blob: 2e42a255359314afe3a5121c17b269bef0311c89 [file] [log] [blame]
// Copyright (c) 2017, 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.
// Tests that `void` accepts any value and won't throw on non-`null` values.
// The test is set up in a way that `--trust-type-annotations` and type
// propagation must not assume that `void` is `null` either.
import 'package:expect/expect.dart';
class A {
void foo() {
return bar();
void bar() {}
class B extends A {
int bar() => 42;
// Makes the typing cleaner: the return type here is `dynamic` and we are
// guaranteed that there won't be any warnings.
// Dart2js can still infer the type by itself.
callFoo(A a) =>;
main() {
var a = new A();
var b = new B();
// The following line is not throwing, even though `` (inside
// `callFoo`) is supposedly `void`.
Expect.equals(42, callFoo(b));