mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-10 22:45:59 +05:45
Gil
729b8d176c
* Move all Firestore files to Objective-C++
* Update project file references
* Don't use module imports from Objective-C++
* Use extern "C" for C-accessible globals
* Work around more stringent type checking in Objective-C++
* NSMutableDictionary ivars aren't implicitly casted to NSDictionary
* FSTMaybeDocument callback can't be passed a function that accepts
FSTDocument
* NSComparisonResult can't be multiplied by -1 without casting
* Add a #include <inttypes.h> where needed
* Avoid using C++ keywords as variables
* Remove #if __cplusplus guards
89 lines
2.6 KiB
Plaintext
89 lines
2.6 KiB
Plaintext
/*
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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 "Firestore/Source/Local/FSTRemoteDocumentChangeBuffer.h"
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#import "Firestore/Source/Local/FSTRemoteDocumentCache.h"
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#import "Firestore/Source/Model/FSTDocument.h"
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#import "Firestore/Source/Model/FSTDocumentKey.h"
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#import "Firestore/Source/Util/FSTAssert.h"
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NS_ASSUME_NONNULL_BEGIN
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@interface FSTRemoteDocumentChangeBuffer ()
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- (instancetype)initWithCache:(id<FSTRemoteDocumentCache>)cache;
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/** The underlying cache we're buffering changes for. */
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@property(nonatomic, strong, nonnull) id<FSTRemoteDocumentCache> remoteDocumentCache;
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/** The buffered changes, stored as a dictionary for easy lookups. */
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@property(nonatomic, strong, nullable)
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NSMutableDictionary<FSTDocumentKey *, FSTMaybeDocument *> *changes;
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@end
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@implementation FSTRemoteDocumentChangeBuffer
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+ (instancetype)changeBufferWithCache:(id<FSTRemoteDocumentCache>)cache {
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return [[FSTRemoteDocumentChangeBuffer alloc] initWithCache:cache];
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}
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- (instancetype)initWithCache:(id<FSTRemoteDocumentCache>)cache {
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if (self = [super init]) {
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_remoteDocumentCache = cache;
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_changes = [NSMutableDictionary dictionary];
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}
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return self;
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}
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- (void)addEntry:(FSTMaybeDocument *)maybeDocument {
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[self assertValid];
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self.changes[maybeDocument.key] = maybeDocument;
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}
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- (nullable FSTMaybeDocument *)entryForKey:(FSTDocumentKey *)documentKey {
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[self assertValid];
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FSTMaybeDocument *bufferedEntry = self.changes[documentKey];
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if (bufferedEntry) {
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return bufferedEntry;
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} else {
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return [self.remoteDocumentCache entryForKey:documentKey];
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}
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}
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- (void)applyToWriteGroup:(FSTWriteGroup *)group {
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[self assertValid];
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[self.changes enumerateKeysAndObjectsUsingBlock:^(FSTDocumentKey *key, FSTMaybeDocument *value,
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BOOL *stop) {
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[self.remoteDocumentCache addEntry:value group:group];
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}];
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// We should not be used to buffer any more changes.
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self.changes = nil;
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}
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- (void)assertValid {
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FSTAssert(self.changes, @"Changes have already been applied.");
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}
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@end
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NS_ASSUME_NONNULL_END
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