Explain use of make-rename-transformer.

Progress on issue #1.
This commit is contained in:
Greg Hendershott 2012-10-30 14:21:27 -04:00
parent 3011cec6fc
commit 209aa0fb7e

View File

@ -909,6 +909,10 @@ value:
(aif #f (displayln it) (void))
]
Inside the @racket[syntax-parameterize], @racket[it] acts as an alias
for @racket[tmp]. The alias behavior is created by
@racket[make-rename-transformer].
If we try to use @racket[it] outside of an @racket[aif] form, and
@racket[it] isn't otherwise defined, we get an error like we want: