Re: Support for operator overloading

I didn't mean to start a holy/flame war about the subject.

You could think "then use groovy", but Groovy doesn't work for me
because its runtime is too big. And i personally think operator
overloading is a very nice add-on scripts can give to the Java
language.

*Anyway*, i just asked it in the list because i didn't want to
reinvent the wheel. Since nobody said "i did it before", i started
doing it myself. I've already got some operators working.

Cheers,
J.V.



2005/11/28, Yemi D. Bedu <yemi-DnQzskBZRmpWk0Htik3J/[email protected]>:
> Hello,
> I thought of a third syntax format:
> Alias.map("#1 + #2", "MyArray.combine(#1, #2)");
> Alias.map("% #1 #2 #3",
> "StringBuffer.append(#1).append(#2).append(#3)");
> Alias.map("#1[#2]", "#1.getValue(#2)");
> Alias.map("#1[#2]= #3", "#1.setValue(#2, #3)")
>
> We can then use the Alias as a scope executor:
> Alias.setRemoteSyntax("t = newArray(); a = t['s']; t['b'] = 'c';");
> Alias.getRemoteSyntax(); // -> "t = newArray(); a = t['s']; t['b'] =
> 'c';"
> Alias.getLocalSyntax(); // -> "t = newArray(); a = t.getValue('s');
> t.setValue('b', 'c');"
> Alias.execute();
>
> If Beanshell had an initial alias, you can then use all this:
> currentAlias = This.getAlias();
> currentAlias.map("#1 + #2", "(#1 instanceof myArray && #2 instanceof
> myArray)? #1.add(#2) : #1 + #2");
> There is the infinite loop call issue, but that might be solvable by
> allowing the choice of aliasing to drop off on first fails. This would
> mean that if you have a succesfull translation, it would loop to the
> same line, but a fail would go to any of the remaining matching aliases.
> Then you can chain the alais.
>
> Or for this:
> currentAlias.map("#1 + #2", "#1.add(#2)", "#1 instanceof myArray && #2
> instanceof myArray");
>
> It would a conditional alias. The shorter form would mean map(from, to,
> true); though a little dangerous. Good day.
>
> Yemi Bedu
>
> P&R Fasteners
> 325 Pierce St
> Somerset, NJ 08873
> 732-302-3600
>
> -----Original Message-----
> From: beanshell-developers-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> [mailto:beanshell-developers-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of
> Joao Victor
> Sent: Sunday, November 27, 2005 11:12 AM
> To: beanshell-developers-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> Subject: [Beanshell-dev] Support for operator overloading
>
> Hi all,
>
> Does anybody know if there has been any work, or plan, to make Beanshell
> support operator overloading?
>
> Because i was thinking about adding that support (would be very useful
> for this project i'm working on), but i don't want to reinvent the
> wheel.
>
> Cheers,
> J.V.
>
>
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