| 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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| 54 | for( std::list< TypeDecl* >::const_iterator i = forall.begin(); i != forall.end(); ++i ) {
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| 55 | TyVarMap::iterator var = tyVars.find( (*i)->get_name() );
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| 56 | if( var != tyVars.end() ) {
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| 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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| 69 | if( predicate( functionType, tyVars ) ) {
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| 70 | functions.push_back( functionType );
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| 71 | if( replaceMode ) {
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| 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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