dart-sdk/tests/language_2/generic_methods_tearoff_specialization_test.dart
Bob Nystrom 615be6451e Migrate block 114 (and some of 113).
generic_instanceof ... getter_closure_execution_order_test.

The main interesting one is generic_methods_type_expression_test. It
was testing old Dart 1.0-specific behavior and needed a lot of changes.

R=jmesserly@google.com

Review-Url: https://codereview.chromium.org/3001803002 .
2017-08-24 10:52:29 -07:00

48 lines
1.4 KiB
Dart

// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Test that generic methods can be specialized after being torn off, and that
// their specialized versions are correctly constructed.
library generic_methods_tearoff_specialization_test;
import "package:expect/expect.dart";
class A {
T fun<T>(T t) => t;
}
typedef Int2Int = int Function(int);
typedef String2String = String Function(String);
typedef Object2Object = Object Function(Object);
typedef GenericMethod = T Function<T>(T);
main() {
A a = new A();
Int2Int f = a.fun;
String2String g = a.fun;
Object2Object h = a.fun;
var generic = a.fun;
Expect.isTrue(f is Int2Int);
Expect.isTrue(f is! String2String);
Expect.isTrue(f is! Object2Object);
Expect.isTrue(f is! GenericMethod);
Expect.isTrue(g is! Int2Int);
Expect.isTrue(g is String2String);
Expect.isTrue(g is! Object2Object);
Expect.isTrue(g is! GenericMethod);
Expect.isTrue(h is! Int2Int);
Expect.isTrue(h is! String2String);
Expect.isTrue(h is Object2Object);
Expect.isTrue(g is! GenericMethod);
Expect.isTrue(generic is! Int2Int);
Expect.isTrue(generic is! String2String);
Expect.isTrue(generic is! Object2Object);
Expect.isTrue(generic is GenericMethod);
}