| /* |
| * 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 synchronous |
| * generator methods |
| * |
| * @author a.semenov@unipro.ru |
| */ |
| import '../../Utils/expect.dart'; |
| |
| class A { |
| Iterable<String> a1() sync* { |
| yield 'a'; |
| } |
| |
| Iterable a2() sync* { |
| yield 1; |
| } |
| |
| a3() sync* { |
| yield 2; |
| } |
| } |
| |
| class B { |
| Iterable<String> b1(int x) sync* { |
| yield new String.fromCharCode(x + 'a'.codeUnitAt(0)); |
| } |
| |
| Iterable b2(String y) sync* { |
| yield y.length; |
| } |
| |
| b3(z) sync* { |
| yield z; |
| } |
| } |
| |
| main() { |
| A a = new A(); |
| Expect.equals('a', a.a1().first); |
| Expect.equals(1, a.a2().first); |
| Expect.equals(2, a.a3().first); |
| B b = new B(); |
| Expect.equals('e', b.b1(4).first); |
| Expect.equals(5, b.b2('hello').first); |
| Expect.equals(b.b3, b.b3(b.b3).first); |
| } |