| 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 | #include "SynTree/Type.h"
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| 18 | #include "SynTree/Declaration.h"
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| 19 | #include "SynTree/Visitor.h"
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| 20 |
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| 21 | #include "ScrubTyVars.h"
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| 22 |
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| 23 | namespace GenPoly {
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| 24 | class FindFunction : public Mutator {
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| 25 | public:
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| 26 | FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate );
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| 27 |
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| 28 | virtual Type *mutate( FunctionType *functionType );
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| 29 | virtual Type *mutate( PointerType *pointerType );
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| 30 | private:
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| 31 | void handleForall( const Type::ForallList &forall );
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| 32 |
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| 33 | std::list< FunctionType* > &functions;
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| 34 | TyVarMap tyVars;
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| 35 | bool replaceMode;
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| 36 | FindFunctionPredicate predicate;
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| 37 | };
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| 38 |
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| 39 | void findFunction( Type *type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) {
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| 40 | FindFunction finder( functions, tyVars, false, predicate );
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| 41 | type->acceptMutator( finder );
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| 42 | }
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| 43 |
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| 44 | void findAndReplaceFunction( Type *&type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) {
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| 45 | FindFunction finder( functions, tyVars, true, predicate );
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| 46 | type = type->acceptMutator( finder );
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| 47 | }
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| 48 |
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| 49 | FindFunction::FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate )
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| 50 | : functions( functions ), tyVars( tyVars ), replaceMode( replaceMode ), predicate( predicate ) {
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| 51 | }
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| 52 |
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| 53 | void FindFunction::handleForall( const Type::ForallList &forall ) {
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| 54 | for ( Type::ForallList::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->first );
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| 58 | } // if
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| 59 | } // for
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| 60 | }
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| 61 |
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| 62 | Type * FindFunction::mutate( FunctionType *functionType ) {
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| 63 | tyVars.beginScope();
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| 64 | handleForall( functionType->get_forall() );
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| 65 | mutateAll( functionType->get_returnVals(), *this );
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| 66 | Type *ret = functionType;
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| 67 | if ( predicate( functionType, tyVars ) ) {
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| 68 | functions.push_back( functionType );
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| 69 | if ( replaceMode ) {
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| 70 | // replace type parameters in function type with void*
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| 71 | ret = ScrubTyVars::scrub( functionType->clone(), tyVars );
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| 72 | } // if
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| 73 | } // if
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| 74 | tyVars.endScope();
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| 75 | return ret;
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| 76 | }
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| 77 |
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| 78 | Type * FindFunction::mutate( PointerType *pointerType ) {
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| 79 | tyVars.beginScope();
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| 80 | handleForall( pointerType->get_forall() );
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| 81 | Type *ret = Mutator::mutate( pointerType );
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| 82 | tyVars.endScope();
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| 83 | return ret;
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| 84 | }
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| 85 | } // namespace GenPoly
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| 86 |
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| 87 | // Local Variables: //
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| 88 | // tab-width: 4 //
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| 89 | // mode: c++ //
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| 90 | // compile-command: "make install" //
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| 91 | // End: //
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