Brian Wilkerson
608bf972b0
R=scheglov@google.com Review-Url: https://codereview.chromium.org/3004733002 .
69 lines
2.6 KiB
Dart
69 lines
2.6 KiB
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:async';
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import 'package:analyzer/dart/analysis/results.dart';
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import 'package:analyzer/src/dart/analysis/driver.dart';
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import 'package:analyzer_plugin/plugin/plugin.dart';
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import 'package:analyzer_plugin/protocol/protocol.dart';
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import 'package:analyzer_plugin/src/utilities/folding/folding.dart';
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import 'package:analyzer_plugin/utilities/folding/folding.dart';
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import 'package:analyzer_plugin/utilities/generator.dart';
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/**
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* A mixin that can be used when creating a subclass of [ServerPlugin] and
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* mixing in [FoldingMixin]. This implements the creation of the folding
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* request based on the assumption that the driver being created is an
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* [AnalysisDriver].
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*
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* Clients may not extend or implement this class, but are allowed to use it as
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* a mix-in when creating a subclass of [ServerPlugin] that also uses
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* [FoldingMixin] as a mix-in.
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*/
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abstract class DartFoldingMixin implements FoldingMixin {
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@override
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Future<FoldingRequest> getFoldingRequest(String path) async {
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ResolveResult result = await getResolveResult(path);
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return new DartFoldingRequestImpl(resourceProvider, result);
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}
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}
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/**
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* A mixin that can be used when creating a subclass of [ServerPlugin] to
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* provide most of the implementation for producing folding notifications.
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*
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* Clients may not extend or implement this class, but are allowed to use it as
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* a mix-in when creating a subclass of [ServerPlugin].
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*/
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abstract class FoldingMixin implements ServerPlugin {
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/**
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* Return a list containing the folding contributors that should be used
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* to create folding regions for the file with the given [path].
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*/
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List<FoldingContributor> getFoldingContributors(String path);
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/**
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* Return the folding request that should be passes to the contributors
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* returned from [getFoldingContributors].
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*
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* Throw a [RequestFailure] if the request could not be created.
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*/
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Future<FoldingRequest> getFoldingRequest(String path);
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@override
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Future<Null> sendFoldingNotification(String path) async {
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try {
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FoldingRequest request = await getFoldingRequest(path);
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FoldingGenerator generator =
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new FoldingGenerator(getFoldingContributors(path));
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GeneratorResult generatorResult =
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await generator.generateFoldingNotification(request);
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generatorResult.sendNotifications(channel);
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} on RequestFailure {
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// If we couldn't analyze the file, then don't send a notification.
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}
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}
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}
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