mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-09 22:36:01 +05:45
Gil
1d1dd64762
`typeof` is only defined if you compile with GNU extensions, while `__typeof__` is always available. This is the Firestore equivalent of #1982. Note that Firestore won't yet build in this mode because among other things the Objective-C gRPC still uses `typeof`. Once we eliminate that dependency this might become possible.
41 lines
1.7 KiB
Objective-C
41 lines
1.7 KiB
Objective-C
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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// A convenience macro for unimplemented methods. Use as follows:
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//
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// @throw FSTAbstractMethodException(); // NOLINT
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#define FSTAbstractMethodException() \
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[NSException exceptionWithName:NSInternalInconsistencyException \
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reason:[NSString stringWithFormat:@"You must override %s in a subclass", \
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__func__] \
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userInfo:nil];
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// Declare a weak pointer to the given variable
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#define FSTWeakify(var) __weak __typeof__(var) fstWeakPointerTo##var = var;
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// Declare a strong pointer to a variable that's been FSTWeakified. This creates a shadow of the
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// original.
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#define FSTStrongify(var) \
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_Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wshadow\"") \
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__strong __typeof__(var) var = fstWeakPointerTo##var; \
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_Pragma("clang diagnostic pop")
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NS_ASSUME_NONNULL_END
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