doma_witchcraft

1.0.5-doma

Monads and other dark magic (monoids, functors, traversables, &c), forked by doma for maintenance and testing packagesets

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doma_witchcraft lib witchcraft foldable tuple.ex

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lib/witchcraft/foldable/tuple.ex

import TypeClass

definst Witchcraft.Foldable, for: Tuple do
  def right_fold(tuple, seed, reducer) do
    index = tuple_size(tuple) - 1

    tuple
    |> elem(index)
    |> reducer.(seed)
  end
end

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