Brian Wilkerson
e6c41e9d3d
R=maxkim@google.com Review-Url: https://codereview.chromium.org/2924503002 .
62 lines
2.6 KiB
Dart
62 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/protocol/protocol_generated.dart';
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import 'package:analyzer_plugin/src/utilities/completion/completion_core.dart';
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import 'package:analyzer_plugin/utilities/completion/completion_core.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] to
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* provide most of the implementation for handling code completion requests.
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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 CompletionMixin implements ServerPlugin {
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/**
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* Return a list containing the completion contributors that should be used to
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* create completion suggestions when used in the context of the given
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* analysis [driver].
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*/
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List<CompletionContributor> getCompletionContributors(
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covariant AnalysisDriverGeneric driver);
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/**
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* Return the result of using the given analysis [driver] to produce a fully
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* resolved AST for the file with the given [path].
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*/
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Future<ResolveResult> getResolveResultForCompletion(
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covariant AnalysisDriverGeneric driver, String path);
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@override
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Future<CompletionGetSuggestionsResult> handleCompletionGetSuggestions(
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CompletionGetSuggestionsParams parameters) async {
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String path = parameters.file;
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ContextRoot contextRoot = contextRootContaining(path);
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if (contextRoot == null) {
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// Return an error from the request.
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throw new RequestFailure(
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RequestErrorFactory.pluginError('Failed to analyze $path', null));
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}
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AnalysisDriverGeneric driver = driverMap[contextRoot];
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ResolveResult analysisResult =
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await getResolveResultForCompletion(driver, path);
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CompletionRequestImpl request = new CompletionRequestImpl(
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resourceProvider, analysisResult, parameters.offset);
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CompletionGenerator generator =
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new CompletionGenerator(getCompletionContributors(driver));
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GeneratorResult result =
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await generator.generateCompletionResponse(request);
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result.sendNotifications(channel);
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return result.result;
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}
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}
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