[GHC] #8622: Importing modules in .ghci file doesn't work

[GHC]

#8622: Importing modules in .ghci file doesn't work
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        Reporter:  m4dc4p        |            Owner:
            Type:  bug           |           Status:  new
        Priority:  normal        |        Milestone:
       Component:  GHCi          |          Version:  7.6.3
      Resolution:                |         Keywords:
Operating System:  MacOS X       |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |       Difficulty:  Unknown
       Test Case:                |       Blocked By:
        Blocking:                |  Related Tickets:
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Changes (by simonpj):

 * cc: simonmar (added)


Comment:

 Actually this is by design.  You can only use `import` and `:module` for a
 module that either
  * is already loaded as part of the current program (`:show modules` tells
 you which ones are, I think), or
  * is a module of a visible package

 If you use `:load Macros` rather than `import Macros`, all is well.

 However, the [http://www.haskell.org/ghc/docs/latest/html/users_guide
 /interactive-evaluation.html user documentation] is not good on this
 point.  Notably, it says (2.4.5.1) that "You cannot add a module to the
 scope if it is not loaded".  But that's not true: you can also add (or
 `import`) any package module.

 Copying Simon M to check my statements here.  If correct, I'll update the
 documentation.

 Simion

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8622#comment:4>
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