source: src/ResolvExpr/PolyCost.cc@ 342146e1

//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// PolyCost.cc --
//
// Author           : Richard C. Bilson
// Created On       : Sun May 17 09:50:12 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Sun May 17 09:52:02 2015
// Update Count     : 3
//

#include "Common/PassVisitor.h"
#include "SymTab/Indexer.h"   // for Indexer
#include "SynTree/Type.h"     // for TypeInstType, Type
#include "TypeEnvironment.h"  // for EqvClass, TypeEnvironment

namespace ResolvExpr {
        struct PolyCost {
                PolyCost( const TypeEnvironment &env, const SymTab::Indexer &indexer );

                void previsit( TypeInstType * aggregateUseType );
                int result;
                const TypeEnvironment &tenv;
                const SymTab::Indexer &indexer;
        };

        int polyCost( Type *type, const TypeEnvironment & env, const SymTab::Indexer &indexer ) {
                PassVisitor<PolyCost> coster( env, indexer );
                type->accept( coster );
                return coster.pass.result;
        }

        PolyCost::PolyCost( const TypeEnvironment & env, const SymTab::Indexer & indexer ) : result( 0 ), tenv( env ), indexer( indexer ) {
        }

        void PolyCost::previsit(TypeInstType * typeInst) {
                if ( const EqvClass *eqvClass = tenv.lookup( typeInst->name ) ) {
                        if ( eqvClass->type ) {
                                if ( TypeInstType * otherTypeInst = dynamic_cast< TypeInstType* >( eqvClass->type ) ) {
                                        if ( indexer.lookupType( otherTypeInst->name ) ) {
                                                // bound to opaque type
                                                result += 1;
                                        } // if
                                } else {
                                        // bound to concrete type
                                        result += 1;
                                } // if
                        } // if
                } // if
        }

} // namespace ResolvExpr

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make install" //
// End: //