LanguageFeatures/Subtyping/dynamic/generated/right_FutureOr_fail_global_variable_fail_A01_t01.dart

/*
 * Copyright (c) 2018, 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 say that a type T0 is a subtype of a type T1 (written T0 <: T1)
 * when:
 * Right FutureOr: T1 is FutureOr<S1> and
 *   either T0 <: Future<S1>
 *   or T0 <: S1
 *   or T0 is X0 and X0 has bound S0 and S0 <: T1
 *   or T0 is X0 & S0 and S0 <: T1
 * @description Check that if a type T1 is FutureOr<S1> and a type T0 is not
 * a subtype of types Future<S1> or S1, then a type T0 is not a subtype of a
 * type T1.
 * @author ngl@unipro.ru
 */
/**
 * @description Check that if type T0 is not a subtype of a type T1, then
 * instance of T0 cannot be be assigned to the to global variable of type T1
 * @author sgrekhov@unipro.ru
 */
/*
 * This test is generated from right_FutureOr_fail_A01.dart and 
 * global_variable_fail_x01.dart.
 * Don't modify it. If you want to change this file, change one of the files 
 * above and then run generator.dart to regenerate the tests.
 */


import '../../utils/common.dart';
import '../../../../Utils/expect.dart';

import "dart:async";

class S1 {}
class T0 {}

T0 t0Instance = new T0();
FutureOr<S1> t1Instance = new Future.value(new S1());




class GlobalVariableTest {
  GlobalVariableTest() {
    t1Instance = forgetType(t0Instance);
  }

  GlobalVariableTest.valid() {}

  foo() {
    t1Instance = forgetType(t0Instance);
  }

  static test() {
    t1Instance = forgetType(t0Instance);
  }
}

main() {
  bar () {
    t1Instance = forgetType(t0Instance);
  }

  Expect.throws(() {
    t1Instance = forgetType(t0Instance);
  }, (e) => e is TypeError);

  Expect.throws(() {
    bar();
  }, (e) => e is TypeError);

  Expect.throws(() {
    new GlobalVariableTest();
  }, (e) => e is TypeError);

  Expect.throws(() {
    new GlobalVariableTest.valid().foo();
  }, (e) => e is TypeError);

  Expect.throws(() {
    GlobalVariableTest.test();
  }, (e) => e is TypeError);
}