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-rw-r--r--Firestore/Source/Core/FSTSnapshotVersion.mm80
1 files changed, 0 insertions, 80 deletions
diff --git a/Firestore/Source/Core/FSTSnapshotVersion.mm b/Firestore/Source/Core/FSTSnapshotVersion.mm
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--- a/Firestore/Source/Core/FSTSnapshotVersion.mm
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-/*
- * Copyright 2017 Google
- *
- * 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.
- */
-
-#import "Firestore/Source/Core/FSTSnapshotVersion.h"
-
-#import "FIRTimestamp.h"
-
-NS_ASSUME_NONNULL_BEGIN
-
-@implementation FSTSnapshotVersion
-
-+ (instancetype)noVersion {
- static FSTSnapshotVersion *min;
- static dispatch_once_t onceToken;
- dispatch_once(&onceToken, ^{
- FIRTimestamp *timestamp = [[FIRTimestamp alloc] initWithSeconds:0 nanoseconds:0];
- min = [FSTSnapshotVersion versionWithTimestamp:timestamp];
- });
- return min;
-}
-
-+ (instancetype)versionWithTimestamp:(FIRTimestamp *)timestamp {
- return [[FSTSnapshotVersion alloc] initWithTimestamp:timestamp];
-}
-
-- (instancetype)initWithTimestamp:(FIRTimestamp *)timestamp {
- self = [super init];
- if (self) {
- _timestamp = timestamp;
- }
- return self;
-}
-
-#pragma mark - NSObject methods
-
-- (BOOL)isEqual:(id)object {
- if (self == object) {
- return YES;
- }
- if (![object isKindOfClass:[FSTSnapshotVersion class]]) {
- return NO;
- }
- return [self.timestamp isEqual:((FSTSnapshotVersion *)object).timestamp];
-}
-
-- (NSUInteger)hash {
- return self.timestamp.hash;
-}
-
-- (NSString *)description {
- return [NSString stringWithFormat:@"<FSTSnapshotVersion: %@>", self.timestamp];
-}
-
-- (id)copyWithZone:(NSZone *_Nullable)zone {
- // Implements NSCopying without actually copying because timestamps are immutable.
- return self;
-}
-
-#pragma mark - Public methods
-
-- (NSComparisonResult)compare:(FSTSnapshotVersion *)other {
- return [self.timestamp compare:other.timestamp];
-}
-
-@end
-
-NS_ASSUME_NONNULL_END