GHC missreports import as redundant.
In the following code GHC claims the first import is redundant.
import Data.Map (Map)
import qualified Data.Map as M
type MT = Map
test.hs:5:1: warning: [-Wunused-imports]
The qualified import of `Data.Map' is redundant
except perhaps to import instances from `Data.Map'
To import instances alone, use: import Data.Map()
|
5 | import qualified Data.Map as M
Reproduceable on 8.4 and HEAD at least.
Trac metadata
Trac field | Value |
---|---|
Version | 8.6.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |