#4478: Exporting the same entity twice should not be a warning
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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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Comment(by isaacdupree):
Probably iff the name isn't mentioned explicitly at all, only through
module re-exports, then there shouldn't be a warning here.
If you said (..., module Data.List, module Data.List) then there could
still sensibly be a warning for saying you're exporting the same
''module'' twice (which exists: "{{{Warning: Duplicate `Module Data.List'
in export list}}}" and which already skips the individual duplicate
warnings in this case).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4478#comment:2>
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