📄 visitor.h
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// -*-c++-*-/*************************************************************************** visitor.h Classes for visiting and type extractiong ------------------- begin : 20-FEB-2002 copyright : (C) 2002 by The RoboCup Soccer Server Maintenance Group. email : sserver-admin@lists.sourceforge.net ***************************************************************************//*************************************************************************** * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU LGPL as published by the Free Software * * Foundation; either version 2 of the License, or (at your option) any * * later version. * * * ***************************************************************************/#if 0#ifndef _VISITOR_H_#define _VISITOR_H_#include "tuple.h"namespace rcss{ namespace util { template< class X > class Visitor; template< class H, class T > class Visitor< TypeList< H, T > > : private Visitor< T > { private: virtual void visit( H h ) = 0; protected: ~Visitor() {} public: Visitor() {} template< class X > inline void startVisit( X x ) { Visitor< T >::startVisit( x ); } inline void startVisit( H h ) { visit( h ); } }; template< class H > class Visitor< TypeList< H, NullType > > { private: virtual void visit( H h ) = 0; protected: ~Visitor() {} public: Visitor() {} inline void startVisit( H h ) { visit( h ); } }; template< typename T1 = NullType, typename T2 = NullType2, typename T3 = NullType3, typename T4 = NullType4, typename T5 = NullType5, typename T6 = NullType6, typename T7 = NullType7, typename T8 = NullType8, typename T9 = NullType9, typename T10 = NullType10 > class Visitor10 { private: virtual void visit( T1 ) {} virtual void visit( T2 ) {} virtual void visit( T3 ) {} virtual void visit( T4 ) {} virtual void visit( T5 ) {} virtual void visit( T6 ) {} virtual void visit( T7 ) {} virtual void visit( T8 ) {} virtual void visit( T9 ) {} virtual void visit( T10 ) {} protected: virtual ~Visitor10() {} public: Visitor10() {} template< class X > inline void startVisit( X x ) { visit( x ); } }; template< typename T1 = NullType, typename T2 = NullType2, typename T3 = NullType3, typename T4 = NullType4, typename T5 = NullType5, typename T6 = NullType6, typename T7 = NullType7, typename T8 = NullType8, typename T9 = NullType9, typename T10 = NullType10, typename T11 = NullType11, typename T12 = NullType12, typename T13 = NullType13, typename T14 = NullType14, typename T15 = NullType15, typename T16 = NullType16, typename T17 = NullType17, typename T18 = NullType18, typename T19 = NullType19, typename T20 = NullType20 > class Visitor20 { private: virtual void visit( T1 ) {} virtual void visit( T2 ) {} virtual void visit( T3 ) {} virtual void visit( T4 ) {} virtual void visit( T5 ) {} virtual void visit( T6 ) {} virtual void visit( T7 ) {} virtual void visit( T8 ) {} virtual void visit( T9 ) {} virtual void visit( T10 ) {} virtual void visit( T11 ) {} virtual void visit( T12 ) {} virtual void visit( T13 ) {} virtual void visit( T14 ) {} virtual void visit( T15 ) {} virtual void visit( T16 ) {} virtual void visit( T17 ) {} virtual void visit( T18 ) {} virtual void visit( T19 ) {} virtual void visit( T20 ) {} protected: virtual ~Visitor20() {} public: Visitor20() {} template< class X > inline void startVisit( X x ) { visit( x ); } }; template< class TList > class TypeExtractor : public Visitor< TList > { private: Tuple< TList > M_holder; protected: template< class X > inline void setValue( const X& x ) { M_holder = x; } ~TypeExtractor() {} public: TypeExtractor() {} template< class X > inline bool isTypeOf() const { return M_holder.template isTypeOf< X >(); } template< class X > inline bool isTypeOf( X* x ) const { return M_holder.isTypeOf( x ); } template< class X > inline X& get() { return M_holder.template get< X >(); } template< class X > inline X& get( X* x ) { return M_holder.get( x ); } template< class X > inline const X& get() const { return M_holder.template get< X >(); } template< class X > inline const X& get( X* x ) const { return M_holder.get( x ); } }; template< typename T1 = NullType, typename T2 = NullType2, typename T3 = NullType3, typename T4 = NullType4, typename T5 = NullType5, typename T6 = NullType6, typename T7 = NullType7, typename T8 = NullType8, typename T9 = NullType9, typename T10 = NullType10 > class TypeExtractor10 : public Visitor10< T1, T2, T3, T4, T5, T6, T7, T8, T9, T10 > { private: Tuple10< T1, T2, T3, T4, T5, T6, T7, T8, T9, T10 > M_holder; protected: template< class X > inline void setValue( const X& x ) { M_holder = x; } virtual ~TypeExtractor10() {} public: TypeExtractor10() {} template< class X > inline bool isTypeOf() const { return M_holder.template isTypeOf< X >(); } template< class X > inline bool isTypeOf( X* x ) const { return M_holder.isTypeOf( x ); } template< class X > inline X& get() { return M_holder.template get< X >(); } template< class X > inline X& get( X* x ) { return M_holder.get( x ); } template< class X > inline const X& get() const { return M_holder.template get< X >(); } template< class X > inline const X& get( X* x ) const { return M_holder.get( x ); } }; template< typename T1 = NullType, typename T2 = NullType2, typename T3 = NullType3, typename T4 = NullType4, typename T5 = NullType5, typename T6 = NullType6, typename T7 = NullType7, typename T8 = NullType8, typename T9 = NullType9, typename T10 = NullType10, typename T11 = NullType11, typename T12 = NullType12, typename T13 = NullType13, typename T14 = NullType14, typename T15 = NullType15, typename T16 = NullType16, typename T17 = NullType17, typename T18 = NullType18, typename T19 = NullType19, typename T20 = NullType20 > class TypeExtractor20 : public Visitor20< T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20 > { private: Tuple20< T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20 > M_holder; protected: template< class X > inline void setValue( const X& x ) { M_holder = x; } virtual ~TypeExtractor20() {} public: TypeExtractor20() {} template< class X > inline bool isTypeOf() const { return M_holder.template isTypeOf< X >(); } template< class X > inline bool isTypeOf( X* x ) const { return M_holder.isTypeOf( x ); } template< class X > inline X& get() { return M_holder.template get< X >(); } template< class X > inline X& get( X* x ) { return M_holder.get( x ); } template< class X > inline const X& get() const { return M_holder.template get< X >(); } template< class X > inline const X& get( X* x ) const { return M_holder.get( x ); } }; }}#endif#endif⌨️ 快捷键说明
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