5 files changed, 18 insertions, 14 deletions
diff --git a/src/kernel/NeKit/Config.h b/src/kernel/NeKit/Config.h
index a9ba8b8a..c012e008 100644
--- a/src/kernel/NeKit/Config.h
+++ b/src/kernel/NeKit/Config.h
@@ -16,7 +16,7 @@
 
 #define NE_ICODEC \
   final:          \
- public           \
+  public          \
   ::Kernel::ICodec
 
 /// @brief The **NeKernel** namespace.
@@ -112,12 +112,12 @@ inline Args&& move(Args&& arg) {
 
 template <class Type>
 concept IsSerializable = requires() {
-  {Type::kValue};
+  { Type::kValue };
 };
 
 template <class Type>
 concept IsNotSerializable = requires() {
-  {!Type::kValue};
+  { !Type::kValue };
 };
 
 /// @brief Encoding interface, used as a proxy to convert T to Char*
diff --git a/src/kernel/NeKit/Macros.h b/src/kernel/NeKit/Macros.h
index 3a6e26fa..c0fc57f4 100644
--- a/src/kernel/NeKit/Macros.h
+++ b/src/kernel/NeKit/Macros.h
@@ -15,7 +15,7 @@
 #endif
 
 #ifndef kib_cast
-#define kib_cast(X) (Kernel::UInt64)((X) *1024)
+#define kib_cast(X) (Kernel::UInt64)((X) * 1024)
 #endif
 
 #ifndef MIB
@@ -116,7 +116,7 @@
 #define NE_UNUSED(X) ((Kernel::Void) X)
 
 #ifndef RGB
-#define RGB(R, G, B) ((Kernel::UInt32)((0xFF << 24) | ((R) << 16) | ((G) << 8) | (B)))
+#define RGB(R, G, B) ((Kernel::UInt32) ((0xFF << 24) | ((R) << 16) | ((G) << 8) | (B)))
 #endif  // !RGB
 
 #ifdef __NE_AMD64__
diff --git a/src/kernel/NeKit/Ref.h b/src/kernel/NeKit/Ref.h
index 2c669611..42e6d4ce 100644
--- a/src/kernel/NeKit/Ref.h
+++ b/src/kernel/NeKit/Ref.h
@@ -13,9 +13,8 @@
 #include <NeKit/Vettable.h>
 
 namespace Kernel {
-/// =========================================================== ///
-/// @brief Reference wrapper class.                          ///
-/// =========================================================== ///
+
+/// @brief Reference wrapper class.
 template <typename T>
 class Ref final {
  public:
@@ -67,6 +66,7 @@ class Ref final {
   Type fClass;
 };
 
+/// @brief Non Nullable Reference class.
 template <typename T>
 class NonNullRef final {
  public:
@@ -93,6 +93,7 @@ class NonNullRef final {
 
 using RefAny        = Ref<Any>;
 using NonNullRefAny = NonNullRef<Any>;
+
 }  // namespace Kernel
 
 #endif  // ifndef _NEKIT_REF_H_
diff --git a/src/kernel/NeKit/Utils.h b/src/kernel/NeKit/Utils.h
index 8ee1371b..e28e23eb 100644
--- a/src/kernel/NeKit/Utils.h
+++ b/src/kernel/NeKit/Utils.h
@@ -54,9 +54,9 @@ inline constexpr SizeT oe_string_len(const CharType* str) {
   if (!str) return 0;
 
 #if __cplusplus == 202302L
-  if
-    consteval { return ARRAY_SIZE(str); }
-  else {
+  if consteval {
+    return ARRAY_SIZE(str);
+  } else {
     SizeT len{0};
     while (str[len] != 0) ++len;
     return len;
diff --git a/src/kernel/NeKit/Vettable.h b/src/kernel/NeKit/Vettable.h
index f2056d27..5c2fd211 100644
--- a/src/kernel/NeKit/Vettable.h
+++ b/src/kernel/NeKit/Vettable.h
@@ -11,11 +11,14 @@
 #define NE_VETTABLE static constexpr BOOL kVettable = YES
 #define NE_NON_VETTABLE static constexpr BOOL kVettable = NO
 
+#define NE_UN_VETTABLE static constexpr BOOL kUnvettable = YES
+
 namespace Kernel {
 template <class Type>
-concept IsVettable = requires(Type) {
-  (Type::kVettable);
-};
+concept IsVettable = requires(Type) { (Type::kVettable); };
+
+template <class Type>
+concept IsUnVettable = requires(Type) { (Type::kUnvettable); };
 }  // namespace Kernel
 
 #endif  // !__NE_KIT_VETTABLE_H__