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Change-Id: Ia12f714f41ad9bd9e6c0ddf051a8e05ab2d6282b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149392 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
28 lines
835 B
Dart
28 lines
835 B
Dart
// Copyright (c) 2012, 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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// Dart test program for testing arrays.
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import "package:expect/expect.dart";
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bar() => true;
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// The type propagation in Dart2Js wrongly took the intersection of all incoming
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// types in a loop-phi. In this case the back-edge brought type 'number' which,
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// combined with 'integer' (i = 0) was narrowed to 'integer'. As a result no
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// check was inserted for the list access.
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foo(a) {
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num i = 0;
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while (true) {
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if (i > 1) return a[i];
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if (bar()) {
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// Adding a double guarantees a double result. Therefore guard by an if.
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i = i + 1.5;
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}
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}
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}
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main() {
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Expect.throws(() => foo([1, 2]));
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}
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