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			45 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
		
		
			
		
	
	
			45 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
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								/*
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								 *  Created by Phil Nash on 15/6/2018.
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								 *
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								 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
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								 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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								 */
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								#ifndef TWOBLUECUBES_CATCH_SINGLETONS_HPP_INCLUDED
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								#define TWOBLUECUBES_CATCH_SINGLETONS_HPP_INCLUDED
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								namespace Catch {
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								    struct ISingleton {
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								        virtual ~ISingleton();
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								    };
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								    void addSingleton( ISingleton* singleton );
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								    void cleanupSingletons();
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								    template<typename SingletonImplT, typename InterfaceT = SingletonImplT, typename MutableInterfaceT = InterfaceT>
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								    class Singleton : SingletonImplT, public ISingleton {
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								        static auto getInternal() -> Singleton* {
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								            static Singleton* s_instance = nullptr;
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								            if( !s_instance ) {
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								                s_instance = new Singleton;
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								                addSingleton( s_instance );
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								            }
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								            return s_instance;
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								        }
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								    public:
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								        static auto get() -> InterfaceT const& {
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								            return *getInternal();
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								        }
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								        static auto getMutable() -> MutableInterfaceT& {
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								            return *getInternal();
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								        }
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								    };
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								} // namespace Catch
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								#endif // TWOBLUECUBES_CATCH_SINGLETONS_HPP_INCLUDED
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