| /* |
| * Copyright (c) 2019, 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 To infer the type of element: |
| * ... |
| * If element is a spreadElement with expression e1: |
| * |
| * If P is ? then let S be the inferred type of e1 in context ?: |
| * ... |
| * If none of these cases match, it is an error. |
| * |
| * @description Checks that it is a compile error if none of the cases |
| * (`Iterable<Object>` nor of `Map<Object, Object>`, and it's also not `dynamic` |
| * nor `Null`) match |
| * @compile-error |
| * @author sgrekhov@unipro.ru |
| */ |
| |
| Map<X, Y> foo<X, Y>(Map<X, Y> m) => m; |
| |
| void test<T>(T t) { |
| foo({...?t}); |
| } |
| |
| main() { |
| test<Null>(null); |
| } |
