Custom attributes (again)

[Jacob Carlborg]

On 2012-04-05 19:35, Walter Bright wrote:
> On 4/5/2012 5:00 AM, Manu wrote:
>> C# and Java both have attributes, following these established design
>> patterns, I
>> don't think there should be any mystery over how they should be
>> implemented.
>
> At the Lang.NEXT conference over the last 3 days, I was able to talk to
> many smart people about attributes. But I did find some confusion - are
> they best attached to the variable/function (i.e. "storage class"), or
> attached to the type ("type constructor")? I think the former. Attaching
> it to the type leads to all sorts of semantic issues.
>
>  From your list of uses, it looks like attaching it to the variable or
> function is an apropos solution.

If I recall correctly, both Java annotations and C# attributes let you 
specify with a fine grained control on what the attributes are attached to.

@foo FooBar bar () {}

For example, is "@foo" attached to "FooBar" or "bar". Java uses the 
@Target annotation to specify this.

-- 
/Jacob Carlborg