Teach the decompiler about the change

Author: OlivierBlanvillain

compiler/src/dotty/tools/dotc/printing/DecompilerPrinter.scala

@@ -57,7 +57,8 @@ class DecompilerPrinter(_ctx: Context) extends RefinedPrinter(_ctx) {
     def isSynthetic(parent: Tree): Boolean = {
       val sym = parent.symbol
       sym.maybeOwner == defn.ObjectClass ||
-      (sym == defn.ProductClass && impl.symbol.owner.is(Case))
+      (sym == defn.ProductClass && impl.symbol.owner.is(Case)) ||
+      (sym == defn.SerializableClass && impl.symbol.owner.is(Case))
     }
     val parents = impl.parents.filterNot(isSynthetic)
     val body = impl.body.filterNot(_.symbol.is(ParamAccessor))

library/src/scala/tasty/reflect/Printers.scala

@@ -596,6 +596,7 @@ trait Printers
           val parents1 = parents.filter {
             case IsTerm(Term.Apply(Term.Select(Term.New(tpt), _), _)) => !Types.JavaLangObject.unapply(tpt.tpe)
             case IsTypeTree(TypeTree.Select(Term.Select(Term.Ident("_root_"), "scala"), "Product")) => false
+            case IsTypeTree(TypeTree.Select(Term.Select(Term.Ident("_root_"), "scala"), "Serializable")) => false
             case _ => true
           }
           if (parents1.nonEmpty)

tests/pos/i2104b.decompiled

@@ -1,10 +1,10 @@
-/** Decompiled from out/posTestFromTasty/pos/i2104b/Cons.class */
+/** Decompiled from out/posTestFromTasty/pos/i2104b/Cons.tasty */
 trait Cons[H, T]() extends java.lang.Object
 object Cons {
   def apply[H, T](h: H, t: T): Cons[H, T] = scala.Predef.???
   def unapply[H, T](t: Cons[H, T]): scala.Option[Pair[H, T]] = scala.Predef.???
 }
-/** Decompiled from out/posTestFromTasty/pos/i2104b/Pair.class */
+/** Decompiled from out/posTestFromTasty/pos/i2104b/Pair.tasty */
 case class Pair[A, B](_1: A, _2: B) {
   override def hashCode(): scala.Int = {
     var acc: scala.Int = 2479866
@@ -32,10 +32,10 @@ case class Pair[A, B](_1: A, _2: B) {
   }
 }
 object Pair extends scala.AnyRef()
-/** Decompiled from out/posTestFromTasty/pos/i2104b/Test.class */
+/** Decompiled from out/posTestFromTasty/pos/i2104b/Test.tasty */
 object Test {
   def main(args: scala.Array[scala.Predef.String]): scala.Unit = Cons.apply[scala.Option[scala.Int], scala.None.type](scala.Option.apply[scala.Int](1), scala.None) match {
     case Cons(scala.Some(i), scala.None) =>
       ()
   }
-}
+}

tests/pos/simpleCaseClass-1.decompiled

@@ -1,4 +1,4 @@
-/** Decompiled from out/posTestFromTasty/pos/simpleCaseClass-1/A.class */
+/** Decompiled from out/posTestFromTasty/pos/simpleCaseClass-1/A.tasty */
 case class A() {
   override def hashCode(): scala.Int = 1914112431
   override def equals(x$0: scala.Any): scala.Boolean = A.this.eq(x$0.asInstanceOf[java.lang.Object]).||(x$0 match {
@@ -16,4 +16,4 @@ case class A() {
       throw new java.lang.IndexOutOfBoundsException(n.toString())
   }
 }
-object A extends scala.Function0[A]
+object A extends scala.Function0[A]

tests/pos/simpleCaseClass-2.decompiled

@@ -1,4 +1,4 @@
-/** Decompiled from out/posTestFromTasty/pos/simpleCaseClass-2/A.class */
+/** Decompiled from out/posTestFromTasty/pos/simpleCaseClass-2/A.tasty */
 case class A(x: scala.Int) {
   override def hashCode(): scala.Int = {
     var acc: scala.Int = 65
@@ -22,4 +22,4 @@ case class A(x: scala.Int) {
       throw new java.lang.IndexOutOfBoundsException(n.toString())
   }
 }
-object A extends scala.Function1[scala.Int, A]
+object A extends scala.Function1[scala.Int, A]

tests/pos/simpleCaseClass-3.decompiled

@@ -1,4 +1,4 @@
-/** Decompiled from out/posTestFromTasty/pos/simpleCaseClass-3/A.class */
+/** Decompiled from out/posTestFromTasty/pos/simpleCaseClass-3/A.tasty */
 case class A[T](x: T) {
   override def hashCode(): scala.Int = {
     var acc: scala.Int = 65

tests/pos/simpleCaseObject.decompiled

@@ -1,4 +1,4 @@
-/** Decompiled from out/posTestFromTasty/pos/simpleCaseObject/foo/Foo.class */
+/** Decompiled from out/posTestFromTasty/pos/simpleCaseObject/foo/Foo.tasty */
 package foo {
   case object Foo {
     override def hashCode(): scala.Int = 1045991777
@@ -11,4 +11,4 @@ package foo {
         throw new java.lang.IndexOutOfBoundsException(n.toString())
     }
   }
-}
+}

tests/run/literals.decompiled

@@ -1,4 +1,4 @@
-/** Decompiled from out/runTestFromTasty/run/literals/Test.class */
+/** Decompiled from out/runTestFromTasty/run/literals/Test.tasty */
 object Test {
   def αρετη: java.lang.String = "alpha rho epsilon tau eta"
   case class GGG(i: scala.Int) {
@@ -95,4 +95,4 @@ object Test {
     val ggg: scala.Int = Test.GGG.apply(1).αα(Test.GGG.apply(2))
     Test.check_success[scala.Int]("ggg == 3", ggg, 3)
   }
-}
+}