Syntax error with qualified name in import hiding list

[Neil Mitchell]

The following code raises a parse error with HSE but is accepted by GHC:

module Main where
import Foo hiding (Bar.bar)
main = print "hlint"

The original bug report is at http://code.google.com/p/ndmitchell/issues/detail?id=200

I don't have any opinion on this feature, but since the source of the issue is in HSE it seems sensible for HLint to track the bug here. Perhaps the GHC developers need to be asked where this feature came from.

[nibro]

Just to note, I see no reason why the listed syntax should be allowed by any implementation. I can't see any reasonable use, and breaks the abstraction with regards to reexporting names from other modules. Unless the GHC people give a very good reason for its adoption, I would rather see this reported as a bug with GHC, for being too permissive.

[nibro]

This has been branded a bug in GHC, and should no longer work in 6.21 (HEAD).