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APIFeatureStatus.h
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91 lines (84 loc) · 3.18 KB
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/*
* Copyright (C) 2022-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <optional>
#include <type_traits>
namespace API {
enum class FeatureStatus : uint8_t {
// For customizing WebKit behavior in embedding applications.
Embedder,
// Feature in active development. Unfinished, no promise it is usable or safe.
Unstable,
// Tools for debugging the WebKit engine. Not generally useful to web developers.
Internal,
// Tools for web developers.
Developer,
// Enabled by default in test infrastructure, but not ready to ship yet.
Testable,
// Enabled by default in Safari Technology Preview, but not considered ready to ship yet.
Preview,
// Enabled by default and ready for general use.
Stable,
// Enabled by default and in general use for more than a year.
Mature
};
// Helper for representing feature status as a constant type. Used by the preferences generator to
// validate feature configuration at compile time.
template<API::FeatureStatus Status>
class FeatureConstant : public std::integral_constant<API::FeatureStatus, Status> { };
constexpr std::optional<bool> defaultValueForFeatureStatus(FeatureStatus status)
{
switch (status) {
case FeatureStatus::Stable:
case FeatureStatus::Mature:
return true;
case FeatureStatus::Unstable:
case FeatureStatus::Developer:
case FeatureStatus::Testable:
case FeatureStatus::Preview:
return false;
case FeatureStatus::Embedder:
case FeatureStatus::Internal:
// Embedder features vary widely between platforms, so they have no
// implied default.
// FIXME: Internal features should be off by default, but they need
// additional auditing.
return { };
}
}
enum class FeatureCategory : uint8_t {
None,
Animation,
CSS,
DOM,
Extensions,
HTML,
Javascript,
Media,
Networking,
Privacy,
Security
};
}