[Pharo-project] File out as Ruby - Possible ?
Hi, Do you know if it's possible to export smalltalk code in ruby ? I have to port a small app I did and so, it could help me :) I don't think there's an existing tool, but maybe some directions... Actually, I'd prefer writing a simple tool to do that rather than doing all by hand. I don't expect it to work out of the box, but just save me some time. TIA -- Cédrick
Have a look at the RB AST. You can traverse the AST similar to the pretty-printer that is included (RBFormatter and RBConfigurableFormatter) and instead emit Ruby. I've done something similar for Javascript, and others have done it for other languages. Lukas On 10 February 2010 16:51, Cédrick Béler <cdrick65@gmail.com> wrote:
Hi,
Do you know if it's possible to export smalltalk code in ruby ? I have to port a small app I did and so, it could help me :)
I don't think there's an existing tool, but maybe some directions... Actually, I'd prefer writing a simple tool to do that rather than doing all by hand.
I don't expect it to work out of the box, but just save me some time.
TIA
-- Cédrick
-- Lukas Renggli http://www.lukas-renggli.ch
Cool... thanks for the info. I guess this is time I go deeper in AST and friends... I'll see how it goes and I probably come back :) 2010/2/10 Lukas Renggli <renggli@gmail.com>:
Have a look at the RB AST. You can traverse the AST similar to the pretty-printer that is included (RBFormatter and RBConfigurableFormatter) and instead emit Ruby. I've done something similar for Javascript, and others have done it for other languages.
Lukas
On 10 February 2010 16:51, Cédrick Béler <cdrick65@gmail.com> wrote:
Hi,
Do you know if it's possible to export smalltalk code in ruby ? I have to port a small app I did and so, it could help me :)
I don't think there's an existing tool, but maybe some directions... Actually, I'd prefer writing a simple tool to do that rather than doing all by hand.
I don't expect it to work out of the box, but just save me some time.
TIA
-- Cédrick
-- Lukas Renggli http://www.lukas-renggli.ch
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Cédrick
Ok here are some questions to see if I'm on the right track.
From what I've guessed I need to create my own formatter (RubyFormatter) by basically rewriting all private-formating methods (am I right here ?).
Then, I use the parser and the RubyFormatter. But what I want is export a package, ie. classes with their methods and extension methods. I can't parse directly a full class nor a package... can I directly ? I guess not So I need to parse each class definition (and class class definition), format them, then parse/format each method source (probably better to get the code expressions from the MCWorkingCopy or PackageInfo I guess)... RBParser parseExpression: MyClass definition. Then something like: methodsRefs do: [:mr | RBParser parseMethod: mr sourceCode] ... I'll try later but if you have any comments... :) TIA Cédrick
From what I've guessed I need to create my own formatter (RubyFormatter) by basically rewriting all private-formating methods (am I right here ?).
You can't probably reuse anything. I would just subclass RBProgramNodeVisitor and implement all the #accept* methods. RBFormatter is just an example of how that can be done.
Then, I use the parser and the RubyFormatter. But what I want is export a package, ie. classes with their methods and extension methods. I can't parse directly a full class nor a package... can I directly ? I guess not
Yeah, that only converts a single method.
So I need to parse each class definition (and class class definition), format them, Â then parse/format each method source (probably better to get the code expressions from the MCWorkingCopy or PackageInfo I guess)...
RBParser parseExpression: MyClass definition.
That's not what you want. Ruby classes look very different to Smalltalk class definitions. I would do something like: env := BrowserEnvironment new forPackageNames: #('MyPackage'). env classesDo: [ :class | stream := FileStream on: class name , '.rb'. " write header of class definition for 'class' " env selectorsForClass: class do: [ :selector | tree := class parseTreeFor: selector. RubyFormatter format: tree on: stream ]. " write footer of class definition for 'class' " stream close ] Lukas -- Lukas Renggli http://www.lukas-renggli.ch
Lots of useful pointer... Thanks a lot Lukas...
That's not what you want. Ruby classes look very different to Smalltalk class definitions. I would do something like:
env := BrowserEnvironment new forPackageNames: #('MyPackage'). env classesDo: [ :class | Â Â stream := FileStream on: class name , '.rb'. Â Â " write header of class definition for 'class' " Â Â env selectorsForClass: class do: [ :selector | Â Â Â tree := class parseTreeFor: selector. Â Â Â RubyFormatter format: tree on: stream ]. Â Â " write footer of class definition for 'class' " Â Â stream close ]
Lukas
-- Lukas Renggli http://www.lukas-renggli.ch
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-- Cédrick
On 10 Feb 2010, at 17:34, Lukas Renggli wrote:
Have a look at the RB AST. You can traverse the AST similar to the pretty-printer that is included (RBFormatter and RBConfigurableFormatter) and instead emit Ruby. I've done something similar for Javascript, and others have done it for other languages. Since it is already on-topic: Is there something which exports my nice Smalltalk code to some approximate, maybe even with holes, representation in Java code?
Thanks Stefan
Lukas
On 10 February 2010 16:51, Cédrick Béler <cdrick65@gmail.com> wrote:
Hi,
Do you know if it's possible to export smalltalk code in ruby ? I have to port a small app I did and so, it could help me :)
I don't think there's an existing tool, but maybe some directions... Actually, I'd prefer writing a simple tool to do that rather than doing all by hand.
I don't expect it to work out of the box, but just save me some time.
TIA
-- Cédrick
-- Lukas Renggli http://www.lukas-renggli.ch
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Stefan Marr Software Languages Lab Vrije Universiteit Brussel Pleinlaan 2 / B-1050 Brussels / Belgium http://soft.vub.ac.be/~smarr Phone: +32 2 629 3956 Fax: +32 2 629 3525
On Wed, Feb 10, 2010 at 7:53 PM, Stefan Marr <pharo@stefan-marr.de> wrote:
On 10 Feb 2010, at 17:34, Lukas Renggli wrote:
Have a look at the RB AST. You can traverse the AST similar to the pretty-printer that is included (RBFormatter and RBConfigurableFormatter) and instead emit Ruby. I've done something similar for Javascript, and others have done it for other languages. Since it is already on-topic: Is there something which exports my nice Smalltalk code to some approximate, maybe even with holes, representation in Java code?
This is all I know: http://www.squeaksource.com/Smalltalk2Java.html http://bergel.eu/download/TranslatingSmalltalkToJava.pdf http://www.info.ucl.ac.be/~jbrichau/javaconnect.html
Thanks Stefan
Lukas
On 10 February 2010 16:51, Cédrick Béler <cdrick65@gmail.com> wrote:
Hi,
Do you know if it's possible to export smalltalk code in ruby ? I have to port a small app I did and so, it could help me :)
I don't think there's an existing tool, but maybe some directions... Actually, I'd prefer writing a simple tool to do that rather than doing all by hand.
I don't expect it to work out of the box, but just save me some time.
TIA
-- Cédrick
-- Lukas Renggli http://www.lukas-renggli.ch
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Stefan Marr Software Languages Lab Vrije Universiteit Brussel Pleinlaan 2 / B-1050 Brussels / Belgium http://soft.vub.ac.be/~smarr <http://soft.vub.ac.be/%7Esmarr> Phone: +32 2 629 3956 Fax: +32 2 629 3525
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
Yes, Lukas show me how to do that. It's very easy. On Wed, Feb 10, 2010 at 11:34 PM, Lukas Renggli <renggli@gmail.com> wrote:
Have a look at the RB AST. You can traverse the AST similar to the pretty-printer that is included (RBFormatter and RBConfigurableFormatter) and instead emit Ruby. I've done something similar for Javascript, and others have done it for other languages.
Lukas
On 10 February 2010 16:51, Cédrick Béler <cdrick65@gmail.com> wrote:
Hi,
Do you know if it's possible to export smalltalk code in ruby ? I have to port a small app I did and so, it could help me :)
I don't think there's an existing tool, but maybe some directions... Actually, I'd prefer writing a simple tool to do that rather than doing all by hand.
I don't expect it to work out of the box, but just save me some time.
TIA
-- Cédrick
-- Lukas Renggli http://www.lukas-renggli.ch
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Serge Stinckwich UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam Smalltalkers do: [:it | All with: Class, (And love: it)] http://doesnotunderstand.org/
participants (5)
-
Cédrick Béler -
Lukas Renggli -
Mariano Martinez Peck -
Serge Stinckwich -
Stefan Marr