Re: [aspectj-users] Understanding generic types in args(..) construction

["Andy Clement" <andrew.clement@xxxxxxxxx>]

Try it with the dev build from yesterday that includes the latest set of 253109 fixes

2008/11/3 Fernando Rubbo <fernando.rubbo@xxxxxxxxx>

I think we have a similar issue with the around's return. Look it out.

public class B {
    List<Number> m(){ return null;}
}

aspect AB{
    List<Integer> around() : execution(List<*> B.*(..)) {
        return proceed();
    }
}

List<Integer> is not subtype of List<Number>.

Fernando Rubbo

On Mon, Nov 3, 2008 at 9:08 PM, Fernando Rubbo <fernando.rubbo@xxxxxxxxx> wrote:

On 2-nov-08, at 02:27, Fernando Rubbo wrote:

There exists a formal description saying how args(..) and after(..) returning (..) must works?

The best description is probably:
http://www.eclipse.org/aspectj/doc/released/adk15notebook/generics-inAspectJ5.html#d0e2512

That is quite old, but is currently the best we have written down.  Anyone wishing to help us update the doc, please let me know.

If it will gonna respect Java subtyping it is simple to document. We just need to put a note informing that and a reference for Java spec  (The Java Language Specification Third Edition) chapter 4.10 - Subtyping.

Fernando Rubbo

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