[a32b204] | 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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[906e24d] | 7 | // typeops.h -- |
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[a32b204] | 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sun May 17 07:28:22 2015 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Sun May 17 07:33:11 2015 |
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| 13 | // Update Count : 2 |
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| 14 | // |
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[51b7345] | 15 | |
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| 16 | #ifndef TYPEOPS_H |
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| 17 | #define TYPEOPS_H |
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| 18 | |
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| 19 | #include "SynTree/SynTree.h" |
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| 20 | #include "SynTree/Type.h" |
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| 21 | #include "SymTab/Indexer.h" |
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| 22 | #include "Cost.h" |
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| 23 | #include "TypeEnvironment.h" |
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| 24 | |
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| 25 | namespace ResolvExpr { |
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[a32b204] | 26 | // combos: takes a list of sets and returns a set of lists representing every possible way of forming a list by |
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| 27 | // picking one element out of each set |
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| 28 | template< typename InputIterator, typename OutputIterator > |
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| 29 | void combos( InputIterator begin, InputIterator end, OutputIterator out ) { |
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| 30 | typedef typename InputIterator::value_type SetType; |
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| 31 | typedef typename std::list< typename SetType::value_type > ListType; |
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[906e24d] | 32 | |
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[a32b204] | 33 | if ( begin == end ) { |
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| 34 | *out++ = ListType(); |
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| 35 | return; |
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| 36 | } // if |
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[906e24d] | 37 | |
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[a32b204] | 38 | InputIterator current = begin; |
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| 39 | begin++; |
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[51b7345] | 40 | |
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[a32b204] | 41 | std::list< ListType > recursiveResult; |
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| 42 | combos( begin, end, back_inserter( recursiveResult ) ); |
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[906e24d] | 43 | |
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[a32b204] | 44 | for ( typename std::list< ListType >::const_iterator i = recursiveResult.begin(); i != recursiveResult.end(); ++i ) { |
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| 45 | for ( typename ListType::const_iterator j = current->begin(); j != current->end(); ++j ) { |
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| 46 | ListType result; |
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| 47 | std::back_insert_iterator< ListType > inserter = back_inserter( result ); |
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| 48 | *inserter++ = *j; |
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| 49 | std::copy( i->begin(), i->end(), inserter ); |
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| 50 | *out++ = result; |
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| 51 | } // for |
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| 52 | } // for |
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| 53 | } |
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[906e24d] | 54 | |
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[a32b204] | 55 | // in AdjustExprType.cc |
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[2de162da] | 56 | /// Replaces array types with the equivalent pointer, and function types with a pointer-to-function |
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[a32b204] | 57 | void adjustExprType( Type *&type, const TypeEnvironment &env, const SymTab::Indexer &indexer ); |
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| 58 | |
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| 59 | template< typename ForwardIterator > |
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| 60 | void adjustExprTypeList( ForwardIterator begin, ForwardIterator end, const TypeEnvironment &env, const SymTab::Indexer &indexer ) { |
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| 61 | while ( begin != end ) { |
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| 62 | adjustExprType( *begin++, env, indexer ); |
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| 63 | } // while |
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| 64 | } |
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| 65 | |
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| 66 | // in CastCost.cc |
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| 67 | Cost castCost( Type *src, Type *dest, const SymTab::Indexer &indexer, const TypeEnvironment &env ); |
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| 68 | |
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| 69 | template< typename SrcIterator, typename DestIterator > |
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| 70 | Cost castCostList( SrcIterator srcBegin, SrcIterator srcEnd, DestIterator destBegin, DestIterator destEnd, const SymTab::Indexer &indexer, const TypeEnvironment &env ) { |
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| 71 | Cost ret; |
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| 72 | if ( destBegin == destEnd ) { |
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| 73 | if ( srcBegin == srcEnd ) { |
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| 74 | return Cost::zero; |
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| 75 | } else { |
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| 76 | return Cost( 0, 0, 1 ); |
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| 77 | } // if |
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| 78 | } // if |
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| 79 | while ( srcBegin != srcEnd && destBegin != destEnd ) { |
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| 80 | Cost thisCost = castCost( *srcBegin++, *destBegin++, indexer, env ); |
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| 81 | if ( thisCost == Cost::infinity ) { |
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| 82 | return Cost::infinity; |
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| 83 | } // if |
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| 84 | ret += thisCost; |
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| 85 | } // while |
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| 86 | if ( srcBegin == srcEnd && destBegin == destEnd ) { |
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| 87 | return ret; |
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| 88 | } else { |
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| 89 | return Cost::infinity; |
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| 90 | } // if |
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| 91 | } |
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| 92 | |
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| 93 | // in ConversionCost.cc |
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| 94 | Cost conversionCost( Type *src, Type *dest, const SymTab::Indexer &indexer, const TypeEnvironment &env ); |
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| 95 | |
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| 96 | template< typename SrcIterator, typename DestIterator > |
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| 97 | Cost conversionCostList( SrcIterator srcBegin, SrcIterator srcEnd, DestIterator destBegin, DestIterator destEnd, const SymTab::Indexer &indexer, const TypeEnvironment &env ) { |
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| 98 | Cost ret; |
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| 99 | while ( srcBegin != srcEnd && destBegin != destEnd ) { |
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| 100 | Cost thisCost = conversionCost( *srcBegin++, *destBegin++, indexer, env ); |
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| 101 | if ( thisCost == Cost::infinity ) { |
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| 102 | return Cost::infinity; |
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| 103 | } // if |
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| 104 | ret += thisCost; |
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| 105 | } // while |
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| 106 | if ( srcBegin == srcEnd && destBegin == destEnd ) { |
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| 107 | return ret; |
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| 108 | } else { |
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| 109 | return Cost::infinity; |
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| 110 | } // if |
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| 111 | } |
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| 112 | |
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| 113 | // in PtrsAssignable.cc |
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| 114 | int ptrsAssignable( Type *src, Type *dest, const TypeEnvironment &env ); |
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| 115 | |
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| 116 | // in PtrsCastable.cc |
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| 117 | int ptrsCastable( Type *src, Type *dest, const TypeEnvironment &env, const SymTab::Indexer &indexer ); |
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| 118 | |
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| 119 | // in Unify.cc |
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[d7dc824] | 120 | bool isFtype( Type *type ); |
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[a32b204] | 121 | bool typesCompatible( Type *, Type *, const SymTab::Indexer &indexer, const TypeEnvironment &env ); |
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| 122 | bool typesCompatibleIgnoreQualifiers( Type *, Type *, const SymTab::Indexer &indexer, const TypeEnvironment &env ); |
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| 123 | |
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| 124 | inline bool typesCompatible( Type *t1, Type *t2, const SymTab::Indexer &indexer ) { |
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| 125 | TypeEnvironment env; |
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| 126 | return typesCompatible( t1, t2, indexer, env ); |
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| 127 | } |
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| 128 | |
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| 129 | inline bool typesCompatibleIgnoreQualifiers( Type *t1, Type *t2, const SymTab::Indexer &indexer ) { |
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| 130 | TypeEnvironment env; |
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| 131 | return typesCompatibleIgnoreQualifiers( t1, t2, indexer, env ); |
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| 132 | } |
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| 133 | |
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[906e24d] | 134 | /// creates the type represented by the list of returnVals in a FunctionType. The caller owns the return value. |
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| 135 | Type * extractResultType( FunctionType * functionType ); |
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| 136 | |
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[a32b204] | 137 | // in CommonType.cc |
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| 138 | Type *commonType( Type *type1, Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars ); |
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| 139 | |
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| 140 | // in PolyCost.cc |
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| 141 | int polyCost( Type *type, const TypeEnvironment &env, const SymTab::Indexer &indexer ); |
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| 142 | |
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| 143 | // in Occurs.cc |
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| 144 | bool occurs( Type *type, std::string varName, const TypeEnvironment &env ); |
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[906e24d] | 145 | |
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| 146 | // flatten tuple type into list of types |
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| 147 | template< typename OutputIterator > |
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| 148 | void flatten( Type * type, OutputIterator out ) { |
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| 149 | if ( TupleType * tupleType = dynamic_cast< TupleType * >( type ) ) { |
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| 150 | for ( Type * t : tupleType->get_types() ) { |
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| 151 | flatten( t, out ); |
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| 152 | } |
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| 153 | } else { |
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[6c3a988f] | 154 | *out++ = type->clone(); |
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[906e24d] | 155 | } |
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| 156 | } |
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[51b7345] | 157 | } // namespace ResolvExpr |
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| 158 | |
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[a32b204] | 159 | #endif // TYPEOPS_H |
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| 160 | |
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| 161 | // Local Variables: // |
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| 162 | // tab-width: 4 // |
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| 163 | // mode: c++ // |
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| 164 | // compile-command: "make install" // |
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| 165 | // End: // |
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