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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 <Foundation/Foundation.h>
#import "Firestore/Source/Local/FSTGarbageCollector.h"
NS_ASSUME_NONNULL_BEGIN
/**
* A garbage collector implementation that eagerly collects documents as soon as they're no longer
* referenced in any of its registered FSTGarbageSources.
*
* This implementation keeps track of a set of keys that are potentially garbage without keeping
* an exact reference count. During -collectGarbage, the collector verifies that all potential
* garbage keys actually have no references by consulting its list of garbage sources.
*/
@interface FSTEagerGarbageCollector : NSObject <FSTGarbageCollector>
@end
NS_ASSUME_NONNULL_END
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