| // Copyright (c) 2021, 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 variable x is promotable via initialization given |
| * variable model VM if x is a local variable (not a formal parameter) and: |
| * |
| * VM = VariableModel(declared, promoted, tested, assigned, unassigned, |
| * captured) |
| * and captured is false |
| * and promoted is empty |
| * and x is declared with no explicit type and no initializer |
| * and assigned is false and unassigned is true |
| * |
| * @description Checks that a variable is promotable to the type T if all |
| * requirements above are met. |
| * |
| * @author sgrekhov@unipro.ru |
| * @issue 41669 |
| */ |
| // Requirements=nnbd-weak |
| import "../../../../Utils/expect.dart"; |
| |
| class T { |
| int foo() => 42; |
| } |
| |
| main() { |
| var x; |
| x = new T(); |
| x.foo(); |
| Expect.throws(() {x.bar();}, (e) => e is NoSuchMethodError); // Check that x is dynamic |
| } |
