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912005267d
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>
62 lines
1.5 KiB
Dart
62 lines
1.5 KiB
Dart
// Copyright (c) 2017, 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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// dart2jsOptions=--strong
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// Regression test for http://dartbug.com/28749.
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//
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// This would crash at compile time because inner typedefs remain after calling
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// [type.unalias]. Expanding the typedef causes the inputs to be used multiple
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// types, breaking the invariant of HTypeInfoExpression that the type variable
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// occurrences correspond to inputs.
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import 'package:expect/expect.dart';
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typedef void F<T>(T value);
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typedef F<U> Converter<U>(F<U> function);
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typedef Converter<V> ConvertFactory<V>(int input);
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class B<W> {
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final field = new Wrap<ConvertFactory<W>>();
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@pragma('dart2js:noInline')
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B();
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}
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class Wrap<X> {
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@pragma('dart2js:noInline')
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Wrap();
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}
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foo<Y>(int x) {
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if (x == 0)
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return new Wrap<ConvertFactory<Y>>().runtimeType;
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else
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return new B<Y>().field.runtimeType;
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}
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void main() {
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var name = '${Wrap}';
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if ('$Object' != 'Object') return; // minified
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Expect.equals(
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'Wrap<(int) => ((int) => void) => (int) => void>',
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'${new B<int>().field.runtimeType}',
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);
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Expect.equals(
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'Wrap<(int) => ((bool) => void) => (bool) => void>',
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'${new B<bool>().field.runtimeType}',
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);
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Expect.equals(
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'Wrap<(int) => ((int) => void) => (int) => void>',
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'${foo<int>(0)}',
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);
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Expect.equals(
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'Wrap<(int) => ((String) => void) => (String) => void>',
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'${foo<String>(1)}',
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);
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}
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