Merge pull request #9818 from dotty-staging/use-direct-implementation-style-for-reflection

Implement Reflection API directly

Author: nicolasstucki

compiler/src/dotty/tools/dotc/quoted/QuoteContextImpl.scala

@@ -186,6 +186,7 @@ class TailRec extends MiniPhase {
           def tailArgOrPureExpr(stat: Tree): Boolean = stat match {
             case stat: ValDef if stat.name.is(TailTempName) || !stat.symbol.is(Mutable) => tailArgOrPureExpr(stat.rhs)
             case Assign(lhs: Ident, rhs) if lhs.symbol.name.is(TailLocalName) => tailArgOrPureExpr(rhs)
+            case Assign(lhs: Ident, rhs: Ident) => lhs.symbol == rhs.symbol
             case stat: Ident if stat.symbol.name.is(TailLocalName) => true
             case _ => tpd.isPureExpr(stat)
           }

compiler/src/dotty/tools/dotc/quoted/reflect/ReflectionCompilerInterface.scala

@@ -59,10 +59,8 @@ object Liftable {
   /** Default liftable for Class[T] */
   given ClassLiftable[T] as Liftable[Class[T]] = new Liftable[Class[T]] {
     def toExpr(x: Class[T]) = {
-      val qctx1 = scala.internal.tasty.CompilerInterface.quoteContextWithCompilerInterface(qctx)
-      import qctx1.tasty._
-      val tpe = qctx1.tasty.Type_ofErasedClass(x)
-      Ref(defn.Predef_classOf).appliedToType(tpe).seal.asInstanceOf[Expr[Class[T]]]
+      import qctx.tasty._
+      Ref(defn.Predef_classOf).appliedToType(Type.typeConstructorOf(x)).seal.asInstanceOf[Expr[Class[T]]]
     }
   }