From 700c024e1366b3478934237e27ead75009ac0c41 Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Thu, 29 Dec 2016 19:32:43 +0100
Subject: [PATCH] fixes #5148

---
 compiler/semexprs.nim     | 2 +-
 tests/enum/tenumalias.nim | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 tests/enum/tenumalias.nim

diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim
index 45d973d860..54a3013221 100644
--- a/compiler/semexprs.nim
+++ b/compiler/semexprs.nim
@@ -903,7 +903,7 @@ proc makeDeref(n: PNode): PNode =
 
 const
   tyTypeParamsHolders = {tyGenericInst, tyCompositeTypeClass}
-  tyDotOpTransparent = {tyVar, tyPtr, tyRef}
+  tyDotOpTransparent = {tyVar, tyPtr, tyRef, tyAlias}
 
 proc readTypeParameter(c: PContext, typ: PType,
                        paramName: PIdent, info: TLineInfo): PNode =
diff --git a/tests/enum/tenumalias.nim b/tests/enum/tenumalias.nim
new file mode 100644
index 0000000000..2d1f70d0e8
--- /dev/null
+++ b/tests/enum/tenumalias.nim
@@ -0,0 +1,7 @@
+# bug #5148
+
+type
+  A = enum foo, bar
+  B = A
+
+echo B.foo