Move index/search to services.

pkg/analyzer/lib/src/index/store/memory_node_manager.dart

-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library engine.src.index.store_memory_node_manager;
-
-import 'dart:async';
-import 'dart:collection';
-
-import 'package:analyzer/src/generated/engine.dart';
-import 'package:analyzer/src/index/store/codec.dart';
-import 'package:analyzer/src/index/store/split_store.dart';
-
-
-class MemoryNodeManager implements NodeManager {
-  StringCodec _stringCodec = new StringCodec();
-  ContextCodec _contextCodec = new ContextCodec();
-  ElementCodec _elementCodec;
-  RelationshipCodec _relationshipCodec;
-
-  int _locationCount = 0;
-  final Map<String, int> _nodeLocationCounts = new HashMap<String, int>();
-  final Map<String, IndexNode> _nodes = new HashMap<String, IndexNode>();
-
-  MemoryNodeManager() {
-    _elementCodec = new ElementCodec(_stringCodec);
-    _relationshipCodec = new RelationshipCodec(_stringCodec);
-  }
-
-  @override
-  ContextCodec get contextCodec {
-    return _contextCodec;
-  }
-
-  @override
-  ElementCodec get elementCodec {
-    return _elementCodec;
-  }
-
-  @override
-  int get locationCount {
-    return _locationCount;
-  }
-
-  @override
-  StringCodec get stringCodec {
-    return _stringCodec;
-  }
-
-  @override
-  void clear() {
-    _nodes.clear();
-  }
-
-  int getLocationCount(String name) {
-    int locationCount = _nodeLocationCounts[name];
-    return locationCount != null ? locationCount : 0;
-  }
-
-  @override
-  Future<IndexNode> getNode(String name) {
-    return new Future.value(_nodes[name]);
-  }
-
-  bool isEmpty() {
-    for (IndexNode node in _nodes.values) {
-      Map<RelationKeyData, List<LocationData>> relations = node.relations;
-      if (!relations.isEmpty) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  @override
-  IndexNode newNode(AnalysisContext context) {
-    return new IndexNode(context, elementCodec, _relationshipCodec);
-  }
-
-  @override
-  void putNode(String name, IndexNode node) {
-    // update location count
-    {
-      _locationCount -= getLocationCount(name);
-      int nodeLocationCount = node.locationCount;
-      _nodeLocationCounts[name] = nodeLocationCount;
-      _locationCount += nodeLocationCount;
-    }
-    // remember the node
-    _nodes[name] = node;
-  }
-
-  @override
-  void removeNode(String name) {
-    _nodes.remove(name);
-  }
-}