Loki/test/Visitor/main.cpp

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////////////////////////////////////////////////////////////////////////////////
// The Loki Library
// Copyright (c) 2006 Peter K<>mmel
// Permission to use, copy, modify, distribute and sell this software for any
// purpose is hereby granted without fee, provided that the above copyright
// notice appear in all copies and that both that copyright notice and this
// permission notice appear in supporting documentation.
// The author makes no representations about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
////////////////////////////////////////////////////////////////////////////////
// $Header:
#include <loki/Visitor.h>
#include <iostream>
class Base : public Loki::BaseVisitable<>
{
public:
LOKI_DEFINE_VISITABLE()
};
class Type1 : public Base
{
public:
LOKI_DEFINE_VISITABLE()
};
class VariableVisitor :
public Loki::BaseVisitor,
//public Loki::Visitor<Base>,
//public Loki::Visitor<Type1>
public Loki::Visitor<LOKI_TYPELIST_2(Base,Type1)>
//public Loki::Visitor<Loki::Seq<Base,Type1>::Type>
{
public:
void Visit(Base&){std::cout << "void Visit(Base&)\n";}
void Visit(Type1&){std::cout << "void Visit(Type1&)\n";}
};
class CBase : public Loki::BaseVisitable<void, Loki::DefaultCatchAll, true>
{
public:
LOKI_DEFINE_CONST_VISITABLE()
};
class CType1 : public CBase
{
public:
LOKI_DEFINE_CONST_VISITABLE()
};
class CVariableVisitor :
public Loki::BaseVisitor,
//public Loki::Visitor<CBase,void,true>,
//public Loki::Visitor<CType1,void,true>
public Loki::Visitor<LOKI_TYPELIST_2(CBase,CType1),void,true>
//public Loki::Visitor<Loki::Seq<CBase,CType1>::Type,void,true>
{
public:
void Visit(const CBase&){std::cout << "void Visit(CBase&)\n";}
void Visit(const CType1&){std::cout << "void Visit(CType1&)\n";}
};
int main()
{
VariableVisitor visitor;
Type1 type1;
Base* dyn = &type1;
dyn->Accept(visitor);
CVariableVisitor cvisitor;
CType1 ctype1;
CBase* cdyn = &ctype1;
cdyn->Accept(cvisitor);
}