[ ghc-Bugs-904512 ] hiding does not follow haskell report

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Bugs item #904512, was opened at 2004-02-25 12:15
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Category: Compiler
Group: 6.0.1
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: hiding does not follow haskell report

Initial Comment:
Email: mdg at wanadoo.fr

As understand hiding from the Haskell report, it should
hide only the unqualified name and not the qualified name,
e.g., hide head but not Prelude.head (or List.head).  This
is not the case with ghc 6.0.1:

mdg at mdglt:/bug-2111> cat Main.hs 
module Main where

import Prelude hiding (head)

main = do print (Prelude.head [0..])
          head

head = print "head"

mdg at mdglt:/bug-2112> ghc --version        
The Glorious Glasgow Haskell Compilation System,
version 6.0.1

mdg at mdglt:/bug-2113> ghc -fglasgow-exts -o Main --make Main
Chasing modules from: Main
Compiling Main             ( Main.hs, ./Main.o )

Main.hs:5: Variable not in scope: `Prelude.head'

mdg at mdglt:/bug-2114> ghc -o Main --make Main               
Chasing modules from: Main
Compiling Main             ( Main.hs, ./Main.o )

Main.hs:5: Variable not in scope: `Prelude.head'
mdg at mdglt:/bug-2115> runhugs Main
0
"head"

as expected.


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