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• rojoma-json-v3_2.11
• 3.15.0
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• GenericDownCaster.scala

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

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

import scala.reflect.ClassTag

class GenericDownCaster[T <: AnyRef](x : T) {
  def cast[U <: T : ClassTag]: Option[U] = {
    val cls = implicitly[ClassTag[U]].runtimeClass
    if(cls.isInstance(x)) Some(cls.cast(x).asInstanceOf[U])
    else None
  }
}