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// 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 Similarly, [params] is almost exactly the same parameter list
/// as the constructor [], with the one exception that initializing
/// formals are represented by normal parameters with the same name and type.
/// All remaining properties of the parameters are the same as for the
/// corresponding constructor parameter, including any default values, and
/// [args] is an argument list passing those parameters to [] directly as
/// they are received.
/// @description Checks that [params] is exactly the same parameter list - test
/// required named parameter.
/// @author
// SharedOptions=--enable-experiment=constructor-tearoffs
import "../../Utils/expect.dart";
class C {
int? ii;
C.constr({required int i}) {
ii = i;
dynamic d = 1.1;
main() {
var v = C.constr;
Expect.isTrue(v is C Function({ required int i }));
Expect.runtimeIsType<C Function({ required int i })>(v);
C c1 = v(i: 1);
Expect.equals(1, c1.ii);
Expect.throws(() { v(i: d); });
Expect.throws(() { v(i: "42" as dynamic); });