Language/Expressions/Null/static_type_t01.dart

// Copyright (c) 2011, 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 The static type of null is ⊥.
 * The decision to use ⊥ instead of Null allows null to be be assigned
 * everywhere without complaint by the static checker.
 * @description Checks that null is assignable to any nullable type without
 * static type warnings.
 * @static-clean
 * @author hlodvig
 */

class A {}

typedef F();

main() {
  var v = null;
  int? i = null;
  String? s = null;
  A? a = null;
  Object? o = null;
  F? f = null;
  List<List>? l = null;
}