| // TODO(multitest): This was automatically migrated from a multitest and may |
| // contain strange or dead code. |
| |
| // @dart = 2.9 |
| |
| // Copyright (c) 2017, 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. |
| |
| // [NNBD non-migrated] Note: This test is specific to legacy mode and |
| // deliberately does not have a counter-part in language/. |
| |
| import "package:expect/expect.dart"; |
| |
| void f(num callback(num x)) {} |
| |
| Object intToObject(int x) => null; |
| Object numToObject(num x) => null; |
| Object objectToObject(Object x) => null; |
| int intToInt(int x) => null; |
| int numToInt(num x) => null; |
| int objectToInt(Object x) => null; |
| num intToNum(int x) => null; |
| num numToNum(num x) => null; |
| num objectToNum(Object x) => null; |
| |
| main() { |
| // Unrelated types (not assignable) |
| |
| |
| |
| // Assignable but fails at runtime. |
| var intToObject2 = intToObject; |
| Expect.throwsTypeError(() => f(intToObject2)); |
| var intToNum2 = intToNum; |
| |
| var numToObject2 = numToObject; |
| |
| |
| // Ok |
| |
| |
| |
| |
| } |