LanguageFeatures/nnbd/static_errors_A01_t01.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.
 */
/**
 * @assertion It is an error to call a method, setter, getter or operator on
 * an expression whose type is potentially nullable and not dynamic, except for
 * the methods, setters, getters, and operators on Object.
 *
 * @description Check that it is a compile-time error to call a method, setter,
 * getter or operator on an expression whose type is potentially nullable.
 * @author sgrekhov@unipro.ru
 */
// SharedOptions=--enable-experiment=non-nullable

class A {
  String m = "";
  void foo() {}
  int get g => 1;
  void set s(int i) {}
  A operator+(A other) => other;
}

class C<X extends A?> {
  X x;
  C(this.x);

  test() {
    x.m;              //# 01: compile-time error
    x.foo();          //# 02: compile-time error
    x.g;              //# 03: compile-time error
    x.s = 2;          //# 04: compile-time error
    x + x;            //# 05: compile-time error
  }
}

main() {
  A? a = new A();
  C<A?> c = new C<A?>(a);
  c.test();
}