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Diffstat (limited to 'Firestore/Source/Local/FSTDocumentReference.mm')
-rw-r--r-- | Firestore/Source/Local/FSTDocumentReference.mm | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/Firestore/Source/Local/FSTDocumentReference.mm b/Firestore/Source/Local/FSTDocumentReference.mm new file mode 100644 index 0000000..4310baa --- /dev/null +++ b/Firestore/Source/Local/FSTDocumentReference.mm @@ -0,0 +1,86 @@ +/* + * 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/Local/FSTDocumentReference.h" + +#include "Firestore/core/src/firebase/firestore/util/comparison.h" + +#import "Firestore/Source/Model/FSTDocumentKey.h" + +using firebase::firestore::util::WrapCompare; + +NS_ASSUME_NONNULL_BEGIN + +@implementation FSTDocumentReference + +- (instancetype)initWithKey:(FSTDocumentKey *)key ID:(int32_t)ID { + self = [super init]; + if (self) { + _key = key; + _ID = ID; + } + return self; +} + +- (BOOL)isEqual:(id)other { + if (other == self) return YES; + if (![[other class] isEqual:[self class]]) return NO; + + FSTDocumentReference *reference = (FSTDocumentReference *)other; + + return [self.key isEqualToKey:reference.key] && self.ID == reference.ID; +} + +- (NSUInteger)hash { + NSUInteger result = [self.key hash]; + result = result * 31u + self.ID; + return result; +} + +- (NSString *)description { + return [NSString stringWithFormat:@"<FSTDocumentReference: key=%@, ID=%d>", self.key, self.ID]; +} + +- (id)copyWithZone:(nullable NSZone *)zone { + // FSTDocumentReference is immutable + return self; +} + +@end + +#pragma mark Comparators + +/** Sorts document references by key then ID. */ +const NSComparator FSTDocumentReferenceComparatorByKey = + ^NSComparisonResult(FSTDocumentReference *left, FSTDocumentReference *right) { + NSComparisonResult result = FSTDocumentKeyComparator(left.key, right.key); + if (result != NSOrderedSame) { + return result; + } + return WrapCompare<int32_t>(left.ID, right.ID); + }; + +/** Sorts document references by ID then key. */ +const NSComparator FSTDocumentReferenceComparatorByID = + ^NSComparisonResult(FSTDocumentReference *left, FSTDocumentReference *right) { + NSComparisonResult result = WrapCompare<int32_t>(left.ID, right.ID); + if (result != NSOrderedSame) { + return result; + } + return FSTDocumentKeyComparator(left.key, right.key); + }; + +NS_ASSUME_NONNULL_END |