Callable< R, As > Class Template Reference

#include <Pt/Callable.h>

An interface for all callable entities. More...

Inherits Invokable< As... >.

Public Member Functions
virtual Callable *	clone () const =0
	Returns a copy of this instance.
virtual R	call (As... args) const =0
	Calls the callable entity and returns its result.
R	operator() (As... args) const
	Same as call().
virtual void	invoke (As... args) const =0
	Invokes the invokable entity with the given arguments.

Related Symbols
(Note that these are not member symbols.)
template<typename R, typename BaseT, typename ClassT, typename... As>
ConstMethod< R, ClassT, As... >	callable (ClassT &object, R(BaseT::*method)(As...) const)
	Returns a ConstMethod object for the given object/method pair.
template<typename R, typename... As>
Function< R, As... >	callable (R(*function)(As...))
	Returns a Function wrapper for the given free/static function.
template<typename R, typename BaseT, typename ClassT, typename... As>
Method< R, ClassT, As... >	callable (ClassT &object, R(BaseT::*method)(As...))
	Returns a Method object for the given object/method pair.

Detailed Description

template<typename R, typename... As>
class Pt::Callable< R, As >

The Callable interface extends the Invokable interface to handle return values. The variadic template argument list determines the callable signature.

Member Function Documentation

clone()

template<typename R, typename... As>

virtual Callable * clone ( ) const

pure virtual

A copy of the instance is created with new is returned. Ownership is transfered to the caller, who has to delete it.

Implemented in ConstMethod< R, ClassT, As >, ConstMethod< R, ClassT, As... >, Function< R, As >, Function< R, As... >, Lambda< L, R, A >, Lambda< L, R, A... >, Method< R, ClassT, As >, Method< R, ClassT, As... >, Method< R, Pt::Delegate< R, As... >, As... >, Method< void, C >, Method< void, C, A1 >, Method< void, C, A1, A2 >, Method< void, C, A1, A2, A3 >, Method< void, C, A1, A2, A3, A4 >, Method< void, C, A1, A2, A3, A4, A5 >, Method< void, C, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void >, and Method< void, Pt::Signal< As... >, As... >.

call()

template<typename R, typename... As>

virtual R call ( As... args ) const

pure virtual

This is the primary non-virtual entry point used by Delegate and other callers that need the return value. All derived classes must implement this.

Implemented in ConstMethod< R, ClassT, As >, ConstMethod< R, ClassT, As... >, Function< R, As >, Function< R, As... >, Method< R, ClassT, As >, Method< R, ClassT, As... >, Method< R, Pt::Delegate< R, As... >, As... >, Method< void, C >, Method< void, C, A1 >, Method< void, C, A1, A2 >, Method< void, C, A1, A2, A3 >, Method< void, C, A1, A2, A3, A4 >, Method< void, C, A1, A2, A3, A4, A5 >, Method< void, C, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void >, and Method< void, Pt::Signal< As... >, As... >.

invoke()

template<typename R, typename... As>

virtual void invoke ( As... args ) const

pure virtual

The passed arguments must match the template parameters.

Implements Invokable< As... >.

Implemented in ConstMethod< R, ClassT, As >, ConstMethod< R, ClassT, As... >, Function< R, As >, Function< R, As... >, Method< R, ClassT, As >, Method< R, ClassT, As... >, Method< R, Pt::Delegate< R, As... >, As... >, Method< void, C >, Method< void, C, A1 >, Method< void, C, A1, A2 >, Method< void, C, A1, A2, A3 >, Method< void, C, A1, A2, A3, A4 >, Method< void, C, A1, A2, A3, A4, A5 >, Method< void, C, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void, Pt::Void >, and Method< void, Pt::Signal< As... >, As... >.