Re: [Pharo-users] Package extension. Adding instance variables to classes
Just be careful, that privateState thing looks like a Moose only Famix feature. It't not available in plain Pharo objects :) On Wed, May 9, 2018 at 2:09 AM, Alidra Abdelghani via Pharo-users < pharo-users@lists.pharo.org> wrote:
---------- Forwarded message ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr> To: Pavel Krivanek <pavel.krivanek@gmail.com> Cc: Any question about pharo is welcome <pharo-users@lists.pharo.org> Bcc: Date: Wed, 9 May 2018 01:09:06 +0100 Subject: Re: Package extension. Adding instance variables to classes Hi Pavel,
Thank you for your answer. I actually didnât know about this mechanism. I think it is will do the job :) I have probably to rewrite some parts pf my code to access my variables through privateState. no?
Thanks again Abdelghani
On 07 May 2018, at 13:15, pharo-users-request@lists.pharo.org wrote:
Message: 1 Date: Mon, 7 May 2018 13:43:56 +0200 From: Pavel Krivanek <pavel.krivanek@gmail.com> To: Any question about pharo is welcome <pharo-users@lists.pharo.org> Subject: Re: [Pharo-users] Package extension. Adding instance variables to classes Message-ID: <CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@mail.gmail.com> Content-Type: text/plain; charset="utf-8"
2018-05-07 12:25 GMT+02:00 Alidra Abdelghani via Pharo-users < pharo-users@lists.pharo.org>:
---------- P?eposlan? zpr?va ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr> To: pharo-users@lists.pharo.org Cc: Bcc: Date: Mon, 7 May 2018 11:25:49 +0100 Subject: Package extension. Adding instance variables to classes Hi,
I am working on a package named ClassNamesAnalyzer and I need to add code to third party classes in other packages (for instance the FAMIX-Core package). ?Extending? third party classes with methods is easy; I just need to categorise my methods under the *ClassNamesAnalyzer protocole so that loading my package will load them in the image. However, if I want to add instance variables to theses classes, they are not there when I load the package in a new image.
*So my question is* : is there a way to include instance variables addition to other packages in my package?
Currently not, you should use privateState
*Another question is* : is it good practice to add instance variables to classes in third party packages and is there a way to avoid it (because I am not very confortable with that idea)?
It is not, see FAMIXContainerEntity>>#definedAnnotationTypes how this issue is currently being solved using the privateState.
Cheers, -- Pavel
Thanks in advance, Abdelghani
-- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13
Ok, got it. Thanks Guille Abdelghani
On 10 May 2018, at 21:59, Guillermo Polito <guillermopolito@gmail.com> wrote:
Just be careful, that privateState thing looks like a Moose only Famix feature. It't not available in plain Pharo objects :)
On Wed, May 9, 2018 at 2:09 AM, Alidra Abdelghani via Pharo-users <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> wrote:
---------- Forwarded message ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr <mailto:alidrandco@yahoo.fr>> To: Pavel Krivanek <pavel.krivanek@gmail.com <mailto:pavel.krivanek@gmail.com>> Cc: Any question about pharo is welcome <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> Bcc: Date: Wed, 9 May 2018 01:09:06 +0100 Subject: Re: Package extension. Adding instance variables to classes Hi Pavel,
Thank you for your answer. I actually didnât know about this mechanism. I think it is will do the job :) I have probably to rewrite some parts pf my code to access my variables through privateState. no?
Thanks again Abdelghani
On 07 May 2018, at 13:15, pharo-users-request@lists.pharo.org <mailto:pharo-users-request@lists.pharo.org> wrote:
Message: 1 Date: Mon, 7 May 2018 13:43:56 +0200 From: Pavel Krivanek <pavel.krivanek@gmail.com <mailto:pavel.krivanek@gmail.com>> To: Any question about pharo is welcome <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> Subject: Re: [Pharo-users] Package extension. Adding instance variables to classes Message-ID: <CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@mail.gmail.com <mailto:CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@mail.gmail.com>> Content-Type: text/plain; charset="utf-8"
2018-05-07 12:25 GMT+02:00 Alidra Abdelghani via Pharo-users < pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>>:
---------- P?eposlan? zpr?va ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr <mailto:alidrandco@yahoo.fr>> To: pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org> Cc: Bcc: Date: Mon, 7 May 2018 11:25:49 +0100 Subject: Package extension. Adding instance variables to classes Hi,
I am working on a package named ClassNamesAnalyzer and I need to add code to third party classes in other packages (for instance the FAMIX-Core package). ?Extending? third party classes with methods is easy; I just need to categorise my methods under the *ClassNamesAnalyzer protocole so that loading my package will load them in the image. However, if I want to add instance variables to theses classes, they are not there when I load the package in a new image.
*So my question is* : is there a way to include instance variables addition to other packages in my package?
Currently not, you should use privateState
*Another question is* : is it good practice to add instance variables to classes in third party packages and is there a way to avoid it (because I am not very confortable with that idea)?
It is not, see FAMIXContainerEntity>>#definedAnnotationTypes how this issue is currently being solved using the privateState.
Cheers, -- Pavel
Thanks in advance, Abdelghani
--
Guille Polito Research Engineer
Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - http://www.cnrs.fr <http://www.cnrs.fr/>
Web: http://guillep.github.io <http://guillep.github.io/> Phone: +33 06 52 70 66 13
Dr. Abdelghani Alidra Enseignant-chercheur Université 20 août 1955 SKIKDA-ALGÃRIE Mob:+ 213 550 453 391
Guillermo Polito wrote:
Just be careful, that privateState thing looks like a Moose only Famix feature. It't not available in plain Pharo objects :)
In ES6 mailing list, they had this problem re how to do private state for objects, and it was shown that having private state is sort of isomorphic to having WeakMap indexed by objects. So in case of Pharo, I'd say using WeakIdentitityKeyDictionary can do the trick. Without resorting to any external dependency. Herby
On Wed, May 9, 2018 at 2:09 AM, Alidra Abdelghani via Pharo-users <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> wrote:
---------- Forwarded message ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr <mailto:alidrandco@yahoo.fr>> To: Pavel Krivanek <pavel.krivanek@gmail.com <mailto:pavel.krivanek@gmail.com>> Cc: Any question about pharo is welcome <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> Bcc: Date: Wed, 9 May 2018 01:09:06 +0100 Subject: Re: Package extension. Adding instance variables to classes Hi Pavel,
Thank you for your answer. I actually didnât know about this mechanism. I think it is will do the job :) I have probably to rewrite some parts pf my code to access my variables through privateState. no?
Thanks again Abdelghani
On 07 May 2018, at 13:15, pharo-users-request@lists.pharo.org <mailto:pharo-users-request@lists.pharo.org> wrote:
Message: 1 Date: Mon, 7 May 2018 13:43:56 +0200 From: Pavel Krivanek <pavel.krivanek@gmail.com <mailto:pavel.krivanek@gmail.com>> To: Any question about pharo is welcome <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> Subject: Re: [Pharo-users] Package extension. Adding instance variables to classes Message-ID: <CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@mail.gmail.com <mailto:CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@mail.gmail.com>> Content-Type: text/plain; charset="utf-8"
2018-05-07 12:25 GMT+02:00 Alidra Abdelghani via Pharo-users < pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>>:
---------- P?eposlan? zpr?va ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr <mailto:alidrandco@yahoo.fr>> To:pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org> Cc: Bcc: Date: Mon, 7 May 2018 11:25:49 +0100 Subject: Package extension. Adding instance variables to classes Hi,
I am working on a package named ClassNamesAnalyzer and I need to add code to third party classes in other packages (for instance the FAMIX-Core package). ?Extending? third party classes with methods is easy; I just need to categorise my methods under the *ClassNamesAnalyzer protocole so that loading my package will load them in the image. However, if I want to add instance variables to theses classes, they are not there when I load the package in a new image.
*So my question is* : is there a way to include instance variables addition to other packages in my package?
Currently not, you should use privateState
*Another question is* : is it good practice to add instance variables to classes in third party packages and is there a way to avoid it (because I am not very confortable with that idea)?
It is not, see FAMIXContainerEntity>>#definedAnnotationTypes how this issue is currently being solved using the privateState.
Cheers, -- Pavel
Thanks in advance, Abdelghani
--
Guille Polito
Research Engineer
Centre de Recherche en Informatique, Signal et Automatique de Lille
CRIStAL - UMR 9189
French National Center for Scientific Research - _http://www.cnrs.fr_
*Web:* _http://guillep.github.io_
*Phone: *+33 06 52 70 66 13
On Sun, May 13, 2018 at 6:37 PM, Herbert VojÄÃk <herby@mailbox.sk> wrote:
Guillermo Polito wrote:
Just be careful, that privateState thing looks like a Moose only Famix feature. It't not available in plain Pharo objects :)
In ES6 mailing list, they had this problem re how to do private state for objects, and it was shown that having private state is sort of isomorphic to having WeakMap indexed by objects. So in case of Pharo, I'd say using WeakIdentitityKeyDictionary can do the trick. Without resorting to any external dependency.
This works if the WeakMap is ephemeral. We should see in latest Pharo7 if Ephemerons are working.
Herby
On Wed, May 9, 2018 at 2:09 AM, Alidra Abdelghani via Pharo-users <
pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> wrote:
---------- Forwarded message ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr <mailto:alidrandco@yahoo.fr>> To: Pavel Krivanek <pavel.krivanek@gmail.com <mailto:pavel.krivanek@gmail.com>> Cc: Any question about pharo is welcome <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> Bcc: Date: Wed, 9 May 2018 01:09:06 +0100 Subject: Re: Package extension. Adding instance variables to classes Hi Pavel,
Thank you for your answer. I actually didnât know about this mechanism. I think it is will do the job :) I have probably to rewrite some parts pf my code to access my variables through privateState. no?
Thanks again Abdelghani
On 07 May 2018, at 13:15, pharo-users-request@lists.pharo.org <mailto:pharo-users-request@lists.pharo.org> wrote:
Message: 1 Date: Mon, 7 May 2018 13:43:56 +0200 From: Pavel Krivanek <pavel.krivanek@gmail.com <mailto:pavel.krivanek@gmail.com>> To: Any question about pharo is welcome <pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>> Subject: Re: [Pharo-users] Package extension. Adding instance variables to classes Message-ID: <CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@mail.gmail.com <mailto:CAHN2FzeMiBL4Y8asJ0XCjS2AQdxycoN+pbc+Hsd=trMnmuiJqw@ mail.gmail.com>> Content-Type: text/plain; charset="utf-8"
2018-05-07 12:25 GMT+02:00 Alidra Abdelghani via Pharo-users < pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org>>:
---------- P?eposlan? zpr?va ---------- From: Alidra Abdelghani <alidrandco@yahoo.fr <mailto:alidrandco@yahoo.fr>> To:pharo-users@lists.pharo.org <mailto:pharo-users@lists.pharo.org> Cc: Bcc: Date: Mon, 7 May 2018 11:25:49 +0100 Subject: Package extension. Adding instance variables to classes Hi,
I am working on a package named ClassNamesAnalyzer and I need to add code to third party classes in other packages (for instance the FAMIX-Core package). ?Extending? third party classes with methods is easy; I just need to categorise my methods under the *ClassNamesAnalyzer protocole so that loading my package will load them in the image. However, if I want to add instance variables to theses classes, they are not there when I load the package in a new image.
*So my question is* : is there a way to include instance variables addition to other packages in my package?
Currently not, you should use privateState
*Another question is* : is it good practice to add instance
variables to classes in third party packages and is there a way to avoid it (because I am not very confortable with that idea)?
It is not, see FAMIXContainerEntity>>#definedAnnotationTypes how this issue is currently being solved using the privateState.
Cheers, -- Pavel
Thanks in advance, Abdelghani
--
Guille Polito
Research Engineer
Centre de Recherche en Informatique, Signal et Automatique de Lille
CRIStAL - UMR 9189
French National Center for Scientific Research - _http://www.cnrs.fr_
*Web:* _http://guillep.github.io_
*Phone: *+33 06 52 70 66 13
-- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13
participants (3)
-
Alidra Abdelghani -
Guillermo Polito -
Herbert VojÄÃk