minor changes all over the codebase (final)

src/entt/entity/registry.hpp

@@ -45,7 +45,7 @@ class basic_registry {
     using traits_type = entt_traits<std::underlying_type_t<Entity>>;
 
     template<typename Component>
-    struct pool_handler: storage<Entity, Component> {
+    struct pool_handler final: storage<Entity, Component> {
         static_assert(std::is_same_v<Component, std::decay_t<Component>>);
         std::size_t super{};
 

src/entt/entity/runtime_view.hpp

@@ -60,7 +60,7 @@ class basic_runtime_view {
 
     using underlying_iterator_type = typename sparse_set<Entity>::iterator_type;
 
-    class iterator {
+    class iterator final {
         friend class basic_runtime_view<Entity>;
 
         using direct_type = std::vector<const sparse_set<Entity> *>;

src/entt/entity/sparse_set.hpp

@@ -52,7 +52,7 @@ class sparse_set {
     static_assert(ENTT_PAGE_SIZE && ((ENTT_PAGE_SIZE & (ENTT_PAGE_SIZE - 1)) == 0));
     static constexpr auto entt_per_page = ENTT_PAGE_SIZE / sizeof(typename traits_type::entity_type);
 
-    class iterator {
+    class iterator final {
         friend class sparse_set<Entity>;
 
         using direct_type = std::vector<Entity>;

src/entt/entity/storage.hpp

@@ -52,7 +52,7 @@ class storage: public sparse_set<Entity> {
     using traits_type = entt_traits<std::underlying_type_t<Entity>>;
 
     template<bool Const>
-    class iterator {
+    class iterator final {
         friend class storage<Entity, Type>;
 
         using instance_type = std::conditional_t<Const, const std::vector<Type>, std::vector<Type>>;
@@ -489,7 +489,7 @@ class storage<Entity, Type, std::enable_if_t<ENTT_ENABLE_ETO(Type)>>: public spa
     using traits_type = entt_traits<std::underlying_type_t<Entity>>;
     using underlying_type = sparse_set<Entity>;
 
-    class iterator {
+    class iterator final {
         friend class storage<Entity, Type>;
 
         using index_type = typename traits_type::difference_type;

src/entt/entity/view.hpp

@@ -78,7 +78,7 @@ class basic_view<Entity, exclude_t<Exclude...>, Component...> {
     using unchecked_type = std::array<const sparse_set<Entity> *, (sizeof...(Component) - 1)>;
     using filter_type = std::array<const sparse_set<Entity> *, sizeof...(Exclude)>;
 
-    class iterator {
+    class iterator final {
         friend class basic_view<Entity, exclude_t<Exclude...>, Component...>;
 
         iterator(const sparse_set<Entity> *candidate, unchecked_type other, filter_type ignore, underlying_iterator_type curr) ENTT_NOEXCEPT

src/entt/signal/dispatcher.hpp

@@ -37,7 +37,7 @@ class dispatcher {
     };
 
     template<typename Event>
-    struct pool_handler: basic_pool {
+    struct pool_handler final: basic_pool {
         using signal_type = sigh<void(const Event &)>;
         using sink_type = typename signal_type::sink_type;
 

src/entt/signal/emitter.hpp

@@ -49,7 +49,7 @@ class emitter {
     };
 
     template<typename Event>
-    struct pool_handler: basic_pool {
+    struct pool_handler final: basic_pool {
         using listener_type = std::function<void(const Event &, Derived &)>;
         using element_type = std::pair<bool, listener_type>;
         using container_type = std::list<element_type>;