[PD-dev] BUG: namespace prefixes broken in 0.40

Miller Puckette mpuckett at imusic1.ucsd.edu
Sun Oct 29 02:40:35 CEST 2006


That's been bothering me too... it's a race to see which 'split' gets
hold of the basename.

But I can see mixing patches which use |split| with others that use 
disambiguated names like |iemlib/split| which I think will cause trouble
if the name "split" isn't made available...

dunno.

M

On Sat, Oct 28, 2006 at 08:24:16PM -0400, Hans-Christoph Steiner wrote:
> 
> Ok, so I just found something that may or may not be a problem, but  
> its not clean at least.  Once you instantiate an object with the  
> namespace prefix, that class gets added to the namespace.  For  
> example, follow these steps:
> _ _ _ _
> |split| - no go
> - - - -
> [iemlib/split] - makes an object
> 
> [split] - makes another instance of iemlib's [split]
> 
> This isn't new, this happened in 0.39.2.  But I think its something  
> to think about, and its related to IOhannes' patch.  In that patch,  
> IIRC, the whole name with namespace prefix and class name is used at  
> the classname, at least for the canvas name.  Perhaps that's what  
> needs to happen throughout?
> 
> .hc
> 
> On Oct 27, 2006, at 11:48 AM, Miller Puckette wrote:
> 
> >Yep, I have to look at (and try to understand) that... I'll bump that
> >up on my dolist :)
> >
> >cheers
> >M
> >
> >On Fri, Oct 27, 2006 at 01:29:16AM -0400, Hans-Christoph Steiner  
> >wrote:
> >>
> >>I did a quick check, seems to work again.  Will report again if there
> >>are problems.
> >>
> >>How about the patch that IOhannes submitted a while aback making the
> >>the astraction-canvas use the prefix and classname?  That is also
> >>important since it puts objects written in Pd on the same footing at
> >>C objects.
> >>
> >>http://sourceforge.net/tracker/index.php?
> >>func=detail&aid=1403917&group_id=55736&atid=478072
> >>
> >>.hc
> >>
> >>On Oct 25, 2006, at 5:39 PM, Miller Puckette wrote:
> >>
> >>>This should now be fixed in CVS (branch stable_0_40)...
> >>>
> >>>cheers
> >>>Miller
> >>>
> >>>On Fri, Oct 13, 2006 at 05:19:00PM -0400, Hans-Christoph Steiner
> >>>wrote:
> >>>>
> >>>>I was just looking into the new canvas-based env and [declare]
> >>>>stuff.  The canvas-specific path stuff is definitely a step in the
> >>>>right direction.  But as it is now, namespace prefixes are totally
> >>>>broken.   It is no longer possible to use [prefix/classname]  
> >>>>syntax,
> >>>>which is essential to the namespaces because it is the only way  
> >>>>that
> >>>>two classes with the same root classname could be used in the same
> >>>>patch, i.e. like this, where each object is a different class:
> >>>>
> >>>>[prepend]
> >>>>[cxc/prepend]
> >>>>[cyclone/prepend]
> >>>>
> >>>>This is because with the new sys_onloadlist() functionality that
> >>>>checks to see whether a class has already been loaded.  It only  
> >>>>uses
> >>>>the direct classname, not the prefix also.
> >>>>
> >>>>.hc
> >>>>
> >>>>------------------------------------------------------------------- 
> >>>>--
> >>>>---
> >>>>
> >>>>"[W]e have invented the technology to eliminate scarcity, but we  
> >>>>are
> >>>>deliberately throwing it away to benefit those who profit from
> >>>>scarcity."        -John Gilmore
> >>>>
> >>>>
> >>>>
> >>>>_______________________________________________
> >>>>PD-dev mailing list
> >>>>PD-dev at iem.at
> >>>>http://lists.puredata.info/listinfo/pd-dev
> >>
> >>
> >>--------------------------------------------------------------------- 
> >>---
> >>
> >>The arc of history bends towards justice.     - Dr. Martin Luther
> >>King, Jr.
> >>
> 
> 
> ------------------------------------------------------------------------
> 
> Man has survived hitherto because he was too ignorant to know how to  
> realize his wishes.  Now that he can realize them, he must either  
> change them, or perish.    -William Carlos Williams
> 




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