[GHC] #2542: runghc does not infer module file extensions

[GHC]

#2542: runghc does not infer module file extensions
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 Reporter:  judah     |          Owner:  igloo  
     Type:  bug       |         Status:  new    
 Priority:  high      |      Milestone:  6.10.1 
Component:  Compiler  |        Version:  6.8.3  
 Severity:  normal    |     Resolution:         
 Keywords:            |     Difficulty:  Unknown
 Testcase:            |   Architecture:  Unknown
       Os:  Unknown   |  
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Comment (by simonmar):

 Yes, but that would be an exception.  There are currently two cases:

  * a module name: search for the source file using the normal search
 semantics
    (`-i` search path, hierarchical module names etc.), load compiled code
 if
    available, require the module name in the file to be correct.

  * a filename ending in `.hs` or `.lhs`, or missing the extension: load
    exactly that file, which can contain any module, and in GHCi ignore any
    compiled version.

 there would be an extra case, to come first:

  * for target `X`, if `X.hs` or `X.lhs` exists, load that file, which can
    contain any module, and in GHCi load compiled code if available.

 this would change the behaviour of `:load foo` (it would load compiled
 code, whereas `:load foo.hs` wouldn't).

 My main objection to this is that three cases feels like one too many to
 me.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2542#comment:6>
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