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caller.h

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/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
 * See: http://www.inspircd.org/wiki/index.php/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

#ifndef __CALLER__H__
#define __CALLER__H__

template <typename ReturnType> class CoreExport HandlerBase0
{
 public:
        virtual ReturnType Call() = 0;
        virtual ~HandlerBase0() { }
};

template <typename ReturnType, typename Param1> class CoreExport HandlerBase1
{
 public:
        virtual ReturnType Call(Param1) = 0;
        virtual ~HandlerBase1() { }
};

template <typename ReturnType, typename Param1, typename Param2> class CoreExport HandlerBase2
{
 public:
        virtual ReturnType Call(Param1, Param2) = 0;
        virtual ~HandlerBase2() { }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3> class CoreExport HandlerBase3
{
 public:
        virtual ReturnType Call(Param1, Param2, Param3) = 0;
        virtual ~HandlerBase3() { }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4> class CoreExport HandlerBase4
{
 public:
        virtual ReturnType Call(Param1, Param2, Param3, Param4) = 0;
        virtual ~HandlerBase4() { }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5> class CoreExport HandlerBase5
{
 public:
        virtual ReturnType Call(Param1, Param2, Param3, Param4, Param5) = 0;
        virtual ~HandlerBase5() { }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6> class CoreExport HandlerBase6
{
 public:
        virtual ReturnType Call(Param1, Param2, Param3, Param4, Param5, Param6) = 0;
        virtual ~HandlerBase6() { }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6, typename Param7> class CoreExport HandlerBase7
{
 public:
        virtual ReturnType Call(Param1, Param2, Param3, Param4, Param5, Param6, Param7) = 0;
        virtual ~HandlerBase7() { }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6, typename Param7, typename Param8> class CoreExport HandlerBase8
{
 public:
        virtual ReturnType Call(Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8) = 0;
        virtual ~HandlerBase8() { }
};

template <typename HandlerType> class CoreExport caller
{
 public:
        HandlerType* target;

        caller(HandlerType* initial)
        : target(initial)
        { }

        virtual ~caller() { }

        caller& operator=(HandlerType* newtarget)
        {
                target = newtarget;
                return *this;
        }
};

template <typename ReturnType> class CoreExport caller0 : public caller< HandlerBase0<ReturnType> >
{
 public:
        caller0(HandlerBase0<ReturnType>* initial)
        : caller< HandlerBase0<ReturnType> >::caller(initial)
        { }

        virtual ReturnType operator() ()
        {
                return this->target->Call();
        }
};

template <typename ReturnType, typename Param1> class CoreExport caller1 : public caller< HandlerBase1<ReturnType, Param1> >
{
 public:
        caller1(HandlerBase1<ReturnType, Param1>* initial)
        : caller< HandlerBase1<ReturnType, Param1> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1)
        {
                return this->target->Call(param1);
        }
};

template <typename ReturnType, typename Param1, typename Param2> class CoreExport caller2 : public caller< HandlerBase2<ReturnType, Param1, Param2> >
{
 public:
        caller2(HandlerBase2<ReturnType, Param1, Param2>* initial)
        : caller< HandlerBase2<ReturnType, Param1, Param2> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2)
        {
                return this->target->Call(param1, param2);
        }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3> class CoreExport caller3 : public caller< HandlerBase3<ReturnType, Param1, Param2, Param3> >
{
 public:
        caller3(HandlerBase3<ReturnType, Param1, Param2, Param3>* initial)
        : caller< HandlerBase3<ReturnType, Param1, Param2, Param3> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2, Param3 param3)
        {
                return this->target->Call(param1, param2, param3);
        }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4> class CoreExport caller4 : public caller< HandlerBase4<ReturnType, Param1, Param2, Param3, Param4> >
{
 public:
        caller4(HandlerBase4<ReturnType, Param1, Param2, Param3, Param4>* initial)
        : caller< HandlerBase4<ReturnType, Param1, Param2, Param3, Param4> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2, Param3 param3, Param4 param4)
        {
                return this->target->Call(param1, param2, param3, param4);
        }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5> class CoreExport caller5 : public caller< HandlerBase5<ReturnType, Param1, Param2, Param3, Param4, Param5> >
{
 public:
        caller5(HandlerBase5<ReturnType, Param1, Param2, Param3, Param4, Param5>* initial)
        : caller< HandlerBase5<ReturnType, Param1, Param2, Param3, Param4, Param5> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2, Param3 param3, Param4 param4, Param5 param5)
        {
                return this->target->Call(param1, param2, param3, param4, param5);
        }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6> class CoreExport caller6 : public caller< HandlerBase6<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6> >
{
 public:
        caller6(HandlerBase6<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6>* initial)
        : caller< HandlerBase6<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2, Param3 param3, Param4 param4, Param5 param5, Param6 param6)
        {
                return this->target->Call(param1, param2, param3, param4, param5, param6);
        }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6, typename Param7> class CoreExport caller7 : public caller< HandlerBase7<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6, Param7> >
{
 public:
        caller7(HandlerBase7<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6, Param7>* initial)
        : caller< HandlerBase7<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6, Param7> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2, Param3 param3, Param4 param4, Param5 param5, Param6 param6, Param7 param7)
        {
                return this->target->Call(param1, param2, param3, param4, param5, param6, param7);
        }
};

template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6, typename Param7, typename Param8> class CoreExport caller8 : public caller< HandlerBase8<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8> >
{
 public:
        caller8(HandlerBase8<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8>* initial)
        : caller< HandlerBase8<ReturnType, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8> >(initial)
        { }

        virtual ReturnType operator() (Param1 param1, Param2 param2, Param3 param3, Param4 param4, Param5 param5, Param6 param6, Param7 param7, Param8 param8)
        {
                return this->target->Call(param1, param2, param3, param4, param5, param6, param7, param8);
        }
};

#define DEFINE_HANDLER0(NAME, RETURN) \
        class CoreExport NAME : public HandlerBase0<RETURN> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(); }

#define DEFINE_HANDLER1(NAME, RETURN, V1) \
        class CoreExport NAME : public HandlerBase1<RETURN, V1> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1); }

#define DEFINE_HANDLER2(NAME, RETURN, V1, V2) \
        class CoreExport NAME : public HandlerBase2<RETURN, V1, V2> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2); }

#define DEFINE_HANDLER3(NAME, RETURN, V1, V2, V3) \
        class CoreExport NAME : public HandlerBase3<RETURN, V1, V2, V3> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3); }

#define DEFINE_HANDLER4(NAME, RETURN, V1, V2, V3, V4) \
        class CoreExport NAME : public HandlerBase4<RETURN, V1, V2, V3, V4> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3, V4); }

#define DEFINE_HANDLER5(NAME, RETURN, V1, V2, V3, V4, V5) \
        class CoreExport NAME : public HandlerBase5<RETURN, V1, V2, V3, V4, V5> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5); }

#define DEFINE_HANDLER6(NAME, RETURN, V1, V2, V3, V4, V5, V6) \
        class CoreExport NAME : public HandlerBase6<RETURN, V1, V2, V3, V4, V5, V6> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5, V6); }

#define DEFINE_HANDLER7(NAME, RETURN, V1, V2, V3, V4, V5, V6, V7) \
        class CoreExport NAME : public HandlerBase7<RETURN, V1, V2, V3, V4, V5, V6, V7> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5, V6, V7); }

#define DEFINE_HANDLER8(NAME, RETURN, V1, V2, V3, V4, V5, V6, V7, V8) \
        class CoreExport NAME : public HandlerBase8<RETURN, V1, V2, V3, V4, V5, V6, V7, V8> { InspIRCd* Server; public: NAME(InspIRCd* Srv) : Server(Srv) { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5, V6, V7, V8); }

#endif