wrong warning for exporting all constructors of a void type
{-# LANGUAGE EmptyDataDecls #-}
module WrongExportWarning (Empty(..)) where
data Empty
produces the incorrect warning:
WrongExportWarning.hs:3:27:
Warning: The export item `Empty(..)'
suggests that `Empty' has constructor or class methods
but it has none; it is a type synonym or abstract type or class
If this was already fixed, I state in my defense that trac's search sucks.
Trac metadata
Trac field | Value |
---|---|
Version | 6.6 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Unknown |
Architecture | Unknown |