Set enum ValueType for :: (#5298)

lib/symboldatabase.cpp

@@ -6414,10 +6414,14 @@ void SymbolDatabase::setValueType(Token* tok, const ValueType& valuetype, Source
             if (it != typeScope->varlist.end())
                 var = &*it;
         }
-        if (var)
+        if (var) {
             setValueType(parent, *var);
             return;
         }
+        if (const Enumerator* enu = parent->astOperand2()->enumerator())
+            setValueType(parent, *enu);
+        return;
+    }
 
     // range for loop, auto
     if (vt2 &&

test/testsymboldatabase.cpp

@@ -384,6 +384,7 @@ private:
         TEST_CASE(enum10); // #11001
         TEST_CASE(enum11);
         TEST_CASE(enum12);
+        TEST_CASE(enum13);
 
         TEST_CASE(sizeOfType);
 
@@ -5701,6 +5702,23 @@ private:
         ASSERT_EQUALS(e->enumerator(), E0);
     }
 
+    void enum13() {
+        GET_SYMBOL_DB("struct S { enum E { E0, E1 }; };\n"
+                      "void f(bool b) {\n"
+                      "    auto e = b ? S::E0 : S::E1;\n"
+                      "}\n");
+        ASSERT(db != nullptr);
+        auto it = db->scopeList.begin();
+        std::advance(it, 2);
+        const Enumerator* E1 = it->findEnumerator("E1");
+        ASSERT(E1 && E1->value_known);
+        ASSERT_EQUALS(E1->value, 1);
+        const Token* const a = Token::findsimplematch(tokenizer.tokens(), "auto");
+        ASSERT(a && a->valueType());
+        TODO_ASSERT(E1->scope == a->valueType()->typeScope);
+        ASSERT_EQUALS(a->valueType()->type, ValueType::INT);
+    }
+
     void sizeOfType() {
         // #7615 - crash in Symboldatabase::sizeOfType()
         GET_SYMBOL_DB("enum e;\n"