LanguageFeatures/Subtyping/static/generated/records_return_value_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 used as a return value of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from test_types/records_A01.dart and 
/// test_cases/return_value_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.

// 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);

(num, num, String?) returnValueFunc() => t0Instance;

class ReturnValueTest {
  static (num, num, String?) staticTestMethod() => t0Instance;

  (num, num, String?) testMethod() => t0Instance;

  (num, num, String?) get testGetter => t0Instance;
}

main() {
  (num, num, String?) returnValueLocalFunc() => t0Instance;

  returnValueFunc();
  returnValueLocalFunc();

  ReturnValueTest.staticTestMethod();

  new ReturnValueTest().testMethod();
  new ReturnValueTest().testGetter;
}