On Thu, Nov 15, 2012 at 5:24 PM, Ludovic Courtès <ludo@gnu.org> wrote:

Hi Stefan!

Stefan Israelsson Tampe <stefan.itampe@gmail.com> skribis:

> --- a/module/language/tree-il/cse.scm
> +++ b/module/language/tree-il/cse.scm
> @@ -324,10 +324,11 @@

> (and (< n env-len)
> (match (vlist-ref env n)
> ((#(exp* name sym db-len*) . h*)

> - (and (unroll db m (- db-len db-len*))
> - (if (and (= h h*) (tree-il=? exp* exp))
> - (make-lexical-ref (tree-il-src exp) name sym)
> - (lp (1+ n) (- db-len db-len*))))))))))))
> + (let ((niter (- (- db-len db-len*) m)))
> + (and (unroll db m (- db-len db-len*))
> + (if (and (= h h*) (tree-il=? exp* exp))
> + (make-lexical-ref (tree-il-src exp) name sym)
> + (lp (1+ n) (- db-len db-len*)))))))))))))
>
> (define (lookup-lexical sym env)
> (let ((env-len (vlist-length env)))

Hmm, the only thing it changes is that an unused variable is introduced,
no? Am I missing something?

Thanks,
Ludo’.