aslakhellesoy

package lambdas;

import sun.reflect.ConstantPool;

import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class TypeTest {
    @FunctionalInterface

viktorklang

object Scala extends App {
  import scala.collection.mutable.ArrayBuffer
  import scala.annotation.tailrec
  val items = List("foo", 23, true)
  val before = System.currentTimeMillis()
  @tailrec def adds(n: Int, absoluteResult: ArrayBuffer[Any] = ArrayBuffer()): ArrayBuffer[Any] = {
      def foo(obj : Any) = obj match {
          case _:String => "String"
          case _:Boolean => "Boolean"
          case _:Integer => "Integer"

sadache

If your csv doesn't contain escaped newlines then it is pretty easy to do a progressive parsing without putting the whole file into memory. The iteratee library comes with a method search inside play.api.libs.iteratee.Parsing :

def search (needle: Array[Byte]): Enumeratee[Array[Byte], MatchInfo[Array[Byte]]]

which will partition your stream into Matched[Array[Byte]] and Unmatched[Array[Byte]]

Then you can combine a first iteratee that takes a header and another that will fold into the umatched results. This should look like the following code:

// break at each match and concat unmatches and drop the last received element (the match)

jonifreeman

object Sql {
  import scala.reflect.makro._
  import language.experimental.macros

  case class Query[R](/*sql: String*/)

  def execute[R](q: Query[R]): Seq[R] = sys.error("implement me")

  def sqlImpl(c: Context)(s: c.Expr[String]): c.Expr[Any] = {
    import c.universe._

mandubian

"copy file" in {
  var i = 0
  val fileGenerator = Enumerator.fromCallback( () => 
    if(i<1000){ i+=1; Future.successful(Some((new java.util.Date).getTime.toString + "\n")) } else Future(None) 
  )

  val f = FileChannel("/tmp/testwrite.txt").delete.writing.create
  val f2 = FileChannel("/tmp/testwrite2.txt").delete.writing.create

  fileGenerator                                     // generates data

tonymorris

// Missing support libraries
object MissingLibraries {
  case class State[S, +A](run: S => (A, S))  {
    def map[B](f: A => B): State[S, B] =
      State(s => {
        val (a, t) = run(s)
        (f(a), t)
      })

    def flatMap[B](f: A => State[S, B]): State[S, B] =

tonymorris

trait Semigroup[A] {
  def op(a1: A, a2: A): A
}

trait Monoid[A] extends Semigroup[A] {
  def id: A
}

object Monoid {
  implicit def ListMonoid[A]: Monoid[List[A]] =

rokgerzelj

# to install the latest stable version:
brew install play

# to install play-2.1-RC2:
brew install https://raw.github.com/gist/4485598/play.rb

# to switch versions (from https://github.com/mxcl/homebrew/wiki/External-Commands):
brew switch play 2.0.4
brew switch play 2.1-RC2

bigtoast

# to install the latest stable version:
brew install play

# to install play-2.1-RC3:
# if you already have a version of play installed you will need to unlink it.
brew unlink play
brew install https://raw.github.com/gist/4675514/play.rb

# to switch versions (from https://github.com/mxcl/homebrew/wiki/External-Commands):
brew switch play 2.0.4

asflierl

Welcome to Scala version 2.10.0 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_11).
Type in expressions to have them evaluated.
Type :help for more information.

scala> trait Meep { type Moop; def f: Moop }
defined trait Meep

scala> def fnord(a: Meep): a.Moop = a.f
fnord: (a: Meep)a.Moop