#include <cstddef>
#include "functional.h"
-#include "callbackfwd.h"
-template<typename Type>
-inline void* convertToOpaque( Type* t ){
- return t;
-}
-template<typename Type>
-inline void* convertToOpaque( const Type* t ){
- return const_cast<Type*>( t );
-}
-template<typename Type>
-inline void* convertToOpaque( Type& t ){
- return &t;
-}
-template<typename Type>
-inline void* convertToOpaque( const Type& t ){
- return const_cast<Type*>( &t );
-}
+namespace detail {
+
+ template<typename Thunk_>
+ class CallbackBase {
+ void *m_environment;
+ Thunk_ m_thunk;
+ public:
+ typedef Thunk_ Thunk;
+
+ CallbackBase(void *environment, Thunk function) : m_environment(environment), m_thunk(function) {
+ }
+
+ void *getEnvironment() const {
+ return m_environment;
+ }
+
+ Thunk getThunk() const {
+ return m_thunk;
+ }
+ };
+
+ template<typename Thunk>
+ inline bool operator==(const CallbackBase<Thunk> &self, const CallbackBase<Thunk> &other) {
+ return self.getEnvironment() == other.getEnvironment() && self.getThunk() == other.getThunk();
+ }
+
+ template<typename Thunk>
+ inline bool operator!=(const CallbackBase<Thunk> &self, const CallbackBase<Thunk> &other) {
+ return !(self == other);
+ }
+
+ template<typename Thunk>
+ inline bool operator<(const CallbackBase<Thunk> &self, const CallbackBase<Thunk> &other) {
+ return self.getEnvironment() < other.getEnvironment() ||
+ (!(other.getEnvironment() < self.getEnvironment()) && self.getThunk() < other.getThunk());
+ }
+
+}
+
+namespace detail {
+
+ template<class Type>
+ struct ConvertFromOpaque {
+ };
+
+ // reference
+
+ template<class T>
+ inline const void *convertToOpaque(const T &t) {
+ return &t;
+ }
+
+ template<class T>
+ struct ConvertFromOpaque<const T &> {
+ static T const &apply(void *p) {
+ return *static_cast<const T *>(p);
+ }
+ };
+
+ template<class T>
+ inline void *convertToOpaque(T &t) {
+ return &t;
+ }
+
+ template<class T>
+ struct ConvertFromOpaque<T &> {
+ static T &apply(void *p) {
+ return *static_cast<T *>( p );
+ }
+ };
+
+ // pointer
+
+ template<class T>
+ inline const void *convertToOpaque(const T *t) {
+ return t;
+ }
+
+ template<class T>
+ struct ConvertFromOpaque<const T *> {
+ static const T *apply(void *p) {
+ return static_cast<const T *>(p);
+ }
+ };
+
+ template<class T>
+ inline void *convertToOpaque(T *t) {
+ return t;
+ }
+
+ template<class T>
+ struct ConvertFromOpaque<T *> {
+ static T *apply(void *p) {
+ return static_cast<T *>(p);
+ }
+ };
+
+ // function pointer
+
+ template<class R, class... Ts>
+ inline const void *convertToOpaque(R(*const &t)(Ts...)) {
+ return &t;
+ }
+
+ template<class R, class... Ts>
+ struct ConvertFromOpaque<R(*const &)(Ts...)> {
+ using Type = R(*)(Ts...);
+
+ static Type const &apply(void *p) {
+ return *static_cast<Type *>(p);
+ }
+ };
+
+ template<class R, class... Ts>
+ inline void *convertToOpaque(R(*&t)(Ts...)) {
+ return &t;
+ }
+
+ template<class R, class... Ts>
+ struct ConvertFromOpaque<R(*&)(Ts...)> {
+ using Type = R(*)(Ts...);
+
+ static Type &apply(void *p) {
+ return *static_cast<Type *>(p);
+ }
+ };
+
+ template<class Caller, class F>
+ class BindFirstOpaqueN;
+ template<class Caller, class R, class FirstBound, class... Ts>
+ class BindFirstOpaqueN<Caller, R(FirstBound, Ts...)> {
+ FirstBound firstBound;
+ public:
+ explicit BindFirstOpaqueN(FirstBound firstBound) : firstBound(firstBound) {
+ }
-template<typename Type>
-class ConvertFromOpaque
-{
-};
+ R operator()(Ts... args) const {
+ return Caller::call(firstBound, args...);
+ }
+
+ FirstBound getBound() const {
+ return firstBound;
+ }
+
+ static R thunk(void *environment, Ts... args) {
+ return thunk_(detail::ConvertFromOpaque<FirstBound>::apply(environment), args...);
+ }
+
+ static R thunk_(FirstBound environment, Ts... args) {
+ return Caller::call(environment, args...);
+ }
+
+ void *getEnvironment() const {
+ return const_cast<void *>(detail::convertToOpaque(firstBound));
+ }
+ };
+
+}
+
+template<class Caller>
+using BindFirstOpaque = detail::BindFirstOpaqueN<Caller, get_func<Caller>>;
-template<typename Type>
-class ConvertFromOpaque<Type&>
-{
-public:
-static Type& apply( void* p ){
- return *static_cast<Type*>( p );
-}
-};
+/// \brief Combines a void pointer with a pointer to a function which operates on a void pointer.
+///
+/// Use with the callback constructors MemberCaller0, ConstMemberCaller0, ReferenceCaller0, ConstReferenceCaller0, PointerCaller0, ConstPointerCaller0 and FreeCaller0.
+template<class F>
+class Callback;
-template<typename Type>
-class ConvertFromOpaque<const Type&>
-{
-public:
-static const Type& apply( void* p ){
- return *static_cast<Type*>( p );
-}
-};
+template<class R, class... Ts>
+class Callback<R(Ts...)> : public detail::CallbackBase<R(*)(void *, Ts...)> {
+ using Base = detail::CallbackBase<R (*)(void *, Ts...)>;
+ static R nullThunk(void *, Ts...) {
+ }
-template<typename Type>
-class ConvertFromOpaque<Type*>
-{
public:
-static Type* apply( void* p ){
- return static_cast<Type*>( p );
-}
-};
+ using func = R(Ts...);
-template<typename Type>
-class ConvertFromOpaque<const Type*>
-{
-public:
-static const Type* apply( void* p ){
- return static_cast<Type*>( p );
-}
-};
+ Callback() : Base(0, nullThunk) {
+ }
-template<typename Caller>
-class BindFirstOpaque
-{
-typedef typename Caller::first_argument_type FirstBound;
-FirstBound firstBound;
-public:
-typedef typename Caller::result_type result_type;
-explicit BindFirstOpaque( FirstBound firstBound ) : firstBound( firstBound ){
-}
-result_type operator()() const {
- return Caller::call( firstBound );
-}
-FirstBound getBound() const {
- return firstBound;
-}
-static result_type thunk( void* environment ){
- return Caller::call( ConvertFromOpaque<FirstBound>::apply( environment ) );
-}
-void* getEnvironment() const {
- return convertToOpaque( firstBound );
-}
-};
+ template<typename Caller>
+ Callback(const BindFirstOpaque<Caller> &caller) : Base(caller.getEnvironment(), BindFirstOpaque<Caller>::thunk) {
+ }
-template<typename Caller>
-class BindFirstOpaque1
-{
-typedef typename Caller::first_argument_type FirstBound;
-FirstBound firstBound;
-public:
-typedef typename Caller::second_argument_type first_argument_type;
-typedef typename Caller::result_type result_type;
-explicit BindFirstOpaque1( FirstBound firstBound ) : firstBound( firstBound ){
-}
-result_type operator()( first_argument_type a1 ) const {
- return Caller::call( firstBound, a1 );
-}
-FirstBound getBound() const {
- return firstBound;
-}
-static result_type thunk( void* environment, first_argument_type a1 ){
- return Caller::call( ConvertFromOpaque<FirstBound>::apply( environment ), a1 );
-}
-void* getEnvironment() const {
- return convertToOpaque( firstBound );
-}
-};
+ Callback(void *environment, typename Base::Thunk function) : Base(environment, function) {
+ }
-template<typename Caller>
-class BindFirstOpaque2
-{
-typedef typename Caller::first_argument_type FirstBound;
-FirstBound firstBound;
-public:
-typedef typename Caller::second_argument_type first_argument_type;
-typedef typename Caller::third_argument_type second_argument_type;
-typedef typename Caller::result_type result_type;
-explicit BindFirstOpaque2( FirstBound firstBound ) : firstBound( firstBound ){
-}
-result_type operator()( first_argument_type a1, second_argument_type a2 ) const {
- return Caller::call( firstBound, a1, a2 );
-}
-FirstBound getBound() const {
- return firstBound;
-}
-static result_type thunk( void* environment, first_argument_type a1, second_argument_type a2 ){
- return Caller::call( ConvertFromOpaque<FirstBound>::apply( environment ), a1, a2 );
-}
-void* getEnvironment() const {
- return convertToOpaque( firstBound );
-}
+ R operator()(Ts... args) const {
+ return Base::getThunk()(Base::getEnvironment(), args...);
+ }
};
-template<typename Caller>
-class BindFirstOpaque3
-{
-typedef typename Caller::first_argument_type FirstBound;
-FirstBound firstBound;
-public:
-typedef typename Caller::second_argument_type first_argument_type;
-typedef typename Caller::third_argument_type second_argument_type;
-typedef typename Caller::fourth_argument_type third_argument_type;
-typedef typename Caller::result_type result_type;
-explicit BindFirstOpaque3( FirstBound firstBound ) : firstBound( firstBound ){
-}
-result_type operator()( first_argument_type a1, second_argument_type a2, third_argument_type a3 ) const {
- return Caller::call( firstBound, a1, a2, a3 );
-}
-FirstBound getBound() const {
- return firstBound;
-}
-static result_type thunk( void* environment, first_argument_type a1, second_argument_type a2, third_argument_type a3 ){
- return Caller::call( ConvertFromOpaque<FirstBound>::apply( environment ), a1, a2, a3 );
-}
-void* getEnvironment() const {
- return convertToOpaque( firstBound );
-}
-};
-
-template<typename Thunk_>
-class CallbackBase
-{
-void* m_environment;
-Thunk_ m_thunk;
-public:
-typedef Thunk_ Thunk;
-CallbackBase( void* environment, Thunk function ) : m_environment( environment ), m_thunk( function ){
-}
-void* getEnvironment() const {
- return m_environment;
-}
-Thunk getThunk() const {
- return m_thunk;
-}
-};
-
-template<typename Thunk>
-inline bool operator==( const CallbackBase<Thunk>& self, const CallbackBase<Thunk>& other ){
- return self.getEnvironment() == other.getEnvironment() && self.getThunk() == other.getThunk();
-}
-template<typename Thunk>
-inline bool operator!=( const CallbackBase<Thunk>& self, const CallbackBase<Thunk>& other ){
- return !( self == other );
-}
-template<typename Thunk>
-inline bool operator<( const CallbackBase<Thunk>& self, const CallbackBase<Thunk>& other ){
- return self.getEnvironment() < other.getEnvironment() ||
- ( !( other.getEnvironment() < self.getEnvironment() ) && self.getThunk() < other.getThunk() );
-}
-
+namespace detail {
+ template<class F>
+ struct Arglist;
-/// \brief Combines a void pointer with a pointer to a function which operates on a void pointer.
-///
-/// Use with the callback constructors MemberCaller, ConstMemberCaller, ReferenceCaller, ConstReferenceCaller, PointerCaller, ConstPointerCaller and FreeCaller.
-template<typename Result>
-class Callback0 : public CallbackBase<Result ( * )( void* )>
-{
-typedef CallbackBase<Result ( * )( void* )> Base;
-static Result nullThunk( void* ){
-}
+ template<class R, class Head, class... Ts>
+ struct Arglist<R(Head, Ts...)> {
+ using type = R(Head, Ts...);
-public:
-typedef Result result_type;
-
-Callback0() : Base( 0, nullThunk ){
-}
-template<typename Caller>
-Callback0( const BindFirstOpaque<Caller>& caller ) : Base( caller.getEnvironment(), BindFirstOpaque<Caller>::thunk ){
-}
-Callback0( void* environment, typename Base::Thunk function ) : Base( environment, function ){
-}
-result_type operator()() const {
- return Base::getThunk() ( Base::getEnvironment() );
-}
-};
+ template <class Unshift>
+ using unshift = Arglist<R(Unshift, Head, Ts...)>;
-template<typename Caller>
-inline Callback0<typename Caller::result_type> makeCallback0( const Caller& caller, typename Caller::first_argument_type callee ){
- return Callback0<typename Caller::result_type>( BindFirstOpaque<Caller>( callee ) );
-}
-template<typename Caller>
-inline Callback0<typename Caller::result_type> makeStatelessCallback0( const Caller& caller ){
- return makeCallback0( Caller0To1<Caller>(), 0 );
-}
-
-typedef Callback0<void> Callback;
-
-
-
-/// \brief Combines a void pointer with a pointer to a function which operates on a void pointer and one other argument.
-///
-/// Use with the callback constructors MemberCaller1, ConstMemberCaller1, ReferenceCaller1, ConstReferenceCaller1, PointerCaller1, ConstPointerCaller1 and FreeCaller1.
-template<typename FirstArgument, typename Result>
-class Callback1 : public CallbackBase<Result ( * )( void*, FirstArgument )>
-{
-typedef CallbackBase<Result ( * )( void*, FirstArgument )> Base;
-static Result nullThunk( void*, FirstArgument ){
-}
-
-public:
-typedef FirstArgument first_argument_type;
-typedef Result result_type;
-
-Callback1() : Base( 0, nullThunk ){
-}
-template<typename Caller>
-Callback1( const BindFirstOpaque1<Caller>& caller ) : Base( caller.getEnvironment(), BindFirstOpaque1<Caller>::thunk ){
-}
-Callback1( void* environment, typename Base::Thunk function ) : Base( environment, function ){
-}
-result_type operator()( FirstArgument firstArgument ) const {
- return Base::getThunk() ( Base::getEnvironment(), firstArgument );
-}
-};
-
-template<typename Caller>
-inline Callback1<typename Caller::second_argument_type, typename Caller::result_type> makeCallback1( const Caller& caller, typename Caller::first_argument_type callee ){
- return Callback1<typename Caller::second_argument_type, typename Caller::result_type>( BindFirstOpaque1<Caller>( callee ) );
-}
-template<typename Caller>
-inline Callback1<typename Caller::second_argument_type, typename Caller::result_type> makeStatelessCallback1( const Caller& caller ){
- return makeCallback1( Caller1To2<Caller>(), 0 );
-}
+ using shift = Arglist<R(Ts...)>;
+ };
+ template<class R, class... Ts>
+ struct Arglist<R(Ts...)> {
+ using type = R(Ts...);
-/// \brief Combines a void pointer with a pointer to a function which operates on a void pointer and two other arguments.
-///
-template<typename FirstArgument, typename SecondArgument, typename Result>
-class Callback2 : public CallbackBase<Result ( * )( void*, FirstArgument, SecondArgument )>
-{
-typedef CallbackBase<Result ( * )( void*, FirstArgument, SecondArgument )> Base;
-static Result nullThunk( void*, FirstArgument, SecondArgument ){
-}
+ template <class Unshift>
+ using unshift = Arglist<R(Unshift, Ts...)>;
+ };
-public:
-typedef FirstArgument first_argument_type;
-typedef SecondArgument second_argument_type;
-typedef Result result_type;
+ template<class F>
+ using ArgShift = typename detail::Arglist<F>::shift::type;
-Callback2() : Base( 0, nullThunk ){
-}
-template<typename Caller>
-Callback2( const BindFirstOpaque2<Caller>& caller ) : Base( caller.getEnvironment(), BindFirstOpaque2<Caller>::thunk ){
-}
-Callback2( void* environment, typename Base::Thunk function ) : Base( environment, function ){
+ template<class F, class T>
+ using ArgUnshift = typename detail::Arglist<F>::template unshift<T>::type;
}
-result_type operator()( FirstArgument firstArgument, SecondArgument secondArgument ) const {
- return Base::getThunk() ( Base::getEnvironment(), firstArgument, secondArgument );
-}
-};
template<typename Caller>
-inline Callback2<
- typename Caller::second_argument_type,
- typename Caller::third_argument_type,
- typename Caller::result_type
- > makeCallback2( const Caller& caller, typename Caller::first_argument_type callee ){
- return Callback2<
- typename Caller::second_argument_type,
- typename Caller::third_argument_type,
- typename Caller::result_type
- >( BindFirstOpaque2<Caller>( callee ) );
-}
-template<typename Caller>
-inline Callback2<
- typename Caller::first_argument_type,
- typename Caller::second_argument_type,
- typename Caller::result_type
- > makeStatelessCallback2( const Caller& caller ){
- return makeCallback2( Caller2To3<Caller>(), 0 );
+inline Callback<detail::ArgShift<get_func<Caller>>> makeCallback(const Caller &caller, get_argument<Caller, 0> callee) {
+ return BindFirstOpaque<Caller>(callee);
}
+template<class Caller, class F>
+class CallerShiftFirst;
-/// \brief Combines a void pointer with a pointer to a function which operates on a void pointer and three other arguments.
-///
-template<typename FirstArgument, typename SecondArgument, typename ThirdArgument, typename Result>
-class Callback3 : public CallbackBase<Result ( * )( void*, FirstArgument, SecondArgument, ThirdArgument )>
-{
-typedef CallbackBase<Result ( * )( void*, FirstArgument, SecondArgument, ThirdArgument )> Base;
-static Result nullThunk( void*, FirstArgument, SecondArgument, ThirdArgument ){
-}
-
+template<class Caller, class R, class FirstArgument, class... Ts>
+class CallerShiftFirst<Caller, R(FirstArgument, Ts...)> {
public:
-typedef FirstArgument first_argument_type;
-typedef SecondArgument second_argument_type;
-typedef ThirdArgument third_argument_type;
-typedef Result result_type;
+ using func = R(FirstArgument, Ts...);
-Callback3() : Base( 0, nullThunk ){
-}
-template<typename Caller>
-Callback3( const BindFirstOpaque3<Caller>& caller ) : Base( caller.getEnvironment(), BindFirstOpaque3<Caller>::thunk ){
-}
-Callback3( void* environment, typename Base::Thunk function ) : Base( environment, function ){
-}
-result_type operator()( FirstArgument firstArgument, SecondArgument secondArgument, ThirdArgument thirdArgument ) const {
- return Base::getThunk() ( Base::getEnvironment(), firstArgument, secondArgument, thirdArgument );
-}
+ static R call(FirstArgument, Ts... args) {
+ return Caller::call(args...);
+ }
};
template<typename Caller>
-inline Callback3<
- typename Caller::second_argument_type,
- typename Caller::third_argument_type,
- typename Caller::fourth_argument_type,
- typename Caller::result_type
- > makeCallback3( const Caller& caller, typename Caller::first_argument_type callee ){
- return Callback3<
- typename Caller::second_argument_type,
- typename Caller::third_argument_type,
- typename Caller::fourth_argument_type,
- typename Caller::result_type
- >( BindFirstOpaque3<Caller>( callee ) );
+inline Callback<get_func<Caller>> makeStatelessCallback(const Caller &caller) {
+ return makeCallback(CallerShiftFirst<Caller, detail::ArgUnshift<get_func<Caller>, void *>>(), nullptr);
}
-template<typename Caller>
-inline Callback3<
- typename Caller::first_argument_type,
- typename Caller::second_argument_type,
- typename Caller::third_argument_type,
- typename Caller::result_type
- > makeStatelessCallback3( const Caller& caller ){
- return makeCallback3( Caller3To4<Caller>(), 0 );
-}
-
/// \brief Forms a Callback from a non-const Environment reference and a non-const Environment member-function.
-///
-/// \dontinclude generic/callback.cpp
-/// \skipline MemberCaller example
-/// \until end example
-template<typename Environment, void( Environment::*member ) ( )>
-class MemberCaller : public BindFirstOpaque< Member<Environment, void, member> >
-{
-public:
-MemberCaller( Environment& environment ) : BindFirstOpaque< Member<Environment, void, member> >( environment ){
-}
-};
+template<class Environment, class F, MemberFunction<Environment, F> member>
+using MemberCaller = BindFirstOpaque<Member<Environment, F, member>>;
-/// \brief Forms a Callback from a const Environment reference and a const Environment member-function.
+/// \brief Constructs a Callback1 from a non-const \p functor
///
-/// \dontinclude generic/callback.cpp
-/// \skipline MemberCaller example
-/// \until end example
-template<typename Environment, void( Environment::*member ) ( ) const>
-class ConstMemberCaller : public BindFirstOpaque< ConstMember<Environment, void, member> >
-{
-public:
-ConstMemberCaller( const Environment& environment ) : BindFirstOpaque< ConstMember<Environment, void, member> >( environment ){
+/// \param Functor Must define \c first_argument_type and \c operator()(first_argument_type).
+template<typename Functor>
+inline Callback<get_func<Functor>> makeCallback(Functor &functor) {
+ return MemberCaller<Functor, get_func<Functor>, &Functor::operator()>(functor);
}
-};
-/// \brief Forms a Callback from a non-const Environment reference and a const Environment member-function which takes one argument.
-template<typename Environment, typename FirstArgument, void( Environment::*member ) (FirstArgument)>
-class MemberCaller1 : public BindFirstOpaque1< Member1<Environment, FirstArgument, void, member> >
-{
-public:
-MemberCaller1( Environment& environment ) : BindFirstOpaque1< Member1<Environment, FirstArgument, void, member> >( environment ){
-}
-};
+/// \brief Forms a Callback from a const Environment reference and a const Environment member-function.
+template<class Environment, class F, ConstMemberFunction<Environment, F> member>
+using ConstMemberCaller = BindFirstOpaque<ConstMember<Environment, F, member>>;
-/// \brief Forms a Callback from a const Environment reference and a const Environment member-function which takes one argument.
-template<typename Environment, typename FirstArgument, void( Environment::*member ) (FirstArgument) const>
-class ConstMemberCaller1 : public BindFirstOpaque1< ConstMember1<Environment, FirstArgument, void, member> >
-{
-public:
-ConstMemberCaller1( const Environment& environment ) : BindFirstOpaque1< ConstMember1<Environment, FirstArgument, void, member> >( environment ){
+/// \brief Constructs a Callback1 from a const \p functor
+///
+/// \param Functor Must define \c first_argument_type and const \c operator()(first_argument_type).
+template<typename Functor>
+inline Callback<get_func<Functor>> makeCallback(const Functor &functor) {
+ return ConstMemberCaller<Functor, get_func<Functor>, &Functor::operator()>(functor);
}
-};
/// \brief Forms a Callback from a non-const Environment reference and a free function which operates on a non-const Environment reference.
-///
-/// \dontinclude generic/callback.cpp
-/// \skipline ReferenceCaller example
-/// \until end example
-template<typename Environment, void( *func ) (Environment&)>
-class ReferenceCaller : public BindFirstOpaque< Function1<Environment&, void, func> >
-{
-public:
-ReferenceCaller( Environment& environment ) : BindFirstOpaque< Function1<Environment&, void, func> >( environment ){
-}
-};
+template<class Environment, class F, detail::ArgUnshift<F, Environment &> *func>
+using ReferenceCaller = BindFirstOpaque<Function<detail::ArgUnshift<F, Environment &>, func>>;
/// \brief Forms a Callback from a const Environment reference and a free function which operates on a const Environment reference.
-///
-/// \dontinclude generic/callback.cpp
-/// \skipline ReferenceCaller example
-/// \until end example
-template<typename Environment, void( *func ) (const Environment&)>
-class ConstReferenceCaller : public BindFirstOpaque< Function1<const Environment&, void, func> >
-{
-public:
-ConstReferenceCaller( const Environment& environment ) : BindFirstOpaque< Function1<const Environment&, void, func> >( environment ){
-}
-};
-
-/// \brief Forms a Callback from a non-const Environment reference and a free function which operates on a non-const Environment reference and one other argument.
-template<typename Environment, typename FirstArgument, void( *func ) ( Environment&, FirstArgument )>
-class ReferenceCaller1 : public BindFirstOpaque1< Function2<Environment&, FirstArgument, void, func> >
-{
-public:
-ReferenceCaller1( Environment& environment ) : BindFirstOpaque1< Function2<Environment&, FirstArgument, void, func> >( environment ){
-}
-};
-
-/// \brief Forms a Callback from a const Environment reference and a free function which operates on a const Environment reference and one other argument.
-template<typename Environment, typename FirstArgument, void( *func ) ( const Environment&, FirstArgument )>
-class ConstReferenceCaller1 : public BindFirstOpaque1< Function2<const Environment&, FirstArgument, void, func> >
-{
-public:
-ConstReferenceCaller1( const Environment& environment ) : BindFirstOpaque1< Function2<const Environment&, FirstArgument, void, func> >( environment ){
-}
-};
+template<class Environment, class F, detail::ArgUnshift<F, const Environment &> *func>
+using ConstReferenceCaller = BindFirstOpaque<Function<detail::ArgUnshift<F, const Environment &>, func>>;
/// \brief Forms a Callback from a non-const Environment pointer and a free function which operates on a non-const Environment pointer.
-template<typename Environment, void( *func ) (Environment*)>
-class PointerCaller : public BindFirstOpaque< Function1<Environment*, void, func> >
-{
-public:
-PointerCaller( Environment* environment ) : BindFirstOpaque< Function1<Environment*, void, func> >( environment ){
-}
-};
+template<class Environment, class F, detail::ArgUnshift<F, Environment *> *func>
+using PointerCaller = BindFirstOpaque<Function<detail::ArgUnshift<F, Environment *>, func>>;
/// \brief Forms a Callback from a const Environment pointer and a free function which operates on a const Environment pointer.
-template<typename Environment, void( *func ) (const Environment*)>
-class ConstPointerCaller : public BindFirstOpaque< Function1<const Environment*, void, func> >
-{
-public:
-ConstPointerCaller( const Environment* environment ) : BindFirstOpaque< Function1<const Environment*, void, func> >( environment ){
-}
-};
+template<class Environment, class F, detail::ArgUnshift<F, const Environment *> *func>
+using ConstPointerCaller = BindFirstOpaque<Function<detail::ArgUnshift<F, const Environment *>, func>>;
-/// \brief Forms a Callback from a non-const Environment pointer and a free function which operates on a non-const Environment pointer and one other argument.
-template<typename Environment, typename FirstArgument, void( *func ) ( Environment*, FirstArgument )>
-class PointerCaller1 : public BindFirstOpaque1< Function2<Environment*, FirstArgument, void, func> >
-{
-public:
-PointerCaller1( Environment* environment ) : BindFirstOpaque1< Function2<Environment*, FirstArgument, void, func> >( environment ){
-}
-};
+namespace detail {
+ template<class Caller, class F>
+ class FreeCaller : public BindFirstOpaque<CallerShiftFirst<Caller, detail::ArgUnshift<F, void *>>> {
+ public:
+ FreeCaller() : BindFirstOpaque<CallerShiftFirst<Caller, detail::ArgUnshift<F, void *>>>(nullptr) {
+ }
+ };
-/// \brief Forms a Callback from a const Environment pointer and a free function which operates on a const Environment pointer and one other argument.
-template<typename Environment, typename FirstArgument, void( *func ) ( const Environment*, FirstArgument )>
-class ConstPointerCaller1 : public BindFirstOpaque1< Function2<const Environment*, FirstArgument, void, func> >
-{
-public:
-ConstPointerCaller1( const Environment* environment ) : BindFirstOpaque1< Function2<const Environment*, FirstArgument, void, func> >( environment ){
-}
-};
+ template<class F>
+ struct FreeCallerWrapper;
-/// \brief Forms a Callback from a free function which takes no arguments.
-template<void( *func ) ( )>
-class FreeCaller : public BindFirstOpaque< Caller0To1< Function0<void, func> > >
-{
-public:
-FreeCaller() : BindFirstOpaque< Caller0To1< Function0<void, func> > >( 0 ){
-}
-};
+ template<class R, class... Ts>
+ struct FreeCallerWrapper<R(Ts...)> {
+ using func = R(void *, Ts...);
-/// \brief Forms a Callback from a free function which takes a single argument.
-template<typename FirstArgument, void( *func ) (FirstArgument)>
-class FreeCaller1 : public BindFirstOpaque1< Caller1To2< Function1<FirstArgument, void, func> > >
-{
-public:
-FreeCaller1() : BindFirstOpaque1< Caller1To2< Function1<FirstArgument, void, func> > >( 0 ){
+ static R call(void *f, Ts... args) {
+ // ideally, we'd get the implementation of the function type directly. Instead, it's passed in
+ return reinterpret_cast<R(*)(Ts...)>(f)(args...);
+ }
+ };
}
-};
+/// \brief Forms a Callback from a free function
+template<class F, F *func>
+using FreeCaller = detail::FreeCaller<Function<F, func>, F>;
-/// \brief Constructs a Callback from a non-const \p functor with zero arguments.
-///
-/// \param Functor Must define \c operator()().
-template<typename Functor>
-inline Callback makeCallback( Functor& functor ){
- return Callback( MemberCaller<Functor, &Functor::operator()>( functor ) );
-}
-
-/// \brief Constructs a Callback from a const \p functor with zero arguments.
-///
-/// \param Functor Must define const \c operator()().
-template<typename Functor>
-inline Callback makeCallback( const Functor& functor ){
- return Callback( ConstMemberCaller<Functor, &Functor::operator()>( functor ) );
+template<class R, class... Ts>
+inline Callback<R(Ts...)> makeCallbackF(R(*func)(Ts...)) {
+ void *pVoid = reinterpret_cast<void *>(func);
+ return BindFirstOpaque<detail::FreeCallerWrapper<R(Ts...)>>(pVoid);
}
-/// \brief Constructs a Callback1 from a non-const \p functor with one argument.
-///
-/// \param Functor Must define \c first_argument_type and \c operator()(first_argument_type).
-template<typename Functor>
-inline Callback1<typename Functor::first_argument_type> makeCallback1( Functor& functor ){
- typedef typename Functor::first_argument_type FirstArgument;
- return Callback1<FirstArgument>( MemberCaller1<Functor, FirstArgument, &Functor::operator()>( functor ) );
-}
-
-/// \brief Constructs a Callback1 from a const \p functor with one argument.
-///
-/// \param Functor Must define \c first_argument_type and const \c operator()(first_argument_type).
-template<typename Functor>
-inline Callback1<typename Functor::first_argument_type> makeCallback1( const Functor& functor ){
- typedef typename Functor::first_argument_type FirstArgument;
- return Callback1<FirstArgument>( ConstMemberCaller1<Functor, FirstArgument, &Functor::operator()>( functor ) );
-}
-
-
-typedef Callback1<bool> BoolImportCallback;
-typedef Callback1<const BoolImportCallback&> BoolExportCallback;
-
-typedef Callback1<int> IntImportCallback;
-typedef Callback1<const IntImportCallback&> IntExportCallback;
-
-typedef Callback1<float> FloatImportCallback;
-typedef Callback1<const FloatImportCallback&> FloatExportCallback;
-
-typedef Callback1<const char*> StringImportCallback;
-typedef Callback1<const StringImportCallback&> StringExportCallback;
-
-typedef Callback1<std::size_t> SizeImportCallback;
-typedef Callback1<const SizeImportCallback&> SizeExportCallback;
-
-
#endif
projects / xonotic / netradiant.git / blobdiff