I think we should do some minimal level of analysis for constants.
Raised as: https://bugs.eclipse.org/bugs/show_bug.cgi?id=266165

Andy.

2009/2/25 Neale Upstone <[email protected]>

> Thanks Bruno, that's working perfectly.
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On Behalf Of Bruno
> > De Fraine
> > Sent: 25 February 2009 12:01
> > To: [email protected]
> > Subject: Re: [aspectj-users] if(ENABLED) causes weave for constant
> >
> > On 25 Feb 2009, at 11:45, Neale Upstone wrote:
> >
> > > For some development/debugging aspects, I want to be able
> > to switch
> > > them
> > > on and off and cause the weaver to ignore them.
> >
> > You can try the following:
> >
> > pointcut fail();
> > pointcut isEnabled(): !fail();  // Remove "!" to disable
> >
> > before() : publicCalls() && isEnabled()
> > {
> > ...
> > }
> >
> > >> From a weaving efficiency point of view, wouldn't it be better to
> > >> detect
> > > that if() has been passed a constant and for the pointcut
> > > "publicCalls()
> > > && if(ENABLED)" to apply to no joinpoints?
> >
> >
> > Unlike Java, it seems that AspectJ delays all if-tests until
> > runtime.
> > However, I believe the research on SCoPE uses partial evaluation
> > techniques to optimize this and many other if-tests, see:
> > http://portal.acm.org/citation.cfm?id=1218582
> >
> > Best regards,
> > Bruno
> >
> > --
> > Bruno De Fraine
> > Vrije Universiteit Brussel
> > Faculty of Applied Sciences, DINF - SSEL
> > Room 4K208, Pleinlaan 2, B-1050 Brussels
> > tel: +32 (0)2 629 29 75
> > fax: +32 (0)2 629 28 70
> > e-mail: [email protected]
> >
> >
> > _______________________________________________
> > aspectj-users mailing list
> > [email protected]
> > https://dev.eclipse.org/mailman/listinfo/aspectj-users
> >
> **********************************************************************
> IMPORTANT NOTICE.
> Confidentiality:  This e-mail and its attachments are intended for the
> above named only and may be confidential.  If they have come to you in error
> you must take no action based on them, nor must you copy or show them to
> anyone; please reply to this e-mail and highlight the error.
> Security Warning:  Please note that this e-mail has been created in the
> knowledge that Internet e-mail is not a 100% secure communications medium.
> We advise that you understand and observe this lack of security when
> e-mailing us.
> Viruses:  Although we have taken steps to ensure that this e-mail and
> attachments are free from any virus, we advise that in keeping with good
> computing practice the recipient should ensure they are actually virus free.
> Monitoring and Scanning:  Cambridge Cognition has monitoring and scanning
> systems in place in relation to emails sent and received to: monitor /
> record business communications; prevent and detect crime; investigate the
> use of the Company's internal and external email system; and provide
> evidence of compliance with business practices.
>
> Cambridge Cognition Limited
> Company Registration Number 4338746
> Registered address:
> Tunbridge Court
> Tunbridge Lane
> Bottisham
> Cambridge
> CB25 9TU
> UK
> **********************************************************************
>
> _______________________________________________
> aspectj-users mailing list
> [email protected]
> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>
_______________________________________________
aspectj-users mailing list
[email protected]
https://dev.eclipse.org/mailman/listinfo/aspectj-users

Reply via email to