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Diffstat (limited to 'Firestore/Source/API/FIRFieldValue.mm')
-rw-r--r-- | Firestore/Source/API/FIRFieldValue.mm | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/Firestore/Source/API/FIRFieldValue.mm b/Firestore/Source/API/FIRFieldValue.mm new file mode 100644 index 0000000..7ae4fb0 --- /dev/null +++ b/Firestore/Source/API/FIRFieldValue.mm @@ -0,0 +1,96 @@ +/* + * 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/API/FIRFieldValue+Internal.h" + +NS_ASSUME_NONNULL_BEGIN + +@interface FIRFieldValue () +- (instancetype)initPrivate NS_DESIGNATED_INITIALIZER; +@end + +#pragma mark - FSTDeleteFieldValue + +@interface FSTDeleteFieldValue () +/** Returns a single shared instance of the class. */ ++ (instancetype)deleteFieldValue; +@end + +@implementation FSTDeleteFieldValue + +- (instancetype)initPrivate { + self = [super initPrivate]; + return self; +} + ++ (instancetype)deleteFieldValue { + static FSTDeleteFieldValue *sharedInstance = nil; + static dispatch_once_t onceToken; + + dispatch_once(&onceToken, ^{ + sharedInstance = [[FSTDeleteFieldValue alloc] initPrivate]; + }); + return sharedInstance; +} + +@end + +#pragma mark - FSTServerTimestampFieldValue + +@interface FSTServerTimestampFieldValue () +/** Returns a single shared instance of the class. */ ++ (instancetype)serverTimestampFieldValue; +@end + +@implementation FSTServerTimestampFieldValue + +- (instancetype)initPrivate { + self = [super initPrivate]; + return self; +} + ++ (instancetype)serverTimestampFieldValue { + static FSTServerTimestampFieldValue *sharedInstance = nil; + static dispatch_once_t onceToken; + + dispatch_once(&onceToken, ^{ + sharedInstance = [[FSTServerTimestampFieldValue alloc] initPrivate]; + }); + return sharedInstance; +} + +@end + +#pragma mark - FIRFieldValue + +@implementation FIRFieldValue + +- (instancetype)initPrivate { + self = [super init]; + return self; +} + ++ (instancetype)fieldValueForDelete { + return [FSTDeleteFieldValue deleteFieldValue]; +} + ++ (instancetype)fieldValueForServerTimestamp { + return [FSTServerTimestampFieldValue serverTimestampFieldValue]; +} + +@end + +NS_ASSUME_NONNULL_END |