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 |