Bug: Directory.watch() emits incorrect isDirectory

[IrisDAnte]

I've encountered a bug with the Directory.watch() function in Dart on Linux and Windows. When a directory is deleted, the function does emit a delete event as expected. However, the event.isDirectory property incorrectly returns false.

Steps to Reproduce

Here's a simple Dart program that reproduces the issue:

import 'dart:io';

main() {
  Directory('./').watch().listen((event) {
    print([event.type, event.isDirectory]);
  });
}

When you run this program and delete a directory in the current working directory, the console output indicates that event.isDirectory is false, which is not the expected behavior.

Expected Behavior

When a directory is deleted, I expect the event.isDirectory property of the delete event to be true.

Actual Behavior

The event.isDirectory property of the delete event is false when a directory is deleted.

Environment

Dart SDK Version: 3.3.0 (stable)
Operating System and version: Ubuntu 22.04.3 LTS, Windows 11 22H2

[brianquinlan]

This is working working as intended - isDirectory is always false for FileSystemDeleteEvent. I have a PR in progress to clarify this:

https://dart-review.googlesource.com/c/sdk/+/357663