LanguageFeatures/Subtyping/dynamic/generated/records_global_variable_A01_t01.dart

// Copyright (c) 2022, 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:
/// A record type A is a subtype of record type B iff they have same shape and
/// the types of all fields of A are subtypes of the corresponding field types
/// of B
///
/// @description Check that if type T0 is a record with the same shape as T1
/// and the type of each field of T0 is a subtype of the corresponding field
/// types of T1 then T0 is a subtype of T1. Check positional fields only
/// @author sgrekhov22@gmail.com
///
/// @description Check that if type T0 is a subtype of a type T1, then instance
/// of T0 can be assigned to the to global variable of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from test_types/records_A01.dart and 
/// test_cases/global_variable_x01.dart. Don't modify it! 
/// If you need to change this test, then change one of the files above and then 
/// run generator/generator.dart to regenerate the tests.

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

// SharedOptions=--enable-experiment=records

(int x, double y, String) t0Instance = (42, 3.14, "");
(num, num z, String?) t1Instance = (0, 0, null);

const t1Default = (0, 0, null);

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

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

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

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

  t1Instance = forgetType(t0Instance);
  bar();
  GlobalVariableTest t = new GlobalVariableTest();
  t.foo();
  GlobalVariableTest.test();
}