object that create other objects [meta-object]?
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Hello,
First sorry for my bad english. I will try to be understandable:) I have a problem that is, I think, enouth interesting (and difficult to found responses on the web) to post here. I hope somebody will understand it, and point my attention to some keywords, or web links. Here is my interrogation: - in smaltalk, everything is object, - i create classes whith the browser (an object), - then there are objects in smalltalk that create classes. Question: - What are the keywords, the technologies I will have to deal with to create that kind of objetcts (object that create classes that I can then initialize to create instances)? - After lot of search, the thing I want to create seams to be a meta-object. But how do we do in practice? - Do you have some books to recommand to understand this programming practice? Thanks in advance. Best regards _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
Re: object that create other objects [meta-object]?
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>>>>> "magique" == magique poter <[hidden email]> writes:
magique> Here is my interrogation: magique> - in smaltalk, everything is object, magique> - i create classes whith the browser (an object), magique> - then there are objects in smalltalk that create classes. magique> Question: magique> - What are the keywords, the technologies I will have to deal with to magique> create that kind of objetcts (object that create classes that I can magique> then initialize to create instances)? magique> - After lot of search, the thing I want to create seams to be a magique> meta-object. But how do we do in practice? Classes know how to create their own subclasses, by having subclassed from Behavior. Behavior-class is the meta-meta-object you seek, instances of which will know how to create objects and subclasses. In fact, the textual "class definition" (from the "instance" button in the class browser) is nothing other than smalltalk code that creates that class! You can look up that method in Behavior class to see what it does. -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <[hidden email]> <URL:http://www.stonehenge.com/merlyn/> Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. See http://methodsandmessages.vox.com/ for Smalltalk and Seaside discussion _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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In reply to this post by sebovick
"- Do you have some books to recommand to understand this programming
practice?"
The "blue book" is the bible for that: Smalltalk-80: The Language and its Implementation By Adele Goldberg and DavidRobson; Xerox Palo Alto Research Center ISBN 0-201-11371-6. 344 pp. 1983 there you have the link to download it free.On Wed, May 12, 2010 at 4:03 PM, magique poter <[hidden email]> wrote: Hello, _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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I've begin to search the book, and it look like I will found responses
to my questions.I however try to understand this phrase (from Randal L. Schwartz): > Then just use the protocol that you see in the class browser pane. I have missed somthing... 2010/5/12 Gabriel Brunstein <[hidden email]>: > "- Do you have some books to recommand to understand this programming > practice?" > > The "blue book" is the bible for that: > > Smalltalk-80: The Language and its Implementation By Adele Goldberg and > DavidRobson; Xerox Palo Alto Research Center ISBN 0-201-11371-6. 344 pp. > 1983 > > there you have the link to download it free. > > > > > On Wed, May 12, 2010 at 4:03 PM, magique poter <[hidden email]> wrote: >> >> Hello, >> >> First sorry for my bad english. I will try to be understandable:) >> >> I have a problem that is, I think, enouth interesting (and difficult >> to found responses on the web) to post here. I hope somebody will >> understand it, and point my attention to some keywords, or web links. >> >> Here is my interrogation: >> - in smaltalk, everything is object, >> - i create classes whith the browser (an object), >> - then there are objects in smalltalk that create classes. >> Question: >> - What are the keywords, the technologies I will have to deal with to >> create that kind of objetcts (object that create classes that I can >> then initialize to create instances)? >> - After lot of search, the thing I want to create seams to be a >> meta-object. But how do we do in practice? >> - Do you have some books to recommand to understand this programming >> practice? >> >> Thanks in advance. >> >> Best regards >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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Ok I've find where to found the responses to my questions. The book
effectively cover the topics I want to use. Specially "Protocol for classes". Thanks again to all, this problem was no resolved in my head for some weeks ago. I now know where to go. I will come back for more accurate and interresting questions. Regards 2010/5/12 magique poter <[hidden email]>: > I've begin to search the book, and it look like I will found responses > to my questions.I however try to understand this phrase (from Randal > L. Schwartz): >> Then just use the protocol that you see in the class browser pane. > I have missed somthing... > > 2010/5/12 Gabriel Brunstein <[hidden email]>: >> "- Do you have some books to recommand to understand this programming >> practice?" >> >> The "blue book" is the bible for that: >> >> Smalltalk-80: The Language and its Implementation By Adele Goldberg and >> DavidRobson; Xerox Palo Alto Research Center ISBN 0-201-11371-6. 344 pp. >> 1983 >> >> there you have the link to download it free. >> >> >> >> >> On Wed, May 12, 2010 at 4:03 PM, magique poter <[hidden email]> wrote: >>> >>> Hello, >>> >>> First sorry for my bad english. I will try to be understandable:) >>> >>> I have a problem that is, I think, enouth interesting (and difficult >>> to found responses on the web) to post here. I hope somebody will >>> understand it, and point my attention to some keywords, or web links. >>> >>> Here is my interrogation: >>> - in smaltalk, everything is object, >>> - i create classes whith the browser (an object), >>> - then there are objects in smalltalk that create classes. >>> Question: >>> - What are the keywords, the technologies I will have to deal with to >>> create that kind of objetcts (object that create classes that I can >>> then initialize to create instances)? >>> - After lot of search, the thing I want to create seams to be a >>> meta-object. But how do we do in practice? >>> - Do you have some books to recommand to understand this programming >>> practice? >>> >>> Thanks in advance. >>> >>> Best regards >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> [hidden email] >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
Re: object that create other objects [meta-object]?
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In reply to this post by sebovick
Hi Magique, you English is perfect for us ;)
Regarding your question, I would recommend you to read: - Pharo by Example book: http://pharobyexample.org/ Chapter 13 "Classes and Metaclasses" - This is also interesting: http://stephane.ducasse.free.fr/Teaching/Lille/0910-MetaModelisation/ObjVlispTD/ http://stephane.ducasse.free.fr/Teaching/Lille/0910-MetaModelisation/ObjVlispDocuments/ Cheers Mariano On Wed, May 12, 2010 at 10:19 PM, magique poter <[hidden email]> wrote: I've begin to search the book, and it look like I will found responses _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
Re: object that create other objects [meta-object]?
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In reply to this post by sebovick
On Thu, May 13, 2010 at 2:03 AM, magique poter <[hidden email]> wrote:
> Hello, > > First sorry for my bad english. I will try to be understandable:) > > I have a problem that is, I think, enouth interesting (and difficult > to found responses on the web) to post here. I hope somebody will > understand it, and point my attention to some keywords, or web links. > > Here is my interrogation: > - in smaltalk, everything is object, > - i create classes whith the browser (an object), > - then there are objects in smalltalk that create classes. > Question: > - What are the keywords, the technologies I will have to deal with to > create that kind of objetcts (object that create classes that I can > then initialize to create instances)? > - After lot of search, the thing I want to create seams to be a > meta-object. But how do we do in practice? > - Do you have some books to recommand to understand this programming practice? Try to read chapter 13 of Pharo by Example book : http://pharobyexample.org/ Best regards, -- Serge Stinckwich UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam Every DSL ends up being Smalltalk http://doesnotunderstand.org/ _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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