🎨 Use injected class name in nexus

Author: elbeno

include/cib/nexus.hpp

@@ -16,25 +16,22 @@ namespace cib {
  *
  * @see cib::config
  */
-template <typename Config> struct nexus {
-  private:
-    using this_t = nexus<Config>;
 
+template <typename Config> struct nexus {
 // Workaround unfortunate bug in clang where it can't deduce "auto" sometimes
 #define CIB_BUILD_SERVICE                                                      \
     initialized<Config, Tag>::value.template build<initialized<Config, Tag>>()
 
-  public:
     template <typename Tag>
     constexpr static decltype(CIB_BUILD_SERVICE) service = CIB_BUILD_SERVICE;
 #undef CIB_BUILD_SERVICE
 
     static void init() {
         auto const service = []<typename T> {
-            using from_t = std::remove_cvref_t<decltype(this_t::service<T>)>;
+            using from_t = std::remove_cvref_t<decltype(nexus::service<T>)>;
             using to_t = std::remove_cvref_t<decltype(cib::service<T>)>;
 
-            auto &service_impl = this_t::service<T>;
+            auto &service_impl = nexus::service<T>;
             if constexpr (std::is_convertible_v<from_t, to_t>) {
                 cib::service<T> = service_impl;
             } else {