| // 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. |
| /// ... |
| /// 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. The member that is inherited |
| /// is mx, if it exists; otherwise: let numberOf P ositionals(f) denote the |
| /// number of positional parameters of a function f, and let numberOf |
| /// RequiredParams(f) denote the number of required parameters of a function f. |
| /// Furthermore, let s denote the set of all named parameters of the m1,...,mk. |
| /// Then let |
| /// h = max(numberOf Positionals(mi)), |
| /// r = min(numberOf RequiredParams(mi)), i ∈ 1..k. |
| /// Then I has a method named n, with r required parameters of type dynamic, |
| /// h positional parameters of type dynamic, named parameters s of type dynamic |
| /// and return type dynamic. |
| /// @description Checks that there's a compile-error if two members with the same |
| /// name but different number of arguments are inherited |
| /// @author rodionov |
| |
| |
| abstract class SI1 { |
| void foo(var v); |
| } |
| |
| abstract class SI2 { |
| void foo(var v, var vv); |
| } |
| |
| abstract class I implements SI1, SI2 {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() { |
| I? i = null; |
| } |
