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@viktorklang
viktorklang / ScalaEnum.scala
Created June 30, 2011 23:12
DIY Scala Enums (with optional exhaustiveness checking)
trait Enum { //DIY enum type
import java.util.concurrent.atomic.AtomicReference //Concurrency paranoia
type EnumVal <: Value //This is a type that needs to be found in the implementing class
private val _values = new AtomicReference(Vector[EnumVal]()) //Stores our enum values
//Adds an EnumVal to our storage, uses CCAS to make sure it's thread safe, returns the ordinal
private final def addEnumVal(newVal: EnumVal): Int = { import _values.{get, compareAndSet => CAS}
val oldVec = get
import java.util.Arrays;
import java.util.List;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Function;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.commonjs.module.Require;
import org.mozilla.javascript.tools.shell.Global;
@momania
momania / gist:858476
Created March 7, 2011 13:05
Akka AMQP Loadbalance
import akka.amqp.AMQP._
import akka.amqp._
import akka.actor._
import java.util.concurrent.{TimeUnit, CountDownLatch}
import util.Random
object LoadBalancingDemo {
def main(args: Array[String]) {
@retronym
retronym / low-priority-implicits.scala
Created November 7, 2009 13:00
Scala 2.8 implicit prioritisation, as discussed in: http://www.scala-lang.org/sid/7
object Low {
def low = "object Low"
def shoot = "missed!"
}
object High {
def high = "object High"
def shoot = "bulls eye!"
}