• Home
• com.malliina
• primitives_sjs1_3
• 3.1.0
• source code
• Readable.scala

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

com.malliina.values.Readable.scala Maven / Gradle / Ivy

package com.malliina.values

trait Readable[R] {
  def read(key: String): Either[ErrorMessage, R]
  def map[S](f: R => S): Readable[S] = (s: String) => read(s).map(f)
  def flatMap[S](f: R => Either[ErrorMessage, S]): Readable[S] = (s: String) => read(s).flatMap(f)
}

object Readable {
  implicit val string: Readable[String] = (s: String) => Right(s)
  implicit val email: Readable[Email] = string.map(Email.apply)
}