>When you say "can't use load-time weaving to support perthis(Object).", I >understand it to mean : perthis for a pointcut which evaluates _this_ > specifically to java.lang.Object, and not: >perthis for a pointcut which evaluates _this_ to any Java object. Yes, I did mean the instantiation for perthis(Object)
>I think in the referenced Implementation Notes, "perthis(Object)" was used >in the second sense above - that is, Object being any Java object. >Is my understanding correct? In the referenced implementation notes it meant perthis(Object) in the same sense, i.e., to match any Object generically. As such, it's normal to use perthis(SomeType) where SomeType is some more specific type that you are weaving into. I wanted to clarify that load-time weaving won't allow you to use a blanket perthis(Object) to match all objects... HTH, Ron ----- Original Message ---- From: Ron Bodkin <[EMAIL PROTECTED]> To: [email protected] Sent: Tuesday, September 26, 2006 1:47:34 PM Subject: RE: [aspectj-users] Requesting more info on Implementation Notes aboutperthis (compile-time vs. load-time weaving) To add to Wes' answer, it's important to note that AspectJ load-time weaving doesn't support weaving into the bootstrap loader, even when use a Java agent like Java 5's java agent. Weaving into the bootstrap loader would raise a number of issues), so you can't use load-time weaving to support perthis(Object). There has been some discussion of the issues involved in the Eclipse bugzilla bug #149261 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of G Balaji Sent: Tuesday, September 26, 2006 7:10 AM To: [email protected] Subject: [aspectj-users] Requesting more info on Implementation Notes aboutperthis (compile-time vs. load-time weaving) Dear AspectJ Experts, >From the AspectJ's programming guide's implementation notes [found at http://www.eclipse.org/aspectj/doc/released/progguide/implementation.html ] : "Aspects that are defined perthis or pertarget also have restrictions based on control of the code. In particular, at a join point where the bytecode for the currently executing object is not available, an aspect defined perthis of that join point will not be associated. So aspects defined perthis(Object) will not create aspect instances for every object unless Object is part of the compile. Similar restrictions apply to pertarget aspects. " In the context of the above statement, if we examine the following statement-fragment: "..aspects defined perthis(Object) will not create aspect instances for every object unless Object is part of the compile..". how is this statement affected when load-time weaving is used instead of (or, in addition to) compile-time weaving? Thanks, G Balaji. _______________________________________________ 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 _______________________________________________ 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
