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enumTypes.scala
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enumTypes.scala
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/*
* Copyright 2022 Neandertech
*
* 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 langoustine.lsp
import runtime.*
import upickle.default.*
import scala.reflect.*
trait Bijection[A, T]:
def apply(a: A): T
def reverse(a: T): A
def domain: Set[A]
private[lsp] trait IntEnum[T](using ev: T =:= Int):
private val intCodec = upickle.default.readwriter[Int]
given reader: Reader[T] = intCodec.asInstanceOf[Reader[T]]
given writer: Writer[T] = intCodec.asInstanceOf[Writer[T]]
protected def ALL: Set[T]
given Bijection[T, Int] with
def apply(a: T): Int = ev.apply(a)
def reverse(a: Int): T =
ev.flip.apply(a)
lazy val domain = ALL
given Typeable[T] with
def unapply(s: Any): Option[s.type & T] =
s match
case c: Int => Some(c.asInstanceOf[s.type & T])
case _ => Option.empty
protected inline def entry(n: Int): T =
n.asInstanceOf[T]
extension (t: T) inline def raw: Int = t.asInstanceOf[Int]
end IntEnum
private[lsp] trait StringEnum[T](using ev: T =:= String):
private val stringCodec = upickle.default.readwriter[String]
given reader: Reader[T] = stringCodec.asInstanceOf[Reader[T]]
given writer: Writer[T] = stringCodec.asInstanceOf[Writer[T]]
protected def ALL: Set[T]
given Bijection[T, String] with
def apply(a: T): String = ev.apply(a)
def reverse(a: String): T = ev.flip.apply(a)
lazy val domain = ALL
given Typeable[T] with
def unapply(s: Any): Option[s.type & T] =
s match
case c: String => Some(c.asInstanceOf[s.type & T])
case _ => Option.empty
protected inline def entry(n: String): T =
n.asInstanceOf[T]
extension (t: T) inline def raw: String = t.asInstanceOf[String]
end StringEnum
private[lsp] trait UIntEnum[T](using ev: T =:= uinteger):
private val intCodec = upickle.default.readwriter[Int]
given reader: Reader[T] = intCodec.asInstanceOf[Reader[T]]
given writer: Writer[T] = intCodec.asInstanceOf[Writer[T]]
protected def ALL: Set[T]
given Bijection[T, uinteger] with
def apply(a: T): uinteger = ev.apply(a)
def reverse(a: uinteger): T =
ev.flip.apply(a)
lazy val domain = ALL
given Typeable[T] with
def unapply(s: Any): Option[s.type & T] =
s match
case c: uinteger => Some(c.asInstanceOf[s.type & T])
case _ => Option.empty
protected inline def entry(n: Int): T =
uinteger(n).asInstanceOf[T]
extension (t: T)
inline def raw: uinteger = t.asInstanceOf[uinteger]
inline def rawInt: Int = t.asInstanceOf[Int]
end UIntEnum