Proposal: Make amap an IArray method

Carter Schonwald carter.schonwald at gmail.com
Fri Nov 14 22:07:18 UTC 2014


amap :: (IArray <Data-Array-IArray.html#t:IArray> a e', IArray
<Data-Array-IArray.html#t:IArray> a e, Ix
<../base-4.7.0.1/Data-Ix.html#t:Ix> i) => (e' -> e) -> a i e' -> a i e

this looks like map. just with a class constraint. I dont buy that theres
any ROI for putting it into the class at all.
By the same arguement, map and fold in Vector should be part of the class.

-1

On Fri, Nov 14, 2014 at 4:30 PM, David Feuer <david.feuer at gmail.com> wrote:

> I realized what I wrote about amap earlier was utterly boneheaded, because
> it has the wrong type for fmap. The only way to accomplish my goal is to
> make Data.Array.IArray.amap a method of the IArray class. This will allow
> IArray instances to offer optimized versions and things like amap/coerce
> rules. The current implementation of amap can become the default one.
>
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