FileException Inconsistency?

[Nick Treleaven]

On Monday, 11 May 2026 at 04:18:33 UTC, Alex wrote:
> Hi,
>
> After too many years of thinking to try D, I'm creating a 
> simple directory scanner.  However, I'm already getting some 
> "inconistencies" in Exception handling I'm confused by and 
> trying to debug.
>
> I'm using Visual D on Windows. DMD 2.110
>
> In the code below, if I leave the writeln(entry.name) or even 
> just writeln(".") uncommented, then I get a FileException for 
> permission-denied directories as expected.
>
> If I comment these lines out, e.g. to add the entry.name to an 
> array, instead I get a Throwable std.file.FileException which 
> is not caught as a FileException or Exception.
>
> Is this expected?  How to best handle this?

I don't think commenting those lines should affect anything, but 
I'm testing on Linux which may be different.

>     foreach (DirEntry entry; dirEntries(path, SpanMode.shallow))

`dirEntries` itself can throw:

> Throws: FileException if the path directory does not exist or 
> read permission is denied.

So you need to wrap the `dirEntries` call in try/catch too for 
when a subdirectory can't be read.