blob: c58ac78f7fc6cc3731f06bee56302f168b86f544 [file] [log] [blame]
// Copyright (c) 2019, 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.
/// @assertion an extension declaration is a top-level declaration with a grammar
/// similar to:
/// <extension> ::=
/// `extension' <identifier>? <typeParameters>? `on' <type> `?'? `{'
/// memberDeclaration*
/// `}'
/// Such a declaration introduces its name (the identifier) into the surrounding
/// scope. The name does not denote a type, but it can be used to denote the
/// extension itself in various places. The name can be hidden or shown in import
/// or export declarations.
/// @description Check that the name does not denote a type
/// @author
extension MyFancyList<T> on List<T> {
int get doubleLength => this.length * 2;
List<T> operator-() => this.reversed.toList();
List<List<T>> split(int at) => <List<T>>[this.sublist(0, at), this.sublist(at)];
static String get className => "List";
main() {
MyFancyList<String> list = ["Lily", "was", "here"];
// [analyzer] unspecified
// [cfe] unspecified