNode * DeclarationNode::newTraitUse( const string * name, ExpressionNode * params ) { |
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349 | DeclarationNode * newnode = new DeclarationNode; |
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350 | newnode->type = new TypeData( TypeData::AggregateInst ); |
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351 | newnode->type->aggInst.aggregate = new TypeData( TypeData::Aggregate ); |
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352 | newnode->type->aggInst.aggregate->aggregate.kind = ast::AggregateDecl::Trait; |
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353 | newnode->type->aggInst.aggregate->aggregate.name = name; |
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354 | newnode->type->aggInst.params = params; |
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355 | return newnode; |
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356 | } // DeclarationNode::newTraitUse |
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357 | |
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358 | DeclarationNode * DeclarationNode::newTypeDecl( const string * name, DeclarationNode * typeParams ) { |
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359 | DeclarationNode * newnode = newName( name ); |
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360 | newnode->type = new TypeData( TypeData::Symbolic ); |
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361 | newnode->type->symbolic.isTypedef = false; |
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362 | newnode->type->symbolic.params = typeParams; |
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363 | return newnode; |
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364 | } // DeclarationNode::newTypeDecl |
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365 | |
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366 | DeclarationNode * DeclarationNode::newPointer( DeclarationNode * qualifiers, OperKinds kind ) { |
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367 | DeclarationNode * newnode = new DeclarationNode; |
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368 | newnode->type = new TypeData( kind == OperKinds::PointTo ? TypeData::Pointer : TypeData::Reference ); |
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369 | if ( kind == OperKinds::And ) { |
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370 | // T && is parsed as 'And' operator rather than two references => add a second reference type |
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371 | TypeData * td = new TypeData( TypeData::Reference ); |
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372 | td->base = newnode->type; |
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373 | newnode->type = td; |
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374 | } |
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375 | if ( qualifiers ) { |
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376 | return newnode->addQualifiers( qualifiers ); |
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377 | } else { |
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378 | return newnode; |
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379 | } // if |
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380 | } // DeclarationNode::newPointer |
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381 | |
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382 | DeclarationNode * DeclarationNode::newArray( ExpressionNode * size, DeclarationNode * qualifiers, bool isStatic ) { |
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383 | DeclarationNode * newnode = new DeclarationNode; |
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384 | newnode->type = new TypeData( TypeData::Array ); |
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385 | newnode->type->array.dimension = size; |
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386 | newnode->type->array.isStatic = isStatic; |
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387 | if ( newnode->type->array.dimension == nullptr || newnode->type->array.dimension->isExpressionType<ast::ConstantExpr *>() ) { |
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388 | newnode->type->array.isVarLen = false; |
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389 | } else { |
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390 | newnode->type->array.isVarLen = true; |
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391 | } // if |
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392 | return newnode->addQualifiers( qualifiers ); |
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393 | } // DeclarationNode::newArray |
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394 | |
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395 | DeclarationNode * DeclarationNode::newVarArray( DeclarationNode * qualifiers ) { |
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396 | DeclarationNode * newnode = new DeclarationNode; |
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397 | newnode->type = new TypeData( TypeData::Array ); |
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398 | newnode->type->array.dimension = nullptr; |
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399 | newnode->type->array.isStatic = false; |
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400 | newnode->type->array.isVarLen = true; |
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401 | return newnode->addQualifiers( qualifiers ); |
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402 | } |
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403 | |
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404 | DeclarationNode * DeclarationNode::newBitfield( ExpressionNode * size ) { |
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405 | DeclarationNode * newnode = new DeclarationNode; |
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406 | newnode->bitfieldWidth = size; |
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407 | return newnode; |
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408 | } |
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409 | |
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410 | DeclarationNode * DeclarationNode::newTuple( DeclarationNode * members ) { |
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411 | DeclarationNode * newnode = new DeclarationNode; |
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412 | newnode->type = new TypeData( TypeData::Tuple ); |
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413 | newnode->type->tuple = members; |
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414 | return newnode; |
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415 | } |
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416 | |
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417 | DeclarationNode * DeclarationNode::newTypeof( ExpressionNode * expr, bool basetypeof ) { |
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418 | DeclarationNode * newnode = new DeclarationNode; |
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419 | newnode->type = new TypeData( basetypeof ? TypeData::Basetypeof : TypeData::Typeof ); |
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420 | newnode->type->typeexpr = expr; |
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421 | return newnode; |
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422 | } |
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423 | |
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424 | DeclarationNode * DeclarationNode::newVtableType( DeclarationNode * decl ) { |
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425 | DeclarationNode * newnode = new DeclarationNode; |
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426 | newnode->type = new TypeData( TypeData::Vtable ); |
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427 | newnode->setBase( decl->type ); |
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428 | return newnode; |
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429 | } |
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430 | |
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431 | DeclarationNode * DeclarationNode::newBuiltinType( BuiltinType bt ) { |
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432 | DeclarationNode * newnode = new DeclarationNode; |
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433 | newnode->type = new TypeData( TypeData::Builtin ); |
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434 | newnode->builtin = bt; |
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435 | newnode->type->builtintype = newnode->builtin; |
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436 | return newnode; |
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437 | } // DeclarationNode::newBuiltinType |
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438 | |
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439 | DeclarationNode * DeclarationNode::newFunction( const string * name, DeclarationNode * ret, DeclarationNode * param, StatementNode * body ) { |
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440 | DeclarationNode * newnode = newName( name ); |
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441 | newnode->type = new TypeData( TypeData::Function ); |
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442 | newnode->type->function.params = param; |
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443 | newnode->type->function.body = body; |
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444 | |
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445 | if ( ret ) { |
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446 | newnode->type->base = ret->type; |
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447 | ret->type = nullptr; |
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448 | delete ret; |
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449 | } // if |
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450 | |
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451 | return newnode; |
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452 | } // DeclarationNode::newFunction |
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453 | |
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454 | DeclarationNode * DeclarationNode::newAttribute( const string * name, ExpressionNode * expr ) { |
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455 | DeclarationNode * newnode = new DeclarationNode; |
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456 | newnode->type = nullptr; |
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457 | std::vector<ast::ptr<ast::Expr>> exprs; |
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458 | buildList( expr, exprs ); |
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459 | newnode->attributes.push_back( new ast::Attribute( *name, std::move( exprs ) ) ); |
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460 | delete name; |
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461 | return newnode; |
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462 | } |
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463 | |
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464 | DeclarationNode * DeclarationNode::newDirectiveStmt( StatementNode * stmt ) { |
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465 | DeclarationNode * newnode = new DeclarationNode; |
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466 | newnode->directiveStmt = stmt; |
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467 | return newnode; |
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468 | } |
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469 | |
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470 | DeclarationNode * DeclarationNode::newAsmStmt( StatementNode * stmt ) { |
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471 | DeclarationNode * newnode = new DeclarationNode; |
---|
472 | newnode->asmStmt = stmt; |
---|
473 | return newnode; |
---|
474 | } |
---|
475 | |
---|
476 | DeclarationNode * DeclarationNode::newStaticAssert( ExpressionNode * condition, ast::Expr * message ) { |
---|
477 | DeclarationNode * newnode = new DeclarationNode; |
---|
478 | newnode->assert.condition = condition; |
---|
479 | newnode->assert.message = message; |
---|
480 | return newnode; |
---|
481 | } |
---|
482 | |
---|
483 | static void appendError( string & dst, const string & src ) { |
---|
484 | if ( src.empty() ) return; |
---|
485 | if ( dst.empty() ) { dst = src; return; } |
---|
486 | dst += ", " + src; |
---|
487 | } // appendError |
---|
488 | |
---|
489 | void DeclarationNode::checkQualifiers( const TypeData * src, const TypeData * dst ) { |
---|
490 | const ast::CV::Qualifiers qsrc = src->qualifiers, qdst = dst->qualifiers; // optimization |
---|
491 | const ast::CV::Qualifiers duplicates = qsrc & qdst; |
---|
492 | |
---|
493 | if ( duplicates.any() ) { |
---|
494 | std::stringstream str; |
---|
495 | str << "duplicate "; |
---|
496 | ast::print( str, duplicates ); |
---|
497 | str << "qualifier(s)"; |
---|
498 | appendError( error, str.str() ); |
---|
499 | } // for |
---|
500 | } // DeclarationNode::checkQualifiers |
---|
501 | |
---|
502 | void DeclarationNode::checkSpecifiers( DeclarationNode * src ) { |
---|
503 | ast::Function::Specs fsDups = funcSpecs & src->funcSpecs; |
---|
504 | if ( fsDups.any() ) { |
---|
505 | std::stringstream str; |
---|
506 | str << "duplicate "; |
---|
507 | ast::print( str, fsDups ); |
---|
508 | str << "function specifier(s)"; |
---|
509 | appendError( error, str.str() ); |
---|
510 | } // if |
---|
511 | |
---|
512 | // Skip if everything is unset. |
---|
513 | if ( storageClasses.any() && src->storageClasses.any() ) { |
---|
514 | ast::Storage::Classes dups = storageClasses & src->storageClasses; |
---|
515 | // Check for duplicates. |
---|
516 | if ( dups.any() ) { |
---|
517 | std::stringstream str; |
---|
518 | str << "duplicate "; |
---|
519 | ast::print( str, dups ); |
---|
520 | str << "storage class(es)"; |
---|
521 | appendError( error, str.str() ); |
---|
522 | // Check for conflicts. |
---|
523 | } else if ( !src->storageClasses.is_threadlocal_any() ) { |
---|
524 | std::stringstream str; |
---|
525 | str << "conflicting "; |
---|
526 | ast::print( str, ast::Storage::Classes( 1 << storageClasses.ffs() ) ); |
---|
527 | str << "& "; |
---|
528 | ast::print( str, ast::Storage::Classes( 1 << src->storageClasses.ffs() ) ); |
---|
529 | str << "storage classes"; |
---|
530 | appendError( error, str.str() ); |
---|
531 | // FIX to preserve invariant of one basic storage specifier |
---|
532 | src->storageClasses.reset(); |
---|
533 | } |
---|
534 | } // if |
---|
535 | |
---|
536 | appendError( error, src->error ); |
---|
537 | } // DeclarationNode::checkSpecifiers |
---|
538 | |
---|
539 | DeclarationNode * DeclarationNode::copySpecifiers( DeclarationNode * q ) { |
---|
540 | funcSpecs |= q->funcSpecs; |
---|
541 | storageClasses |= q->storageClasses; |
---|
542 | |
---|
543 | std::vector<ast::ptr<ast::Attribute>> tmp; |
---|
544 | tmp.reserve( q->attributes.size() ); |
---|
545 | for ( auto const & attr : q->attributes ) { |
---|
546 | tmp.emplace_back( ast::shallowCopy( attr.get() ) ); |
---|
547 | } |
---|
548 | spliceBegin( attributes, tmp ); |
---|
549 | |
---|
550 | return this; |
---|
551 | } // DeclarationNode::copySpecifiers |
---|
552 | |
---|
553 | static void addQualifiersToType( TypeData *& src, TypeData * dst ) { |
---|
554 | if ( dst->base ) { |
---|
555 | addQualifiersToType( src, dst->base ); |
---|
556 | } else if ( dst->kind == TypeData::Function ) { |
---|
557 | dst->base = src; |
---|
558 | src = nullptr; |
---|
559 | } else { |
---|
560 | dst->qualifiers |= src->qualifiers; |
---|
561 | } // if |
---|
562 | } // addQualifiersToType |
---|
563 | |
---|
564 | DeclarationNode * DeclarationNode::addQualifiers( DeclarationNode * q ) { |
---|
565 | if ( ! q ) { return this; } // empty qualifier |
---|
566 | |
---|
567 | checkSpecifiers( q ); |
---|
568 | copySpecifiers( q ); |
---|
569 | |
---|
570 | if ( ! q->type ) { delete q; return this; } |
---|
571 | |
---|
572 | if ( ! type ) { |
---|
573 | type = q->type; // reuse structure |
---|
574 | q->type = nullptr; |
---|
575 | delete q; |
---|
576 | return this; |
---|
577 | } // if |
---|
578 | |
---|
579 | if ( q->type->forall ) { // forall qualifier ? |
---|
580 | if ( type->forall ) { // polymorphic routine ? |
---|
581 | type->forall->appendList( q->type->forall ); // augment forall qualifier |
---|
582 | } else { |
---|
583 | if ( type->kind == TypeData::Aggregate ) { // struct/union ? |
---|
584 | if ( type->aggregate.params ) { // polymorphic ? |
---|
585 | type->aggregate.params->appendList( q->type->forall ); // augment forall qualifier |
---|
586 | } else { // not polymorphic |
---|
587 | type->aggregate.params = q->type->forall; // set forall qualifier |
---|
588 | } // if |
---|
589 | } else { // not polymorphic |
---|
590 | type->forall = q->type->forall; // make polymorphic routine |
---|
591 | } // if |
---|
592 | } // if |
---|
593 | q->type->forall = nullptr; // forall qualifier moved |
---|
594 | } // if |
---|
595 | |
---|
596 | checkQualifiers( type, q->type ); |
---|
597 | if ( (builtin == Zero || builtin == One) && q->type->qualifiers.any() && error.length() == 0 ) { |
---|
598 | SemanticWarning( yylloc, Warning::BadQualifiersZeroOne, builtinTypeNames[builtin] ); |
---|
599 | } // if |
---|
600 | addQualifiersToType( q->type, type ); |
---|
601 | |
---|
602 | delete q; |
---|
603 | return this; |
---|
604 | } // addQualifiers |
---|
605 | |
---|
606 | static void addTypeToType( TypeData *& src, TypeData *& dst ) { |
---|
607 | if ( src->forall && dst->kind == TypeData::Function ) { |
---|
608 | if ( dst->forall ) { |
---|
609 | dst->forall->appendList( src->forall ); |
---|
610 | } else { |
---|
611 | dst->forall = src->forall; |
---|
612 | } // if |
---|
613 | src->forall = nullptr; |
---|
614 | } // if |
---|
615 | if ( dst->base ) { |
---|
616 | addTypeToType( src, dst->base ); |
---|
617 | } else { |
---|
618 | switch ( dst->kind ) { |
---|
619 | case TypeData::Unknown: |
---|
620 | src->qualifiers |= dst->qualifiers; |
---|
621 | dst = src; |
---|
622 | src = nullptr; |
---|
623 | break; |
---|
624 | case TypeData::Basic: |
---|
625 | dst->qualifiers |= src->qualifiers; |
---|
626 | if ( src->kind != TypeData::Unknown ) { |
---|
627 | assert( src->kind == TypeData::Basic ); |
---|
628 | |
---|
629 | if ( dst->basictype == DeclarationNode::NoBasicType ) { |
---|
630 | dst->basictype = src->basictype; |
---|
631 | } else if ( src->basictype != DeclarationNode::NoBasicType ) |
---|
632 | SemanticError( yylloc, "multiple declaration types \"%s\" and \"%s\".", |
---|
633 | DeclarationNode::basicTypeNames[ dst->basictype ], |
---|
634 | DeclarationNode::basicTypeNames[ src->basictype ] ); |
---|
635 | if ( dst->complextype == DeclarationNode::NoComplexType ) { |
---|
636 | dst->complextype = src->complextype; |
---|
637 | } else if ( src->complextype != DeclarationNode::NoComplexType ) |
---|
638 | SemanticError( yylloc, "multiple declaration types \"%s\" and \"%s\".", |
---|
639 | DeclarationNode::complexTypeNames[ src->complextype ], |
---|
640 | DeclarationNode::complexTypeNames[ src->complextype ] ); |
---|
641 | if ( dst->signedness == DeclarationNode::NoSignedness ) { |
---|
642 | dst->signedness = src->signedness; |
---|
643 | } else if ( src->signedness != DeclarationNode::NoSignedness ) |
---|
644 | SemanticError( yylloc, "conflicting type specifier \"%s\" and \"%s\".", |
---|
645 | DeclarationNode::signednessNames[ dst->signedness ], |
---|
646 | DeclarationNode::signednessNames[ src->signedness ] ); |
---|
647 | if ( dst->length == DeclarationNode::NoLength ) { |
---|
648 | dst->length = src->length; |
---|
649 | } else if ( dst->length == DeclarationNode::Long && src->length == DeclarationNode::Long ) { |
---|
650 | dst->length = DeclarationNode::LongLong; |
---|
651 | } else if ( src->length != DeclarationNode::NoLength ) |
---|
652 | SemanticError( yylloc, "conflicting type specifier \"%s\" and \"%s\".", |
---|
653 | DeclarationNode::lengthNames[ dst->length ], |
---|
654 | DeclarationNode::lengthNames[ src->length ] ); |
---|
655 | } // if |
---|
656 | break; |
---|
657 | default: |
---|
658 | switch ( src->kind ) { |
---|
659 | case TypeData::Aggregate: |
---|
660 | case TypeData::Enum: |
---|
661 | dst->base = new TypeData( TypeData::AggregateInst ); |
---|
662 | dst->base->aggInst.aggregate = src; |
---|
663 | if ( src->kind == TypeData::Aggregate ) { |
---|
664 | dst->base->aggInst.params = maybeCopy( src->aggregate.actuals ); |
---|
665 | } // if |
---|
666 | dst->base->qualifiers |= src->qualifiers; |
---|
667 | src = nullptr; |
---|
668 | break; |
---|
669 | default: |
---|
670 | if ( dst->forall ) { |
---|
671 | dst->forall->appendList( src->forall ); |
---|
672 | } else { |
---|
673 | dst->forall = src->forall; |
---|
674 | } // if |
---|
675 | src->forall = nullptr; |
---|
676 | dst->base = src; |
---|
677 | src = nullptr; |
---|
678 | } // switch |
---|
679 | } // switch |
---|
680 | } // if |
---|
681 | } |
---|
682 | |
---|
683 | DeclarationNode * DeclarationNode::addType( DeclarationNode * o ) { |
---|
684 | if ( o ) { |
---|
685 | checkSpecifiers( o ); |
---|
686 | copySpecifiers( o ); |
---|
687 | if ( o->type ) { |
---|
688 | if ( ! type ) { |
---|
689 | if ( o->type->kind == TypeData::Aggregate || o->type->kind == TypeData::Enum ) { |
---|
690 | type = new TypeData( TypeData::AggregateInst ); |
---|
691 | type->aggInst.aggregate = o->type; |
---|
692 | if ( o->type->kind == TypeData::Aggregate ) { |
---|
693 | type->aggInst.hoistType = o->type->aggregate.body; |
---|
694 | type->aggInst.params = maybeCopy( o->type->aggregate.actuals ); |
---|
695 | } else { |
---|
696 | type->aggInst.hoistType = o->type->enumeration.body; |
---|
697 | } // if |
---|
698 | type->qualifiers |= o->type->qualifiers; |
---|
699 | } else { |
---|
700 | type = o->type; |
---|
701 | } // if |
---|
702 | o->type = nullptr; |
---|
703 | } else { |
---|
704 | addTypeToType( o->type, type ); |
---|
705 | } // if |
---|
706 | } // if |
---|
707 | if ( o->bitfieldWidth ) { |
---|
708 | bitfieldWidth = o->bitfieldWidth; |
---|
709 | } // if |
---|
710 | |
---|
711 | // there may be typedefs chained onto the type |
---|
712 | if ( o->get_next() ) { |
---|
713 | set_last( o->get_next()->clone() ); |
---|
714 | } // if |
---|
715 | } // if |
---|
716 | delete o; |
---|
717 | |
---|
718 | return this; |
---|
719 | } |
---|
720 | |
---|
721 | DeclarationNode * DeclarationNode::addEnumBase( DeclarationNode * o ) { |
---|
722 | if ( o && o->type) { |
---|
723 | type->base= o->type; |
---|
724 | } // if |
---|
725 | delete o; |
---|
726 | return this; |
---|
727 | } |
---|
728 | |
---|
729 | DeclarationNode * DeclarationNode::addTypedef() { |
---|
730 | TypeData * newtype = new TypeData( TypeData::Symbolic ); |
---|
731 | newtype->symbolic.params = nullptr; |
---|
732 | newtype->symbolic.isTypedef = true; |
---|
733 | newtype->symbolic.name = name ? new string( *name ) : nullptr; |
---|
734 | newtype->base = type; |
---|
735 | type = newtype; |
---|
736 | return this; |
---|
737 | } |
---|
738 | |
---|
739 | DeclarationNode * DeclarationNode::addAssertions( DeclarationNode * assertions ) { |
---|
740 | if ( variable.tyClass != ast::TypeDecl::NUMBER_OF_KINDS ) { |
---|
741 | if ( variable.assertions ) { |
---|
742 | variable.assertions->appendList( assertions ); |
---|
743 | } else { |
---|
744 | variable.assertions = assertions; |
---|
745 | } // if |
---|
746 | return this; |
---|
747 | } // if |
---|
748 | |
---|
749 | assert( type ); |
---|
750 | switch ( type->kind ) { |
---|
751 | case TypeData::Symbolic: |
---|
752 | if ( type->symbolic.assertions ) { |
---|
753 | type->symbolic.assertions->appendList( assertions ); |
---|
754 | } else { |
---|
755 | type->symbolic.assertions = assertions; |
---|
756 | } // if |
---|
757 | break; |
---|
758 | default: |
---|
759 | assert( false ); |
---|
760 | } // switch |
---|
761 | |
---|
762 | return this; |
---|
763 | } |
---|
764 | |
---|
765 | DeclarationNode * DeclarationNode::addName( string * newname ) { |
---|
766 | assert( ! name ); |
---|
767 | name = newname; |
---|
768 | return this; |
---|
769 | } |
---|
770 | |
---|
771 | DeclarationNode * DeclarationNode::addAsmName( DeclarationNode * newname ) { |
---|
772 | assert( ! asmName ); |
---|
773 | asmName = newname ? newname->asmName : nullptr; |
---|
774 | return this->addQualifiers( newname ); |
---|
775 | } |
---|
776 | |
---|
777 | DeclarationNode * DeclarationNode::addBitfield( ExpressionNode * size ) { |
---|
778 | bitfieldWidth = size; |
---|
779 | return this; |
---|
780 | } |
---|
781 | |
---|
782 | DeclarationNode * DeclarationNode::addVarArgs() { |
---|
783 | assert( type ); |
---|
784 | hasEllipsis = true; |
---|
785 | return this; |
---|
786 | } |
---|
787 | |
---|
788 | DeclarationNode * DeclarationNode::addFunctionBody( StatementNode * body, ExpressionNode * withExprs ) { |
---|
789 | assert( type ); |
---|
790 | assert( type->kind == TypeData::Function ); |
---|
791 | assert( ! type->function.body ); |
---|
792 | type->function.body = body; |
---|
793 | type->function.withExprs = withExprs; |
---|
794 | return this; |
---|
795 | } |
---|
796 | |
---|
797 | DeclarationNode * DeclarationNode::addOldDeclList( DeclarationNode * list ) { |
---|
798 | assert( type ); |
---|
799 | assert( type->kind == TypeData::Function ); |
---|
800 | assert( ! type->function.oldDeclList ); |
---|
801 | type->function.oldDeclList = list; |
---|
802 | return this; |
---|
803 | } |
---|
804 | |
---|
805 | DeclarationNode * DeclarationNode::setBase( TypeData * newType ) { |
---|
806 | if ( type ) { |
---|
807 | TypeData * prevBase = type; |
---|
808 | TypeData * curBase = type->base; |
---|
809 | while ( curBase != nullptr ) { |
---|
810 | prevBase = curBase; |
---|
811 | curBase = curBase->base; |
---|
812 | } // while |
---|
813 | prevBase->base = newType; |
---|
814 | } else { |
---|
815 | type = newType; |
---|
816 | } // if |
---|
817 | return this; |
---|
818 | } |
---|
819 | |
---|
820 | DeclarationNode * DeclarationNode::copyAttribute( DeclarationNode * a ) { |
---|
821 | if ( a ) { |
---|
822 | spliceBegin( attributes, a->attributes ); |
---|
823 | a->attributes.clear(); |
---|
824 | } // if |
---|
825 | return this; |
---|
826 | } // copyAttribute |
---|
827 | |
---|
828 | DeclarationNode * DeclarationNode::addPointer( DeclarationNode * p ) { |
---|
829 | if ( p ) { |
---|
830 | assert( p->type->kind == TypeData::Pointer || p->type->kind == TypeData::Reference ); |
---|
831 | setBase( p->type ); |
---|
832 | p->type = nullptr; |
---|
833 | copyAttribute( p ); |
---|
834 | delete p; |
---|
835 | } // if |
---|
836 | return this; |
---|
837 | } |
---|
838 | |
---|
839 | DeclarationNode * DeclarationNode::addArray( DeclarationNode * a ) { |
---|
840 | if ( a ) { |
---|
841 | assert( a->type->kind == TypeData::Array ); |
---|
842 | setBase( a->type ); |
---|
843 | a->type = nullptr; |
---|
844 | copyAttribute( a ); |
---|
845 | delete a; |
---|
846 | } // if |
---|
847 | return this; |
---|
848 | } |
---|
849 | |
---|
850 | DeclarationNode * DeclarationNode::addNewPointer( DeclarationNode * p ) { |
---|
851 | if ( p ) { |
---|
852 | assert( p->type->kind == TypeData::Pointer || p->type->kind == TypeData::Reference ); |
---|
853 | if ( type ) { |
---|
854 | switch ( type->kind ) { |
---|
855 | case TypeData::Aggregate: |
---|
856 | case TypeData::Enum: |
---|
857 | p->type->base = new TypeData( TypeData::AggregateInst ); |
---|
858 | p->type->base->aggInst.aggregate = type; |
---|
859 | if ( type->kind == TypeData::Aggregate ) { |
---|
860 | p->type->base->aggInst.params = maybeCopy( type->aggregate.actuals ); |
---|
861 | } // if |
---|
862 | p->type->base->qualifiers |= type->qualifiers; |
---|
863 | break; |
---|
864 | |
---|
865 | default: |
---|
866 | p->type->base = type; |
---|
867 | } // switch |
---|
868 | type = nullptr; |
---|
869 | } // if |
---|
870 | delete this; |
---|
871 | return p; |
---|
872 | } else { |
---|
873 | return this; |
---|
874 | } // if |
---|
875 | } |
---|
876 | |
---|
877 | static TypeData * findLast( TypeData * a ) { |
---|
878 | assert( a ); |
---|
879 | TypeData * cur = a; |
---|
880 | while ( cur->base ) { |
---|
881 | cur = cur->base; |
---|
882 | } // while |
---|
883 | return cur; |
---|
884 | } |
---|
885 | |
---|
886 | DeclarationNode * DeclarationNode::addNewArray( DeclarationNode * a ) { |
---|
887 | if ( ! a ) return this; |
---|
888 | assert( a->type->kind == TypeData::Array ); |
---|
889 | TypeData * lastArray = findLast( a->type ); |
---|
890 | if ( type ) { |
---|
891 | switch ( type->kind ) { |
---|
892 | case TypeData::Aggregate: |
---|
893 | case TypeData::Enum: |
---|
894 | lastArray->base = new TypeData( TypeData::AggregateInst ); |
---|
895 | lastArray->base->aggInst.aggregate = type; |
---|
896 | if ( type->kind == TypeData::Aggregate ) { |
---|
897 | lastArray->base->aggInst.params = maybeCopy( type->aggregate.actuals ); |
---|
898 | } // if |
---|
899 | lastArray->base->qualifiers |= type->qualifiers; |
---|
900 | break; |
---|
901 | default: |
---|
902 | lastArray->base = type; |
---|
903 | } // switch |
---|
904 | type = nullptr; |
---|
905 | } // if |
---|
906 | delete this; |
---|
907 | return a; |
---|
908 | } |
---|
909 | |
---|
910 | DeclarationNode * DeclarationNode::addParamList( DeclarationNode * params ) { |
---|
911 | TypeData * ftype = new TypeData( TypeData::Function ); |
---|
912 | ftype->function.params = params; |
---|
913 | setBase( ftype ); |
---|
914 | return this; |
---|
915 | } |
---|
916 | |
---|
917 | static TypeData * addIdListToType( TypeData * type, DeclarationNode * ids ) { |
---|
918 | if ( type ) { |
---|
919 | if ( type->kind != TypeData::Function ) { |
---|
920 | type->base = addIdListToType( type->base, ids ); |
---|
921 | } else { |
---|
922 | type->function.idList = ids; |
---|
923 | } // if |
---|
924 | return type; |
---|
925 | } else { |
---|
926 | TypeData * newtype = new TypeData( TypeData::Function ); |
---|
927 | newtype->function.idList = ids; |
---|
928 | return newtype; |
---|
929 | } // if |
---|
930 | } // addIdListToType |
---|
931 | |
---|
932 | DeclarationNode * DeclarationNode::addIdList( DeclarationNode * ids ) { |
---|
933 | type = addIdListToType( type, ids ); |
---|
934 | return this; |
---|
935 | } |
---|
936 | |
---|
937 | DeclarationNode * DeclarationNode::addInitializer( InitializerNode * init ) { |
---|
938 | initializer = init; |
---|
939 | return this; |
---|
940 | } |
---|
941 | |
---|
942 | DeclarationNode * DeclarationNode::addTypeInitializer( DeclarationNode * init ) { |
---|
943 | assertf( variable.tyClass != ast::TypeDecl::NUMBER_OF_KINDS, "Called addTypeInitializer on something that isn't a type variable." ); |
---|
944 | variable.initializer = init; |
---|
945 | return this; |
---|
946 | } |
---|
947 | |
---|
948 | DeclarationNode * DeclarationNode::cloneType( string * name ) { |
---|
949 | DeclarationNode * newnode = newName( name ); |
---|
950 | newnode->type = maybeCopy( type ); |
---|
951 | newnode->copySpecifiers( this ); |
---|
952 | return newnode; |
---|
953 | } |
---|
954 | |
---|
955 | DeclarationNode * DeclarationNode::cloneBaseType( DeclarationNode * o ) { |
---|
956 | if ( ! o ) return nullptr; |
---|
957 | |
---|
958 | o->copySpecifiers( this ); |
---|
959 | if ( type ) { |
---|
960 | TypeData * srcType = type; |
---|
961 | |
---|
962 | // search for the base type by scanning off pointers and array designators |
---|
963 | while ( srcType->base ) { |
---|
964 | srcType = srcType->base; |
---|
965 | } // while |
---|
966 | |
---|
967 | TypeData * newType = srcType->clone(); |
---|
968 | if ( newType->kind == TypeData::AggregateInst ) { |
---|
969 | // don't duplicate members |
---|
970 | if ( newType->aggInst.aggregate->kind == TypeData::Enum ) { |
---|
971 | delete newType->aggInst.aggregate->enumeration.constants; |
---|
972 | newType->aggInst.aggregate->enumeration.constants = nullptr; |
---|
973 | newType->aggInst.aggregate->enumeration.body = false; |
---|
974 | } else { |
---|
975 | assert( newType->aggInst.aggregate->kind == TypeData::Aggregate ); |
---|
976 | delete newType->aggInst.aggregate->aggregate.fields; |
---|
977 | newType->aggInst.aggregate->aggregate.fields = nullptr; |
---|
978 | newType->aggInst.aggregate->aggregate.body = false; |
---|
979 | } // if |
---|
980 | // don't hoist twice |
---|
981 | newType->aggInst.hoistType = false; |
---|
982 | } // if |
---|
983 | |
---|
984 | newType->forall = maybeCopy( type->forall ); |
---|
985 | if ( ! o->type ) { |
---|
986 | o->type = newType; |
---|
987 | } else { |
---|
988 | addTypeToType( newType, o->type ); |
---|
989 | delete newType; |
---|
990 | } // if |
---|
991 | } // if |
---|
992 | return o; |
---|
993 | } |
---|
994 | |
---|
995 | DeclarationNode * DeclarationNode::extractAggregate() const { |
---|
996 | if ( type ) { |
---|
997 | TypeData * ret = typeextractAggregate( type ); |
---|
998 | if ( ret ) { |
---|
999 | DeclarationNode * newnode = new DeclarationNode; |
---|
1000 | newnode->type = ret; |
---|
1001 | return newnode; |
---|
1002 | } // if |
---|
1003 | } // if |
---|
1004 | return nullptr; |
---|
1005 | } |
---|
1006 | |
---|
1007 | // If a typedef wraps an anonymous declaration, name the inner declaration so it has a consistent name across |
---|
1008 | // translation units. |
---|
1009 | static void nameTypedefedDecl( |
---|
1010 | DeclarationNode * innerDecl, |
---|
1011 | const DeclarationNode * outerDecl ) { |
---|
1012 | TypeData * outer = outerDecl->type; |
---|
1013 | assert( outer ); |
---|
1014 | // First make sure this is a typedef: |
---|
1015 | if ( outer->kind != TypeData::Symbolic || !outer->symbolic.isTypedef ) { |
---|
1016 | return; |
---|
1017 | } |
---|
1018 | TypeData * inner = innerDecl->type; |
---|
1019 | assert( inner ); |
---|
1020 | // Always clear any CVs associated with the aggregate: |
---|
1021 | inner->qualifiers.reset(); |
---|
1022 | // Handle anonymous aggregates: typedef struct { int i; } foo |
---|
1023 | if ( inner->kind == TypeData::Aggregate && inner->aggregate.anon ) { |
---|
1024 | delete inner->aggregate.name; |
---|
1025 | inner->aggregate.name = new string( "__anonymous_" + *outerDecl->name ); |
---|
1026 | inner->aggregate.anon = false; |
---|
1027 | assert( outer->base ); |
---|
1028 | delete outer->base->aggInst.aggregate->aggregate.name; |
---|
1029 | outer->base->aggInst.aggregate->aggregate.name = new string( "__anonymous_" + *outerDecl->name ); |
---|
1030 | outer->base->aggInst.aggregate->aggregate.anon = false; |
---|
1031 | outer->base->aggInst.aggregate->qualifiers.reset(); |
---|
1032 | // Handle anonymous enumeration: typedef enum { A, B, C } foo |
---|
1033 | } else if ( inner->kind == TypeData::Enum && inner->enumeration.anon ) { |
---|
1034 | delete inner->enumeration.name; |
---|
1035 | inner->enumeration.name = new string( "__anonymous_" + *outerDecl->name ); |
---|
1036 | inner->enumeration.anon = false; |
---|
1037 | assert( outer->base ); |
---|
1038 | delete outer->base->aggInst.aggregate->enumeration.name; |
---|
1039 | outer->base->aggInst.aggregate->enumeration.name = new string( "__anonymous_" + *outerDecl->name ); |
---|
1040 | outer->base->aggInst.aggregate->enumeration.anon = false; |
---|
1041 | // No qualifiers.reset() here. |
---|
1042 | } |
---|
1043 | } |
---|
1044 | |
---|
1045 | // This code handles a special issue with the attribute transparent_union. |
---|
1046 | // |
---|
1047 | // typedef union U { int i; } typedef_name __attribute__(( aligned(16) )) __attribute__(( transparent_union )) |
---|
1048 | // |
---|
1049 | // Here the attribute aligned goes with the typedef_name, so variables declared of this type are |
---|
1050 | // aligned. However, the attribute transparent_union must be moved from the typedef_name to |
---|
1051 | // alias union U. Currently, this is the only know attribute that must be moved from typedef to |
---|
1052 | // alias. |
---|
1053 | static void moveUnionAttribute( ast::Decl * decl, ast::UnionDecl * unionDecl ) { |
---|
1054 | if ( auto typedefDecl = dynamic_cast<ast::TypedefDecl *>( decl ) ) { |
---|
1055 | // Is the typedef alias a union aggregate? |
---|
1056 | if ( nullptr == unionDecl ) return; |
---|
1057 | |
---|
1058 | // If typedef is an alias for a union, then its alias type was hoisted above and remembered. |
---|
1059 | if ( auto unionInstType = typedefDecl->base.as<ast::UnionInstType>() ) { |
---|
1060 | auto instType = ast::mutate( unionInstType ); |
---|
1061 | // Remove all transparent_union attributes from typedef and move to alias union. |
---|
1062 | for ( auto attr = instType->attributes.begin() ; attr != instType->attributes.end() ; ) { |
---|
1063 | assert( *attr ); |
---|
1064 | if ( (*attr)->name == "transparent_union" || (*attr)->name == "__transparent_union__" ) { |
---|
1065 | unionDecl->attributes.emplace_back( attr->release() ); |
---|
1066 | attr = instType->attributes.erase( attr ); |
---|
1067 | } else { |
---|
1068 | attr++; |
---|
1069 | } |
---|
1070 | } |
---|
1071 | typedefDecl->base = instType; |
---|
1072 | } |
---|
1073 | } |
---|
1074 | } |
---|
1075 | |
---|
1076 | // Get the non-anonymous name of the instance type of the declaration, |
---|
1077 | // if one exists. |
---|
1078 | static const std::string * getInstTypeOfName( ast::Decl * decl ) { |
---|
1079 | if ( auto dwt = dynamic_cast<ast::DeclWithType *>( decl ) ) { |
---|
1080 | if ( auto aggr = dynamic_cast<ast::BaseInstType const *>( dwt->get_type() ) ) { |
---|
1081 | if ( aggr->name.find("anonymous") == std::string::npos ) { |
---|
1082 | return &aggr->name; |
---|
1083 | } |
---|
1084 | } |
---|
1085 | } |
---|
1086 | return nullptr; |
---|
1087 | } |
---|
1088 | |
---|
1089 | void buildList( DeclarationNode * firstNode, std::vector<ast::ptr<ast::Decl>> & outputList ) { |
---|
1090 | SemanticErrorException errors; |
---|
1091 | std::back_insert_iterator<std::vector<ast::ptr<ast::Decl>>> out( outputList ); |
---|
1092 | |
---|
1093 | for ( const DeclarationNode * cur = firstNode ; cur ; cur = strict_next( cur ) ) { |
---|
1094 | try { |
---|
1095 | bool extracted_named = false; |
---|
1096 | ast::UnionDecl * unionDecl = nullptr; |
---|
1097 | |
---|
1098 | if ( DeclarationNode * extr = cur->extractAggregate() ) { |
---|
1099 | assert( cur->type ); |
---|
1100 | nameTypedefedDecl( extr, cur ); |
---|
1101 | |
---|
1102 | if ( ast::Decl * decl = extr->build() ) { |
---|
1103 | // Remember the declaration if it is a union aggregate ? |
---|
1104 | unionDecl = dynamic_cast<ast::UnionDecl *>( decl ); |
---|
1105 | |
---|
1106 | *out++ = decl; |
---|
1107 | |
---|
1108 | // need to remember the cases where a declaration contains an anonymous aggregate definition |
---|
1109 | assert( extr->type ); |
---|
1110 | if ( extr->type->kind == TypeData::Aggregate ) { |
---|
1111 | // typedef struct { int A } B is the only case? |
---|
1112 | extracted_named = !extr->type->aggregate.anon; |
---|
1113 | } else if ( extr->type->kind == TypeData::Enum ) { |
---|
1114 | // typedef enum { A } B is the only case? |
---|
1115 | extracted_named = !extr->type->enumeration.anon; |
---|
1116 | } else { |
---|
1117 | extracted_named = true; |
---|
1118 | } |
---|
1119 | } // if |
---|
1120 | delete extr; |
---|
1121 | } // if |
---|
1122 | |
---|
1123 | if ( ast::Decl * decl = cur->build() ) { |
---|
1124 | moveUnionAttribute( decl, unionDecl ); |
---|
1125 | |
---|
1126 | if ( "" == decl->name && !cur->get_inLine() ) { |
---|
1127 | // Don't include anonymous declaration for named aggregates, |
---|
1128 | // but do include them for anonymous aggregates, e.g.: |
---|
1129 | // struct S { |
---|
1130 | // struct T { int x; }; // no anonymous member |
---|
1131 | // struct { int y; }; // anonymous member |
---|
1132 | // struct T; // anonymous member |
---|
1133 | // }; |
---|
1134 | if ( extracted_named ) { |
---|
1135 | continue; |
---|
1136 | } |
---|
1137 | |
---|
1138 | if ( auto name = getInstTypeOfName( decl ) ) { |
---|
1139 | // Temporary: warn about anonymous member declarations of named types, since |
---|
1140 | // this conflicts with the syntax for the forward declaration of an anonymous type. |
---|
1141 | SemanticWarning( cur->location, Warning::AggrForwardDecl, name->c_str() ); |
---|
1142 | } |
---|
1143 | } // if |
---|
1144 | *out++ = decl; |
---|
1145 | } // if |
---|
1146 | } catch ( SemanticErrorException & e ) { |
---|
1147 | errors.append( e ); |
---|
1148 | } // try |
---|
1149 | } // for |
---|
1150 | |
---|
1151 | if ( ! errors.isEmpty() ) { |
---|
1152 | throw errors; |
---|
1153 | } // if |
---|
1154 | } // buildList |
---|
1155 | |
---|
1156 | // currently only builds assertions, function parameters, and return values |
---|
1157 | void buildList( DeclarationNode * firstNode, std::vector<ast::ptr<ast::DeclWithType>> & outputList ) { |
---|
1158 | SemanticErrorException errors; |
---|
1159 | std::back_insert_iterator<std::vector<ast::ptr<ast::DeclWithType>>> out( outputList ); |
---|
1160 | |
---|
1161 | for ( const DeclarationNode * cur = firstNode; cur; cur = strict_next( cur ) ) { |
---|
1162 | try { |
---|
1163 | ast::Decl * decl = cur->build(); |
---|
1164 | assertf( decl, "buildList: build for ast::DeclWithType." ); |
---|
1165 | if ( ast::DeclWithType * dwt = dynamic_cast<ast::DeclWithType *>( decl ) ) { |
---|
1166 | dwt->location = cur->location; |
---|
1167 | *out++ = dwt; |
---|
1168 | } else if ( ast::StructDecl * agg = dynamic_cast<ast::StructDecl *>( decl ) ) { |
---|
1169 | // e.g., int foo(struct S) {} |
---|
1170 | auto inst = new ast::StructInstType( agg->name ); |
---|
1171 | auto obj = new ast::ObjectDecl( cur->location, "", inst ); |
---|
1172 | obj->linkage = linkage; |
---|
1173 | *out++ = obj; |
---|
1174 | delete agg; |
---|
1175 | } else if ( ast::UnionDecl * agg = dynamic_cast<ast::UnionDecl *>( decl ) ) { |
---|
1176 | // e.g., int foo(union U) {} |
---|
1177 | auto inst = new ast::UnionInstType( agg->name ); |
---|
1178 | auto obj = new ast::ObjectDecl( cur->location, |
---|
1179 | "", inst, nullptr, ast::Storage::Classes(), |
---|
1180 | linkage ); |
---|
1181 | *out++ = obj; |
---|
1182 | } else if ( ast::EnumDecl * agg = dynamic_cast<ast::EnumDecl *>( decl ) ) { |
---|
1183 | // e.g., int foo(enum E) {} |
---|
1184 | auto inst = new ast::EnumInstType( agg->name ); |
---|
1185 | auto obj = new ast::ObjectDecl( cur->location, |
---|
1186 | "", |
---|
1187 | inst, |
---|
1188 | nullptr, |
---|
1189 | ast::Storage::Classes(), |
---|
1190 | linkage |
---|
1191 | ); |
---|
1192 | *out++ = obj; |
---|
1193 | } else { |
---|
1194 | assertf( false, "buildList: Could not convert to ast::DeclWithType." ); |
---|
1195 | } // if |
---|
1196 | } catch ( SemanticErrorException & e ) { |
---|
1197 | errors.append( e ); |
---|
1198 | } // try |
---|
1199 | } // for |
---|
1200 | |
---|
1201 | if ( ! errors.isEmpty() ) { |
---|
1202 | throw errors; |
---|
1203 | } // if |
---|
1204 | } // buildList |
---|
1205 | |
---|
1206 | void buildTypeList( const DeclarationNode * firstNode, |
---|
1207 | std::vector<ast::ptr<ast::Type>> & outputList ) { |
---|
1208 | SemanticErrorException errors; |
---|
1209 | std::back_insert_iterator<std::vector<ast::ptr<ast::Type>>> out( outputList ); |
---|
1210 | |
---|
1211 | for ( const DeclarationNode * cur = firstNode ; cur ; cur = strict_next( cur ) ) { |
---|
1212 | try { |
---|
1213 | * out++ = cur->buildType(); |
---|
1214 | } catch ( SemanticErrorException & e ) { |
---|
1215 | errors.append( e ); |
---|
1216 | } // try |
---|
1217 | } // for |
---|
1218 | |
---|
1219 | if ( ! errors.isEmpty() ) { |
---|
1220 | throw errors; |
---|
1221 | } // if |
---|
1222 | } // buildTypeList |
---|
1223 | |
---|
1224 | ast::Decl * DeclarationNode::build() const { |
---|
1225 | if ( ! error.empty() ) SemanticError( this, error + " in declaration of " ); |
---|
1226 | |
---|
1227 | if ( asmStmt ) { |
---|
1228 | auto stmt = strict_dynamic_cast<ast::AsmStmt *>( asmStmt->build() ); |
---|
1229 | return new ast::AsmDecl( stmt->location, stmt ); |
---|
1230 | } // if |
---|
1231 | if ( directiveStmt ) { |
---|
1232 | auto stmt = strict_dynamic_cast<ast::DirectiveStmt *>( directiveStmt->build() ); |
---|
1233 | return new ast::DirectiveDecl( stmt->location, stmt ); |
---|
1234 | } // if |
---|
1235 | |
---|
1236 | if ( variable.tyClass != ast::TypeDecl::NUMBER_OF_KINDS ) { |
---|
1237 | // otype is internally converted to dtype + otype parameters |
---|
1238 | static const ast::TypeDecl::Kind kindMap[] = { ast::TypeDecl::Dtype, ast::TypeDecl::Dtype, ast::TypeDecl::Dtype, ast::TypeDecl::Ftype, ast::TypeDecl::Ttype, ast::TypeDecl::Dimension }; |
---|
1239 | static_assert( sizeof(kindMap) / sizeof(kindMap[0]) == ast::TypeDecl::NUMBER_OF_KINDS, "DeclarationNode::build: kindMap is out of sync." ); |
---|
1240 | assertf( variable.tyClass < sizeof(kindMap)/sizeof(kindMap[0]), "Variable's tyClass is out of bounds." ); |
---|
1241 | ast::TypeDecl * ret = new ast::TypeDecl( location, |
---|
1242 | *name, |
---|
1243 | ast::Storage::Classes(), |
---|
1244 | (ast::Type *)nullptr, |
---|
1245 | kindMap[ variable.tyClass ], |
---|
1246 | variable.tyClass == ast::TypeDecl::Otype || variable.tyClass == ast::TypeDecl::DStype, |
---|
1247 | variable.initializer ? variable.initializer->buildType() : nullptr |
---|
1248 | ); |
---|
1249 | buildList( variable.assertions, ret->assertions ); |
---|
1250 | return ret; |
---|
1251 | } // if |
---|
1252 | |
---|
1253 | if ( type ) { |
---|
1254 | // Function specifiers can only appear on a function definition/declaration. |
---|
1255 | // |
---|
1256 | // inline _Noreturn int f(); // allowed |
---|
1257 | // inline _Noreturn int g( int i ); // allowed |
---|
1258 | // inline _Noreturn int i; // disallowed |
---|
1259 | if ( type->kind != TypeData::Function && funcSpecs.any() ) { |
---|
1260 | SemanticError( this, "invalid function specifier for " ); |
---|
1261 | } // if |
---|
1262 | // Forall qualifier can only appear on a function/aggregate definition/declaration. |
---|
1263 | // |
---|
1264 | // forall int f(); // allowed |
---|
1265 | // forall int g( int i ); // allowed |
---|
1266 | // forall int i; // disallowed |
---|
1267 | if ( type->kind != TypeData::Function && type->forall ) { |
---|
1268 | SemanticError( this, "invalid type qualifier for " ); |
---|
1269 | } // if |
---|
1270 | bool isDelete = initializer && initializer->get_isDelete(); |
---|
1271 | ast::Decl * decl = buildDecl( |
---|
1272 | type, |
---|
1273 | name ? *name : string( "" ), |
---|
1274 | storageClasses, |
---|
1275 | maybeBuild( bitfieldWidth ), |
---|
1276 | funcSpecs, |
---|
1277 | linkage, |
---|
1278 | asmName, |
---|
1279 | isDelete ? nullptr : maybeBuild( initializer ), |
---|
1280 | copy( attributes ) |
---|
1281 | )->set_extension( extension ); |
---|
1282 | if ( isDelete ) { |
---|
1283 | auto dwt = strict_dynamic_cast<ast::DeclWithType *>( decl ); |
---|
1284 | dwt->isDeleted = true; |
---|
1285 | } |
---|
1286 | return decl; |
---|
1287 | } // if |
---|
1288 | |
---|
1289 | if ( assert.condition ) { |
---|
1290 | auto cond = maybeBuild( assert.condition ); |
---|
1291 | auto msg = strict_dynamic_cast<ast::ConstantExpr *>( maybeCopy( assert.message ) ); |
---|
1292 | return new ast::StaticAssertDecl( location, cond, msg ); |
---|
1293 | } |
---|
1294 | |
---|
1295 | // SUE's cannot have function specifiers, either |
---|
1296 | // |
---|
1297 | // inline _Noreturn struct S { ... }; // disallowed |
---|
1298 | // inline _Noreturn enum E { ... }; // disallowed |
---|
1299 | if ( funcSpecs.any() ) { |
---|
1300 | SemanticError( this, "invalid function specifier for " ); |
---|
1301 | } // if |
---|
1302 | if ( enumInLine ) { |
---|
1303 | return new ast::InlineMemberDecl( location, |
---|
1304 | *name, (ast::Type*)nullptr, storageClasses, linkage ); |
---|
1305 | } // if |
---|
1306 | assertf( name, "ObjectDecl must a have name\n" ); |
---|
1307 | auto ret = new ast::ObjectDecl( location, |
---|
1308 | *name, |
---|
1309 | (ast::Type*)nullptr, |
---|
1310 | maybeBuild( initializer ), |
---|
1311 | storageClasses, |
---|
1312 | linkage, |
---|
1313 | maybeBuild( bitfieldWidth ) |
---|
1314 | ); |
---|
1315 | ret->asmName = asmName; |
---|
1316 | ret->extension = extension; |
---|
1317 | return ret; |
---|
1318 | } |
---|
1319 | |
---|
1320 | ast::Type * DeclarationNode::buildType() const { |
---|
1321 | assert( type ); |
---|
1322 | |
---|
1323 | switch ( type->kind ) { |
---|
1324 | case TypeData::Enum: |
---|
1325 | case TypeData::Aggregate: { |
---|
1326 | ast::BaseInstType * ret = |
---|
1327 | buildComAggInst( type, copy( attributes ), linkage ); |
---|
1328 | buildList( type->aggregate.actuals, ret->params ); |
---|
1329 | return ret; |
---|
1330 | } |
---|
1331 | case TypeData::Symbolic: { |
---|
1332 | ast::TypeInstType * ret = new ast::TypeInstType( |
---|
1333 | *type->symbolic.name, |
---|
1334 | // This is just a default, the true value is not known yet. |
---|
1335 | ast::TypeDecl::Dtype, |
---|
1336 | buildQualifiers( type ), |
---|
1337 | copy( attributes ) ); |
---|
1338 | buildList( type->symbolic.actuals, ret->params ); |
---|
1339 | return ret; |
---|
1340 | } |
---|
1341 | default: |
---|
1342 | ast::Type * simpletypes = typebuild( type ); |
---|
1343 | // copy because member is const |
---|
1344 | simpletypes->attributes = attributes; |
---|
1345 | return simpletypes; |
---|
1346 | } // switch |
---|
1347 | } |
---|
1348 | |
---|
1349 | // Local Variables: // |
---|
1350 | // tab-width: 4 // |
---|
1351 | // mode: c++ // |
---|
1352 | // compile-command: "make install" // |
---|
1353 | // End: // |
---|