id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
2049,GHCi doesn't fully load previously broken modules,ajd,igloo,"Scenario:

I have a project with three modules: Mod1, Mod2 and Mod3. Mod3 calls an undefined function and so shouldn't load. I call GHCi as

ghci Mod3.hs

The output looks like this:

 GHCi, version 6.8.2: http://www.haskell.org/ghc/  :? for help
 Loading package base ... linking ... done.
 [1 of 3] Compiling Mod1             ( Mod1.hs, interpreted )
 [2 of 3] Compiling Mod2             ( Mod2.hs, interpreted )
 [3 of 3] Compiling Mod3             ( Mod3.hs, interpreted )
 
 Mod3.hs:6:6: Not in scope: `foo'
 
 Mod3.hs:6:12: Not in scope: `barf'
 Failed, modules loaded: Mod2, Mod1.

The problem comes when I edit the file using GHCi's :e command and then reload with :r. The output looks like this (which is strange in itself, because the modules are listed in the wrong order):

 *Mod2> :r
 [3 of 3] Compiling Mod3             ( Mod3.hs, interpreted )
 Ok, modules loaded: Mod2, Mod3, Mod1.

The problem is this: when I call a function from Mod3 from the GHCi toplevel, I get a ""not in scope"" error. I can call the function as ""Mod3.<function name>"" but ""Mod3"" does not show up in GHCi's tab completion. I don't believe that this is the correct behavior.",merge,closed,normal,6.8.3,GHCi,6.8.2,fixed,,tora@…,Unknown/Multiple,Unknown/Multiple,,Unknown,,,,