virtual_support::VirtualMethod Class Reference

Holder of a "virtual method". More...

#include <fastarduino/virtual.h>

Public Types
using	METHOD = void(*)(void *)
	The type of function that will get the call.

Public Member Functions
	VirtualMethod (const VirtualMethod &)=default
VirtualMethod &	operator= (const VirtualMethod &)=default
	VirtualMethod (METHOD method=nullptr, void *arg=nullptr)
	Create a VirtualMethod with the given arguments. More...
void	operator() () const
	Call dispatching method.

Detailed Description

Holder of a "virtual method".

Typical use:

class A {
public:
    A(VirtualMethod::METHOD callback, void* arg) : callback_{callback, arg} {}
 
    void call_back() {
        callback_();
    }
private:
    VirtualMethod callback_;
}
 
class B {
public:
    B() : a{B::callback, this} {}
private:
    // this is the actual "virtual" method
    void do_something() {
        ...
    }
 
    // this method is in hcarge of dispatching to the actual "virtual" method
    static void callback(void* arg) {
        ((B*) arg)->do_something();
    }
 
    A a;
}

Definition at line 69 of file virtual.h.

Constructor & Destructor Documentation

VirtualMethod()

virtual_support::VirtualMethod::VirtualMethod ( METHOD  method = nullptr, void *  arg = nullptr  )

inlineexplicit

Create a VirtualMethod with the given arguments.

Parameters

method	the method that will receive the call and shall dispatch to the proper method of the proper object, which pointer is given by arg
arg	a pointer to the object that should receive the actual dispatch

Definition at line 86 of file virtual.h.

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The documentation for this class was generated from the following file:

• fastarduino/virtual.h