Add Flags.Opaque to reflection API

Author: nicolasstucki

compiler/src/scala/quoted/internal/impl/QuoteContextImpl.scala

@@ -2442,6 +2442,7 @@ class QuoteContextImpl private (ctx: Context) extends QuoteContext, QuoteUnpickl
       def ModuleClass: Flags = dotc.core.Flags.ModuleClass
       def Mutable: Flags = dotc.core.Flags.Mutable
       def Object: Flags = dotc.core.Flags.Module
+      def Opaque: Flags = dotc.core.Flags.Opaque
       def Override: Flags = dotc.core.Flags.Override
       def Package: Flags = dotc.core.Flags.Package
       def Param: Flags = dotc.core.Flags.Param

library/src/scala/quoted/QuoteContext.scala

@@ -3184,6 +3184,9 @@ trait QuoteContext { self: internal.QuoteUnpickler & internal.QuoteMatching =>
       /** Is this symbol an object or its class (used for a ValDef or a ClassDef extends Modifier respectively) */
       def Object: Flags
 
+      /** Is this symbol `opaque` */
+      def Opaque: Flags
+
       /** Is this symbol `override` */
       def Override: Flags
 

scala3doc/src/dotty/dokka/tasty/SyntheticSupport.scala

@@ -31,7 +31,7 @@ trait SyntheticsSupport:
 
     def isDefaultHelperMethod: Boolean = ".*\\$default\\$\\d+$".r.matches(s.name)
 
-    def isOpaque: Boolean = hackIsOpaque(using qctx)(s)
+    def isOpaque: Boolean = s.flags.is(Flags.Opaque)
 
     def isInfix: Boolean = hackIsInfix(using qctx)(s)
 
@@ -77,13 +77,6 @@ trait SyntheticsSupport:
       }.toList
   }
 
-  def hackIsOpaque(using QuoteContext)(rsym: qctx.reflect.Symbol): Boolean = {
-    import dotty.tools.dotc
-    given dotc.core.Contexts.Context = qctx.reflect.rootContext.asInstanceOf
-    val sym = rsym.asInstanceOf[dotc.core.Symbols.Symbol]
-    sym.is(dotc.core.Flags.Opaque)
-  }
-
   def hackGetSupertypes(using QuoteContext)(rdef: qctx.reflect.ClassDef) = {
     import qctx.reflect._
     import dotty.tools.dotc