| 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 | // FindFunction.cc -- |
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| 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Mon May 18 07:44:20 2015 |
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| 11 | // Last Modified By : Rob Schluntz |
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| 12 | // Last Modified On : Fri Feb 05 12:22:20 2016 |
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| 13 | // Update Count : 6 |
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| 14 | // |
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| 15 | |
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| 16 | #include "FindFunction.h" |
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| 17 | |
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| 18 | #include <utility> // for pair |
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| 19 | |
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| 20 | #include "Common/SemanticError.h" // for SemanticError |
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| 21 | #include "GenPoly/ErasableScopedMap.h" // for ErasableScopedMap<>::iterator |
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| 22 | #include "GenPoly/GenPoly.h" // for TyVarMap |
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| 23 | #include "ScrubTyVars.h" // for ScrubTyVars |
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| 24 | #include "SynTree/Declaration.h" // for DeclarationWithType, TypeDecl |
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| 25 | #include "SynTree/Mutator.h" // for Mutator, mutateAll |
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| 26 | #include "SynTree/Type.h" // for FunctionType, Type, Type::For... |
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| 27 | |
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| 28 | namespace GenPoly { |
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| 29 | class FindFunction : public Mutator { |
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| 30 | public: |
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| 31 | FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate ); |
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| 32 | |
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| 33 | virtual Type *mutate( FunctionType *functionType ); |
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| 34 | virtual Type *mutate( PointerType *pointerType ); |
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| 35 | private: |
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| 36 | void handleForall( const Type::ForallList &forall ); |
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| 37 | |
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| 38 | std::list< FunctionType* > &functions; |
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| 39 | TyVarMap tyVars; |
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| 40 | bool replaceMode; |
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| 41 | FindFunctionPredicate predicate; |
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| 42 | }; |
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| 43 | |
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| 44 | void findFunction( Type *type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) { |
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| 45 | FindFunction finder( functions, tyVars, false, predicate ); |
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| 46 | type->acceptMutator( finder ); |
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| 47 | } |
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| 48 | |
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| 49 | void findAndReplaceFunction( Type *&type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) { |
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| 50 | FindFunction finder( functions, tyVars, true, predicate ); |
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| 51 | type = type->acceptMutator( finder ); |
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| 52 | } |
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| 53 | |
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| 54 | FindFunction::FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate ) |
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| 55 | : functions( functions ), tyVars( tyVars ), replaceMode( replaceMode ), predicate( predicate ) { |
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| 56 | } |
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| 57 | |
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| 58 | void FindFunction::handleForall( const Type::ForallList &forall ) { |
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| 59 | for ( Type::ForallList::const_iterator i = forall.begin(); i != forall.end(); ++i ) { |
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| 60 | TyVarMap::iterator var = tyVars.find( (*i)->get_name() ); |
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| 61 | if ( var != tyVars.end() ) { |
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| 62 | tyVars.erase( var->first ); |
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| 63 | } // if |
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| 64 | } // for |
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| 65 | } |
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| 66 | |
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| 67 | Type * FindFunction::mutate( FunctionType *functionType ) { |
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| 68 | tyVars.beginScope(); |
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| 69 | handleForall( functionType->get_forall() ); |
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| 70 | mutateAll( functionType->get_returnVals(), *this ); |
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| 71 | Type *ret = functionType; |
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| 72 | if ( predicate( functionType, tyVars ) ) { |
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| 73 | functions.push_back( functionType ); |
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| 74 | if ( replaceMode ) { |
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| 75 | // replace type parameters in function type with void* |
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| 76 | ret = ScrubTyVars::scrub( functionType->clone(), tyVars ); |
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| 77 | } // if |
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| 78 | } // if |
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| 79 | tyVars.endScope(); |
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| 80 | return ret; |
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| 81 | } |
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| 82 | |
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| 83 | Type * FindFunction::mutate( PointerType *pointerType ) { |
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| 84 | tyVars.beginScope(); |
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| 85 | handleForall( pointerType->get_forall() ); |
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| 86 | Type *ret = Mutator::mutate( pointerType ); |
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| 87 | tyVars.endScope(); |
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| 88 | return ret; |
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| 89 | } |
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| 90 | } // namespace GenPoly |
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| 91 | |
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| 92 | // Local Variables: // |
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| 93 | // tab-width: 4 // |
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| 94 | // mode: c++ // |
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| 95 | // compile-command: "make install" // |
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| 96 | // End: // |
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