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• tethys-core_2.13
• 0.29.3
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• SelectingJsonReader.scala

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tethys.readers.instances.SelectingJsonReader.scala Maven / Gradle / Ivy

package tethys.readers.instances

import tethys.JsonReader
import tethys.readers.FieldName
import tethys.readers.tokens.TokenIterator

class SelectingJsonReader[A, B](simpleJsonReader: SimpleJsonReader[A])(
    selector: A => JsonReader[_ <: B]
) extends JsonReader[B] {

  override def read(it: TokenIterator)(implicit fieldName: FieldName): B = {
    val it1 = it.collectExpression()
    val it2 = it1.copy()
    selector(simpleJsonReader.read(it1)).read(it2)
  }
}