meta: static_cast only vtable for meta associative containers

src/entt/meta/container.hpp

@@ -147,7 +147,7 @@ class basic_meta_associative_container_traits {
     using size_type = typename meta_associative_container::size_type;
     using iterator = typename meta_associative_container::iterator;
 
-    static size_type basic_vtable(const operation op, const void *cvalue, void *value, const meta_any *key, iterator *it) {
+    static size_type basic_vtable(const operation op, const void *cvalue, void *value, const void *key, iterator *it) {
         switch(op) {
         case operation::size:
             return static_cast<const Type *>(cvalue)->size();
@@ -179,17 +179,17 @@ class basic_meta_associative_container_traits {
             return true;
         case operation::insert:
             if constexpr(key_only) {
-                return static_cast<Type *>(value)->insert(key->cast<const typename Type::key_type &>()).second;
+                return static_cast<Type *>(value)->insert(*static_cast<const typename Type::key_type *>(key)).second;
             } else {
-                return static_cast<Type *>(value)->emplace(key->cast<const typename Type::key_type &>(), static_cast<meta_any *>(const_cast<void *>(cvalue))->cast<const typename Type::mapped_type &>()).second;
+                return static_cast<Type *>(value)->emplace(*static_cast<const typename Type::key_type *>(key), *static_cast<const typename Type::mapped_type *>(cvalue)).second;
             }
         case operation::erase:
-            return static_cast<Type *>(value)->erase(key->cast<const typename Type::key_type &>());
+            return static_cast<Type *>(value)->erase(*static_cast<const typename Type::key_type *>(key));
         case operation::find:
             if(value) {
-                it->rebind<key_only>(static_cast<Type *>(value)->find(key->cast<const typename Type::key_type &>()));
+                it->rebind<key_only>(static_cast<Type *>(value)->find(*static_cast<const typename Type::key_type *>(key)));
             } else {
-                it->rebind<key_only>(static_cast<const Type *>(cvalue)->find(key->cast<const typename Type::key_type &>()));
+                it->rebind<key_only>(static_cast<const Type *>(cvalue)->find(*static_cast<const typename Type::key_type *>(key)));
             }
 
             return true;

src/entt/meta/meta.hpp

@@ -137,7 +137,7 @@ private:
     internal::meta_type_node (*key_type_node)(const internal::meta_context &){};
     internal::meta_type_node (*mapped_type_node)(const internal::meta_context &){};
     internal::meta_type_node (*value_type_node)(const internal::meta_context &){};
-    size_type (*vtable)(const operation, const void *, void *, const meta_any *, iterator *){};
+    size_type (*vtable)(const operation, const void *, void *, const void *, iterator *){};
     any storage{};
 };
 
@@ -1922,7 +1922,8 @@ inline bool meta_associative_container::reserve(const size_type sz) {
  * @return A bool denoting whether the insertion took place.
  */
 inline bool meta_associative_container::insert(meta_any key, meta_any value = {}) {
-    return (storage.policy() != any_policy::cref) && key.allow_cast(meta_type{*ctx, key_type_node(internal::meta_context::from(*ctx))}) && (!mapped_type_node || value.allow_cast(meta_type{*ctx, mapped_type_node(internal::meta_context::from(*ctx))})) && vtable(operation::insert, &value, storage.data(), &key, nullptr);
+    const bool valid_key_value = key.allow_cast(meta_type{*ctx, key_type_node(internal::meta_context::from(*ctx))}) && (!mapped_type_node || value.allow_cast(meta_type{*ctx, mapped_type_node(internal::meta_context::from(*ctx))}));
+    return valid_key_value && (storage.policy() != any_policy::cref) && vtable(operation::insert, std::as_const(value).data(), storage.data(), std::as_const(key).data(), nullptr);
 }
 
 /**
@@ -1931,7 +1932,8 @@ inline bool meta_associative_container::insert(meta_any key, meta_any value = {}
  * @return A bool denoting whether the removal took place.
  */
 inline meta_associative_container::size_type meta_associative_container::erase(meta_any key) {
-    return (storage.policy() != any_policy::cref) && key.allow_cast(meta_type{*ctx, key_type_node(internal::meta_context::from(*ctx))}) && vtable(operation::erase, nullptr, storage.data(), &key, nullptr);
+    const bool valid_key = key.allow_cast(meta_type{*ctx, key_type_node(internal::meta_context::from(*ctx))});
+    return valid_key && (storage.policy() != any_policy::cref) && vtable(operation::erase, nullptr, storage.data(), std::as_const(key).data(), nullptr);
 }
 
 /**
@@ -1942,7 +1944,7 @@ inline meta_associative_container::size_type meta_associative_container::erase(m
 [[nodiscard]] inline meta_associative_container::iterator meta_associative_container::find(meta_any key) {
     iterator it{*ctx};
     const void *data = std::as_const(storage).data();
-    key.allow_cast(meta_type{*ctx, key_type_node(internal::meta_context::from(*ctx))}) && vtable(operation::find, data, storage.policy() == any_policy::cref ? nullptr : const_cast<void *>(data), &key, &it);
+    key.allow_cast(meta_type{*ctx, key_type_node(internal::meta_context::from(*ctx))}) && vtable(operation::find, data, storage.policy() == any_policy::cref ? nullptr : const_cast<void *>(data), std::as_const(key).data(), &it);
     return it;
 }