MemRefExprVisitor.hpp

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#ifndef MemRefExprVisitor_H
#define MemRefExprVisitor_H

#include <OpenAnalysis/MemRefExpr/MemRefExpr.hpp>

namespace OA {

//--------------------------------------------------------------------
class MemRefExprVisitor {
protected:
  MemRefExprVisitor() {}
public:
  virtual ~MemRefExprVisitor() {}

  //---------------------------------------
  // methods for each MemRefExpr subclasses
  //---------------------------------------
  
  virtual void visitNamedRef(NamedRef& ref) = 0;
  virtual void visitUnnamedRef(UnnamedRef& ref) = 0;
  virtual void visitUnknownRef(UnknownRef& ref) = 0;

  // should never have a RefOp instance and will never have more
  // direct subclasses for RefOp
  //virtual void visitRefOp(RefOp& ref) = 0;

  virtual void visitAddressOf(AddressOf& ref) = 0;
  virtual void visitDeref(Deref& ref) = 0;

  // default SubSetRef base class so that visitors can handle 
  // SubSetRef sub-classes added later in a generic fasion
  // and direct instances of SubSetRef
  virtual void visitSubSetRef(SubSetRef& ref) = 0;

  // each subclass of SubSetRef should call visitSubSetRef
  // as default
  virtual void visitIdxAccess(IdxAccess& ref) 
    { visitSubSetRef(ref); }
  virtual void visitIdxExprAccess(IdxExprAccess& ref) 
    { visitSubSetRef(ref); }
  virtual void visitFieldAccess(FieldAccess& ref) 
    { visitSubSetRef(ref); }
};


} // end of OA namespace

#endif