From 1133ab6a9a7fe6664be50e5f4871bd7e3c416bb5 Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Fri, 22 Sep 2017 12:07:26 +0200
Subject: [PATCH] Add missing case in factories

---
 doc-tool/src/dotty/tools/dottydoc/model/factories.scala | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc-tool/src/dotty/tools/dottydoc/model/factories.scala b/doc-tool/src/dotty/tools/dottydoc/model/factories.scala
index 4208fd7608f2..2f76859395c1 100644
--- a/doc-tool/src/dotty/tools/dottydoc/model/factories.scala
+++ b/doc-tool/src/dotty/tools/dottydoc/model/factories.scala
@@ -120,6 +120,9 @@ object factories {
 
       case ref @ RefinedType(parent, rn, info) =>
         expandTpe(parent) //FIXME: will be a refined HK, aka class Foo[X] { def bar: List[X] } or similar
+
+      case ref: TypeArgRef =>
+        expandTpe(ref.underlying)
     }
 
     expandTpe(t)