Changes to User-Defined Attributes syntax

[user1234]

On Tuesday, 19 November 2024 at 04:26:17 UTC, Andrey Zherikov 
wrote:
> ## Recap
>
> Current syntax (from [lang 
> ref](https://dlang.org/spec/attribute.html#uda)):
> ```
> UserDefinedAttribute:
>     @ ( TemplateArgumentList )
>     @ TemplateSingleArgument
>     @ Identifier ( NamedArgumentList[opt] )
>     @ TemplateInstance
>     @ TemplateInstance ( NamedArgumentList[opt] )
>
> [...]

Yes, I noticed a long time ago that you can declare

```d
alias F = float;
@F int i;
```

but not

```d
@float int i;
```

which proposal #2 would address.