| // 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 'package:analyzer/dart/element/element.dart'; |
| |
| extension ClassElementExtensions on ClassElement { |
| /// Return `true` if this element represents the class `Iterable` from |
| /// `dart:core`. |
| bool get isDartCoreIterable => name == 'Iterable' && library.isDartCore; |
| |
| /// Return `true` if this element represents the class `List` from |
| /// `dart:core`. |
| bool get isDartCoreList => name == 'List' && library.isDartCore; |
| |
| /// Return `true` if this element represents the class `Map` from |
| /// `dart:core`. |
| bool get isDartCoreMap => name == 'Map' && library.isDartCore; |
| |
| /// Return `true` if this element represents the class `Set` from |
| /// `dart:core`. |
| bool get isDartCoreSet => name == 'Set' && library.isDartCore; |
| } |
| |
| extension ElementExtension on Element { |
| /// Return `true` if this element, the enclosing class (if there is one), or |
| /// the enclosing library, has been annotated with the `@deprecated` |
| /// annotation. |
| bool get hasOrInheritsDeprecated { |
| if (hasDeprecated) { |
| return true; |
| } |
| var ancestor = enclosingElement; |
| if (ancestor is ClassElement) { |
| if (ancestor.hasDeprecated) { |
| return true; |
| } |
| ancestor = ancestor.enclosingElement; |
| } |
| return ancestor is CompilationUnitElement && |
| ancestor.enclosingElement.hasDeprecated; |
| } |
| |
| /// Return this element and all its enclosing elements. |
| Iterable<Element> get withAncestors sync* { |
| var current = this; |
| while (true) { |
| yield current; |
| var enclosing = current.enclosingElement; |
| if (enclosing == null) { |
| break; |
| } |
| current = enclosing; |
| } |
| } |
| } |
| |
| extension LibraryElementExtensions on LibraryElement { |
| /// Return all extensions exported from this library. |
| Iterable<ExtensionElement> get exportedExtensions { |
| return exportNamespace.definedNames.values.whereType(); |
| } |
| } |
| |
| extension MethodElementExtensions on MethodElement { |
| /// Return `true` if this element represents the method `cast` from either |
| /// `Iterable`, `List`, `Map`, or `Set`. |
| bool get isCastMethod { |
| if (name != 'cast') { |
| return false; |
| } |
| var definingClass = enclosingElement; |
| if (definingClass is! ClassElement) { |
| return false; |
| } |
| return definingClass.isDartCoreIterable || |
| definingClass.isDartCoreList || |
| definingClass.isDartCoreMap || |
| definingClass.isDartCoreSet; |
| } |
| |
| /// Return `true` if this element represents the method `toList` from either |
| /// `Iterable` or `List`. |
| bool get isToListMethod { |
| if (name != 'toList') { |
| return false; |
| } |
| var definingClass = enclosingElement; |
| if (definingClass is! ClassElement) { |
| return false; |
| } |
| return definingClass.isDartCoreIterable || definingClass.isDartCoreList; |
| } |
| } |