52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
#ifndef ENTT_META_CTX_HPP
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#define ENTT_META_CTX_HPP
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#include "../container/dense_map.hpp"
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#include "../core/fwd.hpp"
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#include "../core/utility.hpp"
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namespace entt {
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class meta_ctx;
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/*! @cond TURN_OFF_DOXYGEN */
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namespace internal {
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struct meta_type_node;
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struct meta_context {
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dense_map<id_type, meta_type_node, identity> value{};
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[[nodiscard]] inline static meta_context &from(meta_ctx &ctx);
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[[nodiscard]] inline static const meta_context &from(const meta_ctx &ctx);
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};
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} // namespace internal
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/*! @endcond */
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/*! @brief Disambiguation tag for constructors and the like. */
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class meta_ctx_arg_t final {};
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/*! @brief Constant of type meta_context_arg_t used to disambiguate calls. */
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inline constexpr meta_ctx_arg_t meta_ctx_arg{};
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/*! @brief Opaque meta context type. */
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class meta_ctx: private internal::meta_context {
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// attorney idiom like model to access the base class
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friend struct internal::meta_context;
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};
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/*! @cond TURN_OFF_DOXYGEN */
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[[nodiscard]] inline internal::meta_context &internal::meta_context::from(meta_ctx &ctx) {
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return ctx;
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}
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[[nodiscard]] inline const internal::meta_context &internal::meta_context::from(const meta_ctx &ctx) {
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return ctx;
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}
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/*! @endcond */
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} // namespace entt
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#endif
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