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HList example for DiffShow #10

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HList example for DiffShow #10

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23 changes: 23 additions & 0 deletions test/Main.scala
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import ai.x.diff._
import shapeless._
import scala.collection.immutable.SortedMap
sealed trait Parent
case class Bar( s: String, i: Int ) extends Parent
Expand Down Expand Up @@ -90,6 +91,28 @@ object Main extends App {
)
}

{
implicit def HListDiffShow: DiffShow[HList] = new DiffShow[shapeless.HList] {
def show(t: HList) = t.toString
def diff(left: HList, right: HList) = if (left == right) Identical(left) else Different(left, right)
override def diffable(left: HList, right: HList) = left.runtimeLength == right.runtimeLength
}

println(
DiffShow.diff(
"abcd" :: 123 :: 'c' :: HNil,
"abcd" :: 123 :: 'c' :: HNil
)
)

println(
DiffShow.diff(
"abcd" :: 123 :: 'c' :: HNil,
"abcd" :: 125 :: 'b' :: HNil
)
)
}

/*

//import pprint.Config.Defaults._
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