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 | // Expression.cc -- |
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8 | // |
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9 | // Author : Richard C. Bilson |
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10 | // Created On : Mon May 18 07:44:20 2015 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Tue Jul 25 14:15:47 2017 |
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13 | // Update Count : 54 |
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14 | // |
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15 | |
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16 | #include "SynTree/Expression.h" |
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17 | |
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18 | #include <cassert> // for assert, assertf |
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19 | #include <iostream> // for ostream, operator<<, basic_ostream |
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20 | #include <list> // for list, _List_iterator, list<>::co... |
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21 | |
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22 | #include "Common/utility.h" // for maybeClone, cloneAll, deleteAll |
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23 | #include "Declaration.h" // for ObjectDecl, DeclarationWithType |
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24 | #include "Expression.h" // for Expression, ImplicitCopyCtorExpr |
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25 | #include "InitTweak/InitTweak.h" // for getCallArg, getPointerBase |
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26 | #include "Initializer.h" // for Designation, Initializer |
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27 | #include "Statement.h" // for CompoundStmt, ExprStmt, Statement |
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28 | #include "SynTree/BaseSyntaxNode.h" // for BaseSyntaxNode |
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29 | #include "SynTree/Constant.h" // for Constant |
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30 | #include "Type.h" // for Type, BasicType, Type::Qualifiers |
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31 | #include "TypeSubstitution.h" // for TypeSubstitution |
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32 | |
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33 | #include "GenPoly/Lvalue.h" |
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34 | |
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35 | void printInferParams( const InferredParams & inferParams, std::ostream &os, Indenter indent, int level ) { |
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36 | if ( ! inferParams.empty() ) { |
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37 | os << indent << "with inferred parameters " << level << ":" << std::endl; |
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38 | for ( InferredParams::const_iterator i = inferParams.begin(); i != inferParams.end(); ++i ) { |
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39 | os << indent+1; |
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40 | Declaration::declFromId( i->second.decl )->printShort( os, indent+1 ); |
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41 | os << std::endl; |
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42 | printInferParams( *i->second.inferParams, os, indent+1, level+1 ); |
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43 | } // for |
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44 | } // if |
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45 | } |
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46 | |
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47 | Expression::Expression() : result( 0 ), env( 0 ) {} |
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48 | |
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49 | Expression::Expression( const Expression &other ) : BaseSyntaxNode( other ), result( maybeClone( other.result ) ), env( maybeClone( other.env ) ), extension( other.extension ), inferParams( other.inferParams ) { |
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50 | } |
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51 | |
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52 | void Expression::spliceInferParams( Expression * other ) { |
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53 | if ( ! other ) return; |
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54 | for ( auto p : other->inferParams ) { |
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55 | inferParams[p.first] = std::move( p.second ); |
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56 | } |
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57 | } |
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58 | |
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59 | Expression::~Expression() { |
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60 | delete env; |
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61 | } |
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62 | |
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63 | void Expression::print( std::ostream &os, Indenter indent ) const { |
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64 | printInferParams( inferParams, os, indent+1, 0 ); |
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65 | |
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66 | if ( env ) { |
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67 | os << std::endl << indent << "... with environment:" << std::endl; |
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68 | env->print( os, indent+1 ); |
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69 | } // if |
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70 | |
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71 | if ( extension ) { |
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72 | os << std::endl << indent << "... with extension:"; |
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73 | } // if |
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74 | } |
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75 | |
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76 | ConstantExpr::ConstantExpr( Constant _c ) : Expression(), constant( _c ) { |
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77 | set_result( constant.get_type()->clone() ); |
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78 | } |
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79 | |
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80 | ConstantExpr::ConstantExpr( const ConstantExpr &other) : Expression( other ), constant( other.constant ) { |
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81 | } |
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82 | |
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83 | void ConstantExpr::print( std::ostream &os, Indenter indent ) const { |
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84 | os << "constant expression " ; |
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85 | constant.print( os ); |
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86 | Expression::print( os, indent ); |
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87 | } |
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88 | |
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89 | long long int ConstantExpr::intValue() const { |
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90 | if ( BasicType * basicType = dynamic_cast< BasicType * >( result ) ) { |
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91 | if ( basicType->isInteger() ) { |
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92 | return get_constant()->get_ival(); |
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93 | } |
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94 | } else if ( dynamic_cast< OneType * >( result ) ) { |
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95 | return 1; |
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96 | } else if ( dynamic_cast< ZeroType * >( result ) ) { |
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97 | return 0; |
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98 | } |
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99 | SemanticError( this, "Constant expression of non-integral type " ); |
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100 | } |
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101 | |
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102 | VariableExpr::VariableExpr( DeclarationWithType *_var ) : Expression(), var( _var ) { |
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103 | assert( var ); |
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104 | assert( var->get_type() ); |
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105 | Type * type = var->get_type()->clone(); |
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106 | type->set_lvalue( true ); |
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107 | |
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108 | // xxx - doesn't quite work yet - get different alternatives with the same cost |
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109 | |
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110 | // // enumerators are not lvalues |
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111 | // if ( EnumInstType * inst = dynamic_cast< EnumInstType * >( var->get_type() ) ) { |
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112 | // assert( inst->baseEnum ); |
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113 | // EnumDecl * decl = inst->baseEnum; |
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114 | // long long int value; |
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115 | // if ( decl->valueOf( var, value ) ) { |
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116 | // type->set_lvalue( false ); |
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117 | // } |
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118 | // } |
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119 | |
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120 | set_result( type ); |
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121 | } |
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122 | |
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123 | VariableExpr::VariableExpr( const VariableExpr &other ) : Expression( other ), var( other.var ) { |
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124 | } |
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125 | |
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126 | VariableExpr * VariableExpr::functionPointer( FunctionDecl * func ) { |
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127 | VariableExpr * funcExpr = new VariableExpr( func ); |
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128 | funcExpr->set_result( new PointerType( Type::Qualifiers(), funcExpr->get_result() ) ); |
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129 | return funcExpr; |
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130 | } |
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131 | |
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132 | void VariableExpr::print( std::ostream &os, Indenter indent ) const { |
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133 | os << "Variable Expression: "; |
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134 | var->printShort(os, indent); |
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135 | Expression::print( os, indent ); |
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136 | } |
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137 | |
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138 | SizeofExpr::SizeofExpr( Expression *expr_ ) : |
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139 | Expression(), expr(expr_), type(0), isType(false) { |
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140 | set_result( new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ) ); |
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141 | } |
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142 | |
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143 | SizeofExpr::SizeofExpr( Type *type_ ) : |
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144 | Expression(), expr(0), type(type_), isType(true) { |
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145 | set_result( new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ) ); |
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146 | } |
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147 | |
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148 | SizeofExpr::SizeofExpr( const SizeofExpr &other ) : |
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149 | Expression( other ), expr( maybeClone( other.expr ) ), type( maybeClone( other.type ) ), isType( other.isType ) { |
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150 | } |
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151 | |
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152 | void SizeofExpr::print( std::ostream &os, Indenter indent) const { |
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153 | os << "Sizeof Expression on: "; |
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154 | if (isType) type->print(os, indent+1); |
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155 | else expr->print(os, indent+1); |
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156 | Expression::print( os, indent ); |
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157 | } |
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158 | |
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159 | AlignofExpr::AlignofExpr( Expression *expr_ ) : |
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160 | Expression(), expr(expr_), type(0), isType(false) { |
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161 | set_result( new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ) ); |
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162 | } |
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163 | |
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164 | AlignofExpr::AlignofExpr( Type *type_ ) : |
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165 | Expression(), expr(0), type(type_), isType(true) { |
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166 | set_result( new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ) ); |
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167 | } |
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168 | |
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169 | AlignofExpr::AlignofExpr( const AlignofExpr &other ) : |
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170 | Expression( other ), expr( maybeClone( other.expr ) ), type( maybeClone( other.type ) ), isType( other.isType ) { |
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171 | } |
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172 | |
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173 | void AlignofExpr::print( std::ostream &os, Indenter indent) const { |
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174 | os << "Alignof Expression on: "; |
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175 | if (isType) type->print(os, indent+1); |
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176 | else expr->print(os, indent+1); |
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177 | Expression::print( os, indent ); |
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178 | } |
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179 | |
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180 | UntypedOffsetofExpr::UntypedOffsetofExpr( Type *type, const std::string &member ) : |
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181 | Expression(), type(type), member(member) { |
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182 | assert( type ); |
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183 | set_result( new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ) ); |
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184 | } |
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185 | |
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186 | UntypedOffsetofExpr::UntypedOffsetofExpr( const UntypedOffsetofExpr &other ) : |
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187 | Expression( other ), type( maybeClone( other.type ) ), member( other.member ) {} |
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188 | |
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189 | void UntypedOffsetofExpr::print( std::ostream &os, Indenter indent) const { |
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190 | os << "Untyped Offsetof Expression on member " << member << " of "; |
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191 | type->print(os, indent+1); |
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192 | Expression::print( os, indent ); |
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193 | } |
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194 | |
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195 | OffsetofExpr::OffsetofExpr( Type *type, DeclarationWithType *member ) : |
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196 | Expression(), type(type), member(member) { |
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197 | assert( member ); |
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198 | assert( type ); |
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199 | set_result( new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ) ); |
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200 | } |
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201 | |
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202 | OffsetofExpr::OffsetofExpr( const OffsetofExpr &other ) : |
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203 | Expression( other ), type( maybeClone( other.type ) ), member( other.member ) {} |
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204 | |
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205 | void OffsetofExpr::print( std::ostream &os, Indenter indent) const { |
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206 | os << "Offsetof Expression on member " << member->name << " of "; |
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207 | type->print(os, indent+1); |
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208 | Expression::print( os, indent ); |
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209 | } |
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210 | |
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211 | OffsetPackExpr::OffsetPackExpr( StructInstType *type ) : Expression(), type( type ) { |
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212 | assert( type ); |
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213 | set_result( new ArrayType( Type::Qualifiers(), new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0, false, false ) ); |
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214 | } |
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215 | |
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216 | OffsetPackExpr::OffsetPackExpr( const OffsetPackExpr &other ) : Expression( other ), type( maybeClone( other.type ) ) {} |
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217 | |
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218 | void OffsetPackExpr::print( std::ostream &os, Indenter indent ) const { |
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219 | os << "Offset pack expression on "; |
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220 | type->print(os, indent+1); |
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221 | Expression::print( os, indent ); |
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222 | } |
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223 | |
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224 | AttrExpr::AttrExpr( Expression *attr, Expression *expr_ ) : |
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225 | Expression(), attr( attr ), expr(expr_), type(0), isType(false) { |
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226 | } |
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227 | |
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228 | AttrExpr::AttrExpr( Expression *attr, Type *type_ ) : |
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229 | Expression(), attr( attr ), expr(0), type(type_), isType(true) { |
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230 | } |
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231 | |
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232 | AttrExpr::AttrExpr( const AttrExpr &other ) : |
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233 | Expression( other ), attr( maybeClone( other.attr ) ), expr( maybeClone( other.expr ) ), type( maybeClone( other.type ) ), isType( other.isType ) { |
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234 | } |
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235 | |
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236 | void AttrExpr::print( std::ostream &os, Indenter indent) const { |
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237 | os << "Attr "; |
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238 | attr->print( os, indent+1); |
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239 | if ( isType || expr ) { |
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240 | os << "applied to: "; |
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241 | if (isType) type->print(os, indent+1); |
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242 | else expr->print(os, indent+1); |
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243 | } // if |
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244 | Expression::print( os, indent ); |
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245 | } |
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246 | |
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247 | CastExpr::CastExpr( Expression *arg, Type *toType, bool isGenerated ) : Expression(), arg(arg), isGenerated( isGenerated ) { |
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248 | set_result(toType); |
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249 | } |
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250 | |
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251 | CastExpr::CastExpr( Expression *arg, bool isGenerated ) : Expression(), arg(arg), isGenerated( isGenerated ) { |
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252 | set_result( new VoidType( Type::Qualifiers() ) ); |
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253 | } |
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254 | |
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255 | CastExpr::CastExpr( const CastExpr &other ) : Expression( other ), arg( maybeClone( other.arg ) ), isGenerated( other.isGenerated ) { |
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256 | } |
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257 | |
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258 | void CastExpr::print( std::ostream &os, Indenter indent ) const { |
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259 | os << "Cast of:" << std::endl << indent+1; |
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260 | arg->print(os, indent+1); |
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261 | os << std::endl << indent << "... to:"; |
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262 | if ( result->isVoid() ) { |
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263 | os << " nothing"; |
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264 | } else { |
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265 | os << std::endl << indent+1; |
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266 | result->print( os, indent+1 ); |
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267 | } // if |
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268 | Expression::print( os, indent ); |
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269 | } |
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270 | |
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271 | KeywordCastExpr::KeywordCastExpr( Expression *arg, Target target ) : Expression(), arg(arg), target( target ) { |
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272 | } |
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273 | |
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274 | KeywordCastExpr::KeywordCastExpr( const KeywordCastExpr &other ) : Expression( other ), arg( maybeClone( other.arg ) ), target( other.target ) { |
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275 | } |
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276 | |
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277 | const std::string & KeywordCastExpr::targetString() const { |
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278 | static const std::string targetStrs[] = { |
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279 | "coroutine", "thread", "monitor" |
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280 | }; |
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281 | static_assert( |
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282 | (sizeof(targetStrs) / sizeof(targetStrs[0])) == ((unsigned long)NUMBER_OF_TARGETS), |
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283 | "Each KeywordCastExpr::Target should have a corresponding string representation" |
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284 | ); |
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285 | return targetStrs[(unsigned long)target]; |
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286 | } |
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287 | |
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288 | void KeywordCastExpr::print( std::ostream &os, Indenter indent ) const { |
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289 | os << "Keyword Cast of:" << std::endl << indent+1; |
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290 | arg->print(os, indent+1); |
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291 | os << std::endl << indent << "... to: "; |
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292 | os << targetString(); |
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293 | Expression::print( os, indent ); |
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294 | } |
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295 | |
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296 | VirtualCastExpr::VirtualCastExpr( Expression *arg_, Type *toType ) : Expression(), arg(arg_) { |
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297 | set_result(toType); |
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298 | } |
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299 | |
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300 | VirtualCastExpr::VirtualCastExpr( const VirtualCastExpr &other ) : Expression( other ), arg( maybeClone( other.arg ) ) { |
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301 | } |
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302 | |
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303 | void VirtualCastExpr::print( std::ostream &os, Indenter indent ) const { |
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304 | os << "Virtual Cast of:" << std::endl << indent+1; |
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305 | arg->print(os, indent+1); |
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306 | os << std::endl << indent << "... to:"; |
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307 | if ( ! result ) { |
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308 | os << " unknown"; |
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309 | } else { |
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310 | os << std::endl << indent+1; |
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311 | result->print( os, indent+1 ); |
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312 | } // if |
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313 | Expression::print( os, indent ); |
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314 | } |
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315 | |
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316 | UntypedMemberExpr::UntypedMemberExpr( Expression * member, Expression *aggregate ) : |
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317 | Expression(), member(member), aggregate(aggregate) { |
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318 | assert( aggregate ); |
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319 | } |
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320 | |
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321 | UntypedMemberExpr::UntypedMemberExpr( const UntypedMemberExpr &other ) : |
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322 | Expression( other ), member( maybeClone( other.member ) ), aggregate( maybeClone( other.aggregate ) ) { |
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323 | } |
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324 | |
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325 | void UntypedMemberExpr::print( std::ostream &os, Indenter indent ) const { |
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326 | os << "Untyped Member Expression, with field: " << std::endl << indent+1; |
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327 | member->print(os, indent+1 ); |
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328 | os << indent << "... from aggregate: " << std::endl << indent+1; |
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329 | aggregate->print(os, indent+1); |
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330 | Expression::print( os, indent ); |
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331 | } |
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332 | |
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333 | MemberExpr::MemberExpr( DeclarationWithType *member, Expression *aggregate ) : |
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334 | Expression(), member(member), aggregate(aggregate) { |
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335 | assert( member ); |
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336 | assert( aggregate ); |
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337 | assert( aggregate->result ); |
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338 | |
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339 | TypeSubstitution sub = aggregate->result->genericSubstitution(); |
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340 | Type * res = member->get_type()->clone(); |
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341 | sub.apply( res ); |
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342 | result = res; |
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343 | result->set_lvalue( true ); |
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344 | result->get_qualifiers() |= aggregate->result->get_qualifiers(); |
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345 | } |
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346 | |
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347 | MemberExpr::MemberExpr( const MemberExpr &other ) : |
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348 | Expression( other ), member( other.member ), aggregate( maybeClone( other.aggregate ) ) { |
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349 | } |
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350 | |
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351 | void MemberExpr::print( std::ostream &os, Indenter indent ) const { |
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352 | os << "Member Expression, with field: " << std::endl; |
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353 | os << indent+1; |
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354 | member->print( os, indent+1 ); |
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355 | os << std::endl << indent << "... from aggregate: " << std::endl << indent+1; |
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356 | aggregate->print(os, indent + 1); |
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357 | Expression::print( os, indent ); |
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358 | } |
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359 | |
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360 | UntypedExpr::UntypedExpr( Expression *function, const std::list<Expression *> &args ) : |
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361 | Expression(), function(function), args(args) {} |
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362 | |
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363 | UntypedExpr::UntypedExpr( const UntypedExpr &other ) : |
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364 | Expression( other ), function( maybeClone( other.function ) ) { |
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365 | cloneAll( other.args, args ); |
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366 | } |
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367 | |
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368 | UntypedExpr * UntypedExpr::createDeref( Expression * expr ) { |
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369 | UntypedExpr * ret = new UntypedExpr( new NameExpr("*?"), std::list< Expression * >{ expr } ); |
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370 | if ( Type * type = expr->get_result() ) { |
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371 | Type * base = InitTweak::getPointerBase( type ); |
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372 | assertf( base, "expected pointer type in dereference (type was %s)", toString( type ).c_str() ); |
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373 | ret->set_result( base->clone() ); |
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374 | if ( GenPoly::referencesPermissable() ) { |
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375 | // if references are still allowed in the AST, dereference returns a reference |
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376 | ret->set_result( new ReferenceType( Type::Qualifiers(), ret->get_result() ) ); |
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377 | } else { |
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378 | // references have been removed, in which case dereference returns an lvalue of the base type. |
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379 | ret->result->set_lvalue( true ); |
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380 | } |
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381 | } |
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382 | return ret; |
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383 | } |
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384 | |
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385 | UntypedExpr * UntypedExpr::createAssign( Expression * arg1, Expression * arg2 ) { |
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386 | assert( arg1 && arg2 ); |
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387 | UntypedExpr * ret = new UntypedExpr( new NameExpr( "?=?" ), std::list< Expression * >{ arg1, arg2 } ); |
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388 | if ( arg1->get_result() && arg2->get_result() ) { |
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389 | // if both expressions are typed, assumes that this assignment is a C bitwise assignment, |
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390 | // so the result is the type of the RHS |
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391 | ret->set_result( arg2->get_result()->clone() ); |
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392 | } |
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393 | return ret; |
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394 | } |
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395 | |
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396 | |
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397 | void UntypedExpr::print( std::ostream &os, Indenter indent ) const { |
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398 | os << "Applying untyped: " << std::endl; |
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399 | os << indent+1; |
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400 | function->print(os, indent+1); |
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401 | os << std::endl << indent << "...to: " << std::endl; |
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402 | printAll(args, os, indent+1); |
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403 | Expression::print( os, indent ); |
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404 | } |
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405 | |
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406 | NameExpr::NameExpr( std::string name ) : Expression(), name(name) { |
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407 | assertf(name != "0", "Zero is not a valid name"); |
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408 | assertf(name != "1", "One is not a valid name"); |
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409 | } |
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410 | |
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411 | NameExpr::NameExpr( const NameExpr &other ) : Expression( other ), name( other.name ) { |
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412 | } |
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413 | |
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414 | void NameExpr::print( std::ostream &os, Indenter indent ) const { |
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415 | os << "Name: " << get_name(); |
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416 | Expression::print( os, indent ); |
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417 | } |
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418 | |
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419 | LogicalExpr::LogicalExpr( Expression *arg1_, Expression *arg2_, bool andp ) : |
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420 | Expression(), arg1(arg1_), arg2(arg2_), isAnd(andp) { |
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421 | set_result( new BasicType( Type::Qualifiers(), BasicType::SignedInt ) ); |
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422 | } |
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423 | |
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424 | LogicalExpr::LogicalExpr( const LogicalExpr &other ) : |
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425 | Expression( other ), arg1( maybeClone( other.arg1 ) ), arg2( maybeClone( other.arg2 ) ), isAnd( other.isAnd ) { |
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426 | } |
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427 | |
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428 | void LogicalExpr::print( std::ostream &os, Indenter indent )const { |
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429 | os << "Short-circuited operation (" << (isAnd ? "and" : "or") << ") on: "; |
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430 | arg1->print(os); |
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431 | os << " and "; |
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432 | arg2->print(os); |
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433 | Expression::print( os, indent ); |
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434 | } |
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435 | |
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436 | ConditionalExpr::ConditionalExpr( Expression * arg1, Expression * arg2, Expression * arg3 ) : |
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437 | Expression(), arg1(arg1), arg2(arg2), arg3(arg3) {} |
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438 | |
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439 | ConditionalExpr::ConditionalExpr( const ConditionalExpr &other ) : |
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440 | Expression( other ), arg1( maybeClone( other.arg1 ) ), arg2( maybeClone( other.arg2 ) ), arg3( maybeClone( other.arg3 ) ) { |
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441 | } |
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442 | |
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443 | void ConditionalExpr::print( std::ostream &os, Indenter indent ) const { |
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444 | os << "Conditional expression on: " << std::endl << indent+1; |
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445 | arg1->print( os, indent+1 ); |
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446 | os << indent << "First alternative:" << std::endl << indent+1; |
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447 | arg2->print( os, indent+1 ); |
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448 | os << indent << "Second alternative:" << std::endl << indent+1; |
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449 | arg3->print( os, indent+1 ); |
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450 | Expression::print( os, indent ); |
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451 | } |
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452 | |
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453 | AsmExpr::AsmExpr( const AsmExpr & other ) : Expression( other ), inout( maybeClone( other.inout ) ), constraint( maybeClone( other.constraint ) ), operand( maybeClone( other.operand ) ) {} |
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454 | |
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455 | |
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456 | void AsmExpr::print( std::ostream &os, Indenter indent ) const { |
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457 | os << "Asm Expression: " << std::endl; |
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458 | if ( inout ) inout->print( os, indent+1 ); |
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459 | if ( constraint ) constraint->print( os, indent+1 ); |
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460 | if ( operand ) operand->print( os, indent+1 ); |
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461 | } |
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462 | |
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463 | |
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464 | ImplicitCopyCtorExpr::ImplicitCopyCtorExpr( ApplicationExpr * callExpr ) : callExpr( callExpr ) { |
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465 | assert( callExpr ); |
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466 | assert( callExpr->result ); |
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467 | set_result( callExpr->get_result()->clone() ); |
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468 | } |
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469 | |
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470 | ImplicitCopyCtorExpr::ImplicitCopyCtorExpr( const ImplicitCopyCtorExpr & other ) : Expression( other ), callExpr( maybeClone( other.callExpr ) ) { |
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471 | cloneAll( other.tempDecls, tempDecls ); |
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472 | cloneAll( other.returnDecls, returnDecls ); |
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473 | cloneAll( other.dtors, dtors ); |
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474 | } |
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475 | |
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476 | ImplicitCopyCtorExpr::~ImplicitCopyCtorExpr() { |
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477 | set_env( nullptr ); // ImplicitCopyCtorExpr does not take ownership of an environment |
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478 | } |
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479 | |
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480 | void ImplicitCopyCtorExpr::print( std::ostream &os, Indenter indent ) const { |
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481 | os << "Implicit Copy Constructor Expression: " << std::endl << indent+1; |
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482 | callExpr->print( os, indent+1 ); |
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483 | os << std::endl << indent << "... with temporaries:" << std::endl; |
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484 | printAll( tempDecls, os, indent+1 ); |
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485 | os << std::endl << indent << "... with return temporaries:" << std::endl; |
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486 | printAll( returnDecls, os, indent+1 ); |
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487 | Expression::print( os, indent ); |
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488 | } |
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489 | |
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490 | |
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491 | ConstructorExpr::ConstructorExpr( Expression * callExpr ) : callExpr( callExpr ) { |
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492 | // allow resolver to type a constructor used as an expression as if it has the same type as its first argument |
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493 | assert( callExpr ); |
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494 | Expression * arg = InitTweak::getCallArg( callExpr, 0 ); |
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495 | assert( arg ); |
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496 | set_result( maybeClone( arg->result ) ); |
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497 | } |
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498 | |
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499 | ConstructorExpr::ConstructorExpr( const ConstructorExpr & other ) : Expression( other ), callExpr( maybeClone( other.callExpr ) ) { |
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500 | } |
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501 | |
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502 | void ConstructorExpr::print( std::ostream &os, Indenter indent ) const { |
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503 | os << "Constructor Expression: " << std::endl << indent+1; |
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504 | callExpr->print( os, indent + 2 ); |
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505 | Expression::print( os, indent ); |
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506 | } |
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507 | |
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508 | |
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509 | CompoundLiteralExpr::CompoundLiteralExpr( Type * type, Initializer * initializer ) : initializer( initializer ) { |
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510 | assert( type && initializer ); |
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511 | type->set_lvalue( true ); |
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512 | set_result( type ); |
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513 | } |
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514 | |
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515 | CompoundLiteralExpr::CompoundLiteralExpr( const CompoundLiteralExpr &other ) : Expression( other ), initializer( other.initializer->clone() ) {} |
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516 | |
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517 | void CompoundLiteralExpr::print( std::ostream &os, Indenter indent ) const { |
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518 | os << "Compound Literal Expression: " << std::endl << indent+1; |
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519 | result->print( os, indent+1 ); |
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520 | os << indent+1; |
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521 | initializer->print( os, indent+1 ); |
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522 | Expression::print( os, indent ); |
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523 | } |
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524 | |
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525 | RangeExpr::RangeExpr( Expression *low, Expression *high ) : low( low ), high( high ) {} |
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526 | RangeExpr::RangeExpr( const RangeExpr &other ) : Expression( other ), low( other.low->clone() ), high( other.high->clone() ) {} |
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527 | void RangeExpr::print( std::ostream &os, Indenter indent ) const { |
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528 | os << "Range Expression: "; |
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529 | low->print( os, indent ); |
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530 | os << " ... "; |
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531 | high->print( os, indent ); |
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532 | Expression::print( os, indent ); |
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533 | } |
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534 | |
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535 | StmtExpr::StmtExpr( CompoundStmt *statements ) : statements( statements ) { |
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536 | computeResult(); |
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537 | } |
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538 | StmtExpr::StmtExpr( const StmtExpr &other ) : Expression( other ), statements( other.statements->clone() ) { |
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539 | cloneAll( other.returnDecls, returnDecls ); |
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540 | cloneAll( other.dtors, dtors ); |
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541 | } |
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542 | void StmtExpr::computeResult() { |
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543 | assert( statements ); |
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544 | std::list< Statement * > & body = statements->kids; |
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545 | result = nullptr; |
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546 | if ( ! returnDecls.empty() ) { |
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547 | // prioritize return decl for result type, since if a return decl exists, then |
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548 | // the StmtExpr is currently in an intermediate state where the body will always |
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549 | // give a void result type. |
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550 | result = returnDecls.front()->get_type()->clone(); |
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551 | } else if ( ! body.empty() ) { |
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552 | if ( ExprStmt * exprStmt = dynamic_cast< ExprStmt * >( body.back() ) ) { |
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553 | result = maybeClone( exprStmt->expr->result ); |
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554 | } |
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555 | } |
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556 | // ensure that StmtExpr has a result type |
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557 | if ( ! result ) { |
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558 | result = new VoidType( Type::Qualifiers() ); |
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559 | } |
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560 | } |
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561 | void StmtExpr::print( std::ostream &os, Indenter indent ) const { |
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562 | os << "Statement Expression: " << std::endl << indent+1; |
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563 | statements->print( os, indent+1 ); |
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564 | if ( ! returnDecls.empty() ) { |
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565 | os << indent+1 << "... with returnDecls: "; |
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566 | printAll( returnDecls, os, indent+1 ); |
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567 | } |
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568 | if ( ! dtors.empty() ) { |
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569 | os << indent+1 << "... with dtors: "; |
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570 | printAll( dtors, os, indent+1 ); |
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571 | } |
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572 | Expression::print( os, indent ); |
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573 | } |
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574 | |
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575 | |
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576 | long long UniqueExpr::count = 0; |
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577 | UniqueExpr::UniqueExpr( Expression *expr, long long idVal ) : expr( expr ), object( nullptr ), var( nullptr ), id( idVal ) { |
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578 | assert( expr ); |
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579 | assert( count != -1 ); |
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580 | if ( id == -1 ) id = count++; |
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581 | if ( expr->get_result() ) { |
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582 | set_result( expr->get_result()->clone() ); |
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583 | } |
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584 | } |
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585 | UniqueExpr::UniqueExpr( const UniqueExpr &other ) : Expression( other ), expr( maybeClone( other.expr ) ), object( maybeClone( other.object ) ), var( maybeClone( other.var ) ), id( other.id ) { |
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586 | } |
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587 | |
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588 | void UniqueExpr::print( std::ostream &os, Indenter indent ) const { |
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589 | os << "Unique Expression with id:" << id << std::endl << indent+1; |
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590 | expr->print( os, indent+1 ); |
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591 | if ( object ) { |
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592 | os << indent << "... with decl: "; |
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593 | get_object()->printShort( os, indent+1 ); |
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594 | } |
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595 | Expression::print( os, indent ); |
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596 | } |
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597 | |
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598 | InitAlternative::InitAlternative( Type * type, Designation * designation ) : type( type ), designation( designation ) {} |
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599 | InitAlternative::InitAlternative( const InitAlternative & other ) : type( maybeClone( other.type ) ), designation( maybeClone( other.designation ) ) {} |
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600 | |
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601 | UntypedInitExpr::UntypedInitExpr( Expression * expr, const std::list<InitAlternative> & initAlts ) : expr( expr ), initAlts( initAlts ) {} |
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602 | UntypedInitExpr::UntypedInitExpr( const UntypedInitExpr & other ) : Expression( other ), expr( maybeClone( other.expr ) ), initAlts( other.initAlts ) {} |
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603 | |
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604 | void UntypedInitExpr::print( std::ostream & os, Indenter indent ) const { |
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605 | os << "Untyped Init Expression" << std::endl << indent+1; |
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606 | expr->print( os, indent+1 ); |
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607 | if ( ! initAlts.empty() ) { |
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608 | for ( const InitAlternative & alt : initAlts ) { |
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609 | os << indent+1 << "InitAlternative: "; |
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610 | alt.type->print( os, indent+1 ); |
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611 | alt.designation->print( os, indent+1 ); |
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612 | } |
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613 | } |
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614 | } |
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615 | |
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616 | InitExpr::InitExpr( Expression * expr, Designation * designation ) : expr( expr ), designation( designation ) { |
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617 | set_result( expr->get_result()->clone() ); |
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618 | } |
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619 | InitExpr::InitExpr( const InitExpr & other ) : Expression( other ), expr( maybeClone( other.expr ) ), designation( maybeClone( other.designation) ) {} |
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620 | |
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621 | void InitExpr::print( std::ostream & os, Indenter indent ) const { |
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622 | os << "Init Expression" << std::endl << indent+1; |
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623 | expr->print( os, indent+1 ); |
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624 | os << indent+1 << "... with designation: "; |
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625 | designation->print( os, indent+1 ); |
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626 | } |
---|
627 | |
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628 | DeletedExpr::DeletedExpr( Expression * expr, BaseSyntaxNode * deleteStmt ) : expr( expr ), deleteStmt( deleteStmt ) { |
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629 | assert( expr->result ); |
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630 | result = expr->result->clone(); |
---|
631 | } |
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632 | DeletedExpr::DeletedExpr( const DeletedExpr & other ) : Expression( other ), expr( maybeClone( other.expr ) ), deleteStmt( other.deleteStmt ) {} |
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633 | |
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634 | void DeletedExpr::print( std::ostream & os, Indenter indent ) const { |
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635 | os << "Deleted Expression" << std::endl << indent+1; |
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636 | expr->print( os, indent+1 ); |
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637 | os << std::endl << indent+1 << "... deleted by: "; |
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638 | deleteStmt->print( os, indent+1 ); |
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639 | } |
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640 | |
---|
641 | |
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642 | // Local Variables: // |
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643 | // tab-width: 4 // |
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644 | // mode: c++ // |
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645 | // compile-command: "make install" // |
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646 | // End: // |
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