| /* |
| * Copyright (c) 2015, 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 If sE is an asynchronous for loop, let ak be the set of |
| * asynchronous for loops and yield-each statements enclosing sc that are |
| * enclosed in sE , 1 ≤ k ≤ m, where ak is enclosed in ak+1 . The stream |
| * subscriptions associated with aj are canceled, 1 ≤ j ≤ m, innermost first, |
| * so that aj is canceled before aj+1 . |
| * |
| * @description Check various mixes of synchronous while and asynchronous for |
| * loops with single continue statement. |
| * |
| * @issue 25247 |
| * @issue 25234 |
| * @author a.semenov@unipro.ru |
| */ |
| import 'dart:async'; |
| import '../../../Utils/expect.dart'; |
| import 'stream_utils.dart' as StreamUtils; |
| |
| Stream makeStream(Iterable iterable, int id, List log) { |
| return StreamUtils.makeStream(iterable, beforeCancel: () { log.add(id); }); |
| } |
| |
| Future test1() async { |
| List log = []; |
| |
| L: |
| await for (String s in makeStream(['a0', 'b0'], 0, log)) { |
| while (log.length < 10) { |
| continue L; |
| log.add(s); |
| } |
| log.add(s); |
| } |
| Expect.listEquals([], log); |
| } |
| |
| Future test2() async { |
| List log = []; |
| int i = 0; |
| |
| L: |
| while (i < 2) { |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| continue L; |
| log.add(s); |
| } |
| } |
| Expect.listEquals([0, 1], log); |
| } |
| |
| Future test3() async { |
| List log = []; |
| int i = 0; |
| |
| while (i < 2) { |
| L: |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| continue L; |
| log.add(s); |
| } |
| } |
| Expect.listEquals([], log); |
| } |
| |
| Future test4() async { |
| List log = []; |
| int i = 0; |
| |
| L: |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| while (log.length < 10) { |
| await for (String s in makeStream(['a1', 'b1'], i++, log)) { |
| while (log.length < 10) { |
| await for (String s in makeStream(['a2', 'b2'], i++, log)) { |
| continue L; |
| log.add(s); |
| } |
| log.add(s); |
| } |
| log.add(s); |
| } |
| log.add(s); |
| } |
| log.add(s); |
| } |
| Expect.listEquals([2, 1, 4, 3], log); |
| } |
| |
| Future test5() async { |
| List log = []; |
| int i = 0; |
| |
| L: |
| while (i < 4) { |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| while (log.length < 10) { |
| await for (String s in makeStream(['a1', 'b1'], i++, log)) { |
| while (log.length < 10) { |
| continue L; |
| } |
| } |
| } |
| } |
| } |
| Expect.listEquals([1, 0, 3, 2], log); |
| } |
| |
| Future test6() async { |
| List<int> log = []; |
| int i = 0; |
| |
| while (i < 4) { |
| L: |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| while (log.length < 10) { |
| await for (String s in makeStream(['a1', 'b1'], i++, log)) { |
| while (log.length < 10) { |
| continue L; |
| } |
| } |
| } |
| } |
| } |
| Expect.listEquals([1, 2, 4, 5], log); |
| } |
| |
| Future test7() async { |
| List<int> log = []; |
| int i = 0; |
| while (i < 8) { |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| int k = 0; |
| L: |
| while (k < 2) { |
| k++; |
| await for (String s in makeStream(['a1', 'b1'], i++, log)) { |
| while (log.length < 10) { |
| continue L; |
| } |
| } |
| } |
| } |
| } |
| Expect.listEquals([1, 2, 3, 4, 6, 7, 8, 9], log); |
| } |
| |
| Future test8() async { |
| List<int> log = []; |
| int i = 0; |
| |
| await for (String s in makeStream(['a0', 'b0'], i++, log)) { |
| int k = 0; |
| while (k < 2) { |
| L: |
| await for (String s in makeStream(['a1', 'b1'], i++, log)) { |
| while (log.length < 10) { |
| await for (String s in makeStream(['a2', 'b2'], i++, log)) { |
| continue L; |
| } |
| } |
| } |
| k++; |
| } |
| } |
| Expect.listEquals([2, 3, 5, 6, 8, 9, 11, 12], log); |
| } |
| |
| main() { |
| asyncStart(); |
| Future.wait([ |
| test1(), test2(), test3(), test4(), |
| test5(), test6(), test7(), test8() |
| ]).then((v) => asyncEnd()); |
| } |