#3858: the resolution of abbreviated commands in ghci is surprising.
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Reporter: Saizan | Owner:
Type: bug | Status: new
Priority: normal | Component: GHCi
Version: 6.12.1 | Keywords:
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: None/Unknown
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{{{
GHCi, version 6.12.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Prelude> :i True
data Bool = ... | True -- Defined in GHC.Bool
Prelude> :def ifoo \_ -> putStrLn "ifoo" >> return ""
Prelude> :i True
ifoo
}}}
It seems that abbreviations are resolved to the command, that matches the
prefix, which is defined last. I've found this behaviour very confusing in
practice.
I'd expect rebinding :i to some command that's not :info to require an
explicit declaration.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3858>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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