gecko-dev/xpcom/components/GenericFactory.h

39 строки
1.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_GenericFactory_h
#define mozilla_GenericFactory_h
#include "nsIFactory.h"
namespace mozilla {
/**
* A generic factory which uses a constructor function to create instances.
* This class is intended for use by the component manager and the generic
* module.
*/
class GenericFactory final : public nsIFactory {
~GenericFactory() = default;
public:
typedef nsresult (*ConstructorProcPtr)(const nsIID& aIID, void** aResult);
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIFACTORY
explicit GenericFactory(ConstructorProcPtr aCtor) : mCtor(aCtor) {
NS_ASSERTION(mCtor, "GenericFactory with no constructor");
}
private:
ConstructorProcPtr mCtor;
};
} // namespace mozilla
#endif // mozilla_GenericFactory_h