modifier_allocator_size.hpp

Go to the documentation of this file.

 
 
#ifndef ECSTASY_REGISTRY_CONCEPTS_MODIFIERALLOCATORSIZE_HPP_
#define ECSTASY_REGISTRY_CONCEPTS_MODIFIERALLOCATORSIZE_HPP_
 
#include "ecstasy/query/concepts/Modifier.hpp"
#include "ecstasy/query/concepts/Queryable.hpp"
#include "ecstasy/registry/concepts/RegistryModifier.hpp"
 
namespace ecstasy
{
    template <typename... Qs>
    struct modifiers_allocator_size : public std::integral_constant<size_t, 0> {};
 
    template <typename Q>
    struct modifier_allocator_size : public std::integral_constant<size_t, 0> {};
 
    template <RegistryModifier M>
    struct modifier_allocator_size<M> : public modifier_allocator_size<typename M::Modifier> {};
 
    template <query::Modifier M>
    struct modifier_allocator_size<M>
        : public std::integral_constant<size_t, sizeof(M) + modifier_allocator_size<typename M::Operands>::value> {};
 
    template <typename Q, typename... Qs>
    struct modifier_allocator_size<util::meta::Traits<Q, Qs...>>
        : public std::integral_constant<size_t, modifiers_allocator_size<Q, Qs...>::value> {};
 
    template <typename Q>
    size_t constexpr modifier_allocator_size_v = modifier_allocator_size<Q>::value;
 
    template <typename Q, typename... Qs>
    struct modifiers_allocator_size<Q, Qs...>
        : public std::integral_constant<size_t, modifier_allocator_size_v<Q> + modifiers_allocator_size<Qs...>::value> {
    };
 
    template <typename Q, typename... Qs>
    size_t constexpr modifiers_allocator_size_v = modifiers_allocator_size<Q, Qs...>::value;
 
} // namespace ecstasy
 
#endif /* !ECSTASY_REGISTRY_CONCEPTS_MODIFIERALLOCATORSIZE_HPP_ */