🚀 go-pugleaf

there was some discussion recently about copying objects. barmar
appears not to like the idea over much.

there are good points and bad points. a good point is that it's
actually fairly easy. a bad point is that it's not going to be easy to
bypass the create and setf (and before/after) methods if you need to.

I have code to do the copying. it works quite well, and there's an
extra control so that you can avoid copying slots (by name) if there's
a reason to do so (believe me, there will be). it's smart enough not
to make new copies of things already copied and referenced different
places. I use it all the time on my current project. it's not
completely generalized regarding when not to copy things, and I won't
swear that it copies all possible lisp objects (i don't work with
hash-tables, so I don't know if it can handle them...other things
likewise). 

be happy to give a copy of my code to anyone...

 -- clint
--

Clint Hyde		"Give me a LispM or give me death!" -- anonymous

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