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-rw-r--r--examples/src/main/scala/typeclasses.scala127
1 files changed, 0 insertions, 127 deletions
diff --git a/examples/src/main/scala/typeclasses.scala b/examples/src/main/scala/typeclasses.scala
deleted file mode 100644
index aaa74fd..0000000
--- a/examples/src/main/scala/typeclasses.scala
+++ /dev/null
@@ -1,127 +0,0 @@
-package magnolia.examples
-
-import scala.collection.immutable.ListMap
-import scala.language.existentials
-import scala.language.higherKinds
-
-import magnolia._
-import scala.reflect._
-import scala.reflect.macros._
-import scala.language.experimental.macros
-import scala.annotation.unchecked.uncheckedVariance
-
-
-object Show {
- type Typeclass[T] = Show[String, T]
- def join[T](context: JoinContext[Typeclass, T]): Show[String, T] = new Show[String, T] {
- def show(value: T) = context.parameters.map { param =>
- s"${param.label}=${param.typeclass.show(param.dereference(value))}"
- }.mkString(s"${context.typeName.split("\\.").last}(", ",", ")")
- }
-
- def dispatch[T](subclasses: Seq[Subclass[Typeclass, T]])(value: T): String =
- subclasses.map { sub => sub.cast.andThen { value =>
- sub.typeclass.show(sub.cast(value))
- } }.reduce(_ orElse _)(value)
-
- implicit val string: Show[String, String] = identity
- implicit val int: Show[String, Int] = new Show[String, Int] { def show(s: Int): String = s.toString }
- implicit def generic[T]: Show[String, T] = macro Magnolia.generic[T]
-}
-
-trait Show[Out, T] { def show(value: T): Out }
-
-object Eq {
- type Typeclass[T] = Eq[T]
- def join[T](context: JoinContext[Eq, T]): Eq[T] = new Eq[T] {
- def equal(value1: T, value2: T) =
- context.parameters.forall { param => param.typeclass.equal(param.dereference(value1), param.dereference(value2)) }
- }
-
- def dispatch[T](subclasses: Seq[Subclass[Eq, T]]): Eq[T] = new Eq[T] {
- def equal(value1: T, value2: T) =
- subclasses.map { case subclass =>
- subclass.cast.andThen { value => subclass.typeclass.equal(subclass.cast(value1), subclass.cast(value2)) }
- }.reduce(_ orElse _)(value1)
- }
-
- implicit val string: Eq[String] = _ == _
- implicit val int: Eq[Int] = _ == _
- implicit def generic[T]: Eq[T] = macro Magnolia.generic[T]
-}
-
-trait Eq[T] { def equal(value: T, value2: T): Boolean }
-
-object Default {
- type Typeclass[T] = Default[T]
- def join[T](context: JoinContext[Default, T]): Default[T] = new Default[T] {
- def default = context.construct { param => param.typeclass.default }
- }
-
- def dispatch[T](subclasses: Seq[Subclass[Default, T]])(): Default[T] = new Default[T] {
- def default = subclasses.head.typeclass.default
- }
-
- implicit val string: Default[String] = new Default[String] { def default = "" }
- implicit val int: Default[Int] = new Default[Int] { def default = 0 }
- implicit def generic[T]: Default[T] = macro Magnolia.generic[T]
-}
-
-trait Default[T] { def default: T }
-
-object Decoder {
- def join[T](context: JoinContext[Decoder, T])(value: String): T =
- context.construct { param => param.typeclass.decode(value) }
-
- def dispatch[T](subclasses: Seq[Subclass[Decoder, T]])(param: String): T =
- subclasses.map { subclass =>
- { case _ if decodes(subclass.typeclass, param) => subclass.typeclass.decode(param) }: PartialFunction[String, T]
- }.reduce(_ orElse _)(param)
-
- def decodes[T](tc: Decoder[T], s: String): Boolean = try { tc.decode(s); true } catch { case e: Exception => false }
-
- implicit val string: Decoder[String] = new Decoder[String] { def decode(str: String): String = str }
- implicit val int: Decoder[Int] = new Decoder[Int] { def decode(str: String): Int = str.toInt }
- implicit def generic[T]: Decoder[T] = macro Magnolia.generic[T]
-}
-
-trait Decoder[T] { def decode(str: String): T }
-
-sealed trait Tree[+T]
-case class Leaf[+L](value: L) extends Tree[L]
-case class Branch[+B](left: Tree[B], right: Tree[B]) extends Tree[B]
-
-sealed trait Entity
-
-case class Company(name: String) extends Entity
-case class Person(name: String, age: Int) extends Entity
-case class Address(line1: String, occupant: Person)
-
-
-
-sealed trait Alphabet
-
-case class Greek(άλφα: Letter, βήτα: Letter, γάμα: Letter, δέλτα: Letter, έψιλον: Letter, ζήτα: Letter, ήτα: Letter, θήτα: Letter) extends Alphabet
-case class Cyrillic(б: Letter, в: Letter, г: Letter, д: Letter, ж: Letter, з: Letter) extends Alphabet
-case class Latin(a: Letter, b: Letter, c: Letter, d: Letter, e: Letter, f: Letter, g: Letter, h: Letter, i: Letter, j: Letter, k: Letter, l: Letter, m: Letter) extends Alphabet
-
-case class Letter(name: String, phonetic: String)
-case class Country(name: String, language: Language, leader: Person)
-case class Language(name: String, code: String, alphabet: Alphabet)
-//case class Person(name: String, dateOfBirth: Date)
-case class Date(year: Int, month: Month, day: Int)
-
-sealed trait Month
-case object Jan extends Month
-case object Feb extends Month
-case object Mar extends Month
-case object Apr extends Month
-case object May extends Month
-case object Jun extends Month
-case object Jul extends Month
-case object Aug extends Month
-case object Sep extends Month
-case object Oct extends Month
-case object Nov extends Month
-case object Dec extends Month
-