| 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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