On Wed 27 Apr 2011 08:56, "Aaron W. Hsu" <arcfide@sacrideo.us> writes: > On Sat, 23 Apr 2011 20:14:33 -0400, Andre van Tonder <andre@het.brown.edu> > wrote: > >> In otehr words, definitions introduced in macros can possibly shadow >> toplevel >> bindings, which is a major obstacle to safe hygienic macro programming. > > More than a major obstacle, I would argue that this violates hygiene and > should not be allowed in Scheme's hygienic macros. I would still appreciate pointers as to how to implement this ;-) Anyone can implement Scheme, but only half a dozen people have implemented separate compilation with hygienically introduced toplevel bindings. Andy -- http://wingolog.org/ _______________________________________________ Scheme-reports mailing list Scheme-reports@scheme-reports.org http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports