[51b7345] | 1 | /* |
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| 2 | * This file is part of the Cforall project |
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| 3 | * |
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| 4 | * $Id: CommonType.cc,v 1.6 2005/08/29 20:14:15 rcbilson Exp $ |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include "typeops.h" |
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| 9 | #include "SynTree/Type.h" |
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| 10 | #include "Unify.h" |
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| 11 | |
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| 12 | |
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| 13 | /// #define DEBUG |
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| 14 | |
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| 15 | namespace ResolvExpr { |
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| 16 | |
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| 17 | class CommonType : public Visitor |
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| 18 | { |
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| 19 | public: |
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| 20 | CommonType( Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars ); |
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| 21 | |
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| 22 | Type *get_result() const { return result; } |
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| 23 | |
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| 24 | private: |
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| 25 | virtual void visit( VoidType *voidType ); |
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| 26 | virtual void visit( BasicType *basicType ); |
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| 27 | virtual void visit( PointerType *pointerType ); |
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| 28 | virtual void visit( ArrayType *arrayType ); |
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| 29 | virtual void visit( FunctionType *functionType ); |
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| 30 | virtual void visit( StructInstType *aggregateUseType ); |
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| 31 | virtual void visit( UnionInstType *aggregateUseType ); |
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| 32 | virtual void visit( EnumInstType *aggregateUseType ); |
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| 33 | virtual void visit( ContextInstType *aggregateUseType ); |
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| 34 | virtual void visit( TypeInstType *aggregateUseType ); |
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| 35 | virtual void visit( TupleType *tupleType ); |
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| 36 | |
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| 37 | template< typename RefType > void handleRefType( RefType *inst, Type *other ); |
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| 38 | |
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| 39 | Type *result; |
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| 40 | Type *type2; // inherited |
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| 41 | bool widenFirst, widenSecond; |
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| 42 | const SymTab::Indexer &indexer; |
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| 43 | TypeEnvironment &env; |
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| 44 | const OpenVarSet &openVars; |
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| 45 | }; |
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| 46 | |
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| 47 | Type * |
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| 48 | commonType( Type *type1, Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars ) |
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| 49 | { |
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| 50 | CommonType visitor( type2, widenFirst, widenSecond, indexer, env, openVars ); |
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| 51 | type1->accept( visitor ); |
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| 52 | Type *result = visitor.get_result(); |
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| 53 | if( !result ) { |
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| 54 | if( widenSecond ) { |
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| 55 | TypeInstType *inst = dynamic_cast< TypeInstType* >( type2 ); |
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| 56 | if( inst ) { |
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| 57 | NamedTypeDecl *nt = indexer.lookupType( inst->get_name() ); |
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| 58 | if( nt ) { |
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| 59 | TypeDecl *type = dynamic_cast< TypeDecl* >( nt ); |
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| 60 | assert( type ); |
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| 61 | if( type->get_base() ) { |
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| 62 | Type::Qualifiers tq1 = type1->get_qualifiers(), tq2 = type2->get_qualifiers(); |
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| 63 | AssertionSet have, need; |
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| 64 | OpenVarSet newOpen( openVars ); |
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| 65 | type1->get_qualifiers() = Type::Qualifiers(); |
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| 66 | type->get_base()->get_qualifiers() = tq1; |
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| 67 | if( unifyExact( type1, type->get_base(), env, have, need, newOpen, indexer ) ) { |
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| 68 | result = type1->clone(); |
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| 69 | result->get_qualifiers() = tq1 + tq2; |
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| 70 | } |
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| 71 | type1->get_qualifiers() = tq1; |
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| 72 | type->get_base()->get_qualifiers() = Type::Qualifiers(); |
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| 73 | } |
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| 74 | } |
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| 75 | } |
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| 76 | } |
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| 77 | } |
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| 78 | #ifdef DEBUG |
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| 79 | std::cout << "============= commonType" << std::endl << "type1 is "; |
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| 80 | type1->print( std::cout ); |
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| 81 | std::cout << " type2 is "; |
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| 82 | type2->print( std::cout ); |
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| 83 | if( result ) { |
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| 84 | std::cout << " common type is "; |
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| 85 | result->print( std::cout ); |
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| 86 | } else { |
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| 87 | std::cout << " no common type"; |
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| 88 | } |
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| 89 | std::cout << std::endl; |
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| 90 | #endif |
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| 91 | return result; |
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| 92 | } |
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| 93 | |
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| 94 | static const BasicType::Kind combinedType[ BasicType::NUMBER_OF_BASIC_TYPES ][ BasicType::NUMBER_OF_BASIC_TYPES ] = |
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| 95 | { |
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| 96 | /* Bool Char SignedChar UnsignedChar ShortSignedInt ShortUnsignedInt SignedInt UnsignedInt LongSignedInt LongUnsignedInt LongLongSignedInt LongLongUnsignedInt Float Double LongDouble FloatComplex DoubleComplex LongDoubleComplex FloatImaginary DoubleImaginary LongDoubleImaginary */ |
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| 97 | /* Bool */ { BasicType::Bool, BasicType::Char, BasicType::SignedChar, BasicType::UnsignedChar, BasicType::ShortSignedInt, BasicType::ShortUnsignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 98 | /* Char */ { BasicType::Char, BasicType::Char, BasicType::UnsignedChar, BasicType::UnsignedChar, BasicType::ShortSignedInt, BasicType::ShortUnsignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 99 | /* SignedChar */ { BasicType::SignedChar, BasicType::UnsignedChar, BasicType::SignedChar, BasicType::UnsignedChar, BasicType::ShortSignedInt, BasicType::ShortUnsignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 100 | /* UnsignedChar */ { BasicType::UnsignedChar, BasicType::UnsignedChar, BasicType::UnsignedChar, BasicType::UnsignedChar, BasicType::ShortSignedInt, BasicType::ShortUnsignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 101 | /* ShortSignedInt */ { BasicType::ShortSignedInt, BasicType::ShortSignedInt, BasicType::ShortSignedInt, BasicType::ShortSignedInt, BasicType::ShortSignedInt, BasicType::ShortUnsignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 102 | /* ShortUnsignedInt */ { BasicType::ShortUnsignedInt, BasicType::ShortUnsignedInt, BasicType::ShortUnsignedInt, BasicType::ShortUnsignedInt, BasicType::ShortUnsignedInt, BasicType::ShortUnsignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 103 | /* SignedInt */ { BasicType::SignedInt, BasicType::SignedInt, BasicType::SignedInt, BasicType::SignedInt, BasicType::SignedInt, BasicType::SignedInt, BasicType::SignedInt, BasicType::UnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 104 | /* UnsignedInt */ { BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::UnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 105 | /* LongSignedInt */ { BasicType::LongSignedInt, BasicType::LongSignedInt, BasicType::LongSignedInt, BasicType::LongSignedInt, BasicType::LongSignedInt, BasicType::LongSignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongSignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 106 | /* LongUnsignedInt */ { BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongUnsignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 107 | /* LongLongSignedInt */ { BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongSignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 108 | /* LongLongUnsignedInt */ { BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 109 | /* Float */ { BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Float, BasicType::Double, BasicType::LongDouble, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 110 | /* Double */ { BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::Double, BasicType::LongDouble, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 111 | /* LongDouble */ { BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDouble, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex }, |
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| 112 | /* FloatComplex */ { BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 113 | /* DoubleComplex */ { BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 114 | /* LongDoubleComplex */ { BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex }, |
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| 115 | /* FloatImaginary */ { BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::FloatImaginary, BasicType::DoubleImaginary, BasicType::LongDoubleImaginary }, |
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| 116 | /* DoubleImaginary */ { BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::DoubleComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex, BasicType::DoubleImaginary, BasicType::DoubleImaginary, BasicType::LongDoubleImaginary }, |
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| 117 | /* LongDoubleImaginary */ { BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleComplex, BasicType::LongDoubleImaginary, BasicType::LongDoubleImaginary, BasicType::LongDoubleImaginary } |
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| 118 | }; |
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| 119 | |
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| 120 | CommonType::CommonType( Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars ) |
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| 121 | : result( 0 ), type2( type2 ), widenFirst( widenFirst ), widenSecond( widenSecond ), indexer( indexer ), env( env ), openVars( openVars ) |
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| 122 | { |
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| 123 | } |
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| 124 | |
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| 125 | void |
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| 126 | CommonType::visit( VoidType *voidType ) |
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| 127 | { |
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| 128 | } |
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| 129 | |
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| 130 | void |
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| 131 | CommonType::visit( BasicType *basicType ) |
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| 132 | { |
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| 133 | if( BasicType *otherBasic = dynamic_cast< BasicType* >( type2 ) ) { |
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| 134 | BasicType::Kind newType = combinedType[ basicType->get_kind() ][ otherBasic->get_kind() ]; |
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| 135 | if( ( ( newType == basicType->get_kind() && basicType->get_qualifiers() >= otherBasic->get_qualifiers() ) || widenFirst ) && ( ( newType == otherBasic->get_kind() && basicType->get_qualifiers() <= otherBasic->get_qualifiers() ) || widenSecond ) ) { |
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| 136 | result = new BasicType( basicType->get_qualifiers() + otherBasic->get_qualifiers(), newType ); |
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| 137 | } |
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| 138 | } |
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| 139 | } |
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| 140 | |
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| 141 | void |
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| 142 | CommonType::visit( PointerType *pointerType ) |
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| 143 | { |
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| 144 | if( PointerType *otherPointer = dynamic_cast< PointerType* >( type2 ) ) { |
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| 145 | if( widenFirst && dynamic_cast< VoidType* >( otherPointer->get_base() ) ) { |
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| 146 | result = otherPointer->clone(); |
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| 147 | result->get_qualifiers() += pointerType->get_qualifiers(); |
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| 148 | } else if( widenSecond && dynamic_cast< VoidType* >( pointerType->get_base() ) ) { |
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| 149 | result = pointerType->clone(); |
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| 150 | result->get_qualifiers() += otherPointer->get_qualifiers(); |
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| 151 | } else if( ( pointerType->get_base()->get_qualifiers() >= otherPointer->get_base()->get_qualifiers() || widenFirst ) |
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| 152 | && ( pointerType->get_base()->get_qualifiers() <= otherPointer->get_base()->get_qualifiers() || widenSecond ) ) { |
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| 153 | Type::Qualifiers tq1 = pointerType->get_base()->get_qualifiers(), tq2 = otherPointer->get_base()->get_qualifiers(); |
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| 154 | pointerType->get_base()->get_qualifiers() = Type::Qualifiers(); |
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| 155 | otherPointer->get_base()->get_qualifiers() = Type::Qualifiers(); |
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| 156 | AssertionSet have, need; |
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| 157 | OpenVarSet newOpen( openVars ); |
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| 158 | if( unifyExact( pointerType->get_base(), otherPointer->get_base(), env, have, need, newOpen, indexer ) ) { |
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| 159 | if( tq1 < tq2 ) { |
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| 160 | result = pointerType->clone(); |
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| 161 | } else { |
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| 162 | result = otherPointer->clone(); |
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| 163 | } |
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| 164 | result->get_qualifiers() = tq1 + tq2; |
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| 165 | } else { |
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| 166 | /// std::cout << "place for ptr-to-type" << std::endl; |
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| 167 | } |
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| 168 | pointerType->get_base()->get_qualifiers() = tq1; |
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| 169 | otherPointer->get_base()->get_qualifiers() = tq2; |
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| 170 | } |
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| 171 | } |
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| 172 | } |
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| 173 | |
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| 174 | void |
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| 175 | CommonType::visit( ArrayType *arrayType ) |
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| 176 | { |
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| 177 | } |
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| 178 | |
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| 179 | void |
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| 180 | CommonType::visit( FunctionType *functionType ) |
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| 181 | { |
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| 182 | } |
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| 183 | |
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| 184 | template< typename RefType > void |
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| 185 | CommonType::handleRefType( RefType *inst, Type *other ) |
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| 186 | { |
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| 187 | } |
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| 188 | |
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| 189 | void |
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| 190 | CommonType::visit( StructInstType *aggregateUseType ) |
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| 191 | { |
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| 192 | } |
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| 193 | |
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| 194 | void |
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| 195 | CommonType::visit( UnionInstType *aggregateUseType ) |
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| 196 | { |
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| 197 | } |
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| 198 | |
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| 199 | void |
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| 200 | CommonType::visit( EnumInstType *aggregateUseType ) |
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| 201 | { |
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| 202 | } |
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| 203 | |
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| 204 | void |
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| 205 | CommonType::visit( ContextInstType *aggregateUseType ) |
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| 206 | { |
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| 207 | } |
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| 208 | |
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| 209 | void |
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| 210 | CommonType::visit( TypeInstType *inst ) |
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| 211 | { |
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| 212 | if( widenFirst ) { |
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| 213 | NamedTypeDecl *nt = indexer.lookupType( inst->get_name() ); |
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| 214 | if( nt ) { |
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| 215 | TypeDecl *type = dynamic_cast< TypeDecl* >( nt ); |
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| 216 | assert( type ); |
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| 217 | if( type->get_base() ) { |
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| 218 | Type::Qualifiers tq1 = inst->get_qualifiers(), tq2 = type2->get_qualifiers(); |
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| 219 | AssertionSet have, need; |
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| 220 | OpenVarSet newOpen( openVars ); |
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| 221 | type2->get_qualifiers() = Type::Qualifiers(); |
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| 222 | type->get_base()->get_qualifiers() = tq1; |
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| 223 | if( unifyExact( type->get_base(), type2, env, have, need, newOpen, indexer ) ) { |
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| 224 | result = type2->clone(); |
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| 225 | result->get_qualifiers() = tq1 + tq2; |
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| 226 | } |
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| 227 | type2->get_qualifiers() = tq2; |
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| 228 | type->get_base()->get_qualifiers() = Type::Qualifiers(); |
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| 229 | } |
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| 230 | } |
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| 231 | } |
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| 232 | } |
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| 233 | |
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| 234 | void |
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| 235 | CommonType::visit( TupleType *tupleType ) |
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| 236 | { |
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| 237 | } |
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| 238 | |
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| 239 | } // namespace ResolvExpr |
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