From 3d99c638fb6101cf21248417fb73b6eeb9a864ac Mon Sep 17 00:00:00 2001
From: Rocky Madden <git@rockymadden.com>
Date: Sun, 5 Jan 2014 10:52:00 -0700
Subject: Moved implicits to source type.

---
 .../com/rockymadden/stringmetric/Algorithm.scala   | 21 +++++++++++++++++----
 .../com/rockymadden/stringmetric/Metric.scala      | 22 ++++++++++++++++++----
 .../com/rockymadden/stringmetric/package.scala     | 11 +++--------
 3 files changed, 38 insertions(+), 16 deletions(-)

diff --git a/core/src/main/scala/com/rockymadden/stringmetric/Algorithm.scala b/core/src/main/scala/com/rockymadden/stringmetric/Algorithm.scala
index 1200926..a6d6d6e 100755
--- a/core/src/main/scala/com/rockymadden/stringmetric/Algorithm.scala
+++ b/core/src/main/scala/com/rockymadden/stringmetric/Algorithm.scala
@@ -2,7 +2,7 @@ package com.rockymadden.stringmetric
 
 object Algorithm {
 	import scala.collection.immutable.Map
-	import Transform.StringTransform
+	import Transform._
 
 
 	trait Algorithm[A] {
@@ -10,6 +10,12 @@ object Algorithm {
 	}
 
 
+	object Algorithm {
+		implicit def stringAlgorithmToDecorated(sa: StringAlgorithm): StringAlgorithmDecorator =
+			new StringAlgorithmDecorator(sa)
+	}
+
+
 	trait StringAlgorithm extends Algorithm[Array[Char]] {
 		def compute(a: String): Option[String]
 	}
@@ -34,8 +40,15 @@ object Algorithm {
 	}
 
 
-	final class StringAlgorithmDecorator(val sa: StringAlgorithm) {
-		val withMemoization: StringAlgorithm = new StringAlgorithm {
+	trait AlgorithmDecorator[A] {
+		val withMemoization: Algorithm[A]
+
+		val withTransform: (Transform[A] => Algorithm[A])
+	}
+
+
+	final case class StringAlgorithmDecorator(sa: StringAlgorithm) extends AlgorithmDecorator[Array[Char]] {
+		override val withMemoization: StringAlgorithm = new StringAlgorithm {
 			private val base: StringAlgorithm = sa
 			private var memo: Map[String, Option[String]] = Map()
 
@@ -50,7 +63,7 @@ object Algorithm {
 				}
 		}
 
-		val withTransform: (StringTransform => StringAlgorithm) = (st) => new StringAlgorithm {
+		override val withTransform: (StringTransform => StringAlgorithm) = (st) => new StringAlgorithm {
 			private val base: StringAlgorithm = sa
 			private val transform: StringTransform = st
 
diff --git a/core/src/main/scala/com/rockymadden/stringmetric/Metric.scala b/core/src/main/scala/com/rockymadden/stringmetric/Metric.scala
index f217f52..686ebc9 100755
--- a/core/src/main/scala/com/rockymadden/stringmetric/Metric.scala
+++ b/core/src/main/scala/com/rockymadden/stringmetric/Metric.scala
@@ -1,7 +1,7 @@
 package com.rockymadden.stringmetric
 
 object Metric {
-	import Transform.StringTransform
+	import Transform._
 
 
 	trait Metric[A, B] {
@@ -9,6 +9,12 @@ object Metric {
 	}
 
 
+	object Metric {
+		implicit def stringMetricToDecorated[A](sa: StringMetric[A]): StringMetricDecorator[A] =
+			new StringMetricDecorator[A](sa)
+	}
+
+
 	trait StringMetric[A] extends Metric[Array[Char], A] {
 		def compare(a: String, b: String): Option[A]
 	}
@@ -62,8 +68,16 @@ object Metric {
 			WeightedLevenshtein(delete, insert, substitute).compare(a, b)
 	}
 
-	final class StringMetricDecorator[A](val sm: StringMetric[A]) {
-		val withMemoization: StringMetric[A] = new StringMetric[A] {
+
+	sealed trait MetricDecorator[A, B] {
+		val withMemoization: Metric[A, B]
+
+		val withTransform: (Transform[A] => Metric[A, B])
+	}
+
+
+	final case class StringMetricDecorator[A](sm: StringMetric[A]) extends MetricDecorator[Array[Char], A] {
+		override val withMemoization: StringMetric[A] = new StringMetric[A] {
 			private val base: StringMetric[A] = sm
 			private var memo: Map[(String, String), Option[A]] = Map()
 
@@ -80,7 +94,7 @@ object Metric {
 			}
 		}
 
-		val withTransform: (StringTransform => StringMetric[A]) = (st) => new StringMetric[A] {
+		override val withTransform: (StringTransform => StringMetric[A]) = (st) => new StringMetric[A] {
 			private val base: StringMetric[A] = sm
 			private val transform: StringTransform = st
 
diff --git a/core/src/main/scala/com/rockymadden/stringmetric/package.scala b/core/src/main/scala/com/rockymadden/stringmetric/package.scala
index e5bc19d..54bef55 100755
--- a/core/src/main/scala/com/rockymadden/stringmetric/package.scala
+++ b/core/src/main/scala/com/rockymadden/stringmetric/package.scala
@@ -2,16 +2,11 @@ package com.rockymadden
 
 package object stringmetric {
 	import scala.language.implicitConversions
-	import Algorithm._
-	import Metric._
+
 
 	type CompareTuple[T] = (Array[T], Array[T])
 	type MatchTuple[T] = (Array[T], Array[T])
 
-	implicit def stringToCharArray(s: String): Array[Char] =
-		s.toCharArray
-	implicit def stringAlgorithmToDecoratedStringAlgorithm(sa: StringAlgorithm): StringAlgorithmDecorator =
-		new StringAlgorithmDecorator(sa)
-	implicit def stringMetricToDecoratedStringMetric[A](sa: StringMetric[A]): StringMetricDecorator[A] =
-		new StringMetricDecorator[A](sa)
+
+	implicit def stringToCharArray(s: String): Array[Char] = s.toCharArray
 }
-- 
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