TypeSystem/subtyping/static/generated/extension_type_arguments_binding_A03_t01.dart

// Copyright (c) 2023, 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:
/// Assume that T1, .. Ts are types, and V resolves to an extension type
/// declaration of the following form:
///
/// extension type V<X1 extends B1, .. Xs extends Bs>(T id) ... {
///   ... // Members.
/// }
/// It is then allowed to use V<T1, .. Tk> as a type.
///
/// @description Check that if type `T0` is an extension type `V` with nullable
/// representation type then it is subtype of `Object?`
/// @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 an argument of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from test_types/extension_type_A03.dart and
/// test_cases/arguments_binding_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.

extension type const V<T>(T id) {}

V<int?> t0Instance = V<int?>(42);

const t1Default = const Object();

namedArgumentsFunc1(Object? t1, {Object? t2 = t1Default}) {}
positionalArgumentsFunc1(Object? t1, [Object? t2 = t1Default]) {}

namedArgumentsFunc2<X>(X t1, {required X t2}) {}

class ArgumentsBindingClass {
  ArgumentsBindingClass(Object? t1) {}

  ArgumentsBindingClass.named(Object? t1, {Object? t2 = t1Default}) {}
  ArgumentsBindingClass.positional(Object? t1, [Object? t2 = t1Default]) {}

  factory ArgumentsBindingClass.fNamed(Object? t1, {Object? t2 = t1Default}) {
    return new ArgumentsBindingClass.named(t1, t2: t2);
  }
  factory ArgumentsBindingClass.fPositional(Object? t1, [Object? t2 = t1Default]) {
    return new ArgumentsBindingClass.positional(t1, t2);
  }

  static namedArgumentsStaticMethod(Object? t1, {Object? t2 = t1Default}) {}
  static positionalArgumentsStaticMethod(Object? t1, [Object? t2 = t1Default]) {}

  namedArgumentsMethod(Object? t1, {Object? t2 = t1Default}) {}
  positionalArgumentsMethod(Object? t1, [Object? t2 = t1Default]) {}

  set testSetter(Object? val) {}
}

class ArgumentsBindingGen<X>  {
  ArgumentsBindingGen(X t1) {}

  ArgumentsBindingGen.named(X t1, {required X t2}) {}

  factory ArgumentsBindingGen.fNamed(X t1, {required X t2}) {
    return new ArgumentsBindingGen.named(t1, t2: t2);
  }

  namedArgumentsMethod(X t1, {required X t2}) {}

  set testSetter(X val) {}
}

main() {
  // test functions
  namedArgumentsFunc1(t0Instance, t2: t0Instance);
  positionalArgumentsFunc1(t0Instance, t0Instance);

  // test class constructors
  ArgumentsBindingClass instance1 = new ArgumentsBindingClass(t0Instance);
  instance1 = new ArgumentsBindingClass.fNamed(t0Instance, t2: t0Instance);
  instance1 = new ArgumentsBindingClass.fPositional(t0Instance, t0Instance);
  instance1 = new ArgumentsBindingClass.named(t0Instance, t2: t0Instance);
  instance1 = new ArgumentsBindingClass.positional(t0Instance, t0Instance);

  // tests methods and setters
  instance1.namedArgumentsMethod(t0Instance, t2: t0Instance);
  instance1.positionalArgumentsMethod(t0Instance, t0Instance);
  instance1.testSetter = t0Instance;

  // test static methods
  ArgumentsBindingClass.namedArgumentsStaticMethod(t0Instance, t2: t0Instance);
  ArgumentsBindingClass.positionalArgumentsStaticMethod(t0Instance, t0Instance);

  // Test type parameters

  // test generic functions
  namedArgumentsFunc2<Object?>(t0Instance, t2: t0Instance);

  // test generic class constructors
  ArgumentsBindingGen<Object?> instance2 = new ArgumentsBindingGen<Object?>(t0Instance);
  instance2 = new ArgumentsBindingGen<Object?>.fNamed(t0Instance, t2: t0Instance);
  instance2 = new ArgumentsBindingGen<Object?>.named(t0Instance, t2: t0Instance);

  // test generic class methods and setters
  instance2.namedArgumentsMethod(t0Instance, t2: t0Instance);
  instance2.testSetter = t0Instance;
}