floitsch@google.com
d356ee6c96
Review URL: https://chromiumcodereview.appspot.com//10696120 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9441 260f80e4-7a28-3924-810f-c04153c831b5
28 lines
744 B
Dart
28 lines
744 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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// This test triggered an NPE in dart2js.
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// The bug needed:
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// - double usage of the same variable in one expression ("b != b").
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// - replacement of "b" with "typechecked b".
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// - ...
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// The example below is minimal (as far as I was able to do).
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num foo(num a, num b) {
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if (a > b) return b;
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if (b is double) {
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if (true) {
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if (true) {
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return (a + b) * a * b;
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}
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}
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// Check for NaN and b == -0.0.
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if (a == 0 && b == 0 || b != b) return b;
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}
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}
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main() {
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Expect.equals(1, foo(2, 1));
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}
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