Include support for decomposing AnyVals, like case classes

1 files changed, 4 insertions, 1 deletions

diff --git a/examples/src/main/scala/show.scala b/examples/src/main/scala/show.scala
index e101c11..fdebb78 100644
--- a/examples/src/main/scala/show.scala
+++ b/examples/src/main/scala/show.scala
@@ -21,7 +21,10 @@ trait GenericShow[Out] {
   /** creates a new [[Show]] instance by labelling and joining (with `mkString`) the result of
     *  showing each parameter, and prefixing it with the class name */
   def combine[T](ctx: CaseClass[Typeclass, T]): Show[Out, T] = new Show[Out, T] {
-    def show(value: T) = {
+    def show(value: T) = if(ctx.isValueClass) {
+      val param = ctx.parameters.head
+      param.typeclass.show(param.dereference(value))
+    } else {
       val paramStrings = ctx.parameters.map { param =>
         s"${param.label}=${param.typeclass.show(param.dereference(value))}"
       }