I-broke-it

# Julien's snippet

N.B. this compiled the first time I pasted it, and now it doesn't. Have tried cleaning and running it in a new, empty sbt project.

import monocle.syntax._
import monocle.function._
import monocle.std.vector._

(Vector(0,1,2,3) applyOptional index(1) modify(_ + 1))

[info] Compiling 4 Scala sources to /Users/ryanandlyndsey/projects/scala-sandbox/target/scala-2.11/classes...
[error] /Users/ryanandlyndsey/projects/scala-sandbox/monocle.scala:5: expected class or object definition
[error] (Vector(0,1,2,3) applyOptional index(1) modify(_ + 1))
[error] ^
[error] one error found


# Julien's snippet in an Object

import monocle.syntax._
import monocle.function._
import monocle.std.vector._

object Foo {
  val z = (Vector(0,1,2,3) applyOptional index(1) modify(_ + 1))
}

[info] Compiling 4 Scala sources to /Users/ryanandlyndsey/projects/scala-sandbox/target/scala-2.11/classes...
[error] /Users/ryanandlyndsey/projects/scala-sandbox/monocle.scala:6: value applyOptional is not a member of scala.collection.immutable.Vector[Int]
[error]   val z = (Vector(0,1,2,3) applyOptional index(1) modify(_ + 1))
[error]                            ^
[error] /Users/ryanandlyndsey/projects/scala-sandbox/monocle.scala:6: not found: value index
[error]   val z = (Vector(0,1,2,3) applyOptional index(1) modify(_ + 1))
[error]                                          ^
[error] two errors found


# build.sbt, sbt v0.13

import sbt._

// BEGIN - Monacle
resolvers += Resolver.sonatypeRepo("releases")
resolvers += Resolver.sonatypeRepo("snapshots")

val monacleVersion = "1.2.2"     // or "1.3.0-SNAPSHOT"

libraryDependencies ++= Seq(
  "com.github.julien-truffaut"  %%  "monocle-core"    % monacleVersion,
  "com.github.julien-truffaut"  %%  "monocle-generic" % monacleVersion,
  "com.github.julien-truffaut"  %%  "monocle-macro"   % monacleVersion,
  "com.github.julien-truffaut"  %%  "monocle-state"   % monacleVersion,
  "com.github.julien-truffaut"  %%  "monocle-refined" % monacleVersion,
  "com.github.julien-truffaut"  %%  "monocle-law"     % monacleVersion % "test"
)

// for @Lenses macro support
scalacOptions ++= Seq("-language:higherKinds") // @Lens annotation requires higherKinded types; TODO is there a runtime cost for @Lens?
addCompilerPlugin("org.scalamacros" %% "paradise" % "2.1.0" cross CrossVersion.full)
// END - Monacle

lazy val root = (project in file(".")).
  settings(
    name := "hello",
    version := "1.0",
    scalaVersion := "2.11.8",
    libraryDependencies ++= Seq(
      "com.typesafe.akka" %% "akka-actor" % "2.4.9-RC2"
      // exampleo of test-only dependency: "com.typesafe.akka" %% "akka-actor" % "2.4.9-RC2" % Test
    )
  )