Merge pull request #93 from ChristopherDavenport/noopProject

Adds NoOp Implementation

Author: ChristopherDavenport

build.sbt

@@ -2,7 +2,7 @@ lazy val mules = project.in(file("."))
   .disablePlugins(MimaPlugin)
   .settings(skip in publish := true)
   .settings(commonSettings)
-  .aggregate(core, reload)
+  .aggregate(core, reload, noop)
 
 lazy val bench = project.in(file("modules/bench"))
   .disablePlugins(MimaPlugin)
@@ -17,6 +17,13 @@ lazy val core = project.in(file("modules/core"))
     name := "mules"
   )
 
+lazy val noop = project.in(file("modules/noop"))
+  .settings(commonSettings)
+  .dependsOn(core)
+  .settings(
+    name := "mules-noop"
+  )
+
 lazy val reload = project.in(file("modules/reload"))
   .settings(commonSettings)
   .dependsOn(core)

modules/noop/src/main/scala/io/chrisdavenport/mules/noop/NoOpCache.scala

@@ -0,0 +1,21 @@
+package io.chrisdavenport.mules.noop
+
+import io.chrisdavenport.mules.{Cache, TimeSpec}
+import cats.Applicative
+
+private class NoOpCache[F[_], K, V](implicit F: Applicative[F]) extends Cache[F, K, V]{
+  val noneF : F[Option[V]] = F.pure(None)
+  // Members declared in io.chrisdavenport.mules.Delete
+  def delete(k: K): F[Unit] = F.unit
+  
+  // Members declared in io.chrisdavenport.mules.Insert
+  def insert(k: K, v: V): F[Unit] = F.unit
+  def insertWithTimeout(optionTimeout: Option[TimeSpec])(k: K, v: V): F[Unit] = F.unit
+  
+  // Members declared in io.chrisdavenport.mules.Lookup
+  def lookup(k: K): F[Option[V]] = noneF
+}
+
+object NoOpCache {
+  def impl[F[_]: Applicative, K, V] : Cache[F, K, V] = new NoOpCache[F, K, V]
+}