================
@@ -0,0 +1,50 @@
+// RUN: %check_clang_tidy -std=c++11-or-later %s
cppcoreguidelines-use-enum-class %t
+
+enum E {};
+// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: enum 'E' is unscoped, use 'enum
class' instead
+
+enum class EC {};
+
+struct S {
+ enum E {};
+ // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: enum 'E' is unscoped, use 'enum
class' instead
+ enum class EC {};
+};
+
+class C {
+ enum E {};
+ // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: enum 'E' is unscoped, use 'enum
class' instead
+ enum class EC {};
+};
+
+template<class T>
+class TC {
+ enum E {};
+ // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: enum 'E' is unscoped, use 'enum
class' instead
+ enum class EC {};
+};
+
+union U {
+ enum E {};
+ // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: enum 'E' is unscoped, use 'enum
class' instead
+ enum class EC {};
+};
+
+namespace {
+enum E {};
+// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: enum 'E' is unscoped, use 'enum
class' instead
+enum class EC {};
+} // namespace
+
+namespace N {
+enum E {};
+// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: enum 'E' is unscoped, use 'enum
class' instead
+enum class EC {};
+} // namespace N
+
+template<enum ::EC>
+static void foo();
+
+enum ForwardE : int;
+// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: enum 'ForwardE' is unscoped, use
'enum class' instead
+enum class ForwardEC : int;
----------------
carlosgalvezp wrote:
It would be good to add a test with `enum struct` as well, Jason Turner shows
that unconventional pattern a lot.
https://github.com/llvm/llvm-project/pull/138282
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