blob: 5e0e652776370fd59cc721f2e30d8d9e4a374506 [file] [log] [blame]
// Copyright (c) 2011, 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.
// @dart = 2.9
// Dart test for function type alias with a type parameter as result type.
import "package:expect/expect.dart";
typedef bool F<bool>(bool a); // 'bool' is not the boolean type.
bool bar(bool a) {}
int baz(int a) {}
class A<T> {
T foo(T a) {}
}
main() {
Expect.isTrue(bar is! F);
Expect.isTrue(baz is! F);
Expect.isTrue(bar is! F<Object>);
Expect.isTrue(baz is! F<Object>);
Expect.isTrue(bar is F<bool>);
Expect.isTrue(baz is F<int>);
Expect.isTrue(bar is! F<int>);
Expect.isTrue(baz is! F<bool>);
var b = new A<bool>();
var i = new A<int>();
Expect.isTrue(b.foo is F, 'runtime type of covaraint parameters is Object');
Expect.isTrue(i.foo is F, 'runtime type of covaraint parameters is Object');
Expect.isTrue(
b.foo is F<Object>, 'runtime type of covaraint parameters is Object');
Expect.isTrue(
i.foo is F<Object>, 'runtime type of covaraint parameters is Object');
Expect.isTrue(b.foo is F<bool>);
Expect.isTrue(i.foo is F<int>);
Expect.isTrue(b.foo is! F<int>);
Expect.isTrue(i.foo is! F<bool>);
}