Cameron Pulsford wrote:
> Is there a way to do this? Besides cleaning up function signatures is
> this a premature optimization to begin with?
>
> (declare *macros*)
>
> (defn macro-expand [tokens]
> (map #(get *macros* % %) tokens))
>
> (defn compile-op [op]
> (macro-expand op))
>
> (defn assemble [{:keys [macros syms blks fncs]}]
> (binding [*macros* macros] ;; I thought binding would handle this,
> but I must be misusing it
> (let [compiled-ops (map compile-op fncs)]
> compiled-ops)))
Your problem is that compiled-ops is a lazy sequence, and it only gets
realised when it's used, which probably happens after it has exited
the dynamic scope where *macros* is bound.
You can work around the problem by forcing the sequence with doall or
by using bound-fn* to save the dynamic environment (ie. (map (bound-
fn* compile-op) fns), though double check that from the docs)
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