#2400: location-dependent scope issue with ghci.conf
------------------------+---------------------------------------------------
Reporter: claus | Owner:
Type: bug | Status: new
Priority: normal | Component: GHCi
Version: 6.9 | Severity: normal
Keywords: | Testcase:
Architecture: Unknown | Os: Windows
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I recently noticed some of my `ghci.conf` commands going wrong in newer
GHCis, and have now reduced the issue to this tiny example, which ceases
to work when moved from a locally sourced script to the main `ghci.conf`
location:
{{{
$ cat $HOME/.ghci
cat: /home/cr3/.ghci: No such file or directory
$ cat ./.ghci
cat: ./.ghci: No such file or directory
$ cat /cygdrive/c/Documents\ and\ Settings/cr3/Application\
Data/ghc/ghci.conf
let { msg () = "done" ; grep _ = return $ unlines ["let x=()","putStrLn
(msg x)"] }
:def grep grep
$ cat U.hs
$ /cygdrive/c/ghc/ghc-6.9.20080514/bin/ghcii.sh U.hs
GHCi, version 6.9.20080514: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( U.hs, interpreted )
Ok, modules loaded: Main.
*Main> :grep x
<interactive>:1:10: Not in scope: `msg'
*Main> msg ()
<interactive>:1:0: Not in scope: `msg'
*Main> :q
Leaving GHCi.
$ cp /cygdrive/c/Documents\ and\ Settings/cr3/Application\
Data/ghc/ghci.conf .
$ cat ghci.conf
let { msg () = "done" ; grep _ = return $ unlines ["let x=()","putStrLn
(msg x)"] }
:def grep grep
$ /cygdrive/c/ghc/ghc-6.9.20080514/bin/ghcii.sh U.hs -ignore-dot-ghci
GHCi, version 6.9.20080514: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( U.hs, interpreted )
Ok, modules loaded: Main.
*Main> :grep
unknown command ':grep'
use :? for help.
*Main> :cmd readFile "ghci.conf"
*Main> :grep x
done
*Main> msg ()
"done"
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2400>
GHC <http://www.haskell.org/ghc/>
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