blob: b740d58894964a52695cc0c2936aa097ed23a97a [file] [log] [blame]
// 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.
// @dart = 2.9
// This test exercises a corner case of override checking that is safe from a
// soundness perspective, but which we haven't decided whether or not to allow
// from a usability perspective.
class A {
void foo() {}
}
abstract class B extends A {
// If this class were concrete, there would be a problem, since `new
// B().foo(42)` would be statically allowed, but would lead to invalid
// arguments being passed to A.foo. But since the class is abstract, there is
// no problem.
void foo([x]);
}
class C extends B {
void foo([x]) {
super.foo();
}
}
void f(B b) {
b.foo(42);
}
main() {
f(new C());
}