Files
sdk/tests/language/regress/regress30516_test.dart
T
Robert Nystrom 67539c2faf Migrate language_2/regress to NNBD.
Change-Id: I318742cd4303d70c0625c9efd98bb01087aa5de4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150466
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
2020-06-13 01:00:22 +00:00

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509 B
Dart

// Copyright (c) 2018, 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.
typedef void RecognizerCallback<T>();
typedef void GestureTapCancelCallback();
GestureTapCancelCallback? onTapCancel;
T? invokeCallback<T>(String name, RecognizerCallback<T>? callback,
{String debugReport()?}) {}
main() {
invokeCallback<void>('spontaneous onTapCancel', onTapCancel);
}