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40 lines
996 B
C++
40 lines
996 B
C++
// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/callback_list.h"
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#include <utility>
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#include "base/callback.h"
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namespace base {
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CallbackListSubscription::CallbackListSubscription() = default;
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CallbackListSubscription::CallbackListSubscription(base::OnceClosure closure)
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: closure_(std::move(closure)) {}
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CallbackListSubscription::CallbackListSubscription(
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CallbackListSubscription&& subscription)
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: closure_(std::move(subscription.closure_)) {}
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CallbackListSubscription& CallbackListSubscription::operator=(
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CallbackListSubscription&& subscription) {
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// Note: This still works properly for self-assignment.
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Run();
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closure_ = std::move(subscription.closure_);
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return *this;
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}
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CallbackListSubscription::~CallbackListSubscription() {
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Run();
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}
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void CallbackListSubscription::Run() {
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if (closure_)
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std::move(closure_).Run();
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}
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} // namespace base
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