2016-04-26 15:07 GMT+02:00 Esteban Lorenzano <esteba...@gmail.com>: > it is not what MetaLinks are for? > I think is easier than Ghost nowadays… but not sure :) > > look at > > ReflectivityControlTest>>testBeforeSend > > seems to be installing an interception “before send”, who is what you are > asking for. >
It depends if it is an interception before send or an interception before receive ;) If one is to change the method lookup, then this is done at the receiver end of the message send, and, then, I think a ghost is more appropriate. Or metalinks upon entry to the receiver method (i.e. method wrappers type of thing). Thierry > > Esteban > > ps: but I might be wrong… Marcus can explain better :) > > > On 26 Apr 2016, at 14:50, Thierry Goubier <thierry.goub...@gmail.com> > wrote: > > Hi Steven, > > 2016-04-26 14:39 GMT+02:00 Steven Costiou <steven.cost...@kloum.io>: > >> Hello, >> >> i am not new to Pharo nor to the list but this is the first time i speak >> here, so : hi =) >> >> >> I started a phd a few month ago (with Alain Plantec) on context oriented >> programming and dynamic programs adaptation. I am using Pharo for my >> experiments and i would like to intercept messages sent to an object just >> before they get to their receiver. To be more specific, when #msg is sent >> to an object o, i want to be able to intercept it just before it is >> actually executed with the following objects at my disposal : the receiver >> (o), the message or selector, the sender. My objective by doing that is to >> (try to) change the lookup for a given method, and to be able to choose in >> which class the lookup will start. >> >> >> I have been looking a bit and it does not seem to be a "simple" way to do >> that in Pharo. Is that even possible and if so, any advice on where i >> should look ? >> > The easiest would be to use proxy or ghost objects, which catches all > message sends to a proxy of the real object and let you decide what to do > with them. A recent announcement on Ghosts for Pharo 5 was done, maybe > starting with that could be an idea. > > http://forum.world.st/Ann-New-version-of-Ghost-td4886357.html > > For old timers: wasn't Actalk done that way ? > > Thierry > > >> >> >> Thanks, >> >> Steven. >> > > >
