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• rojoma-json-v3_2.13
• 3.15.0
• source code
• DownCaster.scala

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com.rojoma.json.v3.-impl.ast.DownCaster.scala Maven / Gradle / Ivy

package com.rojoma.json.v3
package `-impl`.ast

import ast._

class DownCaster[T <: JValue](private val x: T) extends AnyVal {
  def cast[U <: T](implicit j: Json[U]): Option[U] = {
    if(j.jsonTypes(x.jsonType)) Some(x.asInstanceOf[U])
    else None
  }
}