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-rw-r--r--src/dotty/tools/dotc/TypeErasure.scala19
1 files changed, 12 insertions, 7 deletions
diff --git a/src/dotty/tools/dotc/TypeErasure.scala b/src/dotty/tools/dotc/TypeErasure.scala
index 7920667e7..3f9149214 100644
--- a/src/dotty/tools/dotc/TypeErasure.scala
+++ b/src/dotty/tools/dotc/TypeErasure.scala
@@ -317,9 +317,19 @@ class TypeErasure(isJava: Boolean, isSemi: Boolean, isConstructor: Boolean, wild
if (cls is Package) tp
else {
def eraseTypeRef(p: TypeRef) = this(p).asInstanceOf[TypeRef]
- val parents: List[TypeRef] =
+ val parents: List[TypeRef] = {
if ((cls eq defn.ObjectClass) || cls.isPrimitiveValueClass) Nil
- else removeLaterObjects(classParents.mapConserve(eraseTypeRef))
+ else {
+ def normalize(trs: List[TypeRef])(implicit ctx: Context): List[TypeRef] = trs match {
+ case tr :: trs1 =>
+ assert(!tr.classSymbol.is(Trait), cls)
+ val tr1 = if (cls is Trait) defn.ObjectClass.typeRef else tr
+ tr1 :: trs1.filterNot(_ isRef defn.ObjectClass)
+ case nil => nil
+ }
+ normalize(classParents.mapConserve(eraseTypeRef))
+ }
+ }
val erasedDecls = decls.filteredScope(d => !d.isType || d.isClass)
tp.derivedClassInfo(NoPrefix, parents, erasedDecls, erasedRef(tp.selfType))
// can't replace selftype by NoType because this would lose the sourceModule link
@@ -376,11 +386,6 @@ class TypeErasure(isJava: Boolean, isSemi: Boolean, isConstructor: Boolean, wild
cls
}
- private def removeLaterObjects(trs: List[TypeRef])(implicit ctx: Context): List[TypeRef] = trs match {
- case tr :: trs1 => tr :: trs1.filterNot(_ isRef defn.ObjectClass)
- case nil => nil
- }
-
/** The name of the type as it is used in `Signature`s.
* Need to ensure correspondence with erasure!
*/