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Unified Diff: quiver/lib/src/cache/map_cache.dart

Issue 1400473008: Roll Observatory packages and add a roll script (Closed) Base URL: git@github.com:dart-lang/observatory_pub_packages.git@master
Patch Set: Created 5 years, 2 months ago
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Index: quiver/lib/src/cache/map_cache.dart
diff --git a/quiver/lib/src/cache/map_cache.dart b/quiver/lib/src/cache/map_cache.dart
deleted file mode 100644
index 3544422e4ef2a773c9eb35fa994da619f0ef5ead..0000000000000000000000000000000000000000
--- a/quiver/lib/src/cache/map_cache.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2013 Google Inc. All Rights Reserved.
-//
-// 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.
-
-part of quiver.cache;
-
-/**
- * A [Cache] that's backed by a [Map].
- */
-class MapCache<K, V> implements Cache<K, V> {
- final Map<K, V> _map;
-
- /**
- * Creates a new [MapCache], optionally using [map] as the backing [Map].
- */
- MapCache({Map<K, V> map}) : _map = map != null ? map : new HashMap<K, V>();
-
- /**
- * Creates a new [MapCache], using [LruMap] as the backing [Map].
- * Optionally specify [maximumSize].
- */
- factory MapCache.lru({int maximumSize}) {
- return new MapCache<K, V>(map: new LruMap(maximumSize: maximumSize));
- }
-
- Future<V> get(K key, {Loader<K> ifAbsent}) {
- if (!_map.containsKey(key) && ifAbsent != null) {
- var valOrFuture = ifAbsent(key);
- if (valOrFuture is Future) {
- return valOrFuture.then((v) {
- _map[key] = v;
- return v;
- });
- } else {
- _map[key] = valOrFuture;
- return new Future.value(valOrFuture);
- }
- }
- return new Future.value(_map[key]);
- }
-
- Future set(K key, V value) {
- _map[key] = value;
- return new Future.value();
- }
-
- Future invalidate(K key) {
- _map.remove(key);
- return new Future.value();
- }
-}
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