Files
yoga/yoga/YGMacros.h
Nick Gerleman 5a18ccdbe2 Fixup Enum Generator
Summary:
https://github.com/facebook/yoga/pull/1116 adds a new enum. The enum generator is out of date with copyright header, and some codemods, but it also looks like there were manual changes, types added, etc since generation. I fixed up the script to incorporate generating the changes folks made manually, and also added an enum that was previously only added manually to the C ABI.

Changelog:
[General][Fixed] - Fixup Yoga Enum Generator

Reviewed By: yungsters

Differential Revision: D39922252

fbshipit-source-id: b678fa9a43a896873d8c434745bdaf3f16fd991f
2022-09-29 22:25:24 -07:00

97 lines
2.3 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#ifdef __cplusplus
#define YG_EXTERN_C_BEGIN extern "C" {
#define YG_EXTERN_C_END }
#else
#define YG_EXTERN_C_BEGIN
#define YG_EXTERN_C_END
#endif
#ifdef _WINDLL
#define WIN_EXPORT __declspec(dllexport)
#else
#define WIN_EXPORT
#endif
#ifndef YOGA_EXPORT
#ifdef _MSC_VER
#define YOGA_EXPORT
#else
#define YOGA_EXPORT __attribute__((visibility("default")))
#endif
#endif
#ifdef NS_ENUM
// Cannot use NSInteger as NSInteger has a different size than int (which is the
// default type of a enum). Therefor when linking the Yoga C library into obj-c
// the header is a missmatch for the Yoga ABI.
#define YG_ENUM_BEGIN(name) NS_ENUM(int, name)
#define YG_ENUM_END(name)
#else
#define YG_ENUM_BEGIN(name) enum name
#define YG_ENUM_END(name) name
#endif
#ifdef __cplusplus
namespace facebook {
namespace yoga {
namespace enums {
template <typename T>
constexpr int count(); // can't use `= delete` due to a defect in clang < 3.9
namespace detail {
template <int... xs>
constexpr int n() {
return sizeof...(xs);
}
} // namespace detail
} // namespace enums
} // namespace yoga
} // namespace facebook
#endif
#define YG_ENUM_DECL(NAME, ...) \
typedef YG_ENUM_BEGIN(NAME){__VA_ARGS__} YG_ENUM_END(NAME); \
WIN_EXPORT const char* NAME##ToString(NAME);
#ifdef __cplusplus
#define YG_ENUM_SEQ_DECL(NAME, ...) \
YG_ENUM_DECL(NAME, __VA_ARGS__) \
YG_EXTERN_C_END \
namespace facebook { \
namespace yoga { \
namespace enums { \
template <> \
constexpr int count<NAME>() { \
return detail::n<__VA_ARGS__>(); \
} \
} \
} \
} \
YG_EXTERN_C_BEGIN
#else
#define YG_ENUM_SEQ_DECL YG_ENUM_DECL
#endif
#ifdef __GNUC__
#define YG_DEPRECATED __attribute__((deprecated))
#elif defined(_MSC_VER)
#define YG_DEPRECATED __declspec(deprecated)
#elif __cplusplus >= 201402L
#if defined(__has_cpp_attribute)
#if __has_cpp_attribute(deprecated)
#define YG_DEPRECATED [[deprecated]]
#endif
#endif
#endif