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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_CALLBACK_FORWARD_H_
#define BASE_CALLBACK_FORWARD_H_
namespace base {
namespace internal {
// CopyMode is used to control the copyablity of a Callback.
// MoveOnly indicates the Callback is not copyable but movable, and Copyable
// indicates it is copyable and movable.
enum class CopyMode {
MoveOnly, Copyable,
};
} // namespace internal
template <typename Signature,
internal::CopyMode copy_mode = internal::CopyMode::Copyable>
class Callback;
// Syntactic sugar to make Callback<void()> easier to declare since it
// will be used in a lot of APIs with delayed execution.
using Closure = Callback<void()>;
} // namespace base
#endif // BASE_CALLBACK_FORWARD_H_
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