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• Function.scala

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monocle.std.Function.scala Maven / Gradle / Ivy

package monocle.std

import monocle.Iso

object function extends FunctionOptics

trait FunctionOptics {
  final def flip[A, B, C]: Iso[A => B => C, B => A => C] =
    Iso(flipped[A, B, C])(flipped)

  final def flipped[A, B, C]: (A => B => C) => (B => A => C) =
    f => a => b => f(b)(a)
}