Not able to filter status messages in a Vim9 script using :filter

[Yegappan Lakshmanan]

Hi,

Before patch 8.2.1832, exceptions from readdireex() cannot be caught.

When readdirex() fails to read a directory, it emits a status message.

If there are multiple unreadable directories, then multiple messages

are displayed. I am trying to filter these messages using the ":filter"

command.

In a Vim9 script, I am not able to filter the status message:

============

vim9script
var l: list<dict<any>>
:filter /abc/ l = readdirex('non-existing-dir')

echo l

============

The above code snippet displays the "E476: Invalid command:" error.

In a Vim8 script, i am able to filter the status message:

============

filter /abc/ let l = readdirex('non-existing-dir')
echo l

============

- Yegappan