LanguageFeatures/Extension-methods/semantics_of_invocations_t05.dart

// Copyright (c) 2019, 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

/// @assertion If an extension is found to be the one applying to a member
/// invocation, then at run-time, the invocation will perform a method invocation
/// of the corresponding instance member of the extension, with [this] bound to
/// the receiver value and type parameters bound to the types found by static
/// inference.
/// @description Check that type parameters bounds to the types found by static
/// inference if extended class has several type parameters.
/// @author iarkh@unipro.ru

import "../../Utils/expect.dart";

class A<T1, T2, T3> {}

extension ExtendedA<T1, T2, T3> on A<T1, T2, T3> {
  void test(dynamic expected1, expected2, expected3) {
    Expect.equals(expected1, T1);
    Expect.equals(expected2, T2);
    Expect.equals(expected3, T3);
  }
}

main() {
  var a = A<int, String, num>();
  a.test(int, String, num);
}