mirror of
https://github.com/zhigang1992/react-native.git
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9a64755a18
Summary: That's bummer that we have to do it, but it's actually reasonable. Files in `core` and `events` depend on each other creating circular dependencies and other similar hard problem. Reviewed By: mdvacca Differential Revision: D14195022 fbshipit-source-id: 96a44ae28631cc9ccd7d7de72a94526f9e0dd12a
31 lines
790 B
C++
31 lines
790 B
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <memory>
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namespace facebook {
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namespace react {
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/*
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* We need this types only to ensure type-safety when we deal with them.
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* Conceptually, they are opaque pointers to some types that derived from those
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* classes.
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*
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* `EventHandler` is managed as a `unique_ptr`, so it must have a *virtual*
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* destructor to allow proper deallocation having only a pointer
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* to the base (`EventHandler`) class.
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*/
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struct EventHandler {
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virtual ~EventHandler() = default;
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};
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using UniqueEventHandler = std::unique_ptr<const EventHandler>;
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} // namespace react
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} // namespace facebook
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