| 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 "Common/PassVisitor.h"
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| 17 | #include "SymTab/Indexer.h" // for Indexer
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| 18 | #include "SynTree/Declaration.h" // for TypeDecl, TypeDecl::Kind::Ftype
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| 19 | #include "SynTree/Mutator.h" // for Mutator
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| 20 | #include "SynTree/Type.h" // for PointerType, TypeInstType, Type
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| 21 | #include "TypeEnvironment.h" // for EqvClass, TypeEnvironment
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| 22 |
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| 23 | namespace ResolvExpr {
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| 24 | class AdjustExprType : public WithShortCircuiting {
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| 25 | public:
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| 26 | AdjustExprType( const TypeEnvironment & env, const SymTab::Indexer & indexer );
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| 27 | void premutate( VoidType * ) { visit_children = false; }
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| 28 | void premutate( BasicType * ) { visit_children = false; }
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| 29 | void premutate( PointerType * ) { visit_children = false; }
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| 30 | void premutate( ArrayType * ) { visit_children = false; }
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| 31 | void premutate( FunctionType * ) { visit_children = false; }
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| 32 | void premutate( StructInstType * ) { visit_children = false; }
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| 33 | void premutate( UnionInstType * ) { visit_children = false; }
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| 34 | void premutate( EnumInstType * ) { visit_children = false; }
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| 35 | void premutate( TraitInstType * ) { visit_children = false; }
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| 36 | void premutate( TypeInstType * ) { visit_children = false; }
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| 37 | void premutate( TupleType * ) { visit_children = false; }
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| 38 | void premutate( VarArgsType * ) { visit_children = false; }
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| 39 | void premutate( ZeroType * ) { visit_children = false; }
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| 40 | void premutate( OneType * ) { visit_children = false; }
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| 41 |
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| 42 | Type * postmutate( ArrayType *arrayType );
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| 43 | Type * postmutate( FunctionType *functionType );
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| 44 | Type * postmutate( TypeInstType *aggregateUseType );
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| 45 |
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| 46 | private:
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| 47 | const TypeEnvironment & env;
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| 48 | const SymTab::Indexer & indexer;
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| 49 | };
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| 50 |
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| 51 | void adjustExprType( Type *&type, const TypeEnvironment &env, const SymTab::Indexer &indexer ) {
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| 52 | PassVisitor<AdjustExprType> adjuster( env, indexer );
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| 53 | Type *newType = type->acceptMutator( adjuster );
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| 54 | type = newType;
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| 55 | }
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| 56 |
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| 57 | void adjustExprType( Type *& type ) {
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| 58 | TypeEnvironment env;
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| 59 | SymTab::Indexer indexer;
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| 60 | adjustExprType( type, env, indexer );
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| 61 | }
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| 62 |
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| 63 | AdjustExprType::AdjustExprType( const TypeEnvironment &env, const SymTab::Indexer &indexer )
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| 64 | : env( env ), indexer( indexer ) {
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| 65 | }
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| 66 |
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| 67 | Type * AdjustExprType::postmutate( ArrayType * arrayType ) {
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| 68 | PointerType *pointerType = new PointerType{ arrayType->get_qualifiers(), arrayType->base };
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| 69 | arrayType->base = nullptr;
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| 70 | delete arrayType;
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| 71 | return pointerType;
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| 72 | }
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| 73 |
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| 74 | Type * AdjustExprType::postmutate( FunctionType * functionType ) {
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| 75 | return new PointerType{ Type::Qualifiers(), functionType };
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| 76 | }
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| 77 |
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| 78 | Type * AdjustExprType::postmutate( TypeInstType * typeInst ) {
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| 79 | if ( const EqvClass* eqvClass = env.lookup( typeInst->get_name() ) ) {
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| 80 | if ( eqvClass->data.kind == TypeDecl::Ftype ) {
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| 81 | return new PointerType{ Type::Qualifiers(), typeInst };
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| 82 | }
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| 83 | } else if ( NamedTypeDecl *ntDecl = indexer.lookupType( typeInst->get_name() ) ) {
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| 84 | if ( TypeDecl *tyDecl = dynamic_cast< TypeDecl* >( ntDecl ) ) {
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| 85 | if ( tyDecl->get_kind() == TypeDecl::Ftype ) {
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| 86 | return new PointerType{ Type::Qualifiers(), typeInst };
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| 87 | } // if
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| 88 | } // if
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| 89 | } // if
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| 90 | return typeInst;
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| 91 | }
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| 92 | } // namespace ResolvExpr
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| 93 |
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| 94 | // Local Variables: //
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| 95 | // tab-width: 4 //
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| 96 | // mode: c++ //
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| 97 | // compile-command: "make install" //
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| 98 | // End: //
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