• Home
• com.tethys-json
• tethys-core_3
• 0.29.1
• source code
• StringEnumJsonReader.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.

tethys.StringEnumJsonReader.scala Maven / Gradle / Ivy

package tethys

import tethys.readers.{FieldName, ReaderError}
import tethys.readers.tokens.TokenIterator

trait StringEnumJsonReader[A] extends JsonReader[A]

object StringEnumJsonReader:
  inline def derived[A <: scala.reflect.Enum]: StringEnumJsonReader[A] =
    new StringEnumJsonReader[A]:
      def read(it: TokenIterator)(implicit fieldName: FieldName): A =
        if it.currentToken().isStringValue then
          val res = it.string()
          it.next()
          try derivation.EnumCompanion.getByName[A](res)
          catch
            case ex: NoSuchElementException =>
              ReaderError.wrongJson(s"Unknown enum name: $res")
        else
          ReaderError.wrongJson(
            s"Expected string value but found: ${it.currentToken()}"
          )