Peter vR nefilim
nefilim
/ SemigroupHKT.scala
Last active
May 24, 2022 18:15
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| object SuppliedSemigroup { | |
| import cats.kernel.Semigroup | |
| implicit val maxDurationSemigroup: Semigroup[Duration] = Semigroup((a, b) => if (a > b) a else b) | |
| // implicit val optionMonoid: Monoid[Option[Duration]] = cats.kernel.instances.option.catsKernelStdMonoidForOption(maxDurationSemigroup) | |
| def optionDurationCombineSemigroup(rp1: Option[Duration], rp2: Option[Duration])(implicit mo: Semigroup[Option[Duration]]): Option[Duration] = { | |
| mo.combine(rp1, rp2) | |
| } |
nefilim
/ precedence.scala
Last active
May 24, 2022 16:59
scala 2 implicit cats type class precendence
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| object Precendence { | |
| import cats.Monoid | |
| import cats.kernel.Semigroup | |
| import cats.instances.duration._ // <==== comment this out to see the difference | |
| implicit val maxDurationSemigroup: Semigroup[Duration] = Semigroup((a, b) => if (a > b) a else b) | |
| implicit def optionMonoid[A](implicit ev: Semigroup[A]): Monoid[Option[A]] = | |
| new Monoid[Option[A]] { | |
| def empty: Option[A] = None | |
| def combine(x: Option[A], y: Option[A]): Option[A] = | |
| x match { |
nefilim
/ gist:6518314
Created
September 11, 2013 01:35
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| @DoNotDiscover | |
| class Test1 | |
| extends FeatureSpecLike | |
| with Logging | |
| { | |
| feature("main feature") { | |
| logger.info("starting main feature") | |
| scenario("do stuff") { | |
| logger.info("doing some stuff here yo") |
nefilim
/ gist:6502975
Created
September 9, 2013 23:35
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| import akka.actor._ | |
| import akka.routing.{Broadcast, RoundRobinRouter} | |
| import scala.Some | |
| // CONNECTION | |
| case class Connection(production: Boolean = false, id: Int) { | |
| def doStuff(stuff: String) = println(s"stuff [${stuff}] is being done") | |
| } | |
| trait ConnectionProvider { |
nefilim
/ gist:6383524
Created
August 29, 2013 21:16
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| val map = Map[String, () => Unit]("a" -> proc1, "b" -> proc2) | |
| def proc1() { | |
| println("doing stuff") | |
| } | |
| def proc2() { | |
| println("doing other stuff") | |
| } |
nefilim
/ gist:6354892
Created
August 27, 2013 15:12
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| implicit def serviceRequest2GeneratedMessage[R <: ServiceResponse, T <: GeneratedMessage](response: R): T = { | |
| response match { | |
| case p:PlayerRegisterResponse => return someFunctionThatMapsToGeneratedMessageDerivedClass(p) | |
| } | |
| } |
nefilim
/ gist:6253892
Created
August 16, 2013 22:08
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| import sbt._ | |
| import Keys._ | |
| import sbtprotobuf.{ProtobufPlugin=>PB} | |
| object MyBuild extends Build { | |
| lazy val root = Project( | |
| id = "toastyphoenix", | |
| base = file("."), | |
| settings = Defaults.defaultSettings ++ PB.protobufSettings ++ Seq( | |
| version := "2.5.0" |
nefilim
/ gist:5818277
Created
June 19, 2013 21:31
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| class MyClass | |
| attr_accessor :vara, :varb | |
| def initialize(hash) | |
| @vara = hash[:vara] | |
| @varb = hash[:varb] | |
| end |
nefilim
/ gist:4736971
Created
February 8, 2013 06:01
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| procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu----- | |
| r b swpd free buff cache si so bi bo in cs us sy id wa st | |
| 1 0 30100 10820 21460 730368 0 0 0 0 87 208 0 1 99 0 0 | |
| 0 0 30100 10820 21460 730368 0 0 0 0 101 248 0 0 100 0 0 | |
| 2 0 30100 10820 21460 730368 0 0 0 0 96 214 0 0 100 0 0 | |
| 1 0 30100 10820 21460 730368 0 0 0 0 97 223 0 0 100 0 0 | |
| 0 1 30100 10292 21460 730400 0 0 32 0 122 257 0 1 84 15 0 | |
| 4 1 30100 10624 21200 729308 0 0 0 0 150 152 0 5 0 95 0 | |
| 30 1 30100 10664 21200 729308 0 0 0 0 354 40 0 83 0 17 0 | |
| 30 1 30100 10768 21016 728892 0 0 0 0 386 88 1 94 0 6 0 |