| // Copyright (c) 2022, 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'; |
| import 'package:analyzer/dart/element/type.dart'; |
| |
| extension DartTypeExtension on DartType { |
| /// The static element associataed with this type, where documentable, and |
| /// `null` otherwise. |
| /// |
| /// For example, the documentable element of [DynamicType] is `null`, as there |
| /// is no documentation for `dynamic` which we can link to. |
| TypeDefiningElement? get documentableElement { |
| final self = this; |
| return switch (self) { |
| InterfaceType() => self.element, |
| NeverType() => self.element as TypeDefiningElement, |
| TypeParameterType() => self.element, |
| _ => null |
| }; |
| } |
| } |