| 1 | // |
|---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
|---|
| 3 | // |
|---|
| 4 | // The contents of this file are covered under the licence agreement in the |
|---|
| 5 | // file "LICENCE" distributed with Cforall. |
|---|
| 6 | // |
|---|
| 7 | // AdjustExprType.cc -- |
|---|
| 8 | // |
|---|
| 9 | // Author : Richard C. Bilson |
|---|
| 10 | // Created On : Sat May 16 23:41:42 2015 |
|---|
| 11 | // Last Modified By : Peter A. Buhr |
|---|
| 12 | // Last Modified On : Wed Mar 2 17:34:53 2016 |
|---|
| 13 | // Update Count : 4 |
|---|
| 14 | // |
|---|
| 15 | |
|---|
| 16 | #include "Common/PassVisitor.h" |
|---|
| 17 | #include "SymTab/Indexer.h" // for Indexer |
|---|
| 18 | #include "SynTree/Declaration.h" // for TypeDecl, TypeDecl::Kind::Ftype |
|---|
| 19 | #include "SynTree/Mutator.h" // for Mutator |
|---|
| 20 | #include "SynTree/Type.h" // for PointerType, TypeInstType, Type |
|---|
| 21 | #include "TypeEnvironment.h" // for EqvClass, TypeEnvironment |
|---|
| 22 | |
|---|
| 23 | namespace ResolvExpr { |
|---|
| 24 | class AdjustExprType : public WithShortCircuiting { |
|---|
| 25 | public: |
|---|
| 26 | AdjustExprType( const TypeEnvironment & env, const SymTab::Indexer & indexer ); |
|---|
| 27 | void premutate( VoidType * ) { visit_children = false; } |
|---|
| 28 | void premutate( BasicType * ) { visit_children = false; } |
|---|
| 29 | void premutate( PointerType * ) { visit_children = false; } |
|---|
| 30 | void premutate( ArrayType * ) { visit_children = false; } |
|---|
| 31 | void premutate( FunctionType * ) { visit_children = false; } |
|---|
| 32 | void premutate( StructInstType * ) { visit_children = false; } |
|---|
| 33 | void premutate( UnionInstType * ) { visit_children = false; } |
|---|
| 34 | void premutate( EnumInstType * ) { visit_children = false; } |
|---|
| 35 | void premutate( TraitInstType * ) { visit_children = false; } |
|---|
| 36 | void premutate( TypeInstType * ) { visit_children = false; } |
|---|
| 37 | void premutate( TupleType * ) { visit_children = false; } |
|---|
| 38 | void premutate( VarArgsType * ) { visit_children = false; } |
|---|
| 39 | void premutate( ZeroType * ) { visit_children = false; } |
|---|
| 40 | void premutate( OneType * ) { visit_children = false; } |
|---|
| 41 | |
|---|
| 42 | Type * postmutate( ArrayType *arrayType ); |
|---|
| 43 | Type * postmutate( FunctionType *functionType ); |
|---|
| 44 | Type * postmutate( TypeInstType *aggregateUseType ); |
|---|
| 45 | |
|---|
| 46 | private: |
|---|
| 47 | const TypeEnvironment & env; |
|---|
| 48 | const SymTab::Indexer & indexer; |
|---|
| 49 | }; |
|---|
| 50 | |
|---|
| 51 | void adjustExprType( Type *&type, const TypeEnvironment &env, const SymTab::Indexer &indexer ) { |
|---|
| 52 | PassVisitor<AdjustExprType> adjuster( env, indexer ); |
|---|
| 53 | Type *newType = type->acceptMutator( adjuster ); |
|---|
| 54 | type = newType; |
|---|
| 55 | } |
|---|
| 56 | |
|---|
| 57 | void adjustExprType( Type *& type ) { |
|---|
| 58 | TypeEnvironment env; |
|---|
| 59 | SymTab::Indexer indexer; |
|---|
| 60 | adjustExprType( type, env, indexer ); |
|---|
| 61 | } |
|---|
| 62 | |
|---|
| 63 | AdjustExprType::AdjustExprType( const TypeEnvironment &env, const SymTab::Indexer &indexer ) |
|---|
| 64 | : env( env ), indexer( indexer ) { |
|---|
| 65 | } |
|---|
| 66 | |
|---|
| 67 | Type * AdjustExprType::postmutate( ArrayType * arrayType ) { |
|---|
| 68 | PointerType *pointerType = new PointerType( arrayType->get_qualifiers(), arrayType->base ); |
|---|
| 69 | arrayType->base = nullptr; |
|---|
| 70 | delete arrayType; |
|---|
| 71 | return pointerType; |
|---|
| 72 | } |
|---|
| 73 | |
|---|
| 74 | Type * AdjustExprType::postmutate( FunctionType * functionType ) { |
|---|
| 75 | return new PointerType( Type::Qualifiers(), functionType ); |
|---|
| 76 | } |
|---|
| 77 | |
|---|
| 78 | Type * AdjustExprType::postmutate( TypeInstType * typeInst ) { |
|---|
| 79 | EqvClass eqvClass; |
|---|
| 80 | if ( env.lookup( typeInst->get_name(), eqvClass ) ) { |
|---|
| 81 | if ( eqvClass.data.kind == TypeDecl::Ftype ) { |
|---|
| 82 | PointerType *pointerType = new PointerType( Type::Qualifiers(), typeInst ); |
|---|
| 83 | return pointerType; |
|---|
| 84 | } |
|---|
| 85 | } else if ( NamedTypeDecl *ntDecl = indexer.lookupType( typeInst->get_name() ) ) { |
|---|
| 86 | if ( TypeDecl *tyDecl = dynamic_cast< TypeDecl* >( ntDecl ) ) { |
|---|
| 87 | if ( tyDecl->get_kind() == TypeDecl::Ftype ) { |
|---|
| 88 | PointerType *pointerType = new PointerType( Type::Qualifiers(), typeInst ); |
|---|
| 89 | return pointerType; |
|---|
| 90 | } // if |
|---|
| 91 | } // if |
|---|
| 92 | } // if |
|---|
| 93 | return typeInst; |
|---|
| 94 | } |
|---|
| 95 | } // namespace ResolvExpr |
|---|
| 96 | |
|---|
| 97 | // Local Variables: // |
|---|
| 98 | // tab-width: 4 // |
|---|
| 99 | // mode: c++ // |
|---|
| 100 | // compile-command: "make install" // |
|---|
| 101 | // End: // |
|---|
