Language/Expressions/Function_Expressions/static_type_form_2_async_t01.dart

// 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.

// @dart = 2.9

/// @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 => e is
/// (T1,...,Tn, {Tn+1 xn+1,...,Tn+k xn+k }) -> Future<flatten(T0)>, where T0 is
/// the static type of e.
/// 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 static type of function literal of the form
/// (T1 a1,...,Tn an, {Tn+1 xn+1: d1,...,Tn+k xn+k: dk}) async => e is
/// (T1,...,Tn, {Tn+1 xn+1,...,Tn+k xn+k}) -> Future<flatten(T0)>.
/// @author ngl@unipro.ru

import 'dart:async';

typedef Future<bool> boolFuncParam(bool p1, {bool p2});
typedef Future<Object> objBoolFuncParam(bool p1, {bool p2});
typedef Future<List> listFuncParam({Map m});
typedef Future<Object> objListFuncParam({Map m});

main() {
  boolFuncParam bfp = (bool p1, {bool p2}) async => false;
  objBoolFuncParam ofp = (bool p1, {bool p2: false}) async => true;

  listFuncParam lfp = ({Map m: const {}}) async => [m];
  objListFuncParam olfp = ({Map m}) async => [[m]];
}