#2715: GHC panic
----------------------+-----------------------------------------------------
Reporter: rodprice | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.10.1
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86
Os: Linux |
----------------------+-----------------------------------------------------
Changes (by simonpj):
* difficulty: => Unknown
Comment:
Ah, you are using an equality predicate in the superclass context
{{{
class (Value d1 ~ Value d2) => IIDomain d1 d2 where
}}}
This specifically does not work in 6.10; it's the major unfinished piece
in the type-family story.
Really GHC 6.10 should simply reject such programs. As it stands, it has a
half-baked go at it.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2715#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler_______________________________________________
Glasgow-haskell-bugs mailing list
Glasgow-haskell-bugs@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
