From 50f6bb5d36a334c55753a5ee8bf36947889354f1 Mon Sep 17 00:00:00 2001
From: PKEuS <philipp.kloke@web.de>
Date: Mon, 17 Mar 2014 11:50:45 +0100
Subject: [PATCH] Fixed crash #5511.

---
 lib/tokenize.cpp      | 2 +-
 test/testtokenize.cpp | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index fd8cae500..f54eacbe8 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -7369,7 +7369,7 @@ void Tokenizer::simplifyEnum()
             if (tok->next()->str() == ":") {
                 tok = tok->next();
 
-                if (!tok->next()) {
+                if (!tok->next() || !tok->next()->isName()) {
                     syntaxError(tok);
                     return; // can't recover
                 }
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index 12cb43b6f..de1c48794 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -79,6 +79,7 @@ private:
         TEST_CASE(garbageCode5); // #5168
         TEST_CASE(garbageCode6); // #5214
         TEST_CASE(garbageCode7);
+        TEST_CASE(garbageCode8); // #5511
 
         TEST_CASE(simplifyFileAndLineMacro);  // tokenize "return - __LINE__;"
 
@@ -1025,6 +1026,10 @@ private:
         tokenizeAndStringify("foo(Args&&...) fn void = { } auto template<typename... bar(Args&&...)", /*simplify=*/true);
     }
 
+    void garbageCode8() {
+        tokenizeAndStringify("{ enum struct : };", true);
+    }
+
     void simplifyFileAndLineMacro() { // tokenize 'return - __LINE__' correctly
         ASSERT_EQUALS("\"test.cpp\"", tokenizeAndStringify("__FILE__"));
         ASSERT_EQUALS("return -1 ;", tokenizeAndStringify("return - __LINE__;"));