blob: c28d1d0da642af239a31fa7dc560de95d428bbcc [file] [log] [blame]
// Copyright (c) 2013, 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 test program for constructors and initializers.
// Check function subtyping for generic bound closures.
import 'package:expect/expect.dart';
typedef void Foo(bool a, [String b]);
typedef void Bar(bool a, [String b]);
typedef void Baz(bool a, {String b});
typedef int Boz(bool a);
class C<T> {
void test(String nameOfT, bool expectedResult, bool expectedBozResult) {
Expect.equals(expectedResult, (T a, [String b = '']) {} is Foo,
'($nameOfT,[String])->void is Foo');
Expect.equals(expectedResult, (T a, [String b = '']) {} is Bar,
'($nameOfT,[String])->void is Bar');
Expect.isFalse(
(T a, [String b = '']) {} is Baz, '($nameOfT,[String])->void is Baz');
// Boz returns a non-nullable int, so a void function is only of that type
// in weak mode.
Expect.equals(expectedBozResult, (T a, [String b = '']) {} is Boz,
'($nameOfT,[String])->void is Boz');
Expect.isFalse(
(T a, {String b = ''}) {} is Foo, '($nameOfT,{b:String})->void is Foo');
Expect.isFalse(
(T a, {String b = ''}) {} is Bar, '($nameOfT,{b:String})->void is Bar');
Expect.equals(expectedResult, (T a, {String b = ''}) {} is Baz,
'($nameOfT,{b:String})->void is Baz');
// Boz returns a non-nullable int, so a void function is only of that type
// in weak mode.
Expect.equals(expectedBozResult, (T a, {String b = ''}) {} is Boz,
'($nameOfT,{b:String})->void is Boz');
}
}
main() {
new C<bool>().test('bool', true, hasUnsoundNullSafety);
new C<int>().test('int', false, false);
new C<dynamic>().test('dynamic', true, hasUnsoundNullSafety);
}