| // Copyright (c) 2016, 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 Functions include function declarations, methods, getters, |
| /// setters, constructors and function literals. |
| /// All functions have a signature and a body. |
| /// functionSignature: |
| /// metadata returnType? identifier formalParameterList |
| /// ; |
| /// returnType: void | type |
| /// ; |
| /// functionBody: |
| /// async? '=>' expression ';' | (async | async* | sync*)? block |
| /// ; |
| /// block: |
| /// '{' statements '}' |
| /// ; |
| /// |
| /// @description Checks different valid variants of asynchronous static methods |
| /// @author a.semenov@unipro.ru |
| |
| import 'dart:async'; |
| import '../../Utils/expect.dart'; |
| |
| // f() async => expression; |
| class A { |
| static Future<String> a1() async => 'a1'; |
| |
| static Future a2() async => 0; |
| |
| static Future<int> a3() async => 1; |
| } |
| |
| // f() { statements } |
| class B { |
| static Future<String> b1() async { |
| return 'b1'; |
| } |
| |
| static Future b2() async { |
| return 2; |
| } |
| |
| static Future<int> b3() async { |
| return 3; |
| } |
| } |
| // f(arg) async => expression; |
| class C { |
| static Future<String> c1(int x) async => 'c' + x.toString(); |
| |
| static Future c2(String y) async => y.length; |
| |
| static Future c3(z) async => z; |
| } |
| |
| // f(arg) { statements } |
| class D { |
| static Future<String> d1(int x) async { |
| return 'd' + x.toString(); |
| } |
| |
| static Future d2(String y) async { |
| return y.length; |
| } |
| |
| static Future d3(z) async { |
| return z; |
| } |
| } |
| main() { |
| asyncStart(); |
| Future.wait([ |
| A.a1(), A.a2(), A.a3(), |
| B.b1(), B.b2(), B.b3(), |
| C.c1(10), C.c2('hello'), C.c3(C.c3), |
| D.d1(15), D.d2('world'), D.d3(D.d3) |
| ]).then( |
| (_) { |
| asyncEnd(); |
| } |
| ); |
| } |