channingwalton

// No case classes
object Consoles {

  trait ConsoleAlg[F[_]] {
    def readLine: F[Option[String]]

    def printLine(line: String): F[Unit]
  }

  trait Console[+A] {

channingwalton

module Main 

rev : Vect n a -> Vect n a
rev Nil = Nil
rev (x :: xs) = (rev xs) ++ (x :: Nil)

main : IO ()
main = putStrLn $ show $ rev [1,2,3]

fails to compile with

channingwalton

21:15:22.745 ERROR akka://ENSIME/user/$b o.e.s.SocketHandler - Error in socket reader: 
java.lang.NumberFormatException: For input string: "new Wo"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[na:1.8.0_31]
	at java.lang.Integer.parseInt(Integer.java:580) ~[na:1.8.0_31]
	at java.lang.Integer.valueOf(Integer.java:740) ~[na:1.8.0_31]
	at org.ensime.server.FramedStringProtocol$class.readString(FramedStringProtocol.scala:39) ~[server_2.11-0.9.10-SNAPSHOT.jar:0.9.10-SNAPSHOT]
	at org.ensime.server.SwankProtocol.readString(SwankProtocol.scala:10) ~[server_2.11-0.9.10-SNAPSHOT.jar:0.9.10-SNAPSHOT]
	at org.ensime.server.S≈wankProtocol.read(SwankProtocol.scala:15) ~[server_2.11-0.9.10-SNAPSHOT.jar:0.9.10-SNAPSHOT]
	at org.ensime.server.SocketHandler$$anon$1.run(SocketHandler.scala:43) ~[server_2.11-0.9.10-SNAPSHOT.jar:0.9.10-SNAPSHOT]

channingwalton

package reactive

import java.util.concurrent.TimeUnit

import rx.lang.scala.{Observable, Subject}

import scala.concurrent.duration.Duration

/**
  * The problem: can two threads banging away from two sources be merged and have predictable results?

channingwalton

<SCRIPT language=Javascript>
      <!--
      function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         return charCode > 47 && charCode < 58;
      }
      //-->
   </SCRIPT>
   </HEAD>

channingwalton

Keybase proof

I hereby claim:

• I am channingwalton on github.
• I am channingwalton (https://keybase.io/channingwalton) on keybase.
• I have a public key ASD_xyZHdprhe-YpLLpvwqvgVW-wFGmVXHZ8fwXP_1soLwo

To claim this, I am signing this object:

channingwalton

package set.performance

import java.util.concurrent.TimeUnit

import scala.concurrent.duration.FiniteDuration

/**
* On my machine the fast method takes < 2 ms, the slow one 2.2s
*/
object SetPerformance {

channingwalton

Compiler

• https://tpolecat.github.io/2017/04/25/scalac-flags.html

Plugins

• https://github.com/coursier/coursier
• http://www.wartremover.org

libs

• https://github.com/Verizon/delorean

channingwalton

Keybase proof

I hereby claim:

• I am channingwalton on github.
• I am channingwalton (https://keybase.io/channingwalton) on keybase.
• I have a public key ASAzN6zGSraBz_wTqUhbQLqzT4wmAjuy3zGojAOeYGo2Uwo

To claim this, I am signing this object:

channingwalton

import cats.data.NonEmptyList
import cats.Eq

import scala.collection.GenTraversableOnce

sealed trait NonEmptySet[T] extends (T => Boolean) {
  def head: T
  def set: Set[T]
  def +(t: T): NonEmptySet[T]
  def ++(ts: NonEmptySet[T]): NonEmptySet[T]