mpollmeier

object ValueClassDebug {
  class Foo

  class FooExtNormalClass(val foo: Foo) {
    def bar: Int = 42
  }

  implicit class FooExtImplicitClass(val foo: Foo) {
    def barViaImplicitClass: Int = 42
  }

mpollmeier

class Foo

implicit class FooExt(val foo: Foo) extends AnyVal {
  def bar = 42
}

// usage
val foo = new Foo
foo.bar // will not allocate FooExt

mpollmeier

import java.lang.ref.SoftReference;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.concurrent.ConcurrentLinkedDeque;

public class FinalizedTest {
  static final int count = 5000000;

  /**
   * to get usable output, run with e.g. `-Xms1g -Xmx1g -XX:SoftRefLRUPolicyMSPerMB=0`

mpollmeier

Keybase proof

I hereby claim:

• I am mpollmeier on github.
• I am mpollmeier (https://keybase.io/mpollmeier) on keybase.
• I have a public key whose fingerprint is EBB5 6E13 9386 4F9B 4747 9E14 E0A0 EE62 B24D 0836

To claim this, I am signing this object:

mpollmeier

mvn dependency:tree

[INFO] org.apache.tinkerpop:tinkergraph-gremlin:jar:3.2.5-SNAPSHOT
[INFO] +- org.apache.tinkerpop:gremlin-core:jar:3.2.5-SNAPSHOT:compile
[INFO] |  +- org.apache.tinkerpop:gremlin-shaded:jar:3.2.5-SNAPSHOT:compile
[INFO] |  +- commons-configuration:commons-configuration:jar:1.10:compile
[INFO] |  |  \- commons-lang:commons-lang:jar:2.6:compile
[INFO] |  +- org.yaml:snakeyaml:jar:1.15:compile
[INFO] |  +- org.javatuples:javatuples:jar:1.2:compile
[INFO] |  +- com.carrotsearch:hppc:jar:0.7.1:compile

mpollmeier

import shapeless._
import shapeless.poly._
import shapeless.ops.hlist._
import shapeless.UnaryTCConstraint._

object Util {
  case class Label[A](name: String, value: A)

  object GetLabelName extends (Label ~> Const[String]#λ) {
    def apply[A](label: Label[A]) = label.name

mpollmeier

/** Converse.js (Web-based XMPP instant messaging client) 
* http://conversejs.org 
* Copyright (c) 2012, Jan-Carel Brand <jc@opkode.com> 
* Dual licensed under the MIT and GPL Licenses 
*/
/*!
 * Converse.js (Web-based XMPP instant messaging client)
 * http://conversejs.org
 *
 * Copyright (c) 2012-2014, JC Brand <jc@opkode.com>

mpollmeier

import org.apache.tinkerpop.gremlin.neo4j.structure.Neo4jGraph
import gremlin.scala._

val dbPath = "/tmp/test" + math.random
val timeStart = System.currentTimeMillis
val graph = Neo4jGraph.open(dbPath)
val sg = ScalaGraph(graph)
val gs = GremlinScala(graph)

// graph.tx.open()