mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-09 22:36:01 +05:45
51 lines
1.8 KiB
Objective-C
51 lines
1.8 KiB
Objective-C
/*
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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 "FirebaseDatabase/Sources/Api/Private/FTypedefs_Private.h"
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#import "FirebaseDatabase/Sources/Core/Utilities/FPath.h"
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#import <Foundation/Foundation.h>
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@protocol FIndex;
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@protocol FNode <NSObject>
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- (BOOL)isLeafNode;
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- (id<FNode>)getPriority;
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- (id<FNode>)updatePriority:(id<FNode>)priority;
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- (id<FNode>)getImmediateChild:(NSString *)childKey;
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- (id<FNode>)getChild:(FPath *)path;
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- (NSString *)predecessorChildKey:(NSString *)childKey;
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- (id<FNode>)updateImmediateChild:(NSString *)childKey
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withNewChild:(id<FNode>)newChildNode;
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- (id<FNode>)updateChild:(FPath *)path withNewChild:(id<FNode>)newChildNode;
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- (BOOL)hasChild:(NSString *)childKey;
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- (BOOL)isEmpty;
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- (int)numChildren;
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- (id)val;
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- (id)valForExport:(BOOL)exp;
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- (NSString *)dataHash;
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- (NSComparisonResult)compare:(id<FNode>)other;
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- (BOOL)isEqual:(id<FNode>)other;
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- (void)enumerateChildrenUsingBlock:(void (^)(NSString *key, id<FNode> node,
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BOOL *stop))block;
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- (void)enumerateChildrenReverse:(BOOL)reverse
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usingBlock:(void (^)(NSString *key, id<FNode> node,
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BOOL *stop))block;
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- (NSEnumerator *)childEnumerator;
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@end
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