Re: Bug with macros in SCM and Guile

[Kevin Ryde]

Aubrey Jaffer <address@hidden> writes:
>
>  | From: Marc Feeley <address@hidden>
>  | Date: Wed, 29 Nov 2006 15:58:57 -0500
>  | 
>  | For SCM it seems that a macro call is normally expanded when an  
>  | expression is encountered in a top-down traversal of the code, but  
>  | not always.  For example, in the function bar2 below the macro call  
>  | to foo is expanded when bar2 is *called*, and at that point a new  
>  | definition of the macro foo has been introduced.

I thought that was the idea for defmacro, to expand when it runs, and
in fact to re-expand every time it's run.  A little wasteful, but it's
emulating lisp style (or is it just emacs-lisp style) in that isn't
it?