pkg/front_end/testcases/runtime_checks/covariant_generic_method_type_parameter.dart

// Copyright (c) 2017, 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.

/*@testedFeatures=checks*/
library test;

class C<T> {
  void f< /*@checkFormal=semiSafe*/ U extends T>(U x) {}
  void g1< /*@checkFormal=semiSafe*/ U extends T>() {
    this.f<U>(1.5);
  }
}

void g2(C<Object> c) {
  c.f<num> /*@checkCall=interface(semiTyped:<0>)*/ (1.5);
}

void test() {
  new C<int>().g1<num> /*@checkCall=interface(semiTyped:<0>)*/ ();
  g2(new C<int>()); // runtime error
}

void main() {}