Re: [Haskell-cafe] Design your modules for qualified import

"Johan Tibell" <johan.tibell@gmail.com> writes:

Duncan's recommendation of just taking the part after the last dot seems like a good rule of thumb. Doing

import qualified Data.Map as M

does gain you much in my opinion. Compare M.empty to emptyM. No difference, you still can't deduce the module by just looking at the call site.

I would prefer `M.empty' to `emptyM'. At least, by looking at `M.empty', you know that this `empty' is from `M' and you can easily check out what `M' is from the import list. I personally always found myself unproductively tracing back something like `emptyM' to its origin.

Cheers,

Johan

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