From ef7bffc2798cc4ba20ac289b237c1d54a4efefb0 Mon Sep 17 00:00:00 2001
From: tserg <8017125+tserg@users.noreply.github.com>
Date: Mon, 30 Jan 2023 17:38:09 +0800
Subject: [PATCH 1/3] set name for helper

---
 vyper/semantics/types/user.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vyper/semantics/types/user.py b/vyper/semantics/types/user.py
index 926ac09245..8fcd5e270e 100644
--- a/vyper/semantics/types/user.py
+++ b/vyper/semantics/types/user.py
@@ -55,6 +55,9 @@ def __init__(self, name: str, members: dict) -> None:
         # also conveniently checks well-formedness of the members namespace
         self._helper = VyperType(members)
 
+        # set the name for exception handling in `get_member`
+        self._helper._id = name
+
     def get_type_member(self, key: str, node: vy_ast.VyperNode) -> "VyperType":
         self._helper.get_member(key, node)
         return self

From b686c4cde3e56a811241ee55d99091d4842a8b21 Mon Sep 17 00:00:00 2001
From: tserg <8017125+tserg@users.noreply.github.com>
Date: Mon, 30 Jan 2023 17:38:16 +0800
Subject: [PATCH 2/3] add test

---
 tests/parser/syntax/test_enum.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/parser/syntax/test_enum.py b/tests/parser/syntax/test_enum.py
index fe7b9fc83d..8a008a1af5 100644
--- a/tests/parser/syntax/test_enum.py
+++ b/tests/parser/syntax/test_enum.py
@@ -7,6 +7,7 @@
     NamespaceCollision,
     StructureException,
     TypeMismatch,
+    UnknownAttribute,
 )
 
 fail_list = [
@@ -97,6 +98,18 @@ def foo():nonpayable
     """,
         EnumDeclarationException,
     ),
+    (
+        """
+enum Roles:
+    ADMIN
+    USER
+
+@external
+def foo() -> Roles:
+    return Roles.GUEST
+    """,
+        UnknownAttribute,
+    )
 ]
 
 

From e570464b4800e0ec109255544a9c251b22062925 Mon Sep 17 00:00:00 2001
From: tserg <8017125+tserg@users.noreply.github.com>
Date: Mon, 30 Jan 2023 18:35:25 +0800
Subject: [PATCH 3/3] fix lint

---
 tests/parser/syntax/test_enum.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/parser/syntax/test_enum.py b/tests/parser/syntax/test_enum.py
index 8a008a1af5..c13f27f497 100644
--- a/tests/parser/syntax/test_enum.py
+++ b/tests/parser/syntax/test_enum.py
@@ -109,7 +109,7 @@ def foo() -> Roles:
     return Roles.GUEST
     """,
         UnknownAttribute,
-    )
+    ),
 ]