strict field + type constructor of kind * -> * or higher causes ghc panic
Example:
data Foo = Foo
{ strictField :: ! IO [String] }
Remove the strictness annotation or put the type constructor in parentheses and it works!
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.6.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |