zio-prelude | distinctly Scala take on functional abstractions | Functional Programming library

package animalworld

import scala.collection.mutable

class Builder(val properties: mutable.HashMap[String, Any]) {

  def this() = this(mutable.HashMap.empty)

  def withName(name: String): Builder = {
    properties.put("name", name)
    this
  }

  def withAge(age: Int): Builder = {
    properties.put("age", age)
    this
  }

  def setProperty(key: String, value: Any): Builder = {
    properties.put(key, value)
    this
  }

  def build[A <: Animal](implicit buildable: Buildable[A]): A =
    buildable.build(this)
}