| // Copyright (c) 2020, 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 'dart:async'; |
| |
| import 'package:analysis_server/protocol/protocol.dart'; |
| import 'package:analysis_server/protocol/protocol_constants.dart'; |
| import 'package:analysis_server/protocol/protocol_generated.dart' |
| hide AnalysisOptions; |
| import 'package:analyzer/file_system/file_system.dart'; |
| import 'package:analyzer/file_system/memory_file_system.dart'; |
| import 'package:analyzer_plugin/protocol/protocol_common.dart'; |
| import 'package:matcher/matcher.dart'; |
| import 'package:meta/meta.dart'; |
| |
| import '../../constants.dart'; |
| import 'abstract_client.dart'; |
| import 'expect_mixin.dart'; |
| |
| CompletionSuggestion _createCompletionSuggestionFromAvailableSuggestion( |
| AvailableSuggestion suggestion) { |
| // todo (pq): IMPLEMENT |
| // com.jetbrains.lang.dart.ide.completion.DartServerCompletionContributor#createCompletionSuggestionFromAvailableSuggestion |
| return CompletionSuggestion( |
| // todo (pq): in IDEA, this is "UNKNOWN" but here we need a value; figure out what's up. |
| CompletionSuggestionKind.INVOCATION, |
| 0, |
| suggestion.label, |
| 0, |
| 0, |
| suggestion.element.isDeprecated, |
| false); |
| } |
| |
| class CompletionDriver extends AbstractClient with ExpectMixin { |
| final bool supportsAvailableSuggestions; |
| final MemoryResourceProvider _resourceProvider; |
| |
| Map<String, Completer<void>> receivedSuggestionsCompleters = {}; |
| List<CompletionSuggestion> suggestions = []; |
| Map<String, List<CompletionSuggestion>> allSuggestions = {}; |
| |
| final Map<int, AvailableSuggestionSet> idToSetMap = {}; |
| final Map<String, AvailableSuggestionSet> uriToSetMap = {}; |
| final Map<String, CompletionResultsParams> idToSuggestions = {}; |
| final Map<String, ExistingImports> fileToExistingImports = {}; |
| |
| String completionId; |
| int completionOffset; |
| int replacementOffset; |
| int replacementLength; |
| |
| CompletionDriver({ |
| @required this.supportsAvailableSuggestions, |
| @required MemoryResourceProvider resourceProvider, |
| @required String projectPath, |
| @required String testFilePath, |
| }) : _resourceProvider = resourceProvider, |
| super( |
| projectPath: projectPath, |
| testFilePath: testFilePath, |
| sdkPath: resourceProvider.convertPath('/sdk')); |
| |
| @override |
| MemoryResourceProvider get resourceProvider => _resourceProvider; |
| |
| @override |
| String addTestFile(String content, {int offset}) { |
| completionOffset = content.indexOf('^'); |
| if (offset != null) { |
| expect(completionOffset, -1, reason: 'cannot supply offset and ^'); |
| completionOffset = offset; |
| return super.addTestFile(content); |
| } |
| expect(completionOffset, isNot(equals(-1)), reason: 'missing ^'); |
| int nextOffset = content.indexOf('^', completionOffset + 1); |
| expect(nextOffset, equals(-1), reason: 'too many ^'); |
| return super.addTestFile(content.substring(0, completionOffset) + |
| content.substring(completionOffset + 1)); |
| } |
| |
| @override |
| void createProject({Map<String, String> packageRoots}) { |
| super.createProject(packageRoots: packageRoots); |
| if (supportsAvailableSuggestions) { |
| var request = CompletionSetSubscriptionsParams( |
| [CompletionService.AVAILABLE_SUGGESTION_SETS]).toRequest('0'); |
| handleSuccessfulRequest(request, handler: completionHandler); |
| } |
| } |
| |
| Future<List<CompletionSuggestion>> getSuggestions() async { |
| await waitForTasksFinished(); |
| |
| var request = CompletionGetSuggestionsParams(testFilePath, completionOffset) |
| .toRequest('0'); |
| var response = await waitResponse(request); |
| var result = CompletionGetSuggestionsResult.fromResponse(response); |
| completionId = result.id; |
| assertValidId(completionId); |
| await _getResultsCompleter(completionId).future; |
| return suggestions; |
| } |
| |
| @override |
| File newFile(String path, String content, [int stamp]) => |
| resourceProvider.newFile(path, content, stamp); |
| |
| @override |
| Folder newFolder(String path) => resourceProvider.newFolder(path); |
| |
| @override |
| @mustCallSuper |
| Future<void> processNotification(Notification notification) async { |
| if (notification.event == COMPLETION_RESULTS) { |
| var params = CompletionResultsParams.fromNotification(notification); |
| var id = params.id; |
| assertValidId(id); |
| idToSuggestions[id] = params; |
| replacementOffset = params.replacementOffset; |
| replacementLength = params.replacementLength; |
| suggestions = params.results; |
| expect(allSuggestions.containsKey(id), isFalse); |
| allSuggestions[id] = params.results; |
| |
| for (var set in params.includedSuggestionSets) { |
| var id = set.id; |
| while (!idToSetMap.containsKey(id)) { |
| await Future.delayed(const Duration(milliseconds: 1)); |
| } |
| var suggestionSet = idToSetMap[id]; |
| for (var suggestion in suggestionSet.items) { |
| var completionSuggestion = |
| _createCompletionSuggestionFromAvailableSuggestion(suggestion |
| //, includedSet.getRelevance(), includedRelevanceTags |
| ); |
| suggestions.add(completionSuggestion); |
| } |
| } |
| |
| _getResultsCompleter(id).complete(null); |
| } else if (notification.event == |
| COMPLETION_NOTIFICATION_AVAILABLE_SUGGESTIONS) { |
| var params = CompletionAvailableSuggestionsParams.fromNotification( |
| notification, |
| ); |
| for (var set in params.changedLibraries) { |
| idToSetMap[set.id] = set; |
| uriToSetMap[set.uri] = set; |
| } |
| for (var id in params.removedLibraries) { |
| var set = idToSetMap.remove(id); |
| uriToSetMap.remove(set?.uri); |
| } |
| } else if (notification.event == COMPLETION_NOTIFICATION_EXISTING_IMPORTS) { |
| var params = CompletionExistingImportsParams.fromNotification( |
| notification, |
| ); |
| fileToExistingImports[params.file] = params.imports; |
| } else if (notification.event == SERVER_NOTIFICATION_ERROR) { |
| throw Exception('server error: ${notification.toJson()}'); |
| } |
| } |
| |
| Future<AvailableSuggestionSet> waitForSetWithUri(String uri) async { |
| while (true) { |
| var result = uriToSetMap[uri]; |
| if (result != null) { |
| return result; |
| } |
| await Future.delayed(const Duration(milliseconds: 1)); |
| } |
| } |
| |
| Completer<void> _getResultsCompleter(String id) => |
| receivedSuggestionsCompleters.putIfAbsent(id, () => Completer<void>()); |
| } |