On Thursday, October 26, 2017 15:09:48 bauss via Digitalmars-d-learn wrote:
> Why is it not allowed to have empty UDAs for classes?
>
> Let's say we have an UDA like this:
> struct Exclude { }
>
> Then we want to put it on a class like:
>
> @Exclude class Foo
> {
> ...
> }
>
> This will fail with the following error:
> Error: type Exclude has no value
>
> But on everything else we can place an empty UDA like that ex. on
> a function:
>
> This is okay:
>
> @Exclude void foo()
> {
> ...
> }
>
> Can someone explain to me why it's not possible with classes?
It worked just fine when I just tried it on my machine - both with dmd
master and with 2.076.1. Are you using an older version of the compiler than
2.076.1? It's possible that there was a bug that was fixed.
- Jonathan M Davis
