Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
36 lines
1020 B
Dart
36 lines
1020 B
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:expect/expect.dart';
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bool nonInlinedNumTypeCheck(Object object) {
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if (new DateTime.now().millisecondsSinceEpoch == 42) {
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return nonInlinedNumTypeCheck(object);
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}
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return object is num;
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}
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bool nonInlinedStringTypeCheck(Object object) {
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if (new DateTime.now().millisecondsSinceEpoch == 42) {
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return nonInlinedStringTypeCheck(object);
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}
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return object is String;
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}
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int confuse(x) {
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if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x - 1);
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return x;
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}
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main() {
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var o = ["foo", 499][confuse(0)];
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// The is-checks in the '!' must not be propagated to the if-body, but
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// the second is-check should.
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if (!(o is num) && o is String) {
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Expect.isFalse((nonInlinedNumTypeCheck(o)));
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Expect.isTrue((nonInlinedStringTypeCheck(o)));
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}
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}
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