gistfile1.scala

object Elvis {
  
  private class ElvisNull extends RuntimeException

  final class ElvisAny[T](val value: T) extends Proxy {
      def self: Any = value
      def ? : T = if( value==null ) throw new ElvisNull else value

      def :| (func: =>T): T = {
        try { 
          return func 
        } catch { 
          case e:ElvisNull=> 
            return value
        } 
      }
    
      // def ?[R] ( func: (T=>R) ) : Option[R] = if( value==null ) None else Some(func(value))
  }

  implicit def ElvisAnyWrapper[T](x: T) = new ElvisAny(x)
  
  implicit def opt[T](func: => T): Option[T] = {
    try { 
      return Some(func)
    } catch { 
      case e:ElvisNull=> 
        return None
    } 
  }
  
}
import Elvis._

var x = "hello"

"not set" :| x.?

0 :| x.?.length 

x = null

"not set" :| x.?

0 :| x.?.length 

// Implicitly convert to an Option
x.?.length.getOrElse(100)