Opened 10 years ago

Closed 10 years ago

Last modified 46 years ago

#443 closed bug (Fixed)

Unify.unifyTauTyLists: mismatched type lists!

Reported by: nobody Owned by: nobody
Priority: normal Milestone:
Component: Compiler Version: 6.4
Keywords: Cc:
Operating System: Architecture:
Type of failure: Test Case:
Blocked By: Blocking:
Related Tickets: Differential Rev(s):
Wiki Page:


the following simple code

data List elem =  Cons elem List | Nil

t1 :: List
t1 = Cons 1 Nil

causes (loaded within ghci):

ghc-6.4: panic! (the `impossible' happened, GHC version
	Unify.unifyTauTyLists: mismatched type lists!

Please report it as a compiler bug to
[email protected],

Change History (2)

comment:1 Changed 10 years ago by simonpj

Logged In: YES 

Good bug; already fixed for the upcoming 6.4.1 release. (Try 
the release candidate to confirm.)

comment:2 Changed 10 years ago by simonpj

  • Status changed from assigned to closed
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