On Fri, 11 Sep 2009, Shiro Kawai wrote:

> What if imported 'foo' was a macro/syntax?

This is when it becomes interesting (in the sense of the curse).  What if a 
macro binding is later redefined to be a procedure, or vice versa?  If one 
allows this kind of thing (as one probably wants to in a REPL) one gets 
situations where the usual toplevel visibility rule starts to break down.

Andre

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