blob: fedd206fdf96e86869265dd5cc8b653a23da9dda [file] [log] [blame]
// Copyright (c) 2020, 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.
/// @assertion An abstract instance variable declaration D is treated as an
/// abstract getter declaration and possibly an abstract setter declaration. The
/// setter is included if and only if D is non-final. The return type of the
/// getter and the parameter type of the setter, if present, is the type of D
/// (which may be declared explicitly, obtained by override inference, or
/// defaulted to dynamic). The parameter of the setter, if present, has the
/// modifier covariant if and only if D has the modifier covariant
/// @description Checks that declaration
/// abstract covariant num cn;
/// desugared as
/// num get cn;
/// void set cn(covariant num _);
/// @author
import "../../Utils/expect.dart";
abstract class A {
abstract covariant num cn;
class C1 extends A {
num get cn => 3.14;
void set cn(num _) {}
class C2 extends C1 {
// Without covariant keyword in class A overrides below are not valid
int get cn => 42;
void set cn(int _) {}
main() {
C2 c2 = new C2();