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meta: reduce uses of node in meta_any

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This commit is contained in:
skypjack
2025-09-03 17:00:22 +02:00
parent 9b44fa47d0
commit 626b882f26
1 changed files with 24 additions and 18 deletions
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42
src/entt/meta/meta.hpp
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@@ -157,34 +157,40 @@ private:
/*! @brief Opaque wrapper for values of any type. */
class meta_any {
using vtable_type = void(const meta_ctx &, void *, const void *, void *);
using vtable_type = void(const internal::meta_traits, const meta_ctx &, void *, const void *, void *);
template<typename Type>
static void basic_vtable([[maybe_unused]] const meta_ctx &area, [[maybe_unused]] void *value, [[maybe_unused]] const void *as_const, [[maybe_unused]] void *other) {
static void basic_vtable([[mayb_unused]] const internal::meta_traits req, [[maybe_unused]] const meta_ctx &area, [[maybe_unused]] void *value, [[maybe_unused]] const void *as_const, [[maybe_unused]] void *other) {
static_assert(std::is_same_v<std::remove_cv_t<std::remove_reference_t<Type>>, Type>, "Invalid type");
if constexpr(is_meta_pointer_like_v<Type>) {
if constexpr(std::is_function_v<typename std::pointer_traits<Type>::element_type>) {
static_cast<meta_any *>(other)->emplace<Type>(*static_cast<const Type *>(as_const));
} else if constexpr(!std::is_void_v<std::remove_const_t<typename std::pointer_traits<Type>::element_type>>) {
using in_place_type = decltype(adl_meta_pointer_like<Type>::dereference(std::declval<const Type &>()));
if(req == internal::meta_traits::is_pointer_like) {
if constexpr(std::is_function_v<typename std::pointer_traits<Type>::element_type>) {
static_cast<meta_any *>(other)->emplace<Type>(*static_cast<const Type *>(as_const));
} else if constexpr(!std::is_void_v<std::remove_const_t<typename std::pointer_traits<Type>::element_type>>) {
using in_place_type = decltype(adl_meta_pointer_like<Type>::dereference(std::declval<const Type &>()));
if constexpr(std::is_constructible_v<bool, Type>) {
if(const auto &pointer_like = *static_cast<const Type *>(as_const); pointer_like) {
static_cast<meta_any *>(other)->emplace<in_place_type>(adl_meta_pointer_like<Type>::dereference(pointer_like));
if constexpr(std::is_constructible_v<bool, Type>) {
if(const auto &pointer_like = *static_cast<const Type *>(as_const); pointer_like) {
static_cast<meta_any *>(other)->emplace<in_place_type>(adl_meta_pointer_like<Type>::dereference(pointer_like));
}
} else {
static_cast<meta_any *>(other)->emplace<in_place_type>(adl_meta_pointer_like<Type>::dereference(*static_cast<const Type *>(as_const)));
}
} else {
static_cast<meta_any *>(other)->emplace<in_place_type>(adl_meta_pointer_like<Type>::dereference(*static_cast<const Type *>(as_const)));
}
}
}
if constexpr(is_complete_v<meta_sequence_container_traits<Type>>) {
*static_cast<meta_sequence_container *>(other) = (value == nullptr) ? meta_sequence_container{area, *static_cast<const Type *>(as_const)} : meta_sequence_container{area, *static_cast<Type *>(value)};
if(req == internal::meta_traits::is_sequence_container) {
*static_cast<meta_sequence_container *>(other) = (value == nullptr) ? meta_sequence_container{area, *static_cast<const Type *>(as_const)} : meta_sequence_container{area, *static_cast<Type *>(value)};
}
}
if constexpr(is_complete_v<meta_associative_container_traits<Type>>) {
*static_cast<meta_associative_container *>(other) = (value == nullptr) ? meta_associative_container{area, *static_cast<const Type *>(as_const)} : meta_associative_container{area, *static_cast<Type *>(value)};
if(req == internal::meta_traits::is_associative_container) {
*static_cast<meta_associative_container *>(other) = (value == nullptr) ? meta_associative_container{area, *static_cast<const Type *>(as_const)} : meta_associative_container{area, *static_cast<Type *>(value)};
}
}
}
@@ -546,14 +552,14 @@ public:
*/
[[nodiscard]] meta_sequence_container as_sequence_container() noexcept {
meta_sequence_container proxy{};
if(!!(node.traits & internal::meta_traits::is_sequence_container)) { vtable(*ctx, storage.data(), std::as_const(storage).data(), &proxy); }
if(vtable != nullptr) { vtable(internal::meta_traits::is_sequence_container, *ctx, storage.data(), std::as_const(storage).data(), &proxy); }
return proxy;
}
/*! @copydoc as_sequence_container */
[[nodiscard]] meta_sequence_container as_sequence_container() const noexcept {
meta_sequence_container proxy{};
if(!!(node.traits & internal::meta_traits::is_sequence_container)) { vtable(*ctx, nullptr, storage.data(), &proxy); }
if(vtable != nullptr) { vtable(internal::meta_traits::is_sequence_container, *ctx, nullptr, storage.data(), &proxy); }
return proxy;
}
@@ -563,14 +569,14 @@ public:
*/
[[nodiscard]] meta_associative_container as_associative_container() noexcept {
meta_associative_container proxy{};
if(!!(node.traits & internal::meta_traits::is_associative_container)) { vtable(*ctx, storage.data(), std::as_const(storage).data(), &proxy); }
if(vtable != nullptr) { vtable(internal::meta_traits::is_associative_container, *ctx, storage.data(), std::as_const(storage).data(), &proxy); }
return proxy;
}
/*! @copydoc as_associative_container */
[[nodiscard]] meta_associative_container as_associative_container() const noexcept {
meta_associative_container proxy{};
if(!!(node.traits & internal::meta_traits::is_associative_container)) { vtable(*ctx, nullptr, storage.data(), &proxy); }
if(vtable != nullptr) { vtable(internal::meta_traits::is_associative_container, *ctx, nullptr, storage.data(), &proxy); }
return proxy;
}
@@ -581,7 +587,7 @@ public:
*/
[[nodiscard]] meta_any operator*() const noexcept {
meta_any ret{meta_ctx_arg, *ctx};
if(!!(node.traits & internal::meta_traits::is_pointer_like)) { vtable(*ctx, nullptr, storage.data(), &ret); }
if(vtable != nullptr) { vtable(internal::meta_traits::is_pointer_like, *ctx, nullptr, storage.data(), &ret); }
return ret;
}