1 files changed, 45 insertions, 0 deletions
diff --git a/Firestore/Source/Local/FSTNoOpGarbageCollector.mm b/Firestore/Source/Local/FSTNoOpGarbageCollector.mm
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+++ b/Firestore/Source/Local/FSTNoOpGarbageCollector.mm
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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 "Firestore/Source/Local/FSTNoOpGarbageCollector.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@implementation FSTNoOpGarbageCollector
+
+- (BOOL)isEager {
+  return NO;
+}
+
+- (void)addGarbageSource:(id<FSTGarbageSource>)garbageSource {
+  // Not tracking garbage so don't track sources.
+}
+
+- (void)removeGarbageSource:(id<FSTGarbageSource>)garbageSource {
+  // Not tracking garbage so don't track sources.
+}
+
+- (void)addPotentialGarbageKey:(FSTDocumentKey *)key {
+  // Not tracking garbage so ignore.
+}
+
+- (NSSet<FSTDocumentKey *> *)collectGarbage {
+  return [NSSet set];
+}
+
+@end
+
+NS_ASSUME_NONNULL_END