GADT record with polytype argument causes irrefutable pattern failure in basicTypes/MkId.lhs
data GADTRecordPoly a n where
G {val :: a} :: GADTRecordPoly a (forall n . n)
causes
- ** Exception: basicTypes/MkId.lhs:642:8-70: Irrefutable pattern failed for pattern Maybes.Succeeded refinement
when loaded in GHCi
Trac metadata
Trac field | Value |
---|---|
Version | 6.8.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |