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// 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.
/// @assertion We define inherited(J, K) to be
/// the set of members m such that all of the following hold:
/// • m is accessible to K and
/// • A is a direct superinterface of J and either
/// – A declares a member m or
/// – m is a member of inherited(A, K).
/// • m is not overridden by J.
/// ...
/// If some but not all of the mi, 1 ≤ i ≤ k are getters none of the mi are
/// inherited, and a static warning is issued.
/// Otherwise, if the static types T1,...,Tk of the members m1,...,mk are not
/// identical, then there must be a member mx such that Tx <: Ti, 1 ≤ x ≤ k for
/// all i ∈ 1..k, or a static type warning occurs.
/// @description Checks that if all inherited members with the same name are
/// methods and their static types are not identical, but there is a method
/// such that its type is subtype of types of all other methods then, anyway, a
/// compile error occurs. Test methods with parameters
/// @author
abstract class SI1 {
int m1(int v1);
int m2(String v1);
List<int> m3(List<int> v1);
int m4(int v1);
abstract class SI2 {
bool m1(double v1);
double m2(Object v1);
List<String> m3(List<double> v1);
bool m4(int v1);
abstract class SI3 {
Object m1(num v1); // subtype of m1() in SI1 and SI2
num m2(Object v1); // subtype of m2() in SI1 and SI2
List m3(List v1); // subtype of m3() in SI1 and SI2
m4(num v1); // subtype of m4() in SI1 and SI2
abstract class I implements SI1, SI2, SI3 {
// ^
// [analyzer] unspecified
// [cfe] unspecified
main() {
I? i = null;