[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: FindFunction.cc,v 1.5 2005/08/29 20:14:13 rcbilson Exp $ |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include "FindFunction.h" |
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| 9 | #include "SynTree/Type.h" |
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| 10 | #include "SynTree/Declaration.h" |
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| 11 | #include "SynTree/Visitor.h" |
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| 12 | |
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| 13 | namespace GenPoly { |
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| 14 | |
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| 15 | class FindFunction : public Mutator |
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| 16 | { |
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| 17 | public: |
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| 18 | FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate ); |
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| 19 | |
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| 20 | virtual Type *mutate( FunctionType *functionType ); |
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| 21 | virtual Type *mutate( PointerType *pointerType ); |
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| 22 | |
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| 23 | private: |
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| 24 | void handleForall( const std::list< TypeDecl* > &forall ); |
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| 25 | |
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| 26 | std::list< FunctionType* > &functions; |
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| 27 | TyVarMap tyVars; |
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| 28 | bool replaceMode; |
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| 29 | FindFunctionPredicate predicate; |
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| 30 | }; |
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| 31 | |
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| 32 | void |
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| 33 | findFunction( Type *type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) |
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| 34 | { |
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| 35 | FindFunction finder( functions, tyVars, false, predicate ); |
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| 36 | type->acceptMutator( finder ); |
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| 37 | } |
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| 38 | |
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| 39 | void |
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| 40 | findAndReplaceFunction( Type *&type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) |
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| 41 | { |
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| 42 | FindFunction finder( functions, tyVars, true, predicate ); |
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| 43 | type = type->acceptMutator( finder ); |
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| 44 | } |
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| 45 | |
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| 46 | FindFunction::FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate ) |
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| 47 | : functions( functions ), tyVars( tyVars ), replaceMode( replaceMode ), predicate( predicate ) |
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| 48 | { |
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| 49 | } |
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| 50 | |
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| 51 | void |
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| 52 | FindFunction::handleForall( const std::list< TypeDecl* > &forall ) |
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| 53 | { |
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[a32b204] | 54 | for ( std::list< TypeDecl* >::const_iterator i = forall.begin(); i != forall.end(); ++i ) { |
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[51b7345] | 55 | TyVarMap::iterator var = tyVars.find( (*i)->get_name() ); |
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[a32b204] | 56 | if ( var != tyVars.end() ) { |
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[51b7345] | 57 | tyVars.erase( var ); |
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| 58 | } |
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| 59 | } |
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| 60 | } |
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| 61 | |
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| 62 | Type* |
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| 63 | FindFunction::mutate( FunctionType *functionType ) |
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| 64 | { |
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| 65 | TyVarMap oldTyVars = tyVars; |
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| 66 | handleForall( functionType->get_forall() ); |
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| 67 | mutateAll( functionType->get_returnVals(), *this ); |
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| 68 | Type *ret = functionType; |
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[a32b204] | 69 | if ( predicate( functionType, tyVars ) ) { |
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[51b7345] | 70 | functions.push_back( functionType ); |
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[a32b204] | 71 | if ( replaceMode ) { |
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[51b7345] | 72 | ret = new FunctionType( Type::Qualifiers(), true ); |
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| 73 | } |
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| 74 | } |
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| 75 | tyVars = oldTyVars; |
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| 76 | return ret; |
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| 77 | } |
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| 78 | |
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| 79 | Type * |
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| 80 | FindFunction::mutate( PointerType *pointerType ) |
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| 81 | { |
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| 82 | TyVarMap oldTyVars = tyVars; |
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| 83 | handleForall( pointerType->get_forall() ); |
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| 84 | Type *ret = Mutator::mutate( pointerType ); |
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| 85 | tyVars = oldTyVars; |
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| 86 | return ret; |
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| 87 | } |
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| 88 | |
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| 89 | } // namespace GenPoly |
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