mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-11 22:55:59 +05:45
Konstantin Varlamov
14ea068f5f
- FSTTimestamp is now FIRTimestamp, under Firestore/Source/{Public,API}. This is a temporary solution; eventually, FIRTimestamp is supposed to live somewhere under Firebase;
- move most internal Timestamp methods to the public header (the only exception is ISOString).
81 lines
2.0 KiB
Plaintext
81 lines
2.0 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/Core/FSTSnapshotVersion.h"
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#import "FIRTimestamp.h"
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NS_ASSUME_NONNULL_BEGIN
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@implementation FSTSnapshotVersion
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+ (instancetype)noVersion {
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static FSTSnapshotVersion *min;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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FIRTimestamp *timestamp = [[FIRTimestamp alloc] initWithSeconds:0 nanoseconds:0];
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min = [FSTSnapshotVersion versionWithTimestamp:timestamp];
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});
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return min;
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}
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+ (instancetype)versionWithTimestamp:(FIRTimestamp *)timestamp {
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return [[FSTSnapshotVersion alloc] initWithTimestamp:timestamp];
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}
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- (instancetype)initWithTimestamp:(FIRTimestamp *)timestamp {
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self = [super init];
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if (self) {
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_timestamp = timestamp;
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}
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return self;
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}
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#pragma mark - NSObject methods
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- (BOOL)isEqual:(id)object {
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if (self == object) {
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return YES;
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}
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if (![object isKindOfClass:[FSTSnapshotVersion class]]) {
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return NO;
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}
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return [self.timestamp isEqual:((FSTSnapshotVersion *)object).timestamp];
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}
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- (NSUInteger)hash {
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return self.timestamp.hash;
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}
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- (NSString *)description {
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return [NSString stringWithFormat:@"<FSTSnapshotVersion: %@>", self.timestamp];
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}
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- (id)copyWithZone:(NSZone *_Nullable)zone {
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// Implements NSCopying without actually copying because timestamps are immutable.
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return self;
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}
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#pragma mark - Public methods
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- (NSComparisonResult)compare:(FSTSnapshotVersion *)other {
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return [self.timestamp compare:other.timestamp];
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}
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@end
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NS_ASSUME_NONNULL_END
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