[GHC] #13009: Hierarchical Module Structure for GHC

[GHC]

#13009: Hierarchical Module Structure for GHC
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        Reporter:  hsyl20            |                Owner:  hsyl20
            Type:  task              |               Status:  patch
        Priority:  low               |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3647
       Wiki Page:                    |
  ModuleDependencies/Hierarchical    |
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Comment (by hsyl20):

 The discussion about the renaming has started on Phab. I'm copying it
 here.

 simonpj: For example, I'd like to remove the IR/ level, and just have Cmm,
 Core etc. It doesn't pay its way in my view.

 simonmar: I agree with @simonpj that IR should go away for example.

 me:
 Considering the proposed hierarchy, I have been loosely following the old
 proposal on the wiki (ModuleDependencies/Hierarchical) but adapted it.
 I have iterated quite a few times and indeed I started without the IR
 level but it felt wrong for GHC.Haskell (isn't GHC all about Haskell?) and
 GHC.Core ("core" is misleading and I wouldn't think it is an IR if I
 wouldn't already know it is). Moreover I didn't want to pollute too much
 the top-level.

 In general I have tried to make module names meaningful and unambiguous,
 even to someone that is first exposed to them. For instance, just by
 looking at the outline (e.g., see current Haddock on
 http://hsyl20.fr/ghc_doc/), even if we don't know what FloatOut is, we
 know it's a transformation on Core IR.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13009#comment:6>
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