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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/rtc_base/strong_alias.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/rtc_base/strong_alias.h')
-rw-r--r-- | third_party/libwebrtc/rtc_base/strong_alias.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/strong_alias.h b/third_party/libwebrtc/rtc_base/strong_alias.h new file mode 100644 index 0000000000..3f45113f63 --- /dev/null +++ b/third_party/libwebrtc/rtc_base/strong_alias.h @@ -0,0 +1,76 @@ +/* + * Copyright 2019 The Chromium Authors. All rights reserved. + * Copyright (c) 2021 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ +#ifndef RTC_BASE_STRONG_ALIAS_H_ +#define RTC_BASE_STRONG_ALIAS_H_ + +#include <type_traits> +#include <utility> + +namespace webrtc { + +// This is a copy of +// https://source.chromium.org/chromium/chromium/src/+/main:base/types/strong_alias.h +// as the API (and internals) are using type-safe integral identifiers, but this +// library can't depend on that file. The ostream operator has been removed +// per WebRTC library conventions, and the underlying type is exposed. + +template <typename TagType, typename TheUnderlyingType> +class StrongAlias { + public: + using UnderlyingType = TheUnderlyingType; + constexpr StrongAlias() = default; + constexpr explicit StrongAlias(const UnderlyingType& v) : value_(v) {} + constexpr explicit StrongAlias(UnderlyingType&& v) noexcept + : value_(std::move(v)) {} + + constexpr UnderlyingType* operator->() { return &value_; } + constexpr const UnderlyingType* operator->() const { return &value_; } + + constexpr UnderlyingType& operator*() & { return value_; } + constexpr const UnderlyingType& operator*() const& { return value_; } + constexpr UnderlyingType&& operator*() && { return std::move(value_); } + constexpr const UnderlyingType&& operator*() const&& { + return std::move(value_); + } + + constexpr UnderlyingType& value() & { return value_; } + constexpr const UnderlyingType& value() const& { return value_; } + constexpr UnderlyingType&& value() && { return std::move(value_); } + constexpr const UnderlyingType&& value() const&& { return std::move(value_); } + + constexpr explicit operator const UnderlyingType&() const& { return value_; } + + constexpr bool operator==(const StrongAlias& other) const { + return value_ == other.value_; + } + constexpr bool operator!=(const StrongAlias& other) const { + return value_ != other.value_; + } + constexpr bool operator<(const StrongAlias& other) const { + return value_ < other.value_; + } + constexpr bool operator<=(const StrongAlias& other) const { + return value_ <= other.value_; + } + constexpr bool operator>(const StrongAlias& other) const { + return value_ > other.value_; + } + constexpr bool operator>=(const StrongAlias& other) const { + return value_ >= other.value_; + } + + protected: + UnderlyingType value_; +}; + +} // namespace webrtc + +#endif // RTC_BASE_STRONG_ALIAS_H_ |