On 2009 Jan 16, at 11:23, Bulat Ziganshin wrote:
Friday, January 16, 2009, 7:07:09 PM, you wrote:
  instance Eq RuleType

this is very common error. it would be great to find some way to deal
with it (for predefined classes at very least...)



It wouldn't catch everything, but might it make sense to output a warning on empty instance declarations?

--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [email protected]
system administrator [openafs,heimdal,too many hats] [email protected]
electrical and computer engineering, carnegie mellon university    KF8NH


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