User Defined Attributes

[deadalnix]

Le 13/11/2012 23:27, Walter Bright a écrit :
> On 11/10/2012 12:21 PM, deadalnix wrote:
>> Thinking of it this way don't make any sense. The whole point of an
>> attribute is
>> to tell a library about how to understand your code.
>>
>> If many library uses the same attribute, then it defeat the whole
>> point of
>> having attribute. This is why the discussion about disallowing any
>> type as UDA
>> exists in the first place.
>
> I understand that. I just am not convinced of the scope of this issue,
> and I am not convinced that a runtime attribute system is that
> applicable for this case, nor am I convinced that exception handling is
> that applicable (all for reasons already explained).
>

I presented you compile time uses cases for such a mecanism already. See 
project lombok for instance.

> For another analogy, consider the type "int". Different modules impute
> different meanings into it all the time, and it doesn't cause terrible
> compatibility problems between modules.

int isn't meant to be discovered. The whole point of attribute is to be 
discovered.