| /* |
| * 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 A type alias declares a name for a type expression. |
| * <typeAlias> ::=<metadata> typedef <typeIdentifier> <typeParameters>?‘=’<type> |
| * ‘;’ |
| * | <metadata> typedef <functionTypeAlias> |
| * <functionTypeAlias> ::= <functionPrefix> <formalParameterPart> ‘;’ |
| * <functionPrefix> ::= <type>? <identifier> |
| * @description Checks that type alias syntax works as expected. Test |
| * built-in types |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| const int meta = 1; |
| |
| @meta typedef AFuture1 = Future; |
| @meta typedef AFuture2<X> = Future<X>; |
| |
| @meta typedef AFutureOr1 = FutureOr; |
| @meta typedef AFutureOr2<X> = FutureOr<X>; |
| |
| main() { |
| AFuture1 af1 = new Future.value("Lily was here"); |
| Expect.isTrue(af1 is Future<dynamic>); |
| |
| AFuture2<String> af2 = new Future<String>.value("Lily was here"); |
| Expect.isTrue(af2 is Future<String>); |
| |
| AFutureOr1 afr1 = new Future.value("Lily was here"); |
| Expect.isTrue(afr1 is Future<dynamic>); |
| |
| AFutureOr1 afr11 = "Lily was here"; |
| Expect.isTrue(afr11 is dynamic); |
| |
| AFutureOr2<String> afr2 = new Future<String>.value("Lily was here"); |
| Expect.isTrue(afr2 is Future<String>); |
| |
| AFutureOr2<String> afr22 = "Lily was here"; |
| Expect.isTrue(afr22 is String); |
| } |