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58 lines
1.9 KiB
Idris
58 lines
1.9 KiB
Idris
module Data.Zippable
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%default total
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---------------------------
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-- Zips and unzips --
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---------------------------
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||| The `Zippable` interface describes how you can combine and split the
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||| elements in a parameterised type.
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||| @ z the parameterised type
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public export
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interface Zippable z where
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||| Combine two parameterised types by applying a function.
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||| @ z the parameterised type
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||| @ func the function to combine elements with
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zipWith : (func : a -> b -> c) -> z a -> z b -> z c
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||| Combine two parameterised types into a parameterised type of pairs.
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||| @ z the parameterised type
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zip : z a -> z b -> z (a, b)
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zip = zipWith (,)
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infixr 6 `zip`
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||| Combine three parameterised types by applying a function.
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||| @ z the parameterised type
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||| @ func the function to combine elements with
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zipWith3 : (func : a -> b -> c -> d) -> z a -> z b -> z c -> z d
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||| Combine three parameterised types into a parameterised type of triplets.
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||| @ z the parameterised type
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zip3 : z a -> z b -> z c -> z (a, b, c)
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zip3 = zipWith3 (,,)
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||| Split a parameterised type by applying a function into a pair of
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||| parameterised types.
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||| @ z the parameterised type
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||| @ func the function to split elements with
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unzipWith : (func : a -> (b, c)) -> z a -> (z b, z c)
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||| Split a parameterised type of pairs into a pair of parameterised types.
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||| @ z the parameterised type
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unzip : z (a, b) -> (z a, z b)
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unzip = unzipWith id
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||| Split a parameterised type by applying a function into a triplet of
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||| parameterised types.
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||| @ z the parameterised type
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||| @ func the function to split elements with
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unzipWith3 : (func : a -> (b, c, d)) -> z a -> (z b, z c, z d)
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||| Split a parameterised type of triplets into a triplet of parameterised
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||| types.
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||| @ z the parameterised type
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unzip3 : z (a, b, c) -> (z a, z b, z c)
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unzip3 = unzipWith3 id
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