This file is indexed.

/usr/include/MYGUI/MyGUI_DelegateImplement.h is in libmygui-dev 3.2.2+dfsg-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */

namespace delegates
{

	#define MYGUI_COMBINE(a, b)						MYGUI_COMBINE1(a, b)
	#define MYGUI_COMBINE1(a, b)					a##b

	#define MYGUI_I_DELEGATE						MYGUI_COMBINE(IDelegate, MYGUI_SUFFIX)

	#define MYGUI_C_STATIC_DELEGATE					MYGUI_COMBINE(CStaticDelegate, MYGUI_SUFFIX)
	#define MYGUI_C_METHOD_DELEGATE					MYGUI_COMBINE(CMethodDelegate, MYGUI_SUFFIX)

	#define MYGUI_C_DELEGATE						MYGUI_COMBINE(CDelegate, MYGUI_SUFFIX)
	#define MYGUI_C_MULTI_DELEGATE					MYGUI_COMBINE(CMultiDelegate, MYGUI_SUFFIX)


	// базовый класс всех делегатов
	MYGUI_TEMPLATE MYGUI_TEMPLATE_PARAMS
	class MYGUI_I_DELEGATE
	{
	public:
		virtual ~MYGUI_I_DELEGATE() { }
		virtual bool isType(const std::type_info& _type) = 0;
		virtual void invoke(MYGUI_PARAMS) = 0;
		virtual bool compare(MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS* _delegate) const = 0;
		virtual bool compare(IDelegateUnlink* _unlink) const
		{
			return false;
		}
	};


	// делегат для статической функции
	MYGUI_TEMPLATE MYGUI_TEMPLATE_PARAMS
	class MYGUI_C_STATIC_DELEGATE : public MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS
	{
	public:
		typedef void (*Func)(MYGUI_PARAMS);

		MYGUI_C_STATIC_DELEGATE (Func _func) : mFunc(_func) { }

		virtual bool isType(const std::type_info& _type)
		{
			return typeid(MYGUI_C_STATIC_DELEGATE MYGUI_TEMPLATE_ARGS) == _type;
		}

		virtual void invoke(MYGUI_PARAMS)
		{
			mFunc(MYGUI_ARGS);
		}

		virtual bool compare(MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS* _delegate) const
		{
			if (nullptr == _delegate || !_delegate->isType(typeid(MYGUI_C_STATIC_DELEGATE MYGUI_TEMPLATE_ARGS))) return false;
			MYGUI_C_STATIC_DELEGATE MYGUI_TEMPLATE_ARGS* cast = static_cast<MYGUI_C_STATIC_DELEGATE MYGUI_TEMPLATE_ARGS*>(_delegate);
			return cast->mFunc == mFunc;
		}
		virtual bool compare(IDelegateUnlink* _unlink) const
		{
			return false;
		}

	private:
		Func mFunc;
	};


	// делегат для метода класса
	template MYGUI_T_TEMPLATE_PARAMS
	class MYGUI_C_METHOD_DELEGATE : public MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS
	{
	public:
		typedef void (T::*Method)(MYGUI_PARAMS);

		MYGUI_C_METHOD_DELEGATE(IDelegateUnlink* _unlink, T* _object, Method _method) : mUnlink(_unlink), mObject(_object), mMethod(_method) { }

		virtual bool isType(const std::type_info& _type)
		{
			return typeid(MYGUI_C_METHOD_DELEGATE MYGUI_T_TEMPLATE_ARGS) == _type;
		}

		virtual void invoke(MYGUI_PARAMS)
		{
			(mObject->*mMethod)(MYGUI_ARGS);
		}

		virtual bool compare(MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS* _delegate) const
		{
			if (nullptr == _delegate || !_delegate->isType(typeid(MYGUI_C_METHOD_DELEGATE MYGUI_T_TEMPLATE_ARGS))) return false;
			MYGUI_C_METHOD_DELEGATE MYGUI_T_TEMPLATE_ARGS* cast = static_cast< MYGUI_C_METHOD_DELEGATE MYGUI_T_TEMPLATE_ARGS* >(_delegate);
			return cast->mObject == mObject && cast->mMethod == mMethod;
		}

		virtual bool compare(IDelegateUnlink* _unlink) const
		{
			return mUnlink == _unlink;
		}

	private:
		IDelegateUnlink* mUnlink;
		T* mObject;
		Method mMethod;
	};

} // namespace delegates

// шаблон для создания делегата статической функции
// параметры : указатель на функцию
// пример : newDelegate(funk_name);
// пример : newDelegate(class_name::static_method_name);
MYGUI_TEMPLATE MYGUI_TEMPLATE_PARAMS
inline delegates::MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS* newDelegate(void (*_func)(MYGUI_PARAMS))
{
	return new delegates::MYGUI_C_STATIC_DELEGATE MYGUI_TEMPLATE_ARGS (_func);
}


// шаблон для создания делегата метода класса
// параметры : указатель на объект класса и указатель на метод класса
// пример : newDelegate(&object_name, &class_name::method_name);
template MYGUI_T_TEMPLATE_PARAMS
inline delegates::MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS* newDelegate(T* _object, void (T::*_method)(MYGUI_PARAMS))
{
	return new delegates::MYGUI_C_METHOD_DELEGATE MYGUI_T_TEMPLATE_ARGS (delegates::GetDelegateUnlink(_object), _object, _method);
}

namespace delegates
{
	// шаблон класса делегата
	MYGUI_TEMPLATE MYGUI_TEMPLATE_PARAMS
	class MYGUI_C_DELEGATE
	{
	public:
		typedef MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS IDelegate;

		MYGUI_C_DELEGATE () : mDelegate(nullptr) { }
		MYGUI_C_DELEGATE (const MYGUI_C_DELEGATE MYGUI_TEMPLATE_ARGS& _event) : mDelegate(nullptr)
		{
			// take ownership
			mDelegate = _event.mDelegate;
			const_cast< MYGUI_C_DELEGATE MYGUI_TEMPLATE_ARGS& >(_event).mDelegate = nullptr;
		}

		~MYGUI_C_DELEGATE ()
		{
			clear();
		}

		bool empty() const
		{
			return mDelegate == nullptr;
		}

		void clear()
		{
			delete mDelegate;
			mDelegate = nullptr;
		}

		MYGUI_C_DELEGATE MYGUI_TEMPLATE_ARGS& operator=(IDelegate* _delegate)
		{
			delete mDelegate;
			mDelegate = _delegate;
			return *this;
		}

		MYGUI_C_DELEGATE MYGUI_TEMPLATE_ARGS& operator=(const MYGUI_C_DELEGATE MYGUI_TEMPLATE_ARGS& _event)
		{
			if (this == &_event)
				return *this;

			// take ownership
			IDelegate* del = _event.mDelegate;
			const_cast< MYGUI_C_DELEGATE MYGUI_TEMPLATE_ARGS& >(_event).mDelegate = nullptr;

			if (mDelegate != nullptr && !mDelegate->compare(del))
				delete mDelegate;

			mDelegate = del;

			return *this;
		}

		void operator()(MYGUI_PARAMS)
		{
			if (mDelegate == nullptr) return;
			mDelegate->invoke(MYGUI_ARGS);
		}

	private:
		IDelegate* mDelegate;
	};


	// шаблон класса мульти делегата
	MYGUI_TEMPLATE MYGUI_TEMPLATE_PARAMS
	class MYGUI_C_MULTI_DELEGATE
	{
	public:
		typedef MYGUI_I_DELEGATE MYGUI_TEMPLATE_ARGS IDelegate;
		typedef MYGUI_TYPENAME std::list<IDelegate* /*, Allocator<IDelegate*>*/ > ListDelegate;
		typedef MYGUI_TYPENAME ListDelegate::iterator ListDelegateIterator;
		typedef MYGUI_TYPENAME ListDelegate::const_iterator ConstListDelegateIterator;

		MYGUI_C_MULTI_DELEGATE () { }
		~MYGUI_C_MULTI_DELEGATE ()
		{
			clear();
		}

		bool empty() const
		{
			for (ConstListDelegateIterator iter = mListDelegates.begin(); iter != mListDelegates.end(); ++iter)
			{
				if (*iter) return false;
			}
			return true;
		}

		void clear()
		{
			for (ListDelegateIterator iter = mListDelegates.begin(); iter != mListDelegates.end(); ++iter)
			{
				if (*iter)
				{
					delete (*iter);
					(*iter) = nullptr;
				}
			}
		}

		void clear(IDelegateUnlink* _unlink)
		{
			for (ListDelegateIterator iter = mListDelegates.begin(); iter != mListDelegates.end(); ++iter)
			{
				if ((*iter) && (*iter)->compare(_unlink))
				{
					delete (*iter);
					(*iter) = nullptr;
				}
			}
		}

		MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& operator+=(IDelegate* _delegate)
		{
			for (ListDelegateIterator iter = mListDelegates.begin(); iter != mListDelegates.end(); ++iter)
			{
				if ((*iter) && (*iter)->compare(_delegate))
				{
					MYGUI_EXCEPT("Trying to add same delegate twice.");
				}
			}
			mListDelegates.push_back(_delegate);
			return *this;
		}

		MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& operator-=(IDelegate* _delegate)
		{
			for (ListDelegateIterator iter = mListDelegates.begin(); iter != mListDelegates.end(); ++iter)
			{
				if ((*iter) && (*iter)->compare(_delegate))
				{
					// проверяем на идентичность делегатов
					if ((*iter) != _delegate) delete (*iter);
					(*iter) = nullptr;
					break;
				}
			}
			delete _delegate;
			return *this;
		}

		void operator()(MYGUI_PARAMS)
		{
			ListDelegateIterator iter = mListDelegates.begin();
			while (iter != mListDelegates.end())
			{
				if (nullptr == (*iter))
				{
					iter = mListDelegates.erase(iter);
				}
				else
				{
					(*iter)->invoke(MYGUI_ARGS);
					++iter;
				}
			}
		}

		MYGUI_C_MULTI_DELEGATE (const MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& _event)
		{
			// take ownership
			ListDelegate del = _event.mListDelegates;
			const_cast< MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& >(_event).mListDelegates.clear();

			safe_clear(del);

			mListDelegates = del;
		}

		MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& operator=(const MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& _event)
		{
			// take ownership
			ListDelegate del = _event.mListDelegates;
			const_cast< MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& >(_event).mListDelegates.clear();

			safe_clear(del);

			mListDelegates = del;

			return *this;
		}

		MYGUI_OBSOLETE("use : operator += ")
		MYGUI_C_MULTI_DELEGATE MYGUI_TEMPLATE_ARGS& operator=(IDelegate* _delegate)
		{
			clear();
			*this += _delegate;
			return *this;
		}

	private:
		void safe_clear(ListDelegate& _delegates)
		{
			for (ListDelegateIterator iter = mListDelegates.begin(); iter != mListDelegates.end(); ++iter)
			{
				if (*iter)
				{
					IDelegate* del = (*iter);
					(*iter) = nullptr;
					delete_is_not_found(del, _delegates);
				}
			}
		}

		void delete_is_not_found(IDelegate* _del, ListDelegate& _delegates)
		{
			for (ListDelegateIterator iter = _delegates.begin(); iter != _delegates.end(); ++iter)
			{
				if ((*iter) && (*iter)->compare(_del))
				{
					return;
				}
			}

			delete _del;
		}

	private:
		ListDelegate mListDelegates;
	};


	#undef MYGUI_COMBINE
	#undef MYGUI_COMBINE1

	#undef MYGUI_I_DELEGATE

	#undef MYGUI_C_STATIC_DELEGATE
	#undef MYGUI_C_METHOD_DELEGATE

	#undef MYGUI_C_DELEGATE
	#undef MYGUI_C_MULTI_DELEGATE

	#undef MYGUI_SUFFIX
	#undef MYGUI_TEMPLATE
	#undef MYGUI_TEMPLATE_PARAMS
	#undef MYGUI_TEMPLATE_ARGS
	#undef MYGUI_T_TEMPLATE_PARAMS
	#undef MYGUI_T_TEMPLATE_ARGS
	#undef MYGUI_PARAMS
	#undef MYGUI_ARGS
	#undef MYGUI_TYPENAME

} // namespace delegates