blob: 73812989129a558c5d80a3825c1b35ac85e99819 [file] [log] [blame]
/*
* 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 A type T is more specific than a type S, written T << S, if T is ⊥.
* << is a partial order on types. T is a subtype of S, written T <: S, iff [⊥/Dynamic]T << S.
* A type T may be assigned to a type S, written T <=> S, if either T <: S or S <: T.
* @description Checks that dynamic is subtype of any type (dynamic <: S, because Null << S)
* @note Checking indirectly cause there is no object has runtime type dynamic. Check that
* List<dynamic> is subtype of List<any type>.
* @author ilya
*/
import "../../Utils/expect.dart";
main() {
Expect.isTrue([1, null, 'string'] is List<double>);
Expect.isTrue([1, null, 'string'] is List<String>);
Expect.isTrue([1, null, 'string'] is List<List>);
}