[plt-scheme] problem with match.ss and contracts

From: sam th (samth at ccs.neu.edu)
Date: Thu May 13 06:57:27 EDT 2004

On Wed, May 12, 2004 at 02:30:15PM -0400, Sam Tobin-Hochstadt wrote:
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> I'm using match.ss and contracts, and getting the following very strange 
> error:
> procedure application: expected procedure, given: 
> #<struct:flat-contract>; arguments were: ()
> On a bit of code that looks like this:
> (match-lambda*
>       [(...... (? string? key) ......) ....]

It turned out that the problem was in a different match-lambda clause, 
where I tried to use (listof string?) as a predicate.  However, it is 
definitely a bug that DrScheme points to the wrong place in the error.

sam th

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