[Haskell-cafe] about import alias

Marcin Kosiba marcin.kosiba at gmail.com
Sat Apr 4 11:42:48 EDT 2009

On Saturday 04 April 2009, Manlio Perillo wrote:
> Hi.
> Haskell 98 allows import alias:
>      import qualified VeryLongModuleName as C
> however it does not allow aliasing for imported names
>      import NormalModule (veryLongFunctionName as C)
> what is the rational?
> IMHO this can be very useful in some cases.

While I do agree with the argument that it could be useful in some cases, 
misuse of this feature would cause a lot of confusion, consider:

from System.IO.Unsafe import (unsafePerformIO as safe)

I think that the alias feature is OK, when the namespace is long, 
longfunctionnameswhichareapaintoreadandespeciallywrite are a bug and should 
be treated and fixed by the owner of that code, not by the user.

If very function names are that much of a problem to you consider a wrapper 
	Marcin Kosiba
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