Idiomatic scala 3 implicits

cats/src/main/scala-2/magnolify/cats/CatsImplicits.scala

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2023 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package magnolify.cats
+
+import cats.Show
+import cats.kernel.*
+
+trait CatsImplicits {
+  implicit def genBand(b: Band.type): magnolify.cats.BandDerivation.type =
+    magnolify.cats.BandDerivation
+
+  implicit def genCommutativeGroup(
+    cg: CommutativeGroup.type
+  ): magnolify.cats.CommutativeGroupDerivation.type =
+    magnolify.cats.CommutativeGroupDerivation
+
+  implicit def genCommutativeMonoid(
+    cm: CommutativeMonoid.type
+  ): magnolify.cats.CommutativeMonoidDerivation.type =
+    magnolify.cats.CommutativeMonoidDerivation
+
+  implicit def genCommutativeSemigroup(
+    cm: CommutativeSemigroup.type
+  ): magnolify.cats.CommutativeSemigroupDerivation.type =
+    magnolify.cats.CommutativeSemigroupDerivation
+
+  implicit def genEq(eq: Eq.type): magnolify.cats.EqDerivation.type =
+    magnolify.cats.EqDerivation
+
+  implicit def genGroup(g: Group.type): magnolify.cats.GroupDerivation.type =
+    magnolify.cats.GroupDerivation
+
+  implicit def genHash(h: Hash.type): magnolify.cats.HashDerivation.type =
+    magnolify.cats.HashDerivation
+
+  implicit def genMonoid(m: Monoid.type): magnolify.cats.MonoidDerivation.type =
+    magnolify.cats.MonoidDerivation
+
+  implicit def genSemigroup(sg: Semigroup.type): magnolify.cats.SemigroupDerivation.type =
+    magnolify.cats.SemigroupDerivation
+
+  implicit def genShow(sg: Show.type): magnolify.cats.ShowDerivation.type =
+    magnolify.cats.ShowDerivation
+
+}
+
+object CatsImplicits

cats/src/main/scala-3/magnolify/cats/CatsImplicits.scala

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package magnolify.cats
+
+import cats.Show
+import cats.kernel.*
+
+import scala.deriving.Mirror
+
+trait CatsImplicits:
+
+  // format: off
+  extension (b: Band.type) inline def gen[T](using Mirror.Of[T]): Band[T] = BandDerivation.gen
+  extension (cg: CommutativeGroup.type) inline def gen[T](using Mirror.Of[T]): CommutativeGroup[T] = CommutativeGroupDerivation.gen
+
+  extension (cm: CommutativeMonoid.type) inline def gen[T](using Mirror.Of[T]): CommutativeMonoid[T] = CommutativeMonoidDerivation.gen
+
+  extension (cm: CommutativeSemigroup.type) inline def gen[T](using Mirror.Of[T]): CommutativeSemigroup[T] = CommutativeSemigroupDerivation.gen
+
+  extension (eq: Eq.type) inline def gen[T](using Mirror.Of[T]): Eq[T] = EqDerivation.gen
+
+  extension (g: Group.type) inline def gen[T](using Mirror.Of[T]): Group[T] = GroupDerivation.gen
+
+  extension (h: Hash.type) inline def gen[T](using Mirror.Of[T]): Hash[T] = HashDerivation.gen
+
+  extension (m: Monoid.type) inline def gen[T](using Mirror.Of[T]): Monoid[T] = MonoidDerivation.gen
+
+  extension (sg: Semigroup.type) inline def gen[T](using Mirror.Of[T]): Semigroup[T] = SemigroupDerivation.gen
+
+  extension (s: Show.type) inline def gen[T](using Mirror.Of[T]): Show[T] = ShowDerivation.gen
+  // format: on
+
+object CatsImplicits

cats/src/main/scala/magnolify/cats/auto/package.scala

@@ -16,4 +16,4 @@
 
 package magnolify.cats
 
-package object auto extends AutoDerivation
+package object auto extends CatsImplicits with AutoDerivation

cats/src/main/scala/magnolify/cats/semiauto/package.scala

@@ -16,10 +16,7 @@
 
 package magnolify.cats
 
-import cats.Show
-import cats.kernel.*
-
-package object semiauto {
+package object semiauto extends CatsImplicits {
 
   @deprecated("Use Band.gen[T] instead", "0.7.0")
   val BandDerivation = magnolify.cats.BandDerivation
@@ -39,30 +36,5 @@ package object semiauto {
   val SemigroupDerivation = magnolify.cats.SemigroupDerivation
   @deprecated("Use Show.gen[T] instead", "0.7.0")
   val ShowDerivation = magnolify.cats.ShowDerivation
-  implicit def genBand(b: Band.type): magnolify.cats.BandDerivation.type =
-    magnolify.cats.BandDerivation
-  implicit def genCommutativeGroup(
-    cg: CommutativeGroup.type
-  ): magnolify.cats.CommutativeGroupDerivation.type =
-    magnolify.cats.CommutativeGroupDerivation
-  implicit def genCommutativeMonoid(
-    cm: CommutativeMonoid.type
-  ): magnolify.cats.CommutativeMonoidDerivation.type =
-    magnolify.cats.CommutativeMonoidDerivation
-  implicit def genCommutativeSemigroup(
-    cm: CommutativeSemigroup.type
-  ): magnolify.cats.CommutativeSemigroupDerivation.type =
-    magnolify.cats.CommutativeSemigroupDerivation
-  implicit def genEq(eq: Eq.type): magnolify.cats.EqDerivation.type =
-    magnolify.cats.EqDerivation
-  implicit def genGroup(g: Group.type): magnolify.cats.GroupDerivation.type =
-    magnolify.cats.GroupDerivation
-  implicit def genHash(h: Hash.type): magnolify.cats.HashDerivation.type =
-    magnolify.cats.HashDerivation
-  implicit def genMonoid(m: Monoid.type): magnolify.cats.MonoidDerivation.type =
-    magnolify.cats.MonoidDerivation
-  implicit def genSemigroup(sg: Semigroup.type): magnolify.cats.SemigroupDerivation.type =
-    magnolify.cats.SemigroupDerivation
-  implicit def genShow(sg: Show.type): magnolify.cats.ShowDerivation.type =
-    magnolify.cats.ShowDerivation
+
 }