Use Class.isPrimitive for perfomance

Author: nicolasstucki

compiler/src/dotty/tools/dotc/core/quoted/PickledQuotes.scala

@@ -161,23 +161,23 @@ object PickledQuotes {
   }
 
   private def classToType(clazz: Class[_])(implicit ctx: Context): Type = {
-    if (clazz == classOf[Boolean]) defn.BooleanType
-    else if (clazz == classOf[Byte]) defn.ByteType
-    else if (clazz == classOf[Char]) defn.CharType
-    else if (clazz == classOf[Short]) defn.ShortType
-    else if (clazz == classOf[Int]) defn.IntType
-    else if (clazz == classOf[Long]) defn.LongType
-    else if (clazz == classOf[Float]) defn.FloatType
-    else if (clazz == classOf[Double]) defn.DoubleType
-    else if (clazz == classOf[Unit]) defn.UnitType
-    else if (!clazz.isMemberClass) ctx.getClassIfDefined(clazz.getCanonicalName).typeRef
-    else {
+    if (clazz.isPrimitive) {
+      if (clazz == classOf[Boolean]) defn.BooleanType
+      else if (clazz == classOf[Byte]) defn.ByteType
+      else if (clazz == classOf[Char]) defn.CharType
+      else if (clazz == classOf[Short]) defn.ShortType
+      else if (clazz == classOf[Int]) defn.IntType
+      else if (clazz == classOf[Long]) defn.LongType
+      else if (clazz == classOf[Float]) defn.FloatType
+      else if (clazz == classOf[Double]) defn.DoubleType
+      else defn.UnitType
+    } else if (clazz.isMemberClass) {
       val name = clazz.getSimpleName.toTypeName
       val enclosing = classToType(clazz.getEnclosingClass)
       if (enclosing.member(name).exists) enclosing.select(name)
       else {
         enclosing.classSymbol.companionModule.termRef.select(name)
       }
-    }
+    } else ctx.getClassIfDefined(clazz.getCanonicalName).typeRef
   }
 }