Initial version of completion plugin API

pkg/analysis_server/lib/src/services/correction/assist.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 services.correction.assist;
 
 import 'package:analysis_server/edit/assist/assist_core.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 
 /**
  * Compute and return the assists available at the given selection (described by
  * the [offset] and [length]) in the given [source]. The source was analyzed in
  * the given [context]. The [plugin] is used to get the list of assist
  * contributors.
  */
 List<Assist> computeAssists(ServerPlugin plugin, AnalysisContext context,
     Source source, int offset, int length) {
   List<Assist> assists = <Assist>[];
-  List<AssistContributor> contributors = plugin.assistContributors();
+  List<AssistContributor> contributors = plugin.assistContributors;
   for (AssistContributor contributor in contributors) {
     try {
       List<Assist> contributedAssists =
           contributor.computeAssists(context, source, offset, length);
       if (contributedAssists != null) {
         assists.addAll(contributedAssists);
       }
     } catch (exception, stackTrace) {
       AnalysisEngine.instance.logger.logError(
           'Exception from assist contributor: ${contributor.runtimeType}',
@@ skipping 64 matching lines @@
       const AssistKind('SURROUND_WITH_FOR_IN', 30, "Surround with 'for-in'");
   static const SURROUND_WITH_IF =
       const AssistKind('SURROUND_WITH_IF', 30, "Surround with 'if'");
   static const SURROUND_WITH_TRY_CATCH = const AssistKind(
       'SURROUND_WITH_TRY_CATCH', 30, "Surround with 'try-catch'");
   static const SURROUND_WITH_TRY_FINALLY = const AssistKind(
       'SURROUND_WITH_TRY_FINALLY', 30, "Surround with 'try-finally'");
   static const SURROUND_WITH_WHILE =
       const AssistKind('SURROUND_WITH_WHILE', 30, "Surround with 'while'");
 }