blob: 747d5f88a7ee2506f411145eef4489298bedfff8 [file] [log] [blame]
// 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.
// @dart = 2.7
// dart2jsOptions=--experiment-new-rti
// Test that some closures are 'is Function'.
import "package:expect/expect.dart";
confuse(x) => x;
main() {
// static tear-off.
Expect.isTrue(confuse(main) is Function);
// instance tear-off.
Expect.isTrue(confuse([].add) is Function);
// function expression.
Expect.isTrue(confuse(() => 1) is Function);
// local function.
int add1(int x) => x;
Expect.isTrue(confuse(add1) is Function);
Expect.isFalse(confuse(null) is Function);
Expect.isFalse(confuse(1) is Function);