matt-martin

// based on https://github.com/matt-martin/fpinscala/blob/05cd5a2b288677ebc67d258fcfb9c06b63052314/exercises/src/main/scala/fpinscala/datastructures/List.scala#L11
def sumNonTailRecursive(ints: List[Int]): Int = ints match {
  case Nil => 0
  case x :: xs => x + sumNonTailRecursive(xs)
}

@annotation.tailrec
def sumTailRecursiveHelper(ints: List[Int], sumSoFar: Int): Int = ints match {
  case Nil => sumSoFar
  case x :: xs => sumTailRecursiveHelper(xs, sumSoFar + x)

matt-martin

Keybase proof

I hereby claim:

• I am matt-martin on github.
• I am mattbmartin (https://keybase.io/mattbmartin) on keybase.
• I have a public key ASAO3e7-fSFUvUVgVopHxOALRXdcjhxAbUPEV6rvlBlNEQo

To claim this, I am signing this object:

matt-martin

implicit def hNilToList[L <: HNil](l : L) : List[Any] = Nil

implicit def hListToList[H <: Any, T <: HList](l : H :: T)(implicit conv : T => List[Any]) : List[Any] = {
  l.head :: conv(l.tail)
} 
  
hListToList("foo" :: HNil)
//res23: List[Any] = List(foo)

hListToList("foo" :: "bar" :: HNil)

matt-martin

import shapeless._
import shapeless.ops.hlist._
import shapeless.ops.nat._

import cascading.tuple.{Tuple, TupleEntry}

import com.twitter.scalding._

// documentation for cascading:
//   http://docs.cascading.org/cascading/2.5/javadoc/cascading/tuple/TupleEntry.html

matt-martin

cascading version: 3.0.0, build: wip-57
application id: 843F17CE3594477D8C5E536EA2FC4CDE
application name: 
application version: 
platform: local:3.0.0-wip-57:Concurrent, Inc.
frameworks: 

duration	2.114

PreBalanceAssembly	0.553