| 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 | // AdjustExprType.cc -- |
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| 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sat May 16 23:41:42 2015 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Wed Mar 2 17:34:53 2016 |
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| 13 | // Update Count : 4 |
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| 14 | // |
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| 15 | |
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| 16 | #include "SymTab/Indexer.h" // for Indexer |
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| 17 | #include "SynTree/Declaration.h" // for TypeDecl, TypeDecl::Kind::Ftype |
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| 18 | #include "SynTree/Mutator.h" // for Mutator |
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| 19 | #include "SynTree/Type.h" // for PointerType, TypeInstType, Type |
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| 20 | #include "TypeEnvironment.h" // for EqvClass, TypeEnvironment |
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| 21 | |
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| 22 | namespace ResolvExpr { |
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| 23 | class AdjustExprType : public Mutator { |
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| 24 | typedef Mutator Parent; |
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| 25 | using Parent::mutate; |
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| 26 | public: |
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| 27 | AdjustExprType( const TypeEnvironment &env, const SymTab::Indexer &indexer ); |
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| 28 | private: |
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| 29 | virtual Type* mutate( VoidType *voidType ); |
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| 30 | virtual Type* mutate( BasicType *basicType ); |
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| 31 | virtual Type* mutate( PointerType *pointerType ); |
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| 32 | virtual Type* mutate( ArrayType *arrayType ); |
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| 33 | virtual Type* mutate( FunctionType *functionType ); |
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| 34 | virtual Type* mutate( StructInstType *aggregateUseType ); |
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| 35 | virtual Type* mutate( UnionInstType *aggregateUseType ); |
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| 36 | virtual Type* mutate( EnumInstType *aggregateUseType ); |
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| 37 | virtual Type* mutate( TraitInstType *aggregateUseType ); |
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| 38 | virtual Type* mutate( TypeInstType *aggregateUseType ); |
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| 39 | virtual Type* mutate( TupleType *tupleType ); |
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| 40 | virtual Type* mutate( VarArgsType *varArgsType ); |
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| 41 | virtual Type* mutate( ZeroType *zeroType ); |
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| 42 | virtual Type* mutate( OneType *oneType ); |
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| 43 | |
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| 44 | const TypeEnvironment &env; |
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| 45 | const SymTab::Indexer &indexer; |
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| 46 | }; |
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| 47 | |
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| 48 | void adjustExprType( Type *&type, const TypeEnvironment &env, const SymTab::Indexer &indexer ) { |
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| 49 | AdjustExprType adjuster( env, indexer ); |
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| 50 | Type *newType = type->acceptMutator( adjuster ); |
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| 51 | type = newType; |
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| 52 | } |
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| 53 | |
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| 54 | AdjustExprType::AdjustExprType( const TypeEnvironment &env, const SymTab::Indexer &indexer ) |
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| 55 | : env( env ), indexer( indexer ) { |
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| 56 | } |
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| 57 | |
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| 58 | Type *AdjustExprType::mutate( VoidType *voidType ) { |
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| 59 | return voidType; |
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| 60 | } |
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| 61 | |
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| 62 | Type *AdjustExprType::mutate( BasicType *basicType ) { |
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| 63 | return basicType; |
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| 64 | } |
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| 65 | |
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| 66 | Type *AdjustExprType::mutate( PointerType *pointerType ) { |
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| 67 | return pointerType; |
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| 68 | } |
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| 69 | |
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| 70 | Type *AdjustExprType::mutate( ArrayType *arrayType ) { |
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| 71 | // need to recursively mutate the base type in order for multi-dimensional arrays to work. |
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| 72 | PointerType *pointerType = new PointerType( arrayType->get_qualifiers(), arrayType->get_base()->clone()->acceptMutator( *this ) ); |
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| 73 | delete arrayType; |
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| 74 | return pointerType; |
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| 75 | } |
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| 76 | |
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| 77 | Type *AdjustExprType::mutate( FunctionType *functionType ) { |
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| 78 | PointerType *pointerType = new PointerType( Type::Qualifiers(), functionType ); |
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| 79 | return pointerType; |
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| 80 | } |
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| 81 | |
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| 82 | Type *AdjustExprType::mutate( StructInstType *aggregateUseType ) { |
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| 83 | return aggregateUseType; |
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| 84 | } |
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| 85 | |
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| 86 | Type *AdjustExprType::mutate( UnionInstType *aggregateUseType ) { |
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| 87 | return aggregateUseType; |
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| 88 | } |
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| 89 | |
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| 90 | Type *AdjustExprType::mutate( EnumInstType *aggregateUseType ) { |
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| 91 | return aggregateUseType; |
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| 92 | } |
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| 93 | |
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| 94 | Type *AdjustExprType::mutate( TraitInstType *aggregateUseType ) { |
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| 95 | return aggregateUseType; |
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| 96 | } |
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| 97 | |
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| 98 | Type *AdjustExprType::mutate( TypeInstType *typeInst ) { |
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| 99 | EqvClass eqvClass; |
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| 100 | if ( env.lookup( typeInst->get_name(), eqvClass ) ) { |
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| 101 | if ( eqvClass.data.kind == TypeDecl::Ftype ) { |
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| 102 | PointerType *pointerType = new PointerType( Type::Qualifiers(), typeInst ); |
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| 103 | return pointerType; |
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| 104 | } |
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| 105 | } else if ( NamedTypeDecl *ntDecl = indexer.lookupType( typeInst->get_name() ) ) { |
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| 106 | if ( TypeDecl *tyDecl = dynamic_cast< TypeDecl* >( ntDecl ) ) { |
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| 107 | if ( tyDecl->get_kind() == TypeDecl::Ftype ) { |
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| 108 | PointerType *pointerType = new PointerType( Type::Qualifiers(), typeInst ); |
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| 109 | return pointerType; |
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| 110 | } // if |
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| 111 | } // if |
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| 112 | } // if |
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| 113 | return typeInst; |
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| 114 | } |
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| 115 | |
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| 116 | Type *AdjustExprType::mutate( TupleType *tupleType ) { |
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| 117 | return tupleType; |
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| 118 | } |
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| 119 | |
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| 120 | Type *AdjustExprType::mutate( VarArgsType *varArgsType ) { |
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| 121 | return varArgsType; |
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| 122 | } |
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| 123 | |
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| 124 | Type *AdjustExprType::mutate( ZeroType *zeroType ) { |
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| 125 | return zeroType; |
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| 126 | } |
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| 127 | |
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| 128 | Type *AdjustExprType::mutate( OneType *oneType ) { |
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| 129 | return oneType; |
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| 130 | } |
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| 131 | } // namespace ResolvExpr |
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| 132 | |
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| 133 | // Local Variables: // |
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| 134 | // tab-width: 4 // |
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| 135 | // mode: c++ // |
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| 136 | // compile-command: "make install" // |
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| 137 | // End: // |
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