зеркало из https://github.com/mozilla/gecko-dev.git
70 строки
2.4 KiB
C++
70 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_QUOTA_FIRSTINITIALIZATIONATTEMPTS_H_
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#define DOM_QUOTA_FIRSTINITIALIZATIONATTEMPTS_H_
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#include <cstdint>
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#include <utility>
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#include "ErrorList.h"
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namespace mozilla::dom::quota {
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template <typename Initialization, typename StringGenerator>
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class FirstInitializationAttempts {
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Initialization mFirstInitializationAttempts = Initialization::None;
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public:
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class FirstInitializationAttemptImpl {
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using FirstInitializationAttemptsType =
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FirstInitializationAttempts<Initialization, StringGenerator>;
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FirstInitializationAttemptsType& mOwner;
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const Initialization mInitialization;
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public:
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FirstInitializationAttemptImpl(FirstInitializationAttemptsType& aOwner,
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const Initialization aInitialization)
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: mOwner(aOwner), mInitialization(aInitialization) {}
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bool Recorded() const {
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return mOwner.FirstInitializationAttemptRecorded(mInitialization);
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}
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void Record(const nsresult aRv) const {
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mOwner.RecordFirstInitializationAttempt(mInitialization, aRv);
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}
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};
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template <typename Func>
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auto WithFirstInitializationAttempt(const Initialization aInitialization,
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Func&& aFunc)
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-> std::invoke_result_t<Func, FirstInitializationAttemptImpl&&> {
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return std::forward<Func>(aFunc)(
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FirstInitializationAttemptImpl(*this, aInitialization));
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}
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bool FirstInitializationAttemptRecorded(
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const Initialization aInitialization) const {
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return static_cast<bool>(mFirstInitializationAttempts & aInitialization);
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}
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void RecordFirstInitializationAttempt(const Initialization aInitialization,
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nsresult aRv);
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void ResetFirstInitializationAttempts() {
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mFirstInitializationAttempts = Initialization::None;
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}
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};
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template <typename Initialization, typename StringGenerator>
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using FirstInitializationAttempt = typename FirstInitializationAttempts<
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Initialization, StringGenerator>::FirstInitializationAttemptImpl;
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} // namespace mozilla::dom::quota
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#endif // DOM_QUOTA_FIRSTINITIALIZATIONATTEMPTS_H_
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