[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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[1db21619] | 11 | // Last Modified By : Peter A. Buhr |
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[615a096] | 12 | // Last Modified On : Fri Mar 17 09:02:28 2017 |
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| 13 | // Update Count : 22 |
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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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| 30 | GenType( const std::string &typeString, bool pretty, bool genC, bool lineMarks ); |
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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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[c198b69] | 59 | bool pretty = false; // pretty print |
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| 60 | bool genC = false; // generating C code? |
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| 61 | bool lineMarks = false; // lineMarks on for CodeGenerator? |
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[51587aa] | 62 | }; |
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| 63 | |
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[c850687] | 64 | std::string genType( Type *type, const std::string &baseString, bool pretty, bool genC , bool lineMarks ) { |
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[7dc0246d] | 65 | PassVisitor<GenType> gt( baseString, pretty, genC, lineMarks ); |
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[c0aa336] | 66 | std::ostringstream os; |
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[35b1bf4] | 67 | |
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[c0aa336] | 68 | if ( ! type->get_attributes().empty() ) { |
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[9857e8d] | 69 | PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks ); |
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| 70 | cg.pass.genAttributes( type->get_attributes() ); |
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[c0aa336] | 71 | } // if |
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| 72 | |
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[51587aa] | 73 | type->accept( gt ); |
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[c198b69] | 74 | return os.str() + gt.pass.typeString; |
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[51587aa] | 75 | } |
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| 76 | |
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[35b1bf4] | 77 | std::string genPrettyType( Type * type, const std::string & baseString ) { |
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[e39241b] | 78 | return genType( type, baseString, true, false ); |
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[35b1bf4] | 79 | } |
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| 80 | |
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[c850687] | 81 | GenType::GenType( const std::string &typeString, bool pretty, bool genC, bool lineMarks ) : typeString( typeString ), pretty( pretty ), genC( genC ), lineMarks( lineMarks ) {} |
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[51587aa] | 82 | |
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[7dc0246d] | 83 | // *** BaseSyntaxNode |
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| 84 | void GenType::previsit( BaseSyntaxNode * ) { |
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| 85 | // turn off automatic recursion for all nodes, to allow each visitor to |
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| 86 | // precisely control the order in which its children are visited. |
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| 87 | visit_children = false; |
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| 88 | } |
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| 89 | |
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| 90 | void GenType::postvisit( BaseSyntaxNode * node ) { |
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| 91 | std::stringstream ss; |
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| 92 | node->print( ss ); |
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| 93 | assertf( false, "Unhandled node reached in GenType: %s", ss.str().c_str() ); |
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| 94 | } |
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| 95 | |
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| 96 | void GenType::postvisit( VoidType * voidType ) { |
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[51587aa] | 97 | typeString = "void " + typeString; |
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| 98 | handleQualifiers( voidType ); |
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| 99 | } |
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| 100 | |
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[7dc0246d] | 101 | void GenType::postvisit( BasicType * basicType ) { |
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| 102 | BasicType::Kind kind = basicType->kind; |
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[51587aa] | 103 | assert( 0 <= kind && kind < BasicType::NUMBER_OF_BASIC_TYPES ); |
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| 104 | typeString = std::string( BasicType::typeNames[kind] ) + " " + typeString; |
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| 105 | handleQualifiers( basicType ); |
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| 106 | } |
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| 107 | |
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[7dc0246d] | 108 | void GenType::genArray( const Type::Qualifiers & qualifiers, Type * base, Expression *dimension, bool isVarLen, bool isStatic ) { |
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[5f2f2d7] | 109 | std::ostringstream os; |
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[51587aa] | 110 | if ( typeString != "" ) { |
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| 111 | if ( typeString[ 0 ] == '*' ) { |
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| 112 | os << "(" << typeString << ")"; |
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| 113 | } else { |
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| 114 | os << typeString; |
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| 115 | } // if |
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| 116 | } // if |
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| 117 | os << "["; |
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| 118 | |
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| 119 | if ( isStatic ) { |
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| 120 | os << "static "; |
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| 121 | } // if |
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[615a096] | 122 | if ( qualifiers.is_const ) { |
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[51587aa] | 123 | os << "const "; |
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| 124 | } // if |
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[615a096] | 125 | if ( qualifiers.is_volatile ) { |
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[51587aa] | 126 | os << "volatile "; |
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| 127 | } // if |
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[615a096] | 128 | if ( qualifiers.is_restrict ) { |
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[51587aa] | 129 | os << "__restrict "; |
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| 130 | } // if |
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[615a096] | 131 | if ( qualifiers.is_atomic ) { |
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[51587aa] | 132 | os << "_Atomic "; |
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| 133 | } // if |
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| 134 | if ( dimension != 0 ) { |
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[9857e8d] | 135 | PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks ); |
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[51587aa] | 136 | dimension->accept( cg ); |
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[71bd8c6] | 137 | } else if ( isVarLen ) { |
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[1db21619] | 138 | // no dimension expression on a VLA means it came in with the * token |
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[71bd8c6] | 139 | os << "*"; |
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[51587aa] | 140 | } // if |
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| 141 | os << "]"; |
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| 142 | |
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[5f2f2d7] | 143 | typeString = os.str(); |
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[486341f] | 144 | |
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[7dc0246d] | 145 | base->accept( *visitor ); |
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[51587aa] | 146 | } |
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| 147 | |
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[7dc0246d] | 148 | void GenType::postvisit( PointerType * pointerType ) { |
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| 149 | assert( pointerType->base != 0); |
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| 150 | if ( pointerType->get_isStatic() || pointerType->get_isVarLen() || pointerType->dimension ) { |
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| 151 | genArray( pointerType->get_qualifiers(), pointerType->base, pointerType->dimension, pointerType->get_isVarLen(), pointerType->get_isStatic() ); |
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[51587aa] | 152 | } else { |
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| 153 | handleQualifiers( pointerType ); |
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| 154 | if ( typeString[ 0 ] == '?' ) { |
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| 155 | typeString = "* " + typeString; |
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| 156 | } else { |
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| 157 | typeString = "*" + typeString; |
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| 158 | } // if |
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[7dc0246d] | 159 | pointerType->base->accept( *visitor ); |
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[51587aa] | 160 | } // if |
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| 161 | } |
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| 162 | |
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[7dc0246d] | 163 | void GenType::postvisit( ArrayType * arrayType ) { |
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| 164 | genArray( arrayType->get_qualifiers(), arrayType->base, arrayType->dimension, arrayType->get_isVarLen(), arrayType->get_isStatic() ); |
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[51587aa] | 165 | } |
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| 166 | |
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[7dc0246d] | 167 | void GenType::postvisit( ReferenceType * refType ) { |
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| 168 | assert( refType->base != 0); |
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[ce8c12f] | 169 | assertf( ! genC, "Reference types should not reach code generation." ); |
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| 170 | handleQualifiers( refType ); |
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| 171 | typeString = "&" + typeString; |
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[7dc0246d] | 172 | refType->base->accept( *visitor ); |
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[ce8c12f] | 173 | } |
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| 174 | |
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[7dc0246d] | 175 | void GenType::postvisit( FunctionType * funcType ) { |
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[5f2f2d7] | 176 | std::ostringstream os; |
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[51587aa] | 177 | |
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| 178 | if ( typeString != "" ) { |
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| 179 | if ( typeString[ 0 ] == '*' ) { |
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| 180 | os << "(" << typeString << ")"; |
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| 181 | } else { |
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| 182 | os << typeString; |
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| 183 | } // if |
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| 184 | } // if |
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[486341f] | 185 | |
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[51587aa] | 186 | /************* parameters ***************/ |
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| 187 | |
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[7dc0246d] | 188 | const std::list<DeclarationWithType *> &pars = funcType->parameters; |
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[51587aa] | 189 | |
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| 190 | if ( pars.empty() ) { |
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| 191 | if ( funcType->get_isVarArgs() ) { |
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| 192 | os << "()"; |
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| 193 | } else { |
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| 194 | os << "(void)"; |
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| 195 | } // if |
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| 196 | } else { |
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[9857e8d] | 197 | PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks ); |
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[51587aa] | 198 | os << "(" ; |
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| 199 | |
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[9857e8d] | 200 | cg.pass.genCommaList( pars.begin(), pars.end() ); |
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[51587aa] | 201 | |
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[a08ba92] | 202 | if ( funcType->get_isVarArgs() ) { |
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[51587aa] | 203 | os << ", ..."; |
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| 204 | } // if |
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| 205 | os << ")"; |
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| 206 | } // if |
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[486341f] | 207 | |
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[5f2f2d7] | 208 | typeString = os.str(); |
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[51587aa] | 209 | |
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[7dc0246d] | 210 | if ( funcType->returnVals.size() == 0 ) { |
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[51587aa] | 211 | typeString = "void " + typeString; |
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| 212 | } else { |
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[7dc0246d] | 213 | funcType->returnVals.front()->get_type()->accept( *visitor ); |
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[51587aa] | 214 | } // if |
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[5f642e38] | 215 | |
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| 216 | // add forall |
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[7dc0246d] | 217 | if( ! funcType->forall.empty() && ! genC ) { |
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[5f642e38] | 218 | // assertf( ! genC, "Aggregate type parameters should not reach code generation." ); |
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| 219 | std::ostringstream os; |
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[9857e8d] | 220 | PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks ); |
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[5f642e38] | 221 | os << "forall("; |
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[7dc0246d] | 222 | cg.pass.genCommaList( funcType->forall.begin(), funcType->forall.end() ); |
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[5f642e38] | 223 | os << ")" << std::endl; |
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| 224 | typeString = os.str() + typeString; |
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| 225 | } |
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[51587aa] | 226 | } |
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| 227 | |
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[e39241b] | 228 | std::string GenType::handleGeneric( ReferenceToType * refType ) { |
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[86f852b] | 229 | if ( ! refType->parameters.empty() ) { |
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[e39241b] | 230 | std::ostringstream os; |
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[9857e8d] | 231 | PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks ); |
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[e39241b] | 232 | os << "("; |
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[86f852b] | 233 | cg.pass.genCommaList( refType->parameters.begin(), refType->parameters.end() ); |
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[e39241b] | 234 | os << ") "; |
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| 235 | return os.str(); |
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| 236 | } |
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| 237 | return ""; |
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| 238 | } |
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| 239 | |
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[7dc0246d] | 240 | void GenType::postvisit( StructInstType * structInst ) { |
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| 241 | typeString = structInst->name + handleGeneric( structInst ) + " " + typeString; |
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[e39241b] | 242 | if ( genC ) typeString = "struct " + typeString; |
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[51587aa] | 243 | handleQualifiers( structInst ); |
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| 244 | } |
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| 245 | |
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[7dc0246d] | 246 | void GenType::postvisit( UnionInstType * unionInst ) { |
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| 247 | typeString = unionInst->name + handleGeneric( unionInst ) + " " + typeString; |
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[e39241b] | 248 | if ( genC ) typeString = "union " + typeString; |
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[51587aa] | 249 | handleQualifiers( unionInst ); |
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| 250 | } |
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| 251 | |
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[7dc0246d] | 252 | void GenType::postvisit( EnumInstType * enumInst ) { |
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| 253 | typeString = enumInst->name + " " + typeString; |
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[e39241b] | 254 | if ( genC ) typeString = "enum " + typeString; |
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[51587aa] | 255 | handleQualifiers( enumInst ); |
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| 256 | } |
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| 257 | |
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[7dc0246d] | 258 | void GenType::postvisit( TypeInstType * typeInst ) { |
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| 259 | typeString = typeInst->name + " " + typeString; |
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[51587aa] | 260 | handleQualifiers( typeInst ); |
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| 261 | } |
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| 262 | |
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[7dc0246d] | 263 | void GenType::postvisit( TupleType * tupleType ) { |
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[e39241b] | 264 | assertf( ! genC, "Tuple types should not reach code generation." ); |
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[35b1bf4] | 265 | unsigned int i = 0; |
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| 266 | std::ostringstream os; |
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| 267 | os << "["; |
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| 268 | for ( Type * t : *tupleType ) { |
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| 269 | i++; |
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[c850687] | 270 | os << genType( t, "", pretty, genC, lineMarks ) << (i == tupleType->size() ? "" : ", "); |
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[35b1bf4] | 271 | } |
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[65aca88] | 272 | os << "] "; |
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[35b1bf4] | 273 | typeString = os.str() + typeString; |
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[6d4d1a6] | 274 | } |
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| 275 | |
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[7dc0246d] | 276 | void GenType::postvisit( VarArgsType * varArgsType ) { |
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[44b7088] | 277 | typeString = "__builtin_va_list " + typeString; |
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[540ddb7d] | 278 | handleQualifiers( varArgsType ); |
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[44b7088] | 279 | } |
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| 280 | |
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[7dc0246d] | 281 | void GenType::postvisit( ZeroType * zeroType ) { |
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[89e6ffc] | 282 | // ideally these wouldn't hit codegen at all, but should be safe to make them ints |
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[35b1bf4] | 283 | typeString = (pretty ? "zero_t " : "long int ") + typeString; |
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[89e6ffc] | 284 | handleQualifiers( zeroType ); |
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| 285 | } |
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| 286 | |
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[7dc0246d] | 287 | void GenType::postvisit( OneType * oneType ) { |
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[89e6ffc] | 288 | // ideally these wouldn't hit codegen at all, but should be safe to make them ints |
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[35b1bf4] | 289 | typeString = (pretty ? "one_t " : "long int ") + typeString; |
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[89e6ffc] | 290 | handleQualifiers( oneType ); |
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| 291 | } |
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| 292 | |
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[c194661] | 293 | void GenType::postvisit( GlobalScopeType * globalType ) { |
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| 294 | assertf( ! genC, "Global scope type should not reach code generation." ); |
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| 295 | handleQualifiers( globalType ); |
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| 296 | } |
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| 297 | |
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[da9d79b] | 298 | void GenType::postvisit( TraitInstType * inst ) { |
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| 299 | assertf( ! genC, "Trait types should not reach code generation." ); |
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| 300 | typeString = inst->name + " " + typeString; |
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| 301 | handleQualifiers( inst ); |
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| 302 | } |
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| 303 | |
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| 304 | void GenType::postvisit( TypeofType * typeof ) { |
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| 305 | std::ostringstream os; |
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| 306 | PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks ); |
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| 307 | os << "typeof("; |
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| 308 | typeof->expr->accept( cg ); |
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| 309 | os << ") " << typeString; |
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| 310 | typeString = os.str(); |
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| 311 | handleQualifiers( typeof ); |
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| 312 | } |
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| 313 | |
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[c194661] | 314 | void GenType::postvisit( QualifiedType * qualType ) { |
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| 315 | assertf( ! genC, "Qualified types should not reach code generation." ); |
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| 316 | std::ostringstream os; |
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[450805a] | 317 | os << genType( qualType->parent, "", pretty, genC, lineMarks ) << "." << genType( qualType->child, "", pretty, genC, lineMarks ) << typeString; |
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[c194661] | 318 | typeString = os.str(); |
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| 319 | handleQualifiers( qualType ); |
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| 320 | } |
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| 321 | |
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[7dc0246d] | 322 | void GenType::handleQualifiers( Type * type ) { |
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[615a096] | 323 | if ( type->get_const() ) { |
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[51587aa] | 324 | typeString = "const " + typeString; |
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| 325 | } // if |
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[615a096] | 326 | if ( type->get_volatile() ) { |
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[51587aa] | 327 | typeString = "volatile " + typeString; |
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| 328 | } // if |
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[615a096] | 329 | if ( type->get_restrict() ) { |
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[51587aa] | 330 | typeString = "__restrict " + typeString; |
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| 331 | } // if |
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[615a096] | 332 | if ( type->get_atomic() ) { |
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[51587aa] | 333 | typeString = "_Atomic " + typeString; |
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| 334 | } // if |
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[d104b02] | 335 | if ( type->get_lvalue() && ! genC ) { |
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| 336 | // when not generating C code, print lvalue for debugging. |
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| 337 | typeString = "lvalue " + typeString; |
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| 338 | } |
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[51587aa] | 339 | } |
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[51b7345] | 340 | } // namespace CodeGen |
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[51587aa] | 341 | |
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| 342 | // Local Variables: // |
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| 343 | // tab-width: 4 // |
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| 344 | // mode: c++ // |
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| 345 | // compile-command: "make install" // |
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| 346 | // End: // |
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