Sample non lambda instantiation

ParserInstance.kt

fun oldInstantiation() {
   val defaultParser = object : Parser{
      override fun parse(value: String): ParsedOutput {
         require(value.length > 4)
         ParsedOutput(value.substring(0, 3), value.substring(3, value.length))
      }
   } 
}

fun newInstantiation() {
    val defaultParser = Parser { value ->
        require(value.length > 4)
        ParsedOutput(value.substring(0, 3), value.substring(3, value.length))
    }
}