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higher-kinded-types

Allows for higher-kinded generic types in F# (a.k.a. 'M<'T>) through the use of some compiler tricks.

Inspired by https://github.com/palladin/Higher/. This library attempts to be more accessible to those less familiar with the subject, but is far less mature in it's capabilities

usage

open HigherKindedTypes
...
let avg x y = (x + y) / 2.
let pairwiseAverage xs ys = 
  Collection.zip xs ys
  |> Functor.map avg

let lstXs = [1. .. 3.]
let lstYs = [3. .. 5.]

let ans = //ans is List<double> at compile-time
  pairwiseAverage (lstXs |> List.toHigherKindedType) (lstYs |> List.toHigherKindedType)
  |> List.fromHigherKindedType

let arXs = [|1. .. 3.|]
let arYs = [|3. .. 5.|]

let ans = //ans is Array<double> at compile-time
  pairwiseAverage (lstXs |> Array.toHigherKindedType) (lstYs |> Array.toHigherKindedType)
  |> Array.fromHigherKindedType

methodology

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