#4478: Exporting the same entity twice should not be a warning
---------------------------------+------------------------------------------
Reporter: kosmikus | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.3 | Keywords:
Testcase: | Blockedby:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: Incorrect warning at
compile-time
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Here is a minimal sample module:
{{{
module Warning (module Prelude, module Data.List) where
import Prelude
import Data.List
}}}
This module results in a lot of warnings like this one:
{{{
Warning.hs:1:33:
Warning: `foldl1' is exported by `module Data.List' and `module
Prelude'
}}}
However, in this case, both occurrences of the identifier
refer to the same entity `foldl1` that is defined in module
`Data.List`. In such a case, I do not think that a warning
should be reported.
Occurs with both 6.12.3 and 7.0.1. Haven't tested other versions.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4478>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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