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- //
- // FABAttributes.h
- // Fabric
- //
- // Copyright (C) 2015 Twitter, Inc.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- //
- #pragma once
- #define FAB_UNAVAILABLE(x) __attribute__((unavailable(x)))
- #if !__has_feature(nullability)
- #define nonnull
- #define nullable
- #define _Nullable
- #define _Nonnull
- #endif
- #ifndef NS_ASSUME_NONNULL_BEGIN
- #define NS_ASSUME_NONNULL_BEGIN
- #endif
- #ifndef NS_ASSUME_NONNULL_END
- #define NS_ASSUME_NONNULL_END
- #endif
- /**
- * The following macros are defined here to provide
- * backwards compatability. If you are still using
- * them you should migrate to the native nullability
- * macros.
- */
- #define fab_nullable nullable
- #define fab_nonnull nonnull
- #define FAB_NONNULL __fab_nonnull
- #define FAB_NULLABLE __fab_nullable
- #define FAB_START_NONNULL NS_ASSUME_NONNULL_BEGIN
- #define FAB_END_NONNULL NS_ASSUME_NONNULL_END
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