Re: [Openmcl-devel] Class redefinition demo

Many thanks Ron and Gary.

At 10:01 AM -0700 09/06/06, Ron Garret wrote:
>For those of you playing with RMCL, there's a bug that causes class 
>redefinition not to work properly.  Gary has produced a patch, which 
>is at
>
><ftp://clozure.com/pub/rmcl-upates>ftp://clozure.com/pub/rmcl-updates
>
>Because I'm allergic to FTP, a stripped-down version of the patch is 
>included in this email which you can just load into RMCL.  No need 
>to rebuild the app if you don't want to.
>
>This patch has allowed me to resurrect my favorite Lisp demo of all 
>time, which is also attached.  It's called draggable, and it's a 
>dramatic illustration of the power of class redefinition.  Load the 
>demo.  It will open a window with a bunch of text objects.  Click on 
>them and try to drag them around and observe that nothing happens. 
> Now evaluate the first of the commented-out lines at the bottom of 
>the file and try dragging them around again.  Now evaluate the 
>second line and repeat.
>
>Let's see someone do *that* in Python!
>
>Enjoy!
>
>rg
>
>
>Attachment converted: S:rmcl-clos-patch.lisp (TEXT/CCL2) (001B9759)
>
>Attachment converted: S:draggable.lisp (TEXT/CCL2) (001B975A)
>
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