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meta: make basic meta container traits publicly available

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This commit is contained in:
skypjack
2023-07-22 11:41:46 +02:00
committed by Michele Caini
parent e15894872d
commit c425199239
1 changed files with 38 additions and 26 deletions
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64
src/entt/meta/container.hpp
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@@ -44,10 +44,23 @@ struct reserve_aware_container: std::false_type {};
template<typename Type>
struct reserve_aware_container<Type, std::void_t<decltype(&Type::reserve)>>: std::true_type {};
} // namespace internal
/**
* Internal details not to be documented.
* @endcond
*/
/**
* @brief General purpose implementation of meta sequence container traits.
* @tparam Type Type of underlying sequence container.
*/
template<typename Type>
struct basic_meta_sequence_container_traits {
class basic_meta_sequence_container_traits {
static_assert(std::is_same_v<Type, std::remove_cv_t<std::remove_reference_t<Type>>>, "Unexpected type");
friend meta_sequence_container;
using operation = internal::meta_container_operation;
using size_type = typename meta_sequence_container::size_type;
using iterator = typename meta_sequence_container::iterator;
@@ -57,21 +70,21 @@ struct basic_meta_sequence_container_traits {
case operation::size:
return static_cast<const Type *>(cvalue)->size();
case operation::clear:
if constexpr(dynamic_sequence_container<Type>::value) {
if constexpr(internal::dynamic_sequence_container<Type>::value) {
static_cast<Type *>(value)->clear();
return true;
} else {
break;
}
case operation::reserve:
if constexpr(reserve_aware_container<Type>::value) {
if constexpr(internal::reserve_aware_container<Type>::value) {
static_cast<Type *>(value)->reserve(*static_cast<const size_type *>(cvalue));
return true;
} else {
break;
}
case operation::resize:
if constexpr(dynamic_sequence_container<Type>::value) {
if constexpr(internal::dynamic_sequence_container<Type>::value) {
static_cast<Type *>(value)->resize(*static_cast<const size_type *>(cvalue));
return true;
} else {
@@ -95,7 +108,7 @@ struct basic_meta_sequence_container_traits {
return true;
case operation::insert:
case operation::erase:
if constexpr(dynamic_sequence_container<Type>::value) {
if constexpr(internal::dynamic_sequence_container<Type>::value) {
auto *const non_const = any_cast<typename Type::iterator>(&it->base());
typename Type::const_iterator underlying{non_const ? *non_const : any_cast<const typename Type::const_iterator &>(it->base())};
@@ -122,16 +135,22 @@ struct basic_meta_sequence_container_traits {
}
};
/**
* @brief General purpose implementation of meta associative container traits.
* @tparam Type Type of underlying associative container.
*/
template<typename Type>
struct basic_meta_associative_container_traits {
class basic_meta_associative_container_traits {
static_assert(std::is_same_v<Type, std::remove_cv_t<std::remove_reference_t<Type>>>, "Unexpected type");
friend meta_associative_container;
static constexpr auto key_only = internal::key_only_associative_container<Type>::value;
using operation = internal::meta_container_operation;
using size_type = typename meta_associative_container::size_type;
using iterator = typename meta_associative_container::iterator;
static constexpr auto key_only = key_only_associative_container<Type>::value;
static size_type basic_vtable(const operation op, const meta_ctx &ctx, const void *cvalue, void *value, meta_any *key, iterator *it) {
switch(op) {
case operation::size:
@@ -140,7 +159,7 @@ struct basic_meta_associative_container_traits {
static_cast<Type *>(value)->clear();
return true;
case operation::reserve:
if constexpr(reserve_aware_container<Type>::value) {
if constexpr(internal::reserve_aware_container<Type>::value) {
static_cast<Type *>(value)->reserve(*static_cast<const size_type *>(cvalue));
return true;
} else {
@@ -200,20 +219,13 @@ struct basic_meta_associative_container_traits {
}
};
} // namespace internal
/**
* Internal details not to be documented.
* @endcond
*/
/**
* @brief Meta sequence container traits for `std::vector`s of any type.
* @tparam Args Template arguments for the container.
*/
template<typename... Args>
struct meta_sequence_container_traits<std::vector<Args...>>
: internal::basic_meta_sequence_container_traits<std::vector<Args...>> {};
: basic_meta_sequence_container_traits<std::vector<Args...>> {};
/**
* @brief Meta sequence container traits for `std::array`s of any type.
@@ -222,7 +234,7 @@ struct meta_sequence_container_traits<std::vector<Args...>>
*/
template<typename Type, auto N>
struct meta_sequence_container_traits<std::array<Type, N>>
: internal::basic_meta_sequence_container_traits<std::array<Type, N>> {};
: basic_meta_sequence_container_traits<std::array<Type, N>> {};
/**
* @brief Meta sequence container traits for `std::list`s of any type.
@@ -230,7 +242,7 @@ struct meta_sequence_container_traits<std::array<Type, N>>
*/
template<typename... Args>
struct meta_sequence_container_traits<std::list<Args...>>
: internal::basic_meta_sequence_container_traits<std::list<Args...>> {};
: basic_meta_sequence_container_traits<std::list<Args...>> {};
/**
* @brief Meta sequence container traits for `std::deque`s of any type.
@@ -238,7 +250,7 @@ struct meta_sequence_container_traits<std::list<Args...>>
*/
template<typename... Args>
struct meta_sequence_container_traits<std::deque<Args...>>
: internal::basic_meta_sequence_container_traits<std::deque<Args...>> {};
: basic_meta_sequence_container_traits<std::deque<Args...>> {};
/**
* @brief Meta associative container traits for `std::map`s of any type.
@@ -246,7 +258,7 @@ struct meta_sequence_container_traits<std::deque<Args...>>
*/
template<typename... Args>
struct meta_associative_container_traits<std::map<Args...>>
: internal::basic_meta_associative_container_traits<std::map<Args...>> {};
: basic_meta_associative_container_traits<std::map<Args...>> {};
/**
* @brief Meta associative container traits for `std::unordered_map`s of any
@@ -255,7 +267,7 @@ struct meta_associative_container_traits<std::map<Args...>>
*/
template<typename... Args>
struct meta_associative_container_traits<std::unordered_map<Args...>>
: internal::basic_meta_associative_container_traits<std::unordered_map<Args...>> {};
: basic_meta_associative_container_traits<std::unordered_map<Args...>> {};
/**
* @brief Meta associative container traits for `std::set`s of any type.
@@ -263,7 +275,7 @@ struct meta_associative_container_traits<std::unordered_map<Args...>>
*/
template<typename... Args>
struct meta_associative_container_traits<std::set<Args...>>
: internal::basic_meta_associative_container_traits<std::set<Args...>> {};
: basic_meta_associative_container_traits<std::set<Args...>> {};
/**
* @brief Meta associative container traits for `std::unordered_set`s of any
@@ -272,7 +284,7 @@ struct meta_associative_container_traits<std::set<Args...>>
*/
template<typename... Args>
struct meta_associative_container_traits<std::unordered_set<Args...>>
: internal::basic_meta_associative_container_traits<std::unordered_set<Args...>> {};
: basic_meta_associative_container_traits<std::unordered_set<Args...>> {};
/**
* @brief Meta associative container traits for `dense_map`s of any type.
@@ -280,7 +292,7 @@ struct meta_associative_container_traits<std::unordered_set<Args...>>
*/
template<typename... Args>
struct meta_associative_container_traits<dense_map<Args...>>
: internal::basic_meta_associative_container_traits<dense_map<Args...>> {};
: basic_meta_associative_container_traits<dense_map<Args...>> {};
/**
* @brief Meta associative container traits for `dense_set`s of any type.
@@ -288,7 +300,7 @@ struct meta_associative_container_traits<dense_map<Args...>>
*/
template<typename... Args>
struct meta_associative_container_traits<dense_set<Args...>>
: internal::basic_meta_associative_container_traits<dense_set<Args...>> {};
: basic_meta_associative_container_traits<dense_set<Args...>> {};
} // namespace entt