Thanks Ross.<div><br></div><div>Does anyone know how to tackle this? Combining GHC&#39;s builtin arrow processor and rewrite rules?</div><div><br></div><div><div class="gmail_quote">On Wed, Apr 29, 2009 at 3:43 PM, Ross Paterson <span dir="ltr">&lt;<a href="mailto:ross@soi.city.ac.uk">ross@soi.city.ac.uk</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Wed, Apr 29, 2009 at 03:07:25PM +0200, Peter Verswyvelen wrote:<br>
&gt; After doing some pragmatic tests, it seems that neither the arrow preprocessor<br>
&gt; nor GHC&#39;s builtin one generate / optimize to the (***) combinator.<br>
<br>
</div>Right, neither of them do that.  It might be possible to do that using<br>
GHC rules, but it isn&#39;t done at the moment.<br>
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