[ ArgumentList ] vs. @( ArgumentList )

[John Chapman]

> [ ArgumentList ]
>
> Pros:
>     precedent with C#

And Delphi.

> @( ArgumentList )
>
> Pros:
>     looks like existing @attribute syntax
>     no parsing problems
>
> Cons:
>     not as nice looking

@ArgumentList makes me think I'm on Twitter. #joke

Personally, I also like <ArgumentList>. Prior to @property and 
family being introduced, I'd have gone with [ArgumentList]. But 
since @ is the prefix for attributes in D, let's stick with it 
for UDAs.

And as to any clashes between UDAs and possible future built-in 
ones, I'd say the language has first dibs on names and it's up to 
people writing UDAs to avoid using names that sound like language 
constructs.