Luis - can you be more specific than that?

Mark

On Sat, Jun 13, 2009 at 8:06 AM, Luis Majano <[email protected]> wrote:

>
> Sorry, forgot about this. Well the patch is to add a new attribute to
> cfarguments called "passby=value" on all cases where recursion is done
> and arrays are passed.
>
> On Jun 4, 5:51 pm, Jamie Krug <[email protected]> wrote:
> > +1 :) Mark or Luis: do you happen to have this patch, or maybe point
> > me in the right direction?
> >
> > Thanks!
> > Jamie
> >
> > On May 26, 10:17 am, Shawn <[email protected]> wrote:
> >
> > > Patch?  Oh yes, please! :D
> >
> > > Glad to see you guys are working on this.
> >
> > > On May 24, 8:25 pm, Mark Mandel <[email protected]> wrote:
> >
> > > > Luis, can you send me a patch with the appropriate place this
> workaround
> > > > needs to be placed inside Transfer?
> >
> > > > Mark
> >
> > > > On Fri, May 22, 2009 at 8:22 AM, Kevan Stannard <
> [email protected]>wrote:
> >
> > > > > There was in good discussion on the array pass by value/reference
> on this a
> > > > > while back:
> > > > >http://www.mail-archive.com/[email protected]/msg01670.html
> >
> > > > > Sean clarified the Adobe ColdFusion behaviour as:
> >
> > > > > Arrays are actually copy-on-assignment. When you pass an array to a
> function, it assigns the array to the argument, creating a copy. When you
> return an
> > > > > array from a function, it does not copy it - unless you assign the
> result to a variable. You can see that here:
> >
> > > > > <cfscript>
> > > > > a = [ 1, 2, 3, 4 ];
> >
> > > > > function getA() { return a; }
> >
> > > > > b = getA(); // copies a so b is a separate array
> > > > > b[1] = 42; // does not change a
> >
> > > > > arrayAppend(getA(), 5); // no assignment - a *is* modified
> > > > > </cfscript>
> >
> > > > > On Railo's compatibility; I would be surprised if Railo changed
> this particular behaviour for performance reasons. I imagine this decision
> was made to implement it how it should have been done in Adobe CF. I read
> somewhere that BlueDragon also implements array pass-by-reference (not
> sure).
> >
> > > > > Perhaps the problem is not with Railo, perhaps Adobe should
> implement:
> > > > > <cfargument name="myArray" type="Array" passby="reference" />
> >
> > > > > I do want all of the CFML engines to implement fundamental language
> behaviour in the same way, but I don't see a problem in this particular
> case.
> >
> > > > > Fortunately we have a CFML steering committee now which should
> hopefully maximise compatibility with CFML engines.
> >
> > > > > 2009/5/21 Dan Wilson <[email protected]>
> >
> > > > >> You knowm I am of two minds about this.  The engineer in me is all
> about a
> > > > >> more performant engine. I've made some design mistakes I wish I
> could fix,
> > > > >> for performance, for extensibility or for the good of the
> children...
> > > > >> whatever. Mistakes happen.
> >
> > > > >> However, for Railo to change the way CFML works, and then tout
> themselves
> > > > >> as faster and better is a little bit rich. Sure you can be
> faster/better if
> > > > >> you don't implement everything ColdFusion does. But you aren't
> fully
> > > > >> competing then either, are you?
> >
> > > > >> Take Chris's example, the xe.formaction='whatever'. Sure this is
> slower to
> > > > >> look up. Sure if I was writing an engine for pure speed I'd try to
> not
> > > > >> support it, heck it affects EVERY variable lookup. However, the
> standard
> > > > >> (good, bad or ugly) has been set for years and ColdFusion supports
> it. For
> > > > >> Railo to not support it means they are out of compliance with
> ColdFusion and
> > > > >> I would be very hesitant to use Railo on existing code for that
> reason.
> >
> > > > >> In short, I love the idea of Railo and I love the idea of a faster
> engine.
> > > > >> I don't love Cherry Picking which parts of ColdFusion to support
> and which
> > > > >> to leave off for performance, then selling yourself based on
> performance. If
> > > > >> Railo fully implements the ColdFusion spec, without requiring
> non-standard
> > > > >> CFML attributes, compiler options and the like, then I'll be
> impressed.
> >
> > > > >> DW
> >
> > > > --
> > > > E: [email protected]
> > > > W:www.compoundtheory.com
> >
>


-- 
E: [email protected]
W: www.compoundtheory.com

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