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  • #9922

Closed
Open
Opened Dec 24, 2014 by Krzysztof Gogolewski@monoidalDeveloper

Partial type signatures + extensions panic

Partial type signatures combined with the following GHC extensions cause a panic:

class C a where default f :: _       -- DefaultSignatures

instance Num Bool where negate :: _  -- InstanceSigs

deriving instance _                  -- StandaloneDeriving
Trac metadata
Trac field Value
Version 7.9
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler (Type checker)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC thomasw
Operating system
Architecture
Assignee
Assign to
7.10.1
Milestone
7.10.1 (Past due)
Assign milestone
Time tracking
None
Due date
None
Reference: ghc/ghc#9922