[plt-dev] `unsafe-fl' and unboxing

From: Eli Barzilay (eli at barzilay.org)
Date: Sun Oct 4 18:58:41 EDT 2009

On Oct  4, Dave Herman wrote:
> > No! 'identifier?' does not check whether a syntax object represents  
> > a variable reference, given 1) identifier macros and 2) #%top  
> > transformers for unbound variables. If you really, really want to  
> > check if something is a variable reference, 'local-expand' it and  
> > look at the result.
> Oh, yes, of course. All the more reason to hope mzscheme supports
> MWBoR. (Eli's email suggests it does.)

It does.

          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!

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