Merge pull request #6947 from dotty-staging/add-liftable-tuplexxl

Add `quoted.Liftable[TupleN]` with N > 22 to the stdlib

Author: nicolasstucki

library/src/scala/quoted/Liftable.scala

@@ -239,6 +239,11 @@ object Liftable {
     }
   }
 
+  given [H: Type: Liftable, T <: Tuple: Type: Liftable] as Liftable[H *: T] = new {
+    def toExpr(tup: H *: T): given QuoteContext => Expr[H *: T] =
+      '{ ${tup.head.toExpr} *: ${tup.tail.toExpr} }
+  }
+
   given as Liftable[BigInt] = new Liftable[BigInt] {
     def toExpr(x: BigInt): given QuoteContext => Expr[BigInt] =
       '{ BigInt(${x.toByteArray.toExpr}) }

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

@@ -43,9 +43,9 @@ object Test {
     (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20).toExpr
     (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21).toExpr
     (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22).toExpr
-//    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23).toExpr
-//    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24).toExpr
-//    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25).toExpr
+    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23).toExpr
+    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24).toExpr
+    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25).toExpr
 
     val list: List[Int] = List(1, 2, 3)
     val liftedList: Expr[List[Int]] = list