[GHC] #2150: allow definition of functions in the interpreter

[GHC]

#2150: allow definition of functions in the interpreter
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    Reporter:  ahrivera         |       Owner:         
        Type:  feature request  |      Status:  new    
    Priority:  normal           |   Component:  GHCi   
     Version:  6.8.2            |    Severity:  normal 
    Keywords:                   |    Testcase:         
Architecture:  Unknown          |          Os:  Unknown
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 Right now, the only way to define functions is through the .hs files.
 Other interpreted languages such as Python allow the user to define
 functions in the command  line.  This is very helpful when one wants to
 prototype some quick functions.

 One way to do it could be to detect when one declares the function and
 then enable a mode where one can add definitions.  For example:

 Prelude> x:: Int ->Int[[BR]]

 *definition*> x a = a + 1[[BR]]

 *definition*>[[BR]]

 Prelude> x 10[[BR]]

 11[[BR]]

 Prelude>[[BR]]


 Please consider adding this functionality to GHCI.

 Thanks

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2150>
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