Paul Berry
5b964887ee
The feature is not turned on yet; these tests will verify that it's working properly once it is enabled. Bug: https://github.com/dart-lang/language/issues/1274 Change-Id: Ia48996d4525b84b523627a7b254cba18bdef48c7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/177641 Reviewed-by: Leaf Petersen <leafp@google.com>
28 lines
686 B
Dart
28 lines
686 B
Dart
// Copyright (c) 2020, 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 '../../static_type_helper.dart';
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// This test checks that a local variable whose value is `null` cannot be used
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// in place of a literal `null` in flow analysis.
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test(int? x) {
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if (x == null) {
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x.expectStaticType<Exactly<int?>>();
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} else {
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x.expectStaticType<Exactly<int>>();
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}
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int? y = null;
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if (x == y) {
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x.expectStaticType<Exactly<int?>>();
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} else {
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x.expectStaticType<Exactly<int?>>();
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}
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}
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main() {
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test(0);
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test(null);
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}
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