December 2013 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Review someone

by StÃ©phane Ducasse

I will :) Stef On Dec 6, 2013, at 10:38 AM, Benjamin <Benjamin.VanRyseghem.Pharo(a)gmail.com> wrote: > Hi guys, > > could someone have a look at this issue ? > https://pharo.fogbugz.com/default.asp?12304 > > Itâs pretty simple, but I am facing the MC filter slowness 200 times per day, > so if someone review it, then we can put it into Pharo, and make the world a better place to live. > > > So if you want in a coupe of minutes makes me happy, and a better world for you children, you know what to do :) > > Ben >

Dec. 6, 2013

A Push to clear the issue tracker...

by Marcus Denker

Hi, With the end of the year close and a relase of Pharo3 planed for Marchâ¦ it is the right time to clean the issue tracker. -> Have a look at all the issues assigned to you. All current? Some action that can be done? Will you really work on it? -> Double check *all* issues that you submitted. - Is it maybe already fixed? - did someone ask you a question? - Is it really an issue for the public tracker? An issue tracker is not a personal TODO list! -> Double check that all bugs you know do actually have an issue tracker entry. -> Try to fix one or two little things over christmas holidays. We have less open bugs than subscribers to this listâ¦. Marcus

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Marcus Denker

On 06 Dec 2013, at 10:01, Roberto Minelli <roberto.minelli(a)usi.ch> wrote: > Hi guys, > > I am using Spy for my project, and I need to do something which, on top of my knowledge, is not supported. > > Here is the point: Spy allows to insert code before (#beforeRun:with:in:) and after (#afterRun:with:in:) and works perfectly. > > Now suppose I want to inject some code *inside* the method, e.g., > > aMethodToBeProfiled > > do something > > "Injected code accessing some fields of the current instance of this objectâ > Transcript show: self field asString. > > Is there any support for this? > Here is how to do it on the IR level: A class TestMy with test ^x + 1 + x byte code is: 13 <00> pushRcvr: 0 14 <76> pushConstant: 1 15 <B0> send: + 16 <00> pushRcvr: 0 17 <B0> send: + 18 <7C> returnTop âget a copy of the IR tree" irMethod := (TestMy>>#test) ir copy. âget all instance variable access IR instructionsâ allIvarAccesses := irMethod allInstructionsMatching: [ :ir |ir isInstVarAccess]. âinsert code for â1 haltâ before all of them" allIvarAccesses do: [ :each | each addInstructionsBefore: { IRInstruction pushLiteral: 1. IRInstruction send: #halt. IRInstruction popTop }]. âgenerate a new compiledMethod" cm := irMethod generate: (TestMy>>#test) trailer. âinstall in the class" TestMy addSelector: #test withMethod: cm. 17 <76> pushConstant: 1 18 <D0> send: halt 19 <87> pop 20 <00> pushRcvr: 0 21 <76> pushConstant: 1 22 <B0> send: + 23 <76> pushConstant: 1 24 <D0> send: halt 25 <87> pop 26 <00> pushRcvr: 0 27 <B0> send: + 28 <7C> returnTop â> TestMy new test What is now yet wiring is quick return methods â> need to clear the primitive in that case, should not be hard to do.

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Marcus Denker

On 06 Dec 2013, at 10:51, Roberto Minelli <roberto.minelli(a)usi.ch> wrote: > WOW.. Thank you guys for such answers!! It seems this is an hot topic. > > However, now I will try to hack something on top of Spy and look at Phantom in the weekend ;) > Phantom does *not* support sub-method elements. Marcus

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Roberto Minelli

WOW.. Thank you guys for such answers!! It seems this is an hot topic. However, now I will try to hack something on top of Spy and look at Phantom in the weekend ;) Cheers, R On Dec 6, 2013, at 10:35 AM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On 06 Dec 2013, at 10:01, Roberto Minelli <roberto.minelli(a)usi.ch> wrote: > >> Hi guys, >> >> I am using Spy for my project, and I need to do something which, on top of my knowledge, is not supported. >> >> Here is the point: Spy allows to insert code before (#beforeRun:with:in:) and after (#afterRun:with:in:) and works perfectly. >> >> Now suppose I want to inject some code *inside* the method, e.g., >> >> aMethodToBeProfiled >> >> do something >> >> "Injected code accessing some fields of the current instance of this objectâ >> Transcript show: self field asString. >> >> Is there any support for this? >> > > Sadly not yetâ¦ we plan to have real support for this in Pharo4. > > The AOP solutions (both AspectS and Phantom) do *not* support point cuts on sub-method > concepts like âinstance variable accessâ. > > The stuff I did for my PhD supports this quite nicelyâ¦ but that I have not yet ported to Pharo. > (The idea is to do an âengineering gradeâ pass over this and put it in Pharo not as a research > prototype but as a real, production ready concept). > > I really need to push thisâ¦ people need it. > > There is a way to do all this on a lower level (e.g. AST transformation or IR transformation)â¦ I will write a mail how to > do that later the weekend. > > Marcus

Dec. 6, 2013

Review someone

by Benjamin

Hi guys, could someone have a look at this issue ? https://pharo.fogbugz.com/default.asp?12304 Itâs pretty simple, but I am facing the MC filter slowness 200 times per day, so if someone review it, then we can put it into Pharo, and make the world a better place to live. So if you want in a coupe of minutes makes me happy, and a better world for you children, you know what to do :) Ben

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Torsten Bergmann

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Marcus Denker

On 06 Dec 2013, at 10:01, Roberto Minelli <roberto.minelli(a)usi.ch> wrote: > Hi guys, > > I am using Spy for my project, and I need to do something which, on top of my knowledge, is not supported. > > Here is the point: Spy allows to insert code before (#beforeRun:with:in:) and after (#afterRun:with:in:) and works perfectly. > > Now suppose I want to inject some code *inside* the method, e.g., > > aMethodToBeProfiled > > do something > > "Injected code accessing some fields of the current instance of this objectâ > Transcript show: self field asString. > > Is there any support for this? > Sadly not yetâ¦ we plan to have real support for this in Pharo4. The AOP solutions (both AspectS and Phantom) do *not* support point cuts on sub-method concepts like âinstance variable accessâ. The stuff I did for my PhD supports this quite nicelyâ¦ but that I have not yet ported to Pharo. (The idea is to do an âengineering gradeâ pass over this and put it in Pharo not as a research prototype but as a real, production ready concept). I really need to push thisâ¦ people need it. There is a way to do all this on a lower level (e.g. AST transformation or IR transformation)â¦ I will write a mail how to do that later the weekend. Marcus

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Benjamin

I also think you should have a look at Phantom :) Maybe Johan will give you more details :) Ben On 06 Dec 2013, at 10:14, Torsten Bergmann <astares(a)gmx.de> wrote: > Hi Roberto, > > usually what you need is support for so called ABIA (Around, Begin, Inner and After) execution. > Brings Smallscript back to my brain which had nice support for this. > > In Squeak there was AspectS, I dont know if there is a port of AspectS for Pharo. > > Maybe the PHANtom project can be of help here as it claims to be a modern aspect language > for Pharo: > > http://de.slideshare.net/esug/phantom-a-modern-aspect-language-for-pharo > > Hope this helps > > Bye > T. > >> Gesendet: Freitag, 06. Dezember 2013 um 10:00 Uhr >> Von: "Roberto Minelli" <roberto.minelli(a)usi.ch> >> An: Pharo-dev <pharo-dev(a)lists.pharo.org> >> Betreff: [Pharo-dev] [Spy] How to inject code *inside* a method >> >> Hi guys, >> >> I am using Spy for my project, and I need to do something which, on top of my knowledge, is not supported. >> >> Here is the point: Spy allows to insert code before (#beforeRun:with:in:) and after (#afterRun:with:in:) and works perfectly. >> >> Now suppose I want to inject some code *inside* the method, e.g., >> >> aMethodToBeProfiled >> >> do something >> >> "Injected code accessing some fields of the current instance of this objectâ >> Transcript show: self field asString. >> >> Is there any support for this? >> >> Thanks in advance, >> R >> >> >> >

Dec. 6, 2013

Re: [Pharo-dev] [Spy] How to inject code *inside* a method

by Torsten Bergmann

Hi Roberto, usually what you need is support for so called ABIA (Around, Begin, Inner and After) execution. Brings Smallscript back to my brain which had nice support for this. In Squeak there was AspectS, I dont know if there is a port of AspectS for Pharo. Maybe the PHANtom project can be of help here as it claims to be a modern aspect language for Pharo: http://de.slideshare.net/esug/phantom-a-modern-aspect-language-for-pharo Hope this helps Bye T. > Gesendet: Freitag, 06. Dezember 2013 um 10:00 Uhr > Von: "Roberto Minelli" <roberto.minelli(a)usi.ch> > An: Pharo-dev <pharo-dev(a)lists.pharo.org> > Betreff: [Pharo-dev] [Spy] How to inject code *inside* a method > > Hi guys, > > I am using Spy for my project, and I need to do something which, on top of my knowledge, is not supported. > > Here is the point: Spy allows to insert code before (#beforeRun:with:in:) and after (#afterRun:with:in:) and works perfectly. > > Now suppose I want to inject some code *inside* the method, e.g., > > aMethodToBeProfiled > > do something > > "Injected code accessing some fields of the current instance of this objectâ > Transcript show: self field asString. > > Is there any support for this? > > Thanks in advance, > R > > >

Dec. 6, 2013