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• 5.0.0-RC6
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.uniform.common-web_2.12.5.0.0-RC6.source-code.Codec.scala Maven / Gradle / Ivy

package ltbs.uniform
package common.web
import cats.implicits._

trait Codec[A]{
  def encode(in: A): Input
  def decode(out: Input): Either[ErrorTree,A]

  def imap[B](f: A => B)(g: B => A): Codec[B] =
    simap[B](f(_).asRight)(g)

  def simap[B](f: A => Either[ErrorTree,B])(g: B => A): Codec[B] = {
    val orig = this

    new Codec[B] {
      def encode(in: B): Input = orig.encode(g(in))
      def decode(out: Input): Either[ErrorTree,B] = orig.decode(out) >>= f
    }
  }

}