Move Index and IndexStore implementations into Engine.

pkg/analyzer/lib/src/index/local_index.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 index;
+library engine.src.index.local_index;
 
 import 'dart:async';
 import 'dart:io';
 
-import 'package:analysis_server/src/index/store/codec.dart';
-import 'package:analysis_server/src/index/store/separate_file_manager.dart';
-import 'package:analysis_server/src/index/store/split_store.dart';
+import 'package:analyzer/index/index.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/html.dart';
-import 'package:analyzer/src/generated/index.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:analyzer/src/index/index_contributor.dart' as contributors;
+import 'package:analyzer/src/index/store/codec.dart';
+import 'package:analyzer/src/index/store/memory_node_manager.dart';
+import 'package:analyzer/src/index/store/separate_file_manager.dart';
+import 'package:analyzer/src/index/store/split_store.dart';
 
 
 Index createLocalFileSplitIndex(Directory directory) {
   var fileManager = new SeparateFileManager(directory);
   var stringCodec = new StringCodec();
   var nodeManager = new FileNodeManager(fileManager,
       AnalysisEngine.instance.logger, stringCodec, new ContextCodec(),
       new ElementCodec(stringCodec), new RelationshipCodec(stringCodec));
   return new LocalIndex(nodeManager);
 }
 
 
+Index createLocalMemorySplitIndex() {
+  return new LocalIndex(new MemoryNodeManager());
+}
+
+
 /**
  * A local implementation of [Index].
  */
 class LocalIndex extends Index {
   SplitIndexStore _store;
 
   LocalIndex(NodeManager nodeManager) {
     _store = new SplitIndexStore(nodeManager);
   }
 
   @override
   String get statistics => _store.statistics;
 
   @override
   void clear() {
     _store.clear();
   }
 
-  @override
-  void getRelationships(Element element, Relationship relationship,
-      RelationshipCallback callback) {
-    // TODO(scheglov) update Index API to use asynchronous interface
-    callback.hasRelationships(element, relationship, Location.EMPTY_ARRAY);
-  }
-
   /**
    * Returns a `Future<List<Location>>` that completes with the list of
    * [Location]s of the given [relationship] with the given [element].
    *
    * For example, if the [element] represents a function and the [relationship]
    * is the `is-invoked-by` relationship, then the locations will be all of the
    * places where the function is invoked.
    */
-  Future<List<Location>> getRelationshipsAsync(Element element,
+  @override
+  Future<List<Location>> getRelationships(Element element,
       Relationship relationship) {
-    return _store.getRelationshipsAsync(element, relationship);
+    return _store.getRelationships(element, relationship);
   }
 
   @override
   void indexHtmlUnit(AnalysisContext context, HtmlUnit unit) {
-    if (unit == null) {
-      return;
-    }
-    if (unit.element == null) {
-      return;
-    }
-    new IndexHtmlUnitOperation(_store, context, unit).performOperation();
+    contributors.indexHtmlUnit(_store, context, unit);
   }
 
   @override
   void indexUnit(AnalysisContext context, CompilationUnit unit) {
-    if (unit == null) {
-      return;
-    }
-    if (unit.element == null) {
-      return;
-    }
-    new IndexUnitOperation(_store, context, unit).performOperation();
+    contributors.indexDartUnit(_store, context, unit);
   }
 
   @override
   void removeContext(AnalysisContext context) {
     _store.removeContext(context);
   }
 
   @override
   void removeSource(AnalysisContext context, Source source) {
     _store.removeSource(context, source);
   }
 
   @override
   void removeSources(AnalysisContext context, SourceContainer container) {
     _store.removeSources(context, container);
   }
 
   @override
   void run() {
-    // NO-OP if in the same isolate
+    // NO-OP for the local index
   }
 
   @override
   void stop() {
-    // NO-OP if in the same isolate
+    // NO-OP for the local index
   }
 }