Robert Nystrom
b4d17e9c07
Change-Id: I3ec18bb7e7cfb087a58d744d357bf004c0438ba9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147813 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
48 lines
1.4 KiB
Dart
48 lines
1.4 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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// Test that generic methods can be specialized after being torn off, and that
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// their specialized versions are correctly constructed.
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library generic_methods_tearoff_specialization_test;
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import "package:expect/expect.dart";
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class A {
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T fun<T>(T t) => t;
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}
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typedef Int2Int = int Function(int);
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typedef String2String = String Function(String);
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typedef Object2Object = Object Function(Object);
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typedef GenericMethod = T Function<T>(T);
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main() {
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A a = new A();
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Int2Int f = a.fun;
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String2String g = a.fun;
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Object2Object h = a.fun;
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var generic = a.fun;
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Expect.isTrue(f is Int2Int);
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Expect.isTrue(f is! String2String);
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Expect.isTrue(f is! Object2Object);
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Expect.isTrue(f is! GenericMethod);
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Expect.isTrue(g is! Int2Int);
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Expect.isTrue(g is String2String);
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Expect.isTrue(g is! Object2Object);
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Expect.isTrue(g is! GenericMethod);
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Expect.isTrue(h is! Int2Int);
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Expect.isTrue(h is! String2String);
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Expect.isTrue(h is Object2Object);
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Expect.isTrue(g is! GenericMethod);
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Expect.isTrue(generic is! Int2Int);
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Expect.isTrue(generic is! String2String);
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Expect.isTrue(generic is! Object2Object);
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Expect.isTrue(generic is GenericMethod);
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}
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