#1754: Border case type families/type equality coercions cause the impossible to
happen
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Reporter: guest | Owner: chak
Type: bug | Status: new
Priority: normal | Milestone: 6.10 branch
Component: Compiler | Version: 6.8
Severity: normal | Resolution:
Keywords: type family equality coercion | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Linux |
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Comment (by chak):
Replying to [comment:5 guest]:
> Replying to [comment:4 igloo]:
> > Thanks for the report. This stuff is unsupported in the 6.8 branch, so
won't be fixed until 6.10.
> I assume this means that future type family bugs should be marked with
Version:6.9? (After testing that the bug isn't fixed yet in 6.9, of
course.)
I am pretty sure it is in 6.9, too. It's on my list of things to fix.
I'll let you know once I think it is fixed.
> P.S. Perhaps it's a good idea to have a
ExperimentalUnsupportedPanickingFeature warning?
Yes, maybe, but only on the branch. In any case, thanks for testing this
stuff. This is very helpful!
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1754#comment:7>
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