LanguageFeatures/Extension-types/static_analysis_extension_types_A16_t02.dart

// Copyright (c) 2023, 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 If e is an expression whose static type V is the extension type
/// Name<T1, .. Ts> and V has no member whose basename is the basename of m, a
/// member access like e.m(args) may be an extension member access, following
/// the normal rules about applicability and accessibility of extensions, in
/// particular that V must match the on-type of the extension
///
/// @description Checks that it is a compile-time error if `V` has no member
/// with name `m` and there is no extension member with the name `m`
/// @author sgrekhov22@gmail.com

extension Ex1 on V {
  String foo() => "Ex1.foo()";
}

extension Ex2 on int {
  String bar() => "Ex2.bar()";
}

extension type V(int id) {}

main() {
  V v = V(42);
  v.bar();
//  ^^^
// [analyzer] unspecified
// [cfe] unspecified

  v.id.foo();
//     ^^^
// [analyzer] unspecified
// [cfe] unspecified
}