On Apr 16, 2015, at 8:17 AM, Matthew Flatt <[email protected]> wrote:

> I don't think a "hygienic" reader extension works in the old expander,
> either. The `lambda` produced by the `afl` or `rackjure` reader doesn't
> reliably refer to the `lambda` from `racket/base`, because a local
> binding for `lambda` captures the reader-produced `lambda`:
> 
> #lang rackjure
> (let ([lambda 5])
>   #λ(+ % 1)) ; => unbound `%1`

I just solved this problem for afl! (with the current macro expander)
https://github.com/AlexKnauth/afl/commit/130216c2b85077aef893f7d0828d69394bceece7


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