Nate Biggs
f8c6fe1446
Change-Id: Idca708abb1defca7ce1db8c6923c6f31f8ab3438 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278840 Reviewed-by: Stephen Adams <sra@google.com> Commit-Queue: Nate Biggs <natebiggs@google.com>
45 lines
1.2 KiB
Dart
45 lines
1.2 KiB
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 = 2.7
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// This test exercises a sound null safety issue that arose in the compiler by
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// allocating an argument slot for a type parameter that was determined to be
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// unused. This resulted in `null` being added to a list that wouldn't otherwise
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// need to support null.
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import 'package:expect/expect.dart';
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import 'package:async_helper/async_helper.dart';
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import '../helpers/compiler_helper.dart';
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const String TEST = r"""
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class A {
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Object value;
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@pragma('dart2js:tryInline')
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@pragma('dart2js:as:trust')
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T foo<T>() => value as T;
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}
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void main () {
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final a = A();
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a.value = 'val';
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a.foo();
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}
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""";
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main() {
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test() async {
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await compile(TEST, enableTypeAssertions: true, disableInlining: false,
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check: (generated) {
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// 'foo' should be inlined and no type arg should be needed.
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Expect.isFalse(generated.contains('foo'));
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});
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}
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asyncTest(() async {
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print('--test from kernel------------------------------------------------');
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await test();
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});
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}
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