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From: alanr@chopin.media-lab.media.mit.edu (Alan Ruttenberg)
Newsgroups: comp.lang.lisp
Subject: scope question
Message-ID: <ALANR.91Jun14122852@chopin.media-lab.media.mit.edu>
Date: 14 Jun 91 17:28:52 GMT
Sender: news@news.media.mit.edu (USENET News System)
Organization: MIT Media Laboratory
Lines: 18


I have a question about the interaction of flet and macrolet.

(defun foo () ''outside)
(flet ((foo () ''inside)) (macrolet ((bar () (foo))) (bar)))

Should this return a) 'outside b) 'inside c) signal an error

I've convinced myself that it shouldn't return 'inside. Reasoning:
Flet binds, at run time, the local function foo. Macrolet is expanded
at compile time, so the function is not yet available. If one writes instead
(flet ((foo () ''inside)) (macrolet ((bar () '(foo))) (bar))), then it makes 
sense to return 'inside.

But I'm not sure about whether it should return 'outside. I vote yes, and
a friend votes no.

-alan