| // 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.completion.suggestion.builder; |
| |
| import 'package:analysis_server/src/protocol.dart' hide Element; |
| import 'package:analysis_server/src/services/completion/dart_completion_manager.dart'; |
| import 'package:analyzer/src/generated/element.dart'; |
| |
| /** |
| * This class visits elements in a class and provides suggestions based upon |
| * the visible members in that class. Clients should call |
| * [ClassElementSuggestionBuilder.suggestionsFor]. |
| */ |
| class ClassElementSuggestionBuilder extends GeneralizingElementVisitor { |
| final DartCompletionRequest request; |
| final Set<String> _completions = new Set<String>(); |
| |
| ClassElementSuggestionBuilder(this.request); |
| |
| @override |
| visitClassElement(ClassElement element) { |
| element.visitChildren(this); |
| element.allSupertypes.forEach((InterfaceType type) { |
| type.element.visitChildren(this); |
| }); |
| } |
| |
| @override |
| visitElement(Element element) { |
| // ignored |
| } |
| |
| @override |
| visitFieldElement(FieldElement element) { |
| _addSuggestion( |
| element, |
| CompletionSuggestionKind.FIELD, |
| element.type, |
| element.enclosingElement); |
| } |
| |
| @override |
| visitMethodElement(MethodElement element) { |
| _addSuggestion( |
| element, |
| CompletionSuggestionKind.METHOD, |
| element.returnType, |
| element.enclosingElement); |
| } |
| |
| @override |
| visitPropertyAccessorElement(PropertyAccessorElement element) { |
| if (element.isGetter) { |
| _addSuggestion( |
| element, |
| CompletionSuggestionKind.GETTER, |
| element.returnType, |
| element.enclosingElement); |
| } else if (element.isSetter) { |
| _addSuggestion( |
| element, |
| CompletionSuggestionKind.SETTER, |
| element.returnType, |
| element.enclosingElement); |
| } |
| } |
| |
| void _addSuggestion(Element element, CompletionSuggestionKind kind, |
| DartType type, ClassElement enclosingElement) { |
| if (element.isSynthetic) { |
| return; |
| } |
| if (element.isPrivate) { |
| LibraryElement elementLibrary = |
| element.getAncestor((parent) => parent is LibraryElement); |
| LibraryElement unitLibrary = |
| request.unit.element.getAncestor((parent) => parent is LibraryElement); |
| if (elementLibrary != unitLibrary) { |
| return; |
| } |
| } |
| String completion = element.displayName; |
| if (completion == null || |
| completion.length <= 0 || |
| !_completions.add(completion)) { |
| return; |
| } |
| var suggestion = new CompletionSuggestion( |
| kind, |
| CompletionRelevance.DEFAULT, |
| completion, |
| completion.length, |
| 0, |
| element.isDeprecated, |
| false); |
| if (enclosingElement != null) { |
| suggestion.declaringType = enclosingElement.displayName; |
| } |
| if (type != null) { |
| String typeName = type.displayName; |
| if (typeName != null && typeName.length > 0 && typeName != 'dynamic') { |
| suggestion.returnType = typeName; |
| } |
| } |
| request.suggestions.add(suggestion); |
| } |
| |
| /** |
| * Add suggestions for the visible members in the given class |
| */ |
| static void suggestionsFor(DartCompletionRequest request, Element element) { |
| if (element is ClassElement) { |
| element.accept(new ClassElementSuggestionBuilder(request)); |
| } |
| } |
| } |
| |
| /** |
| * This class visits elements in a library and provides suggestions based upon |
| * the visible members in that library. Clients should call |
| * [LibraryElementSuggestionBuilder.suggestionsFor]. |
| */ |
| class LibraryElementSuggestionBuilder extends GeneralizingElementVisitor { |
| |
| final DartCompletionRequest request; |
| |
| LibraryElementSuggestionBuilder(this.request); |
| |
| @override |
| visitClassElement(ClassElement element) { |
| _addSuggestion(element); |
| } |
| |
| @override |
| visitCompilationUnitElement(CompilationUnitElement element) { |
| element.visitChildren(this); |
| } |
| |
| @override |
| visitElement(Element element) { |
| // ignored |
| } |
| |
| @override |
| visitFunctionTypeAliasElement(FunctionTypeAliasElement element) { |
| _addSuggestion(element); |
| } |
| |
| @override |
| visitTopLevelVariableElement(TopLevelVariableElement element) { |
| _addSuggestion(element); |
| } |
| |
| void _addSuggestion(Element element) { |
| if (element != null) { |
| String completion = element.name; |
| if (completion != null && completion.length > 0) { |
| request.suggestions.add( |
| new CompletionSuggestion( |
| new CompletionSuggestionKind.fromElementKind(element.kind), |
| CompletionRelevance.DEFAULT, |
| completion, |
| completion.length, |
| 0, |
| element.isDeprecated, |
| false)); |
| } |
| } |
| } |
| |
| /** |
| * Add suggestions for the visible members in the given library |
| */ |
| static void suggestionsFor(DartCompletionRequest request, |
| LibraryElement library) { |
| if (library != null) { |
| library.visitChildren(new LibraryElementSuggestionBuilder(request)); |
| } |
| } |
| } |