| // |
| // 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 |
