Re: [aspectj-users] Pointcut that includes only interfaces

[Andrew Eisenberg <andrew@xxxxxxxxxxxx>]

OK...this means two things:
1. this is an AJDT bug because AJDT thinks "extends" means extends and
"implements" means implements.
2. What Johan is trying to do is not currently possible.

I'll raise a bug for #1.

On Mon, Apr 27, 2009 at 9:00 AM, Andy Clement <andrew.clement@xxxxxxxxx> wrote:
> extends/implements are interchangeable and are only syntax sugar -
> they don't express any kind of constraint about the match.
>
> And.
>
> 2009/4/27 Andrew Eisenberg <andrew@xxxxxxxxxxxx>:
>> Hmmm....that almost sounds like a bug, but don't know if this is an
>> AspectJ bug, or an AJDT bug.
>>
>> Given this:
>>
>> package p;
>>
>> public aspect Aspect {
>>        interface I1 {}
>>        declare parents : p..* extends I1;
>> }
>>
>> package p;
>> public interface Interface { }
>>
>> package p;
>> public class AClass { }
>>
>>
>> I would hve expected that the compiler looks at the "extends" of
>> declare parents and sees that the target is an interface.  So, the
>> "extends" should only apply to other interfaces.  If it were
>> "implements" then would only apply to classes.
>>
>> However, AspectJ applies the declare parents to the class, the
>> interface, *and* the aspect.
>>
>> And, AJDT incorrectly applies the "extends" clause to the class.  The
>> creates a spurious error in the editor because AJDT assumes that
>> AClass "extends" I1 (but should really be "implements").
>>
>> Johan, until we figure out what *should* be happening here, and
>> potentially fix the compiler bug (if we determine that this behavior
>> is incorrect), then there is no way that I know of to address your
>> problem.
>>
>> --a
>>
>> On Mon, Apr 27, 2009 at 5:18 AM, Johan Haleby <haleby@xxxxxxxxx> wrote:
>>> Hi,
>>>
>>> I'd like to create a simple aspect that adds an interface to other
>>> interfaces in a specific package. Right now my pointcut looks like:
>>> declare parents: x.y.z..* extends MyInterface;
>>>
>>> My question is, how to I include only interfaces in the pointcut? I.e. no
>>> concrete (or abstract) classes.
>>>
>>> /Johan
>>> _______________________________________________
>>> aspectj-users mailing list
>>> aspectj-users@xxxxxxxxxxx
>>> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>>>
>>>
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