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callback.h
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// Copyright 2007 Google Inc. All Rights Reserved.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// Author: [email protected] (Nigel D'souza)
//
// A callback library that supports callbacks of upto 2 arguments.
// This library supports permanent and non-permanent callbacks. Permanent
// callbacks can be run multiple times and require explicit deletion.
// Non-permanent callbacks can only be run once, after which they are
// immediately, automatically deleted.
// The library also supports callbacks with upto 3 prebound arguments.
//
// Examples:
// string s = "Hello World!";
// {
// Callback0<int> *cb0 =
// CallbackFactory::Create(&s, &string::length);
// cb0->Run(); // returns 12
// }
// {
// Callback1<char, int> *cb1 =
// CallbackFactory::Create(&s, &string::reserve);
// cb1->Run(15); // reserves space in s for 15 characters
// }
// {
// Callback2<int, char, int> *cb =
// CallbackFactory::CreatePermanent(&s, &string::find);
// cb2->Run('o', 5); // returns 7
// cb2->Run('l', 4); // returns 9
// cb2->Run('r', 1); // returns 8
// delete cb2; // required for permanent Callbacks
// }
//
// We define the various templated callback interfaces Callback*<>.
//
// We then define various implementation of the templated callback interfaces.
// For example, Callback2<..> has a member-function implementation in
// __MemberCallback_0_2<..>.
// The internal classes are suffixed with _p_a where p is the number of prebound
// arguments accepted and a is the number of run arguments required.
//
// These templates all take a 'permanent' parameter that indicates whether the
// Callback will be a permanent one. The decision of whether or not the
// Callback will be permanent is known at the point of the call to 'new'.
// Since we are using templates, we can use that knowledge to dynamically
// declare the class. Consequently, the compiler has more information that it
// can use to optimize out code.
// For example, in the Run function, the compiler can remove the 'delete this'
// statement from the class definition if the Callback is permanent.
//
// Callbacks that return void require special treatment. We use partial
// template specialization to allow for special treatment while maintaining
// a similar interface.
//
// We define a CallbackFactory as another layer of indirection. The
// CallbackFactory is the way to instantiate a Callback. We take advantage of
// templating and function overloading to ensure that all Callbacks can be
// instantiated through CallbackFactory::Create(..), for non-permanent callbacks
// or CallbackFactory::CreatePermanent(..) for permanent callbacks. The
// abstraction provided by CallbackFactory affords extensions to callbacks
// without altering the interface.
//
// Due to the repetitive nature of the class definitions, we use macros to
// define the Run function. We can add/expand the macros as needed.
//
// Differences with internal callback library:
// * No support for const-ness
#ifndef TOOLS_TAGS_CALLBACK_H__
#define TOOLS_TAGS_CALLBACK_H__
#include "tagsutil.h"
// Helpful macros for defining all the classes
#define __DEFINE_CALLBACK_CLASS(name, run_args) \
class name : public Callback { \
public: \
virtual ~name() {} \
virtual R Run run_args = 0; \
protected: \
name() {} \
private: \
DISALLOW_EVIL_CONSTRUCTORS(name); \
};
#define __DEFINE_R_MEMBER_RUN_FUNCTION(run_args, fn_args) \
virtual R Run run_args { \
R result = (obj_->*fn_)fn_args; \
if (!permanent) \
delete this; \
return result; \
}
#define __DEFINE_void_MEMBER_RUN_FUNCTION(run_args, fn_args) \
virtual void Run run_args { \
(obj_->*fn_)fn_args; \
if (!permanent) \
delete this; \
}
#define __DEFINE_R_STATIC_RUN_FUNCTION(run_args, fn_args) \
virtual R Run run_args { \
R result = (*fn_)fn_args; \
if (!permanent) \
delete this; \
return result; \
}
#define __DEFINE_void_STATIC_RUN_FUNCTION(run_args, fn_args) \
virtual void Run run_args { \
(*fn_)fn_args; \
if (!permanent) \
delete this; \
}
#define __DEFINE_ISREPEATABLE_FUNCTION() \
virtual bool IsRepeatable() const { return permanent; }
#define __DEFINE_COMMON_MEMBER_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
friend class CallbackFactory; \
public: \
__DEFINE_ISREPEATABLE_FUNCTION(); \
private: \
DISALLOW_EVIL_CONSTRUCTORS(name); \
protected: \
typedef voidness (T::*FN) fn_def_args; \
virtual ~name() {} \
__DEFINE_##voidness##_MEMBER_RUN_FUNCTION(run_args, fn_args); \
T* obj_; \
FN fn_
#define __DEFINE_COMMON_STATIC_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
friend class CallbackFactory; \
public: \
__DEFINE_ISREPEATABLE_FUNCTION(); \
private: \
DISALLOW_EVIL_CONSTRUCTORS(name); \
protected: \
typedef voidness (*FN) fn_def_args; \
virtual ~name() {} \
__DEFINE_##voidness##_STATIC_RUN_FUNCTION(run_args, fn_args); \
FN fn_
#define __DEFINE_MEMBER_CALLBACK_0_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_MEMBER_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(T* obj, FN fn) : obj_(obj), fn_(fn) {}
#define __DEFINE_MEMBER_CALLBACK_1_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_MEMBER_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(T* obj, FN fn, P1 p1) : \
obj_(obj), fn_(fn), p1_(p1) {} \
P1 p1_
#define __DEFINE_MEMBER_CALLBACK_2_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_MEMBER_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(T* obj, FN fn, P1 p1, P2 p2) : \
obj_(obj), fn_(fn), p1_(p1), p2_(p2) {} \
P1 p1_; \
P2 p2_
#define __DEFINE_MEMBER_CALLBACK_3_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_MEMBER_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(T* obj, FN fn, P1 p1, P2 p2, P3 p3) : \
obj_(obj), fn_(fn), p1_(p1), p2_(p2), p3_(p3) {} \
P1 p1_; \
P2 p2_; \
P3 p3_
#define __DEFINE_STATIC_CALLBACK_0_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_STATIC_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(FN fn) : fn_(fn) {}
#define __DEFINE_STATIC_CALLBACK_1_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_STATIC_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(FN fn, P1 p1) : \
fn_(fn), p1_(p1) {} \
P1 p1_
#define __DEFINE_STATIC_CALLBACK_2_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_STATIC_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(FN fn, P1 p1, P2 p2) : \
fn_(fn), p1_(p1), p2_(p2) {} \
P1 p1_; \
P2 p2_
#define __DEFINE_STATIC_CALLBACK_3_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args) \
__DEFINE_COMMON_STATIC_CALLBACK_CLASS_BODY( \
name, voidness, fn_def_args, run_args, fn_args); \
name(FN fn, P1 p1, P2 p2, P3 p3) : \
fn_(fn), p1_(p1), p2_(p2), p3_(p3) {} \
P1 p1_; \
P2 p2_; \
P3 p3_
namespace gtags {
// Base Callback interface
class Callback {
public:
virtual bool IsRepeatable() const = 0;
};
// *** 0-Argument Callbacks *** //
// Templated 0-argument callback interface
template <typename R>
__DEFINE_CALLBACK_CLASS(Callback0, ())
// We define a Closure for similarity with the internal callback library
typedef Callback0<void> Closure;
// Templated 0-prebound 0-argument member-callback implementation
template <bool permanent, typename R, class T>
class __MemberCallback_0_0
: public Callback0<R> {
__DEFINE_MEMBER_CALLBACK_0_CLASS_BODY(
__MemberCallback_0_0, R, (), (), ());
};
template <bool permanent, class T>
class __MemberCallback_0_0<permanent, void, T>
: public Callback0<void> {
__DEFINE_MEMBER_CALLBACK_0_CLASS_BODY(
__MemberCallback_0_0, void, (), (), ());
};
// Templated 0-prebound 0-argument static-callback implementation
template <bool permanent, typename R>
class __StaticCallback_0_0
: public Callback0<R> {
__DEFINE_STATIC_CALLBACK_0_CLASS_BODY(
__StaticCallback_0_0, R, (), (), ());
};
template <bool permanent>
class __StaticCallback_0_0<permanent, void>
: public Callback0<void> {
__DEFINE_STATIC_CALLBACK_0_CLASS_BODY(
__StaticCallback_0_0, void, (), (), ());
};
// Templated 1-prebound 0-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1>
class __MemberCallback_1_0
: public Callback0<R> {
__DEFINE_MEMBER_CALLBACK_1_CLASS_BODY(
__MemberCallback_1_0, R, (P1), (), (p1_));
};
template <bool permanent, class T,
typename P1>
class __MemberCallback_1_0<permanent, void, T, P1>
: public Callback0<void> {
__DEFINE_MEMBER_CALLBACK_1_CLASS_BODY(
__MemberCallback_1_0, void, (P1), (), (p1_));
};
// Templated 1-prebound 0-argument static-callback implementation
template <bool permanent, typename R,
typename P1>
class __StaticCallback_1_0
: public Callback0<R> {
__DEFINE_STATIC_CALLBACK_1_CLASS_BODY(
__StaticCallback_1_0, R, (P1), (), (p1_));
};
template <bool permanent,
typename P1>
class __StaticCallback_1_0<permanent, void, P1>
: public Callback0<void> {
__DEFINE_STATIC_CALLBACK_1_CLASS_BODY(
__StaticCallback_1_0, void, (P1), (), (p1_));
};
// Templated 2-prebound 0-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename P2>
class __MemberCallback_2_0
: public Callback0<R> {
__DEFINE_MEMBER_CALLBACK_2_CLASS_BODY(
__MemberCallback_2_0, R, (P1, P2), (), (p1_, p2_));
};
template <bool permanent, class T,
typename P1, typename P2>
class __MemberCallback_2_0<permanent, void, T, P1, P2>
: public Callback0<void> {
__DEFINE_MEMBER_CALLBACK_2_CLASS_BODY(
__MemberCallback_2_0, void, (P1, P2), (), (p1_, p2_));
};
// Templated 2-prebound 0-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename P2>
class __StaticCallback_2_0
: public Callback0<R> {
__DEFINE_STATIC_CALLBACK_2_CLASS_BODY(
__StaticCallback_2_0, R, (P1, P2), (), (p1_, p2_));
};
template <bool permanent,
typename P1, typename P2>
class __StaticCallback_2_0<permanent, void, P1, P2>
: public Callback0<void> {
__DEFINE_STATIC_CALLBACK_2_CLASS_BODY(
__StaticCallback_2_0, void, (P1, P2), (), (p1_, p2_));
};
// Templated 3-prebound 0-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename P2, typename P3>
class __MemberCallback_3_0
: public Callback0<R> {
__DEFINE_MEMBER_CALLBACK_3_CLASS_BODY(
__MemberCallback_3_0, R, (P1, P2, P3), (), (p1_, p2_, p3_));
};
template <bool permanent, class T,
typename P1, typename P2, typename P3>
class __MemberCallback_3_0<permanent, void, T, P1, P2, P3>
: public Callback0<void> {
__DEFINE_MEMBER_CALLBACK_3_CLASS_BODY(
__MemberCallback_3_0, void, (P1, P2, P3), (), (p1_, p2_, p3_));
};
// Templated 3-prebound 0-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename P2, typename P3>
class __StaticCallback_3_0
: public Callback0<R> {
__DEFINE_STATIC_CALLBACK_3_CLASS_BODY(
__StaticCallback_3_0, R, (P1, P2, P3), (), (p1_, p2_, p3_));
};
template <bool permanent,
typename P1, typename P2, typename P3>
class __StaticCallback_3_0<permanent, void, P1, P2, P3>
: public Callback0<void> {
__DEFINE_STATIC_CALLBACK_3_CLASS_BODY(
__StaticCallback_3_0, void, (P1, P2, P3), (), (p1_, p2_, p3_));
};
// *** 1-Argument Callbacks *** //
// Templated 1-argument callback interface
template <typename R, typename A1>
__DEFINE_CALLBACK_CLASS(Callback1, (A1 a1))
// Templated 0-prebound 1-argument member-callback implementation
template <bool permanent, typename R, class T, typename A1>
class __MemberCallback_0_1
: public Callback1<R, A1> {
__DEFINE_MEMBER_CALLBACK_0_CLASS_BODY(
__MemberCallback_0_1, R, (A1), (A1 a1), (a1));
};
template <bool permanent, class T, typename A1>
class __MemberCallback_0_1<permanent, void, T, A1>
: public Callback1<void, A1> {
__DEFINE_MEMBER_CALLBACK_0_CLASS_BODY(
__MemberCallback_0_1, void, (A1), (A1 a1), (a1));
};
// Templated 0-prebound 1-argument static-callback implementation
template <bool permanent, typename R, typename A1>
class __StaticCallback_0_1
: public Callback1<R, A1> {
__DEFINE_STATIC_CALLBACK_0_CLASS_BODY(
__StaticCallback_0_1, R, (A1), (A1 a1), (a1));
};
template <bool permanent, typename A1>
class __StaticCallback_0_1<permanent, void, A1>
: public Callback1<void, A1> {
__DEFINE_STATIC_CALLBACK_0_CLASS_BODY(
__StaticCallback_0_1, void, (A1), (A1 a1), (a1));
};
// Templated 1-prebound 1-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename A1>
class __MemberCallback_1_1
: public Callback1<R, A1> {
__DEFINE_MEMBER_CALLBACK_1_CLASS_BODY(
__MemberCallback_1_1, R, (P1, A1), (A1 a1), (p1_, a1));
};
template <bool permanent, class T,
typename P1, typename A1>
class __MemberCallback_1_1<permanent, void, T, P1, A1>
: public Callback1<void, A1> {
__DEFINE_MEMBER_CALLBACK_1_CLASS_BODY(
__MemberCallback_1_1, void, (P1, A1), (A1 a1), (p1_, a1));
};
// Templated 1-prebound 1-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename A1>
class __StaticCallback_1_1
: public Callback1<R, A1> {
__DEFINE_STATIC_CALLBACK_1_CLASS_BODY(
__StaticCallback_1_1, R, (P1, A1), (A1 a1), (p1_, a1));
};
template <bool permanent,
typename P1, typename A1>
class __StaticCallback_1_1<permanent, void, P1, A1>
: public Callback1<void, A1> {
__DEFINE_STATIC_CALLBACK_1_CLASS_BODY(
__StaticCallback_1_1, void, (P1, A1), (A1 a1), (p1_, a1));
};
// Templated 2-prebound 1-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename P2, typename A1>
class __MemberCallback_2_1
: public Callback1<R, A1> {
__DEFINE_MEMBER_CALLBACK_2_CLASS_BODY(
__MemberCallback_2_1, R, (P1, P2, A1), (A1 a1), (p1_, p2_, a1));
};
template <bool permanent, class T,
typename P1, typename P2, typename A1>
class __MemberCallback_2_1<permanent, void, T, P1, P2, A1>
: public Callback1<void, A1> {
__DEFINE_MEMBER_CALLBACK_2_CLASS_BODY(
__MemberCallback_2_1, void, (P1, P2, A1), (A1 a1), (p1_, p2_, a1));
};
// Templated 2-prebound 1-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename P2, typename A1>
class __StaticCallback_2_1
: public Callback1<R, A1> {
__DEFINE_STATIC_CALLBACK_2_CLASS_BODY(
__StaticCallback_2_1, R, (P1, P2, A1), (A1 a1), (p1_, p2_, a1));
};
template <bool permanent,
typename P1, typename P2, typename A1>
class __StaticCallback_2_1<permanent, void, P1, P2, A1>
: public Callback1<void, A1> {
__DEFINE_STATIC_CALLBACK_2_CLASS_BODY(
__StaticCallback_2_1, void, (P1, P2, A1), (A1 a1), (p1_, p2_, a1));
};
// Templated 3-prebound 1-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename P2, typename P3, typename A1>
class __MemberCallback_3_1
: public Callback1<R, A1> {
__DEFINE_MEMBER_CALLBACK_3_CLASS_BODY(
__MemberCallback_3_1, R, (P1, P2, P3, A1),
(A1 a1), (p1_, p2_, p3_, a1));
};
template <bool permanent, class T,
typename P1, typename P2, typename P3, typename A1>
class __MemberCallback_3_1<permanent, void, T, P1, P2, P3, A1>
: public Callback1<void, A1> {
__DEFINE_MEMBER_CALLBACK_3_CLASS_BODY(
__MemberCallback_3_1, void, (P1, P2, P3, A1),
(A1 a1), (p1_, p2_, p3_, a1));
};
// Templated 3-prebound 1-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename P2, typename P3, typename A1>
class __StaticCallback_3_1
: public Callback1<R, A1> {
__DEFINE_STATIC_CALLBACK_3_CLASS_BODY(
__StaticCallback_3_1, R, (P1, P2, P3, A1),
(A1 a1), (p1_, p2_, p3_, a1));
};
template <bool permanent,
typename P1, typename P2, typename P3, typename A1>
class __StaticCallback_3_1<permanent, void, P1, P2, P3, A1>
: public Callback1<void, A1> {
__DEFINE_STATIC_CALLBACK_3_CLASS_BODY(
__StaticCallback_3_1, void, (P1, P2, P3, A1),
(A1 a1), (p1_, p2_, p3_, a1));
};
// *** 2-Argument Callbacks *** //
// Templated 2-argument callback interface
template <typename R, typename A1, typename A2>
__DEFINE_CALLBACK_CLASS(Callback2, (A1 a1, A2 a2))
// Templated 0-prebound 2-argument member-callback implementation
template <bool permanent, typename R, class T, typename A1, typename A2>
class __MemberCallback_0_2
: public Callback2<R, A1, A2> {
__DEFINE_MEMBER_CALLBACK_0_CLASS_BODY(
__MemberCallback_0_2, R, (A1, A2), (A1 a1, A2 a2), (a1, a2));
};
template <bool permanent, class T, typename A1, typename A2>
class __MemberCallback_0_2<permanent, void, T, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_MEMBER_CALLBACK_0_CLASS_BODY(
__MemberCallback_0_2, void, (A1, A2), (A1 a1, A2 a2), (a1, a2));
};
// Templated 0-prebound 2-argument static-callback implementation
template <bool permanent, typename R, typename A1, typename A2>
class __StaticCallback_0_2
: public Callback2<R, A1, A2> {
__DEFINE_STATIC_CALLBACK_0_CLASS_BODY(
__StaticCallback_0_2, R, (A1, A2), (A1 a1, A2 a2), (a1, a2));
};
template <bool permanent, typename A1, typename A2>
class __StaticCallback_0_2<permanent, void, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_STATIC_CALLBACK_0_CLASS_BODY(
__StaticCallback_0_2, void, (A1, A2), (A1 a1, A2 a2), (a1, a2));
};
// Templated 1-prebound 2-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename A1, typename A2>
class __MemberCallback_1_2
: public Callback2<R, A1, A2> {
__DEFINE_MEMBER_CALLBACK_1_CLASS_BODY(
__MemberCallback_1_2, R, (P1, A1, A2),
(A1 a1, A2 a2), (p1_, a1, a2));
};
template <bool permanent, class T,
typename P1, typename A1, typename A2>
class __MemberCallback_1_2<permanent, void, T, P1, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_MEMBER_CALLBACK_1_CLASS_BODY(
__MemberCallback_1_2, void, (P1, A1, A2),
(A1 a1, A2 a2), (p1_, a1, a2));
};
// Templated 1-prebound 2-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename A1, typename A2>
class __StaticCallback_1_2
: public Callback2<R, A1, A2> {
__DEFINE_STATIC_CALLBACK_1_CLASS_BODY(
__StaticCallback_1_2, R, (P1, A1, A2),
(A1 a1, A2 a2), (p1_, a1, a2));
};
template <bool permanent,
typename P1, typename A1, typename A2>
class __StaticCallback_1_2<permanent, void, P1, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_STATIC_CALLBACK_1_CLASS_BODY(
__StaticCallback_1_2, void, (P1, A1, A2),
(A1 a1, A2 a2), (p1_, a1, a2));
};
// Templated 2-prebound 2-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename P2, typename A1, typename A2>
class __MemberCallback_2_2
: public Callback2<R, A1, A2> {
__DEFINE_MEMBER_CALLBACK_2_CLASS_BODY(
__MemberCallback_2_2, R, (P1, P2, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, a1, a2));
};
template <bool permanent, class T,
typename P1, typename P2, typename A1, typename A2>
class __MemberCallback_2_2<permanent, void, T, P1, P2, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_MEMBER_CALLBACK_2_CLASS_BODY(
__MemberCallback_2_2, void, (P1, P2, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, a1, a2));
};
// Templated 2-prebound 2-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename P2, typename A1, typename A2>
class __StaticCallback_2_2
: public Callback2<R, A1, A2> {
__DEFINE_STATIC_CALLBACK_2_CLASS_BODY(
__StaticCallback_2_2, R, (P1, P2, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, a1, a2));
};
template <bool permanent,
typename P1, typename P2, typename A1, typename A2>
class __StaticCallback_2_2<permanent, void, P1, P2, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_STATIC_CALLBACK_2_CLASS_BODY(
__StaticCallback_2_2, void, (P1, P2, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, a1, a2));
};
// Templated 3-prebound 2-argument member-callback implementation
template <bool permanent, typename R, class T,
typename P1, typename P2, typename P3, typename A1, typename A2>
class __MemberCallback_3_2
: public Callback2<R, A1, A2> {
__DEFINE_MEMBER_CALLBACK_3_CLASS_BODY(
__MemberCallback_3_2, R, (P1, P2, P3, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, p3_, a1, a2));
};
template <bool permanent, class T,
typename P1, typename P2, typename P3, typename A1, typename A2>
class __MemberCallback_3_2<permanent, void, T, P1, P2, P3, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_MEMBER_CALLBACK_3_CLASS_BODY(
__MemberCallback_3_2, void, (P1, P2, P3, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, p3_, a1, a2));
};
// Templated 3-prebound 2-argument static-callback implementation
template <bool permanent, typename R,
typename P1, typename P2, typename P3, typename A1, typename A2>
class __StaticCallback_3_2
: public Callback2<R, A1, A2> {
__DEFINE_STATIC_CALLBACK_3_CLASS_BODY(
__StaticCallback_3_2, R, (P1, P2, P3, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, p3_, a1, a2));
};
template <bool permanent,
typename P1, typename P2, typename P3, typename A1, typename A2>
class __StaticCallback_3_2<permanent, void, P1, P2, P3, A1, A2>
: public Callback2<void, A1, A2> {
__DEFINE_STATIC_CALLBACK_3_CLASS_BODY(
__StaticCallback_3_2, void, (P1, P2, P3, A1, A2),
(A1 a1, A2 a2), (p1_, p2_, p3_, a1, a2));
};
// CallbackFactory is used to instantiate various types of Callbacks.
// Templating and function overloading allow all Callbacks to be instantiated
// through the Create(..) methods and all permanent Callbacks to be instantiated
// through the CreatePermanent(..) methods.
class CallbackFactory {
public:
// Creators for 0-prebound 0-argument Callbacks
template <typename R, class T>
static Callback0<R>* Create(
T* obj, R (T::*fn)()) {
return new __MemberCallback_0_0<false, R, T>(obj, fn);
}
template <typename R, class T>
static Callback0<R>* CreatePermanent(
T* obj, R (T::*fn)()) {
return new __MemberCallback_0_0<true, R, T>(obj, fn);
}
template <typename R>
static Callback0<R>* Create(
R (*fn)()) {
return new __StaticCallback_0_0<false, R>(fn);
}
template <typename R>
static Callback0<R>* CreatePermanent(
R (*fn)()) {
return new __StaticCallback_0_0<true, R>(fn);
}
// Creators for 1-prebound 0-argument Callbacks
template <typename R, class T,
typename P1>
static Callback0<R>* Create(
T* obj, R (T::*fn)(P1), P1 p1) {
return new __MemberCallback_1_0<false, R, T, P1>(obj, fn, p1);
}
template <typename R, class T,
typename P1>
static Callback0<R>* CreatePermanent(
T* obj, R (T::*fn)(P1), P1 p1) {
return new __MemberCallback_1_0<true, R, T, P1>(obj, fn, p1);
}
template <typename R,
typename P1>
static Callback0<R>* Create(
R (*fn)(P1), P1 p1) {
return new __StaticCallback_1_0<false, R, P1>(fn, p1);
}
template <typename R,
typename P1>
static Callback0<R>* CreatePermanent(
R (*fn)(P1), P1 p1) {
return new __StaticCallback_1_0<true, R, P1>(fn, p1);
}
// Creators for 2-prebound 0-argument Callbacks
template <typename R, class T,
typename P1, typename P2>
static Callback0<R>* Create(
T* obj, R (T::*fn)(P1, P2), P1 p1, P2 p2) {
return new __MemberCallback_2_0<false, R, T, P1, P2>(obj, fn, p1, p2);
}
template <typename R, class T,
typename P1, typename P2>
static Callback0<R>* CreatePermanent(
T* obj, R (T::*fn)(P1, P2), P1 p1, P2 p2) {
return new __MemberCallback_2_0<true, R, T, P1, P2>(obj, fn, p1, p2);
}
template <typename R,
typename P1, typename P2>
static Callback0<R>* Create(
R (*fn)(P1, P2), P1 p1, P2 p2) {
return new __StaticCallback_2_0<false, R, P1, P2>(fn, p1, p2);
}
template <typename R,
typename P1, typename P2>
static Callback0<R>* CreatePermanent(
R (*fn)(P1, P2), P1 p1, P2 p2) {
return new __StaticCallback_2_0<true, R, P1, P2>(fn, p1, p2);
}
// Creators for 3-prebound 0-argument Callbacks
template <typename R, class T,
typename P1, typename P2, typename P3>
static Callback0<R>* Create(
T* obj, R (T::*fn)(P1, P2, P3), P1 p1, P2 p2, P3 p3) {
return new __MemberCallback_3_0<false, R, T, P1, P2, P3>(obj, fn, p1, p2, p3);
}
template <typename R, class T,
typename P1, typename P2, typename P3>
static Callback0<R>* CreatePermanent(
T* obj, R (T::*fn)(P1, P2, P3), P1 p1, P2 p2, P3 p3) {
return new __MemberCallback_3_0<true, R, T, P1, P2, P3>(obj, fn, p1, p2, p3);
}
template <typename R,
typename P1, typename P2, typename P3>
static Callback0<R>* Create(
R (*fn)(P1, P2, P3), P1 p1, P2 p2, P3 p3) {
return new __StaticCallback_3_0<false, R, P1, P2, P3>(fn, p1, p2, p3);
}
template <typename R,
typename P1, typename P2, typename P3>
static Callback0<R>* CreatePermanent(
R (*fn)(P1, P2, P3), P1 p1, P2 p2, P3 p3) {
return new __StaticCallback_3_0<true, R, P1, P2, P3>(fn, p1, p2, p3);
}
// Creators for 0-prebound 1-argument Callbacks
template <typename R, class T, typename A1>
static Callback1<R, A1>* Create(
T* obj, R (T::*fn)(A1)) {
return new __MemberCallback_0_1<false, R, T, A1>(obj, fn);
}
template <typename R, class T, typename A1>
static Callback1<R, A1>* CreatePermanent(
T* obj, R (T::*fn)(A1)) {
return new __MemberCallback_0_1<true, R, T, A1>(obj, fn);
}
template <typename R, typename A1>
static Callback1<R, A1>* Create(
R (*fn)(A1)) {
return new __StaticCallback_0_1<false, R, A1>(fn);
}
template <typename R, typename A1>
static Callback1<R, A1>* CreatePermanent(
R (*fn)(A1)) {
return new __StaticCallback_0_1<true, R, A1>(fn);
}
// Creators for 1-prebound 1-argument Callbacks
template <typename R, class T,
typename P1, typename A1>
static Callback1<R, A1>* Create(
T* obj, R (T::*fn)(P1, A1), P1 p1) {
return new __MemberCallback_1_1<false, R, T, P1, A1>(obj, fn, p1);
}
template <typename R, class T,
typename P1, typename A1>
static Callback1<R, A1>* CreatePermanent(
T* obj, R (T::*fn)(P1, A1), P1 p1) {
return new __MemberCallback_1_1<true, R, T, P1, A1>(obj, fn, p1);
}
template <typename R,
typename P1, typename A1>
static Callback1<R, A1>* Create(
R (*fn)(P1, A1), P1 p1) {
return new __StaticCallback_1_1<false, R, P1, A1>(fn, p1);
}
template <typename R,
typename P1, typename A1>
static Callback1<R, A1>* CreatePermanent(
R (*fn)(P1, A1), P1 p1) {
return new __StaticCallback_1_1<true, R, P1, A1>(fn, p1);
}
// Creators for 2-prebound 1-argument Callbacks
template <typename R, class T,
typename P1, typename P2, typename A1>
static Callback1<R, A1>* Create(
T* obj, R (T::*fn)(P1, P2, A1), P1 p1, P2 p2) {
return new __MemberCallback_2_1<false, R, T, P1, P2, A1>(obj, fn, p1, p2);
}
template <typename R, class T,
typename P1, typename P2, typename A1>
static Callback1<R, A1>* CreatePermanent(
T* obj, R (T::*fn)(P1, P2, A1), P1 p1, P2 p2) {
return new __MemberCallback_2_1<true, R, T, P1, P2, A1>(obj, fn, p1, p2);
}
template <typename R,
typename P1, typename P2, typename A1>
static Callback1<R, A1>* Create(
R (*fn)(P1, P2, A1), P1 p1, P2 p2) {
return new __StaticCallback_2_1<false, R, P1, P2, A1>(fn, p1, p2);
}
template <typename R,
typename P1, typename P2, typename A1>
static Callback1<R, A1>* CreatePermanent(
R (*fn)(P1, P2, A1), P1 p1, P2 p2) {
return new __StaticCallback_2_1<true, R, P1, P2, A1>(fn, p1, p2);
}
// Creators for 3-prebound 1-argument Callbacks
template <typename R, class T,
typename P1, typename P2, typename P3, typename A1>
static Callback1<R, A1>* Create(
T* obj, R (T::*fn)(P1, P2, P3, A1), P1 p1, P2 p2, P3 p3) {
return new __MemberCallback_3_1<false, R, T, P1, P2, P3, A1>(obj, fn, p1, p2, p3);
}
template <typename R, class T,
typename P1, typename P2, typename P3, typename A1>
static Callback1<R, A1>* CreatePermanent(
T* obj, R (T::*fn)(P1, P2, P3, A1), P1 p1, P2 p2, P3 p3) {
return new __MemberCallback_3_1<true, R, T, P1, P2, P3, A1>(obj, fn, p1, p2, p3);
}
template <typename R,
typename P1, typename P2, typename P3, typename A1>
static Callback1<R, A1>* Create(
R (*fn)(P1, P2, P3, A1), P1 p1, P2 p2, P3 p3) {
return new __StaticCallback_3_1<false, R, P1, P2, P3, A1>(fn, p1, p2, p3);
}
template <typename R,
typename P1, typename P2, typename P3, typename A1>
static Callback1<R, A1>* CreatePermanent(
R (*fn)(P1, P2, P3, A1), P1 p1, P2 p2, P3 p3) {
return new __StaticCallback_3_1<true, R, P1, P2, P3, A1>(fn, p1, p2, p3);
}
// Creators for 0-prebound 2-argument Callbacks
template <typename R, class T, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
T* obj, R (T::*fn)(A1, A2)) {
return new __MemberCallback_0_2<false, R, T, A1, A2>(obj, fn);
}
template <typename R, class T, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
T* obj, R (T::*fn)(A1, A2)) {
return new __MemberCallback_0_2<true, R, T, A1, A2>(obj, fn);
}
template <typename R, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
R (*fn)(A1, A2)) {
return new __StaticCallback_0_2<false, R, A1, A2>(fn);
}
template <typename R, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
R (*fn)(A1, A2)) {
return new __StaticCallback_0_2<true, R, A1, A2>(fn);
}
// Creators for 1-prebound 2-argument Callbacks
template <typename R, class T,
typename P1, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
T* obj, R (T::*fn)(P1, A1, A2), P1 p1) {
return new __MemberCallback_1_2<false, R, T, P1, A1, A2>(obj, fn, p1);
}
template <typename R, class T,
typename P1, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
T* obj, R (T::*fn)(P1, A1, A2), P1 p1) {
return new __MemberCallback_1_2<true, R, T, P1, A1, A2>(obj, fn, p1);
}
template <typename R,
typename P1, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
R (*fn)(P1, A1, A2), P1 p1) {
return new __StaticCallback_1_2<false, R, P1, A1, A2>(fn, p1);
}
template <typename R,
typename P1, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
R (*fn)(P1, A1, A2), P1 p1) {
return new __StaticCallback_1_2<true, R, P1, A1, A2>(fn, p1);
}
// Creators for 2-prebound 2-argument Callbacks
template <typename R, class T,
typename P1, typename P2, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
T* obj, R (T::*fn)(P1, P2, A1, A2), P1 p1, P2 p2) {
return new __MemberCallback_2_2<false, R, T, P1, P2, A1, A2>(obj, fn, p1, p2);
}
template <typename R, class T,
typename P1, typename P2, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
T* obj, R (T::*fn)(P1, P2, A1, A2), P1 p1, P2 p2) {
return new __MemberCallback_2_2<true, R, T, P1, P2, A1, A2>(obj, fn, p1, p2);
}
template <typename R,
typename P1, typename P2, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
R (*fn)(P1, P2, A1, A2), P1 p1, P2 p2) {
return new __StaticCallback_2_2<false, R, P1, P2, A1, A2>(fn, p1, p2);
}
template <typename R,
typename P1, typename P2, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
R (*fn)(P1, P2, A1, A2), P1 p1, P2 p2) {
return new __StaticCallback_2_2<true, R, P1, P2, A1, A2>(fn, p1, p2);
}
// Creators for 3-prebound 2-argument Callbacks
template <typename R, class T,
typename P1, typename P2, typename P3, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
T* obj, R (T::*fn)(P1, P2, P3, A1, A2), P1 p1, P2 p2, P3 p3) {
return new __MemberCallback_3_2<false, R, T, P1, P2, P3, A1, A2>(obj, fn, p1, p2, p3);
}
template <typename R, class T,
typename P1, typename P2, typename P3, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
T* obj, R (T::*fn)(P1, P2, P3, A1, A2), P1 p1, P2 p2, P3 p3) {
return new __MemberCallback_3_2<true, R, T, P1, P2, P3, A1, A2>(obj, fn, p1, p2, p3);
}
template <typename R,
typename P1, typename P2, typename P3, typename A1, typename A2>
static Callback2<R, A1, A2>* Create(
R (*fn)(P1, P2, P3, A1, A2), P1 p1, P2 p2, P3 p3) {
return new __StaticCallback_3_2<false, R, P1, P2, P3, A1, A2>(fn, p1, p2, p3);
}
template <typename R,
typename P1, typename P2, typename P3, typename A1, typename A2>
static Callback2<R, A1, A2>* CreatePermanent(
R (*fn)(P1, P2, P3, A1, A2), P1 p1, P2 p2, P3 p3) {
return new __StaticCallback_3_2<true, R, P1, P2, P3, A1, A2>(fn, p1, p2, p3);
}
private:
CallbackFactory();
DISALLOW_EVIL_CONSTRUCTORS(CallbackFactory);
};
}
#endif // TOOLS_TAGS_CALLBACK_H__