| // Copyright (c) 2017, 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. |
| |
| import 'package:analyzer/src/generated/java_core.dart'; |
| import 'package:analyzer_plugin/protocol/protocol_common.dart'; |
| import 'package:analyzer_plugin/protocol/protocol_generated.dart'; |
| import 'package:analyzer_plugin/utilities/assist/assist.dart'; |
| import 'package:analyzer_plugin/utilities/change_builder/change_builder_core.dart'; |
| |
| /** |
| * A partial implementation of an [AssistContributor] that provides a utility |
| * method to make it easier to add assists. |
| * |
| * Clients may not extend or implement this class, but are allowed to use it as |
| * a mix-in when creating a subclass of [AssistContributor]. |
| */ |
| abstract class AssistContributorMixin implements AssistContributor { |
| /** |
| * The collector to which assists should be added. |
| */ |
| AssistCollector get collector; |
| |
| /** |
| * Add an assist. Use the [kind] of the assist to get the message and priority, |
| * and use the change [builder] to get the edits that comprise the assist. If |
| * the message has parameters, then use the list of [args] to populate the |
| * message. |
| */ |
| void addAssist(AssistKind kind, ChangeBuilder builder, {List<Object> args}) { |
| SourceChange change = builder.sourceChange; |
| if (change.edits.isEmpty) { |
| return; |
| } |
| change.message = formatList(kind.message, args); |
| collector.addAssist( |
| new PrioritizedSourceChange(kind.priority, builder.sourceChange)); |
| } |
| } |