http://code.google.com/p/pharo/issues/list?thanks=1789
I do not understand why we need deepCopy and why deepCopy does not implement the veryDeepCopy semantics? On Jan 12, 2010, at 1:41 PM, Levente Uzonyi wrote: >> - #copy is the normal copy operation. It should be used by default and >> never overridden. It calls #postCopy that can be overridden to have >> class specific copy semantics. >> >> - #shallowCopy does a shallow copy. It should never be overridden and >> only be used if you want to get these very specific semantics. >> >> - #deepCopy does a deep copy. It should never be overridden and only >> be used if you want to get these very specific semantics. > > It doesn't handle cycles, #veryDeepCopy does. > >> >> - #clone comes from eToys and Morphic (AFAIK). It implements some >> other copy semantics than #copy. I don't think that anybody should >> call this method, other than code that depends on this particular copy >> behavior. >> > > From Morphic. > > > Levente > >> This is exactly the same problematic as with #=. There can't be just >> one #=. Other clients might consider other things when comparing >> objects. _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
