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Re: [aspectj-users] if(ENABLED) causes weave for constant
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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: Bruno.De.Fraine@xxxxxxxxx
