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f6ecd65374
This means other headers that need these ParamTraits don't also include all the other things that WebGLIpdl.h needs, like WebGLTypes.h. This reduces the preprocessed size of modules outside of dom/canvas, hopefully improving compilation speed, and reducing breadth of recompiles. Differential Revision: https://phabricator.services.mozilla.com/D229865
27 lines
690 B
C++
27 lines
690 B
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_DOM_ISENUMCASE_H
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#define MOZILLA_DOM_ISENUMCASE_H
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#include <optional>
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#include <type_traits>
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namespace mozilla {
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template <class T>
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bool IsEnumCase(T);
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template <class E>
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inline constexpr std::optional<E> AsEnumCase(
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const std::underlying_type_t<E> raw) {
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const auto ret = static_cast<E>(raw);
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if (!IsEnumCase(ret)) return {};
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return ret;
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}
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} // namespace mozilla
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#endif
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