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?
