dart-sdk/tests/language/function_subtype/call0_test.dart
Robert Nystrom b955271e51 Migrate language_2/function_subtype to NNBD.
Change-Id: I8d41ad649c83cd97253006693a0cf3676de418e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145542
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
2020-05-05 16:52:30 +00:00

61 lines
1.9 KiB
Dart

// 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 classes with call functions.
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 void Boz(bool a);
class C1 {
void call(bool a, [String b = '']) {}
}
class C2 {
void call(bool a, {String b = ''}) {}
}
class C3 {
void call(bool a, {int b = -1}) {}
}
main() {
Function c1 = new C1(); // implicit tearoff of `call`
Expect.isTrue(c1 is Foo, 'c1 is Foo');
Expect.isTrue(c1 is Bar, 'c1 is Bar');
Expect.isFalse(c1 is Baz, 'c1 is Baz');
Expect.isTrue(c1 is Boz, 'c1 is Boz');
Expect.isFalse(c1 is C1, 'c1 is C1');
Function c2 = new C2(); // implicit tearoff of `call`
Expect.isFalse(c2 is Foo, 'c2 is Foo');
Expect.isFalse(c2 is Bar, 'c2 is Bar');
Expect.isTrue(c2 is Baz, 'c2 is Baz');
Expect.isTrue(c2 is Boz, 'c2 is Boz');
Expect.isFalse(c2 is C2, 'c2 is C2');
Function c3 = new C3(); // implicit tearoff of `call`
Expect.isFalse(c3 is Foo, 'c3 is Foo');
Expect.isFalse(c3 is Bar, 'c3 is Bar');
Expect.isFalse(c3 is Baz, 'c3 is Baz');
Expect.isTrue(c3 is Boz, 'c3 is Boz');
Expect.isFalse(c3 is C3, 'c3 is C3');
expectIsNotFunction(new C1());
expectIsNotFunction(new C2());
expectIsNotFunction(new C3());
}
expectIsNotFunction(Object obj) {
Expect.isFalse(obj is Function, '$obj should not be a Function');
Expect.isFalse(obj is Foo, '$obj should not be a Foo');
Expect.isFalse(obj is Bar, '$obj should not be a Bar');
Expect.isFalse(obj is Baz, '$obj should not be a Baz');
Expect.isFalse(obj is Boz, '$obj should not be a Boz');
}