Merge branch 'master+crossmodevents'

[user/henk/code/inspircd.git] / include / caller.h

diff --git a/include/caller.h b/include/caller.h
index 88e7df4a1349015623d24af1572299daa2d801b0..47f896ef612dafb5dbfe47574cf68ab032ea10ae 100644 (file)
--- a/include/caller.h
+++ b/include/caller.h
@@ -3,6 +3,7 @@
  *
  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
  *   Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2012 Adam <Adam@anope.org>
  *
  * This file is part of InspIRCd.  InspIRCd is free software: you can
  * redistribute it and/or modify it under the terms of the GNU General Public
@@ -18,8 +19,79 @@
  */
 
 
-#ifndef CALLER_H
-#define CALLER_H
+#pragma once
+
+#if defined HAS_CXX11_VARIADIC_TEMPLATES
+
+template<typename ReturnType, typename... Args> class CoreExport Handler : public classbase
+{
+ public:
+       virtual ~Handler() { }
+       virtual ReturnType Call(Args...) = 0;
+};
+
+template<typename ReturnType, typename... Args> class CoreExport Caller
+{
+ public:
+       Handler<ReturnType, Args...>* target;
+
+       Caller(Handler<ReturnType, Args...>* initial) : target(initial) { }
+       virtual ~Caller() { }
+
+       virtual ReturnType operator()(const Args&... params)
+       {
+               return this->target->Call(params...);
+       }
+};
+
+/* Below here is compat with the old API */
+#define HandlerBase0 Handler
+#define HandlerBase1 Handler
+#define HandlerBase2 Handler
+#define HandlerBase3 Handler
+#define HandlerBase4 Handler
+#define HandlerBase5 Handler
+#define HandlerBase6 Handler
+#define HandlerBase7 Handler
+#define HandlerBase8 Handler
+
+#define caller1 Caller
+#define caller2 Caller
+#define caller3 Caller
+#define caller4 Caller
+#define caller5 Caller
+#define caller6 Caller
+#define caller7 Caller
+#define caller8 Caller
+
+#define DEFINE_HANDLER0(NAME, RETURN) \
+       class CoreExport NAME : public Handler<RETURN> { public: NAME() { } virtual RETURN Call(); }
+
+#define DEFINE_HANDLER1(NAME, RETURN, V1) \
+       class CoreExport NAME : public Handler<RETURN, V1> { public: NAME() { } virtual RETURN Call(V1); }
+
+#define DEFINE_HANDLER2(NAME, RETURN, V1, V2) \
+       class CoreExport NAME : public Handler<RETURN, V1, V2> { public: NAME() { } virtual RETURN Call(V1, V2); }
+
+#define DEFINE_HANDLER3(NAME, RETURN, V1, V2, V3) \
+       class CoreExport NAME : public Handler<RETURN, V1, V2, V3> { public: NAME() { } virtual RETURN Call(V1, V2, V3); }
+
+#define DEFINE_HANDLER4(NAME, RETURN, V1, V2, V3, V4) \
+       class CoreExport NAME : public Handler<RETURN, V1, V2, V3, V4> { public: NAME() { } virtual RETURN Call(V1, V2, V3, V4); }
+
+#define DEFINE_HANDLER5(NAME, RETURN, V1, V2, V3, V4, V5) \
+       class CoreExport NAME : public Handler<RETURN, V1, V2, V3, V4, V5> { public: NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5); }
+
+#define DEFINE_HANDLER6(NAME, RETURN, V1, V2, V3, V4, V5, V6) \
+       class CoreExport NAME : public Handler<RETURN, V1, V2, V3, V4, V5, V6> { public: 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 Handler<RETURN, V1, V2, V3, V4, V5, V6, V7> { public: 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 Handler<RETURN, V1, V2, V3, V4, V5, V6, V7, V8> { public: NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5, V6, V7, V8); }
+
+#else
 
 /** The templates below can be auto generated by tools/create_templates.pl.
  * They are used to represent a functor with a given number of parameters and
@@ -44,7 +116,7 @@
  *
  * MyNewFunction replaceme(ServerInstance);
  *
- * someclass->MyFunction = &replaceme;
+ * someclass->MyFunction = \&replaceme;
  *
  * After this point, calls to someclass->MyFunction will call the new code in your
  * replacement functor.
@@ -117,7 +189,7 @@ template <typename ReturnType, typename Param1, typename Param2, typename Param3
        virtual ~HandlerBase8() { }
 };
 
-template <typename HandlerType> class CoreExport caller
+template <typename HandlerType> class caller
 {
  public:
        HandlerType* target;
@@ -129,118 +201,118 @@ template <typename HandlerType> class CoreExport caller
        virtual ~caller() { }
 };
 
-template <typename ReturnType> class CoreExport caller0 : public caller< HandlerBase0<ReturnType> >
+template <typename ReturnType> class caller0 : public caller< HandlerBase0<ReturnType> >
 {
  public:
        caller0(HandlerBase0<ReturnType>* initial)
        : caller< HandlerBase0<ReturnType> >::caller(initial)
        { }
 
-       virtual ReturnType operator() ()
+       ReturnType operator() ()
        {
                return this->target->Call();
        }
 };
 
-template <typename ReturnType, typename Param1> class CoreExport caller1 : public caller< HandlerBase1<ReturnType, Param1> >
+template <typename ReturnType, typename Param1> class caller1 : public caller< HandlerBase1<ReturnType, Param1> >
 {
  public:
        caller1(HandlerBase1<ReturnType, Param1>* initial)
        : caller< HandlerBase1<ReturnType, Param1> >(initial)
        { }
 
-       virtual ReturnType operator() (Param1 param1)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2> class 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)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2, typename Param3> class 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)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4> class 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)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5> class 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)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6> class 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)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6, typename Param7> class 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)
+       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> >
+template <typename ReturnType, typename Param1, typename Param2, typename Param3, typename Param4, typename Param5, typename Param6, typename Param7, typename Param8> class 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)
+       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);
        }