From bda9f707cc0cefc2fc686f6b9ec9d0d9fe3998b7 Mon Sep 17 00:00:00 2001
From: chrchr-github <78114321+chrchr-github@users.noreply.github.com>
Date: Fri, 21 Apr 2023 18:58:44 +0200
Subject: [PATCH] Fix typedef in enum class (#4998)

---
 lib/tokenize.cpp             | 2 +-
 test/testsimplifytypedef.cpp | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 7e485f859..f9a9d9603 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -1802,7 +1802,7 @@ void Tokenizer::simplifyTypedefCpp()
                     }
                 }
 
-                simplifyType = simplifyType && !inEnumClass;
+                simplifyType = simplifyType && (!inEnumClass || Token::simpleMatch(tok2->previous(), "="));
 
                 if (simplifyType) {
                     mTypedefInfo.back().used = true;
diff --git a/test/testsimplifytypedef.cpp b/test/testsimplifytypedef.cpp
index 4e9b95915..fc33210c6 100644
--- a/test/testsimplifytypedef.cpp
+++ b/test/testsimplifytypedef.cpp
@@ -3224,6 +3224,14 @@ private:
                                 "enum class E { A };\n";
             ASSERT_EQUALS("enum class E { A } ;", tok(code));
         }
+        {
+            const char code[] = "namespace N {\n"
+                                "    struct S { enum E { E0 }; };\n"
+                                "}\n"
+                                "typedef N::S T;\n"
+                                "enum class E { a = T::E0; };\n";
+            ASSERT_EQUALS("namespace N { struct S { enum E { E0 } ; } ; } enum class E { a = N :: S :: E0 ; } ;", tok(code));
+        }
         { // #11494
             const char code[] = "typedef struct S {} KEY;\n"
                                 "class C { enum E { KEY }; };\n";