#3850: EmptyDataDecls and type context
---------------------------------+------------------------------------------
Reporter: Paczesiowa | Owner: igloo
Type: merge | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.12.1
Keywords: emptydatadecls | Difficulty:
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: GHC rejects valid program
---------------------------------+------------------------------------------
Changes (by simonpj):
* owner: => igloo
* type: bug => merge
Comment:
OK well I still think it's stupid, but I accept that it's a needless
change in behaviour from 6.10, so I'll make 6.12 accept the declaration
just as 6.10 did. That way you won't have to change HList.
{{{
Mon Feb 8 16:37:51 GMT 2010 [email protected]
* Fix Trac #3850
This patch simply avoids a needless difference in behaviour from
6.10, and one that happens to affect HList. See Note [Stupid theta].
}}}
Please merge to 6.12 branch.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3850#comment:5>
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