gistfile1.scala

Welcome to Scala version 2.10.4 (OpenJDK 64-Bit Server VM, Java 1.6.0_27).
Type in expressions to have them evaluated.
Type :help for more information.

scala> import rapture.json._; import jsonBackends.scalaJson._
import rapture.json._
import jsonBackends.scalaJson._

scala> class SpecialInt(val i: Int) extends AnyVal
defined class SpecialInt

scala> val myJson = json"""{ "value": 42 }"""
myJson: rapture.json.Json = {"value":42}

scala> myJson.value.as[SpecialInt]
res0: SpecialInt = SpecialInt@2a

scala> val newJson = json"""{ "output": $res0 }"""
newJson: rapture.json.Json = {"output":42}

scala> case class Foo(first: Int, second: SpecialInt)
defined class Foo

scala> json"""{ "first": 1, "second": 2 }""".as[Foo]
res2: Foo = Foo(1,SpecialInt@2)