[51587aa] | 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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[486341f] | 7 | // GenType.cc -- |
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[51587aa] | 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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[42a36d9] | 11 | // Last Modified By : Andrew Beach |
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| 12 | // Last Modified On : Wed May 1 15:24:00 2019 |
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| 13 | // Update Count : 23 |
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[51587aa] | 14 | // |
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[3268a58] | 15 | #include "GenType.h" |
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[51587aa] | 16 | |
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[bf2438c] | 17 | #include <cassert> // for assert, assertf |
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| 18 | #include <list> // for _List_iterator, _List_const_iterator |
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| 19 | #include <sstream> // for operator<<, ostringstream, basic_os... |
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[51b7345] | 20 | |
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[bf2438c] | 21 | #include "CodeGenerator.h" // for CodeGenerator |
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| 22 | #include "SynTree/Declaration.h" // for DeclarationWithType |
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| 23 | #include "SynTree/Expression.h" // for Expression |
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| 24 | #include "SynTree/Type.h" // for PointerType, Type, FunctionType |
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| 25 | #include "SynTree/Visitor.h" // for Visitor |
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[51b7345] | 26 | |
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| 27 | namespace CodeGen { |
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[7dc0246d] | 28 | struct GenType : public WithVisitorRef<GenType>, public WithShortCircuiting { |
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[c198b69] | 29 | std::string typeString; |
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[42a36d9] | 30 | GenType( const std::string &typeString, const Options &options ); |
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[486341f] | 31 | |
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[7dc0246d] | 32 | void previsit( BaseSyntaxNode * ); |
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| 33 | void postvisit( BaseSyntaxNode * ); |
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| 34 | |
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| 35 | void postvisit( FunctionType * funcType ); |
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| 36 | void postvisit( VoidType * voidType ); |
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| 37 | void postvisit( BasicType * basicType ); |
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| 38 | void postvisit( PointerType * pointerType ); |
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| 39 | void postvisit( ArrayType * arrayType ); |
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| 40 | void postvisit( ReferenceType * refType ); |
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| 41 | void postvisit( StructInstType * structInst ); |
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| 42 | void postvisit( UnionInstType * unionInst ); |
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| 43 | void postvisit( EnumInstType * enumInst ); |
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| 44 | void postvisit( TypeInstType * typeInst ); |
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| 45 | void postvisit( TupleType * tupleType ); |
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| 46 | void postvisit( VarArgsType * varArgsType ); |
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| 47 | void postvisit( ZeroType * zeroType ); |
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| 48 | void postvisit( OneType * oneType ); |
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[c194661] | 49 | void postvisit( GlobalScopeType * globalType ); |
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[da9d79b] | 50 | void postvisit( TraitInstType * inst ); |
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| 51 | void postvisit( TypeofType * typeof ); |
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[c194661] | 52 | void postvisit( QualifiedType * qualType ); |
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[486341f] | 53 | |
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[51587aa] | 54 | private: |
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| 55 | void handleQualifiers( Type *type ); |
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[e39241b] | 56 | std::string handleGeneric( ReferenceToType * refType ); |
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[51587aa] | 57 | void genArray( const Type::Qualifiers &qualifiers, Type *base, Expression *dimension, bool isVarLen, bool isStatic ); |
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[486341f] | 58 | |
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[42a36d9] | 59 | Options options; |
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[51587aa] | 60 | }; |
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| 61 | |
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[42a36d9] | 62 | std::string genType( Type *type, const std::string &baseString, const Options &options ) { |
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| 63 | PassVisitor<GenType> gt( baseString, options ); |
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[c0aa336] | 64 | std::ostringstream os; |
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[35b1bf4] | 65 | |
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[c0aa336] | 66 | if ( ! type->get_attributes().empty() ) { |
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[42a36d9] | 67 | PassVisitor<CodeGenerator> cg( os, options ); |
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[9857e8d] | 68 | cg.pass.genAttributes( type->get_attributes() ); |
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[c0aa336] | 69 | } // if |
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| 70 | |
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[51587aa] | 71 | type->accept( gt ); |
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[c198b69] | 72 | return os.str() + gt.pass.typeString; |
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[51587aa] | 73 | } |
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| 74 | |
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[42a36d9] | 75 | std::string genType( Type *type, const std::string &baseString, bool pretty, bool genC , bool lineMarks ) { |
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| 76 | return genType( type, baseString, Options(pretty, genC, lineMarks, false ) ); |
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| 77 | } |
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| 78 | |
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| 79 | std::string genPrettyType( Type * type, const std::string & baseString ) { |
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| 80 | return genType( type, baseString, true, false ); |
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| 81 | } |
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[35b1bf4] | 82 | |
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[42a36d9] | 83 | GenType::GenType( const std::string &typeString, const Options &options ) : typeString( typeString ), options( options ) {} |
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[51587aa] | 84 | |
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[7dc0246d] | 85 | // *** BaseSyntaxNode |
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| 86 | void GenType::previsit( BaseSyntaxNode * ) { |
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| 87 | // turn off automatic recursion for all nodes, to allow each visitor to |
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| 88 | // precisely control the order in which its children are visited. |
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| 89 | visit_children = false; |
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| 90 | } |
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| 91 | |
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| 92 | void GenType::postvisit( BaseSyntaxNode * node ) { |
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| 93 | std::stringstream ss; |
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| 94 | node->print( ss ); |
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| 95 | assertf( false, "Unhandled node reached in GenType: %s", ss.str().c_str() ); |
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| 96 | } |
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| 97 | |
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| 98 | void GenType::postvisit( VoidType * voidType ) { |
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[51587aa] | 99 | typeString = "void " + typeString; |
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| 100 | handleQualifiers( voidType ); |
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| 101 | } |
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| 102 | |
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[7dc0246d] | 103 | void GenType::postvisit( BasicType * basicType ) { |
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| 104 | BasicType::Kind kind = basicType->kind; |
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[51587aa] | 105 | assert( 0 <= kind && kind < BasicType::NUMBER_OF_BASIC_TYPES ); |
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| 106 | typeString = std::string( BasicType::typeNames[kind] ) + " " + typeString; |
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| 107 | handleQualifiers( basicType ); |
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| 108 | } |
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| 109 | |
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[7dc0246d] | 110 | void GenType::genArray( const Type::Qualifiers & qualifiers, Type * base, Expression *dimension, bool isVarLen, bool isStatic ) { |
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[5f2f2d7] | 111 | std::ostringstream os; |
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[51587aa] | 112 | if ( typeString != "" ) { |
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| 113 | if ( typeString[ 0 ] == '*' ) { |
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| 114 | os << "(" << typeString << ")"; |
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| 115 | } else { |
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| 116 | os << typeString; |
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| 117 | } // if |
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| 118 | } // if |
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| 119 | os << "["; |
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| 120 | |
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| 121 | if ( isStatic ) { |
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| 122 | os << "static "; |
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| 123 | } // if |
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[615a096] | 124 | if ( qualifiers.is_const ) { |
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[51587aa] | 125 | os << "const "; |
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| 126 | } // if |
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[615a096] | 127 | if ( qualifiers.is_volatile ) { |
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[51587aa] | 128 | os << "volatile "; |
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| 129 | } // if |
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[615a096] | 130 | if ( qualifiers.is_restrict ) { |
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[51587aa] | 131 | os << "__restrict "; |
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| 132 | } // if |
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[615a096] | 133 | if ( qualifiers.is_atomic ) { |
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[51587aa] | 134 | os << "_Atomic "; |
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| 135 | } // if |
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| 136 | if ( dimension != 0 ) { |
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[42a36d9] | 137 | PassVisitor<CodeGenerator> cg( os, options ); |
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[51587aa] | 138 | dimension->accept( cg ); |
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[71bd8c6] | 139 | } else if ( isVarLen ) { |
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[1db21619] | 140 | // no dimension expression on a VLA means it came in with the * token |
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[71bd8c6] | 141 | os << "*"; |
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[51587aa] | 142 | } // if |
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| 143 | os << "]"; |
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| 144 | |
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[5f2f2d7] | 145 | typeString = os.str(); |
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[486341f] | 146 | |
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[7dc0246d] | 147 | base->accept( *visitor ); |
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[51587aa] | 148 | } |
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| 149 | |
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[7dc0246d] | 150 | void GenType::postvisit( PointerType * pointerType ) { |
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| 151 | assert( pointerType->base != 0); |
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| 152 | if ( pointerType->get_isStatic() || pointerType->get_isVarLen() || pointerType->dimension ) { |
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| 153 | genArray( pointerType->get_qualifiers(), pointerType->base, pointerType->dimension, pointerType->get_isVarLen(), pointerType->get_isStatic() ); |
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[51587aa] | 154 | } else { |
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| 155 | handleQualifiers( pointerType ); |
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| 156 | if ( typeString[ 0 ] == '?' ) { |
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| 157 | typeString = "* " + typeString; |
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| 158 | } else { |
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| 159 | typeString = "*" + typeString; |
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| 160 | } // if |
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[7dc0246d] | 161 | pointerType->base->accept( *visitor ); |
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[51587aa] | 162 | } // if |
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| 163 | } |
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| 164 | |
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[7dc0246d] | 165 | void GenType::postvisit( ArrayType * arrayType ) { |
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| 166 | genArray( arrayType->get_qualifiers(), arrayType->base, arrayType->dimension, arrayType->get_isVarLen(), arrayType->get_isStatic() ); |
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[51587aa] | 167 | } |
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| 168 | |
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[7dc0246d] | 169 | void GenType::postvisit( ReferenceType * refType ) { |
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| 170 | assert( refType->base != 0); |
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[42a36d9] | 171 | assertf( ! options.genC, "Reference types should not reach code generation." ); |
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[ce8c12f] | 172 | handleQualifiers( refType ); |
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| 173 | typeString = "&" + typeString; |
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[7dc0246d] | 174 | refType->base->accept( *visitor ); |
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[ce8c12f] | 175 | } |
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| 176 | |
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[7dc0246d] | 177 | void GenType::postvisit( FunctionType * funcType ) { |
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[5f2f2d7] | 178 | std::ostringstream os; |
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[51587aa] | 179 | |
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| 180 | if ( typeString != "" ) { |
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| 181 | if ( typeString[ 0 ] == '*' ) { |
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| 182 | os << "(" << typeString << ")"; |
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| 183 | } else { |
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| 184 | os << typeString; |
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| 185 | } // if |
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| 186 | } // if |
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[486341f] | 187 | |
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[51587aa] | 188 | /************* parameters ***************/ |
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| 189 | |
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[7dc0246d] | 190 | const std::list<DeclarationWithType *> &pars = funcType->parameters; |
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[51587aa] | 191 | |
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| 192 | if ( pars.empty() ) { |
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| 193 | if ( funcType->get_isVarArgs() ) { |
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| 194 | os << "()"; |
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| 195 | } else { |
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| 196 | os << "(void)"; |
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| 197 | } // if |
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| 198 | } else { |
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[42a36d9] | 199 | PassVisitor<CodeGenerator> cg( os, options ); |
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[51587aa] | 200 | os << "(" ; |
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| 201 | |
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[9857e8d] | 202 | cg.pass.genCommaList( pars.begin(), pars.end() ); |
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[51587aa] | 203 | |
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[a08ba92] | 204 | if ( funcType->get_isVarArgs() ) { |
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[51587aa] | 205 | os << ", ..."; |
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| 206 | } // if |
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| 207 | os << ")"; |
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| 208 | } // if |
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[486341f] | 209 | |
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[5f2f2d7] | 210 | typeString = os.str(); |
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[51587aa] | 211 | |
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[7dc0246d] | 212 | if ( funcType->returnVals.size() == 0 ) { |
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[51587aa] | 213 | typeString = "void " + typeString; |
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| 214 | } else { |
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[7dc0246d] | 215 | funcType->returnVals.front()->get_type()->accept( *visitor ); |
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[51587aa] | 216 | } // if |
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[5f642e38] | 217 | |
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| 218 | // add forall |
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[42a36d9] | 219 | if( ! funcType->forall.empty() && ! options.genC ) { |
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[5f642e38] | 220 | // assertf( ! genC, "Aggregate type parameters should not reach code generation." ); |
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| 221 | std::ostringstream os; |
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[42a36d9] | 222 | PassVisitor<CodeGenerator> cg( os, options ); |
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[5f642e38] | 223 | os << "forall("; |
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[7dc0246d] | 224 | cg.pass.genCommaList( funcType->forall.begin(), funcType->forall.end() ); |
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[5f642e38] | 225 | os << ")" << std::endl; |
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| 226 | typeString = os.str() + typeString; |
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| 227 | } |
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[51587aa] | 228 | } |
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| 229 | |
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[e39241b] | 230 | std::string GenType::handleGeneric( ReferenceToType * refType ) { |
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[86f852b] | 231 | if ( ! refType->parameters.empty() ) { |
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[e39241b] | 232 | std::ostringstream os; |
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[42a36d9] | 233 | PassVisitor<CodeGenerator> cg( os, options ); |
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[e39241b] | 234 | os << "("; |
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[86f852b] | 235 | cg.pass.genCommaList( refType->parameters.begin(), refType->parameters.end() ); |
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[e39241b] | 236 | os << ") "; |
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| 237 | return os.str(); |
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| 238 | } |
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| 239 | return ""; |
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| 240 | } |
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| 241 | |
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[7dc0246d] | 242 | void GenType::postvisit( StructInstType * structInst ) { |
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| 243 | typeString = structInst->name + handleGeneric( structInst ) + " " + typeString; |
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[42a36d9] | 244 | if ( options.genC ) typeString = "struct " + typeString; |
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[51587aa] | 245 | handleQualifiers( structInst ); |
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| 246 | } |
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| 247 | |
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[7dc0246d] | 248 | void GenType::postvisit( UnionInstType * unionInst ) { |
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| 249 | typeString = unionInst->name + handleGeneric( unionInst ) + " " + typeString; |
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[42a36d9] | 250 | if ( options.genC ) typeString = "union " + typeString; |
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[51587aa] | 251 | handleQualifiers( unionInst ); |
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| 252 | } |
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| 253 | |
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[7dc0246d] | 254 | void GenType::postvisit( EnumInstType * enumInst ) { |
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| 255 | typeString = enumInst->name + " " + typeString; |
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[42a36d9] | 256 | if ( options.genC ) typeString = "enum " + typeString; |
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[51587aa] | 257 | handleQualifiers( enumInst ); |
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| 258 | } |
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| 259 | |
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[7dc0246d] | 260 | void GenType::postvisit( TypeInstType * typeInst ) { |
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| 261 | typeString = typeInst->name + " " + typeString; |
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[51587aa] | 262 | handleQualifiers( typeInst ); |
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| 263 | } |
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| 264 | |
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[7dc0246d] | 265 | void GenType::postvisit( TupleType * tupleType ) { |
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[42a36d9] | 266 | assertf( ! options.genC, "Tuple types should not reach code generation." ); |
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[35b1bf4] | 267 | unsigned int i = 0; |
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| 268 | std::ostringstream os; |
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| 269 | os << "["; |
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| 270 | for ( Type * t : *tupleType ) { |
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| 271 | i++; |
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[42a36d9] | 272 | os << genType( t, "", options ) << (i == tupleType->size() ? "" : ", "); |
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[35b1bf4] | 273 | } |
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[65aca88] | 274 | os << "] "; |
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[35b1bf4] | 275 | typeString = os.str() + typeString; |
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[6d4d1a6] | 276 | } |
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| 277 | |
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[7dc0246d] | 278 | void GenType::postvisit( VarArgsType * varArgsType ) { |
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[44b7088] | 279 | typeString = "__builtin_va_list " + typeString; |
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[540ddb7d] | 280 | handleQualifiers( varArgsType ); |
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[44b7088] | 281 | } |
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| 282 | |
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[7dc0246d] | 283 | void GenType::postvisit( ZeroType * zeroType ) { |
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[89e6ffc] | 284 | // ideally these wouldn't hit codegen at all, but should be safe to make them ints |
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[42a36d9] | 285 | typeString = (options.pretty ? "zero_t " : "long int ") + typeString; |
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[89e6ffc] | 286 | handleQualifiers( zeroType ); |
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| 287 | } |
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| 288 | |
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[7dc0246d] | 289 | void GenType::postvisit( OneType * oneType ) { |
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[89e6ffc] | 290 | // ideally these wouldn't hit codegen at all, but should be safe to make them ints |
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[42a36d9] | 291 | typeString = (options.pretty ? "one_t " : "long int ") + typeString; |
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[89e6ffc] | 292 | handleQualifiers( oneType ); |
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| 293 | } |
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| 294 | |
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[c194661] | 295 | void GenType::postvisit( GlobalScopeType * globalType ) { |
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[42a36d9] | 296 | assertf( ! options.genC, "Global scope type should not reach code generation." ); |
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[c194661] | 297 | handleQualifiers( globalType ); |
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| 298 | } |
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| 299 | |
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[da9d79b] | 300 | void GenType::postvisit( TraitInstType * inst ) { |
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[42a36d9] | 301 | assertf( ! options.genC, "Trait types should not reach code generation." ); |
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[da9d79b] | 302 | typeString = inst->name + " " + typeString; |
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| 303 | handleQualifiers( inst ); |
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| 304 | } |
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| 305 | |
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| 306 | void GenType::postvisit( TypeofType * typeof ) { |
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| 307 | std::ostringstream os; |
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[42a36d9] | 308 | PassVisitor<CodeGenerator> cg( os, options ); |
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[da9d79b] | 309 | os << "typeof("; |
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| 310 | typeof->expr->accept( cg ); |
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| 311 | os << ") " << typeString; |
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| 312 | typeString = os.str(); |
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| 313 | handleQualifiers( typeof ); |
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| 314 | } |
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| 315 | |
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[c194661] | 316 | void GenType::postvisit( QualifiedType * qualType ) { |
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[42a36d9] | 317 | assertf( ! options.genC, "Qualified types should not reach code generation." ); |
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[c194661] | 318 | std::ostringstream os; |
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[42a36d9] | 319 | os << genType( qualType->parent, "", options ) << "." << genType( qualType->child, "", options ) << typeString; |
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[c194661] | 320 | typeString = os.str(); |
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| 321 | handleQualifiers( qualType ); |
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| 322 | } |
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| 323 | |
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[7dc0246d] | 324 | void GenType::handleQualifiers( Type * type ) { |
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[615a096] | 325 | if ( type->get_const() ) { |
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[51587aa] | 326 | typeString = "const " + typeString; |
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| 327 | } // if |
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[615a096] | 328 | if ( type->get_volatile() ) { |
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[51587aa] | 329 | typeString = "volatile " + typeString; |
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| 330 | } // if |
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[615a096] | 331 | if ( type->get_restrict() ) { |
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[51587aa] | 332 | typeString = "__restrict " + typeString; |
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| 333 | } // if |
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[615a096] | 334 | if ( type->get_atomic() ) { |
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[51587aa] | 335 | typeString = "_Atomic " + typeString; |
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| 336 | } // if |
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| 337 | } |
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[51b7345] | 338 | } // namespace CodeGen |
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[51587aa] | 339 | |
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| 340 | // Local Variables: // |
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| 341 | // tab-width: 4 // |
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| 342 | // mode: c++ // |
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| 343 | // compile-command: "make install" // |
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| 344 | // End: // |
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