Remove old index and search implementations.

pkg/analysis_server/lib/src/plugin/server_plugin.dart

 // Copyright (c) 2015, 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 analysis_server.src.plugin.server_plugin;
 
 import 'package:analysis_server/plugin/analysis/analysis_domain.dart';
 import 'package:analysis_server/plugin/analysis/analyzed_files.dart';
 import 'package:analysis_server/plugin/analysis/navigation/navigation.dart';
 import 'package:analysis_server/plugin/analysis/navigation/navigation_core.dart';
 import 'package:analysis_server/plugin/analysis/occurrences/occurrences.dart';
 import 'package:analysis_server/plugin/analysis/occurrences/occurrences_core.dart';
 import 'package:analysis_server/plugin/edit/assist/assist.dart';
 import 'package:analysis_server/plugin/edit/assist/assist_core.dart';
 import 'package:analysis_server/plugin/edit/fix/fix.dart';
 import 'package:analysis_server/plugin/edit/fix/fix_core.dart';
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/domain_analysis.dart';
 import 'package:analysis_server/src/domain_completion.dart';
 import 'package:analysis_server/src/domain_diagnostic.dart';
 import 'package:analysis_server/src/domain_execution.dart';
 import 'package:analysis_server/src/domain_server.dart';
 import 'package:analysis_server/src/domains/analysis/navigation_dart.dart';
 import 'package:analysis_server/src/domains/analysis/occurrences_dart.dart';
 import 'package:analysis_server/src/edit/edit_domain.dart';
 import 'package:analysis_server/src/provisional/completion/completion_core.dart';
-import 'package:analysis_server/src/provisional/index/index.dart';
-import 'package:analysis_server/src/provisional/index/index_core.dart';
 import 'package:analysis_server/src/search/search_domain.dart';
 import 'package:analysis_server/src/services/correction/assist_internal.dart';
 import 'package:analysis_server/src/services/correction/fix_internal.dart';
-import 'package:analysis_server/src/services/index/index_contributor.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:plugin/plugin.dart';
 
 /**
  * A function that will create a request handler that can be used by the given
  * [server].
  */
 typedef RequestHandler RequestHandlerFactory(AnalysisServer server);
 
 /**
@@ skipping 87 matching lines @@
    */
   ExtensionPoint domainExtensionPoint;
 
   /**
    * The extension point that allows plugins to register fix contributors with
    * the server.
    */
   ExtensionPoint fixContributorExtensionPoint;
 
   /**
-   * The extension point that allows plugins to register index contributors.
-   */
-  ExtensionPoint indexContributorExtensionPoint;

[Brian Wilkerson, 2016/03/14 18:57:32]

Why are we getting rid of this? I thought we had plugins that needed this
functionality.

If we don't have plugins that need it, can we restore it later if we need to, or
does the new architecture preclude allowing contributions?

[scheglov, 2016/03/14 19:18:38]

  AFAIK we don't have such plugins yet.
  It was work in progress to support Angular2 plugins, but at the end it has
never been implemented.
We will able to restore it later.
_ContextIndex can be taught to index other kinds of objects than
CompilationUnits and provide references to Dart elements in these objects.

-
-  /**
    * The extension point that allows plugins to register navigation
    * contributors.
    */
   ExtensionPoint navigationContributorExtensionPoint;
 
   /**
    * The extension point that allows plugins to register occurrences
    * contributors.
    */
   ExtensionPoint occurrencesContributorExtensionPoint;
@@ skipping 37 matching lines @@
       completionContributorExtensionPoint.extensions
           .map((CompletionContributorFactory factory) => factory());
 
   /**
    * Return a list containing all of the fix contributors that were contributed.
    */
   List<FixContributor> get fixContributors =>
       fixContributorExtensionPoint.extensions;
 
   /**
-   * Return a list containing all of the index contributors that were
-   * contributed.
-   */
-  List<IndexContributor> get indexContributors =>
-      indexContributorExtensionPoint.extensions;
-
-  /**
    * Return a list containing all of the navigation contributors that were
    * contributed.
    */
   List<NavigationContributor> get navigationContributors =>
       navigationContributorExtensionPoint.extensions;
 
   /**
    * Return a list containing all of the occurrences contributors that were
    * contributed.
    */
@@ skipping 34 matching lines @@
     assistContributorExtensionPoint = registerExtensionPoint(
         ASSIST_CONTRIBUTOR_EXTENSION_POINT,
         _validateAssistContributorExtension);
     completionContributorExtensionPoint = registerExtensionPoint(
         COMPLETION_CONTRIBUTOR_EXTENSION_POINT,
         _validateCompletionContributorExtension);
     domainExtensionPoint = registerExtensionPoint(
         DOMAIN_EXTENSION_POINT, _validateDomainExtension);
     fixContributorExtensionPoint = registerExtensionPoint(
         FIX_CONTRIBUTOR_EXTENSION_POINT, _validateFixContributorExtension);
-    indexContributorExtensionPoint = registerExtensionPoint(
-        INDEX_CONTRIBUTOR_EXTENSION_POINT, _validateIndexContributorExtension);
     navigationContributorExtensionPoint = registerExtensionPoint(
         NAVIGATION_CONTRIBUTOR_EXTENSION_POINT,
         _validateNavigationContributorExtension);
     occurrencesContributorExtensionPoint = registerExtensionPoint(
         OCCURRENCES_CONTRIBUTOR_EXTENSION_POINT,
         _validateOccurrencesContributorExtension);
   }
 
   @override
   void registerExtensions(RegisterExtension registerExtension) {
@@ skipping 40 matching lines @@
         (AnalysisServer server) => new CompletionDomainHandler(server));
     registerExtension(domainId,
         (AnalysisServer server) => new ExecutionDomainHandler(server));
     registerExtension(domainId,
         (AnalysisServer server) => new DiagnosticDomainHandler(server));
     //
     // Register fix contributors.
     //
     registerExtension(
         FIX_CONTRIBUTOR_EXTENSION_POINT_ID, new DefaultFixContributor());
-    //
-    // Register index contributors.
-    //
-    registerExtension(
-        INDEX_CONTRIBUTOR_EXTENSION_POINT_ID, new DartIndexContributor());
   }
 
   /**
    * Return `true` if the list being used as an [extension] contains any
    * elements that are not strings.
    */
   bool _containsNonString(List extension) {
     for (Object element in extension) {
       if (element is! String) {
         return true;
@@ skipping 55 matching lines @@
    */
   void _validateFixContributorExtension(Object extension) {
     if (extension is! FixContributor) {
       String id = fixContributorExtensionPoint.uniqueIdentifier;
       throw new ExtensionError('Extensions to $id must be a FixContributor');
     }
   }
 
   /**
    * Validate the given extension by throwing an [ExtensionError] if it is not a
-   * valid index contributor.
-   */
-  void _validateIndexContributorExtension(Object extension) {
-    if (extension is! IndexContributor) {
-      String id = indexContributorExtensionPoint.uniqueIdentifier;
-      throw new ExtensionError('Extensions to $id must be an IndexContributor');
-    }
-  }
-
-  /**
-   * Validate the given extension by throwing an [ExtensionError] if it is not a
    * valid navigation contributor.
    */
   void _validateNavigationContributorExtension(Object extension) {
     if (extension is! NavigationContributor) {
       String id = navigationContributorExtensionPoint.uniqueIdentifier;
       throw new ExtensionError(
           'Extensions to $id must be an NavigationContributor');
     }
   }
 
@@ skipping 14 matching lines @@
    * valid analysis domain receiver.
    */
   void _validateSetAnalysisDomainFunction(Object extension) {
     if (extension is! SetAnalysisDomain) {
       String id = setAnalysisDomainExtensionPoint.uniqueIdentifier;
       throw new ExtensionError(
           'Extensions to $id must be a SetAnalysisDomain function');
     }
   }
 }