| // 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 a function literal of the form |
| /// (T1 a1,...,Tn an, [Tn+1 xn+1 = d1,...,Tn+k xn+k = dk]) async* {s} is |
| /// (T1,...,Tn, [Tn+1 xn+1,...,Tn+k xn+k]) -> Stream. |
| /// In any case where Ti, 1 <= i <= n + k, is not specified, it is considered |
| /// to have been specified as dynamic. |
| /// @description Checks that the function literal of the form |
| /// (T1 a1,...,Tn an, [Tn+1 xn+1 = d1,...,Tn+k xn+k = dk]) async* {s} may be |
| /// assigned to function type variables with Stream return type and |
| /// corresponding parameter types. |
| /// @author ngl@unipro.ru |
| |
| |
| import 'dart:async'; |
| |
| typedef Stream streamFunc(); |
| typedef Stream streamFuncParam(int p1, [bool p2]); |
| |
| main() { |
| streamFunc sf1 = () async* {}; |
| streamFuncParam sfp1 = (int p1, [bool? p2]) async* {}; |
| } |