| // 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. |
| |
| import "dart:async"; |
| import "package:expect/expect.dart"; |
| import "package:async_helper/async_helper.dart"; |
| |
| post0(a) async { |
| return await a++; |
| } |
| |
| post1(a) async { |
| return await a++ + await a++; |
| } |
| |
| pref0(a) async { |
| return await ++a; |
| } |
| |
| pref1(a) async { |
| return await ++a + await ++a; |
| } |
| |
| sum(a) async { |
| var s = 0; |
| for (int i = 0; i < a.length; /* nothing */) { |
| s += a[await i++]; |
| } |
| return s; |
| } |
| |
| // Adapted from repro case for issue 22875. |
| sum2(n) async { |
| int i, s = 0; |
| for (i = 1; i <= n; await i++) { |
| // The loop-local variable j was necessary for the crash in 22785. |
| var j = await i; |
| s += j; |
| } |
| return s; |
| } |
| |
| test() async { |
| Expect.equals(10, await post0(10)); |
| Expect.equals(21, await post1(10)); |
| Expect.equals(11, await pref0(10)); |
| Expect.equals(23, await pref1(10)); |
| Expect.equals(10, await sum([1, 2, 3, 4])); |
| Expect.equals(10, await sum2(4)); |
| } |
| |
| main() { |
| asyncStart(); |
| test().then((_) { |
| asyncEnd(); |
| }); |
| } |