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SqMod/vendor/POCO/Util/include/Poco/Util/OptionCallback.h
Sandu Liviu Catalin 4a6bfc086c Major plugin refactor and cleanup.
Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.
2021-01-30 08:51:39 +02:00

110 lines
2.1 KiB
C++

//
// OptionCallback.h
//
// Library: Util
// Package: Options
// Module: OptionCallback
//
// Definition of the OptionCallback class.
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Util_OptionCallback_INCLUDED
#define Util_OptionCallback_INCLUDED
#include "Poco/Util/Util.h"
namespace Poco {
namespace Util {
class Util_API AbstractOptionCallback
/// Base class for OptionCallback.
{
public:
virtual void invoke(const std::string& name, const std::string& value) const = 0;
/// Invokes the callback member function.
virtual AbstractOptionCallback* clone() const = 0;
/// Creates and returns a copy of the object.
virtual ~AbstractOptionCallback();
/// Destroys the AbstractOptionCallback.
protected:
AbstractOptionCallback();
AbstractOptionCallback(const AbstractOptionCallback&);
};
template <class C>
class OptionCallback: public AbstractOptionCallback
/// This class is used as an argument to Option::callback().
///
/// It stores a pointer to an object and a pointer to a member
/// function of the object's class.
{
public:
typedef void (C::*Callback)(const std::string& name, const std::string& value);
OptionCallback(C* pObject, Callback method):
_pObject(pObject),
_method(method)
/// Creates the OptionCallback for the given object and member function.
{
poco_check_ptr (pObject);
}
OptionCallback(const OptionCallback& cb):
AbstractOptionCallback(cb),
_pObject(cb._pObject),
_method(cb._method)
/// Creates an OptionCallback from another one.
{
}
~OptionCallback()
/// Destroys the OptionCallback.
{
}
OptionCallback& operator = (const OptionCallback& cb)
{
if (&cb != this)
{
this->_pObject = cb._pObject;
this->_method = cb._method;
}
return *this;
}
void invoke(const std::string& name, const std::string& value) const
{
(_pObject->*_method)(name, value);
}
AbstractOptionCallback* clone() const
{
return new OptionCallback(_pObject, _method);
}
private:
OptionCallback();
C* _pObject;
Callback _method;
};
} } // namespace Poco::Util
#endif // Util_OptionCallback_INCLUDED