Otto Chrons ochrons

Serial entrepreneur. Also Scala and Rust OSS contributor on my free time.

ochrons / gist:10681050

Last active March 26, 2018 15:21

Super thin Scala wrapper for common DataStax Cassandra Java driver functionality.

	object CassandraWrapper {
	import scala.language.implicitConversions
	import scala.language.postfixOps
	/**
	* Converts a `ResultSetFuture` into a Scala `Future[ResultSet]`
	* @param f ResultSetFuture to convert
	* @return Converted Future
	*/
	implicit def resultSetFutureToScala(f: ResultSetFuture): Future[ResultSet] = {
	val p = Promise[ResultSet]()

ochrons / browserChrome.txt

Created October 29, 2015 20:44

Scala/ScalaJS serialization lib performance comparison

ochrons / ValueRefEq.scala

Last active December 17, 2015 21:38

	class ZipModelR[M, S, SS](root: ModelR[M, M], get1: M => S, get2: M => SS)(implicit cts: ClassTag[S], ctss: ClassTag[SS]) extends ModelR[M, (S, SS)] {
	private var zipped = Tuple2[S, SS](null.asInstanceOf[S], null.asInstanceOf[SS])

	// ZipModel uses optimized `get` functions to compare if the contents of the tuple has changed or not
	// Different comparison functions are used for boxed values and real references
	private def getXX(compS: (S, S) => Boolean, compSS: (SS, SS) => Boolean)(model: M) = {
	// check if inner references have changed
	val v1 = get1(root.value)
	val v2 = get2(root.value)
	if (compS(zipped._1, v1) \|\| compSS(zipped._2, v2)) {

ochrons / Osc.scala

Last active April 14, 2018 14:13 — forked from anonymous/SierpinskiTriangle.scala

ScalaFiddle gist

	import math._
	val (h, w) = (Page.canvas.height, Page.canvas.width)
	var x = 0.0
	// $FiddleStart
	val graphs = Seq[(String, Double => Double)](
	("red", sin),
	("green", x => 2 - abs(x % 8 - 4)),
	("blue", x => 3 * pow(sin(x / 12), 2) * sin(x))
	)
	// $FiddleEnd

ochrons / gitter.css

Created February 22, 2016 18:36

Custom CSS theme for Gitter

	.room-list-item__unread-badge {
	color: black;
	}

	pre code {
	text-rendering: optimizeLegibility;
	font-family: Hasklig, monospace;
	}

ochrons / test.scala

Created March 11, 2016 08:50 — forked from retronym/test.scala

	import scala.tools.nsc.interactive, scala.tools.nsc.reporters._, scala.tools.nsc._

	object Test {
	def main(args: Array[String]): Unit = {
	val reporter = new StoreReporter
	val s = new Settings()
	s.processArgumentString("-Ypresentation-any-thread")
	val global = new interactive.Global(s, reporter)
	import global._
	val Cursor = ""//"_DUMMY_ "

ochrons / ScalaFiddle.scala

Last active April 25, 2016 20:41

Hilber curve demonstration in ScalaFiddle

	// $FiddleDependency org.scala-js %%% scalajs-dom % 0.9.0
	// $FiddleDependency com.lihaoyi %%% scalatags % 0.5.4
	import scalatags.JsDom.all._
	import org.scalajs.dom
	import fiddle.Fiddle, Fiddle.println
	import scalajs.js

	object ScalaFiddle extends js.JSApp {
	def main() = {
	// $FiddleStart

ochrons / S3-Akka-Streaming.scala

Last active July 14, 2018 01:24

	import com.amazonaws.HttpMethod
	import com.amazonaws.services.s3.AmazonS3Client
	import com.amazonaws.services.s3.model._

	...
	val s3Client = new AmazonS3Client

	private def getFlow(pathRaw: String, method: HttpMethod) = {
	// clean the path
	val path = pathRaw.dropWhile(_ == '/').trim

ochrons / WorkerMain.scala

Created May 25, 2016 19:59

Web Worker PoC in Scala.js

	package poc

	import org.scalajs.dom

	import scala.scalajs.js
	import scala.scalajs.js.annotation.JSExport

	@js.native
	object WorkerGlobal extends js.GlobalScope {
	def addEventListener(`type`: String, f: js.Function): Unit = js.native

ochrons / countries.txt

Created May 26, 2016 12:48