#5112: Incorrect warnings about unqualified imports being redundant
-------------------------------+--------------------------------------------
Reporter: sciolizer | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.0.2 | Keywords:
Testcase: | Blockedby:
Os: Linux | Blocking:
Architecture: x86_64 (amd64) | Failure: Incorrect warning at compile-time
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Mixing qualified and unqualified imports can confuse the compiler.
To reproduce:
Create the file BadWarning.hs.
{{{
module BadWarning where
import Data.Map
import qualified Data.Map as M
example = empty
}}}
Run `ghci -W BadWarning.hs`, and you get:
{{{
BadWarning.hs:4:1:
Warning: The import of `Data.Map' is redundant
except perhaps to import instances from `Data.Map'
To import instances alone, use: import Data.Map()
Ok, modules loaded: BadWarning.
}}}
This looks similar to #3992, but that bug does not repro for me, so I
think the issue is slightly different.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5112>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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