Thanks Andy.
As always, the turnaround time of features and improvements is just...
amazing!
________________________________
From: [email protected]
[mailto:[email protected]] On Behalf Of Andy Clement
Sent: 25 February 2009 20:17
To: [email protected]
Subject: Re: [aspectj-users] if(ENABLED) causes weave for
constant
Done, will be in next dev build.
Now for:
final static boolean enabled = false;
pointcut p(): .... && if(enabled);
there will be nothing woven.
And as a lucky bonus, for:
final static boolean enabled = true;
pointcut p(): ... && if (enabled);
It will not bother to call the if() method - and if the rest of
the pointcut can be evaluated statically then the whole thing will be
evaluated statically and there will be no runtime test.
cheers,
Andy.
2009/2/25 Andy Clement <[email protected]>
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
>
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