Add quoted.Liftable[Option[T]] to the stdlib

Author: nicolasstucki

library/src/scala/quoted/Liftable.scala

@@ -59,4 +59,11 @@ object Liftable {
     }
   }
 
+  given [T: Type: Liftable] as Liftable[Option[T]] = new Liftable[Option[T]] {
+    def toExpr(x: Option[T]): given QuoteContext => Expr[Option[T]] = x match {
+      case Some(x) => '{ Some[T](${x.toExpr}) }
+      case None => '{ None: Option[T] }
+    }
+  }
+
 }

tests/run-with-compiler/quote-lib.scala

@@ -38,6 +38,11 @@ object Test {
     val iarray: IArray[Int] = IArray(1, 2, 3)
     val liftedIArray: Expr[IArray[Int]] = iarray
 
+    val some: Option[Int] = Some(2)
+    val none: Option[Int] = Some(2)
+    val liftedSome: Expr[Option[Int]] = some
+    val liftedNone: Expr[Option[Int]] = none
+
     println("quote lib ok")
   }
 }