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>
25 lines
713 B
Dart
25 lines
713 B
Dart
// Copyright (c) 2013, 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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// Regression test for dart2js that used to infinite loop on
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// speculatively propagating types.
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class Bar {
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noSuchMethod(e) => null;
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}
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main() {
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var d = new Bar();
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while (false) {
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// [input] will change from indexable to unknown: the use line 20
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// changes its decision because [a2] changes its type from unknown to
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// null.
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var input = ((x) {})(null);
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var p2 = input.keys.firstWhere(null);
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var a2 = input.keys.firstWhere(null);
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print(input[a2] == p2);
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}
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}
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