time_range_boundary.hpp

// DO NOT EDIT! This file was auto-generated by crates/build/re_types_builder/src/codegen/cpp/mod.rs
// Based on "crates/store/re_types/definitions/rerun/datatypes/visible_time_range.fbs".
 
#pragma once
 
#include "../result.hpp"
#include "time_int.hpp"
 
#include <cstdint>
#include <cstring>
#include <memory>
#include <new>
#include <utility>
 
namespace arrow {
    class Array;
    class DataType;
    class DenseUnionBuilder;
} // namespace arrow
 
namespace rerun::datatypes {
    namespace detail {
        /// \private
        enum class TimeRangeBoundaryTag : uint8_t {
            /// Having a special empty state makes it possible to implement move-semantics. We need to be able to leave the object in a state which we can run the destructor on.
            None = 0,
            CursorRelative,
            Absolute,
            Infinite,
        };
 
        /// \private
        union TimeRangeBoundaryData {
            /// Boundary is a value relative to the time cursor.
            rerun::datatypes::TimeInt cursor_relative;
 
            /// Boundary is an absolute value.
            rerun::datatypes::TimeInt absolute;
 
            TimeRangeBoundaryData() {
                std::memset(reinterpret_cast<void*>(this), 0, sizeof(TimeRangeBoundaryData));
            }
 
            ~TimeRangeBoundaryData() {}
 
            void swap(TimeRangeBoundaryData& other) noexcept {
                // This bitwise swap would fail for self-referential types, but we don't have any of those.
                char temp[sizeof(TimeRangeBoundaryData)];
                void* otherbytes = reinterpret_cast<void*>(&other);
                void* thisbytes = reinterpret_cast<void*>(this);
                std::memcpy(temp, thisbytes, sizeof(TimeRangeBoundaryData));
                std::memcpy(thisbytes, otherbytes, sizeof(TimeRangeBoundaryData));
                std::memcpy(otherbytes, temp, sizeof(TimeRangeBoundaryData));
            }
        };
    } // namespace detail
 
    /// **Datatype**: Left or right boundary of a time range.
    struct TimeRangeBoundary {
        TimeRangeBoundary() : _tag(detail::TimeRangeBoundaryTag::None) {}
 
        /// Copy constructor
        TimeRangeBoundary(const TimeRangeBoundary& other) : _tag(other._tag) {
            const void* otherbytes = reinterpret_cast<const void*>(&other._data);
            void* thisbytes = reinterpret_cast<void*>(&this->_data);
            std::memcpy(thisbytes, otherbytes, sizeof(detail::TimeRangeBoundaryData));
        }
 
        TimeRangeBoundary& operator=(const TimeRangeBoundary& other) noexcept {
            TimeRangeBoundary tmp(other);
            this->swap(tmp);
            return *this;
        }
 
        TimeRangeBoundary(TimeRangeBoundary&& other) noexcept : TimeRangeBoundary() {
            this->swap(other);
        }
 
        TimeRangeBoundary& operator=(TimeRangeBoundary&& other) noexcept {
            this->swap(other);
            return *this;
        }
 
        void swap(TimeRangeBoundary& other) noexcept {
            std::swap(this->_tag, other._tag);
            this->_data.swap(other._data);
        }
 
        /// Boundary is a value relative to the time cursor.
        static TimeRangeBoundary cursor_relative(rerun::datatypes::TimeInt cursor_relative) {
            TimeRangeBoundary self;
            self._tag = detail::TimeRangeBoundaryTag::CursorRelative;
            new (&self._data.cursor_relative) rerun::datatypes::TimeInt(std::move(cursor_relative));
            return self;
        }
 
        /// Boundary is an absolute value.
        static TimeRangeBoundary absolute(rerun::datatypes::TimeInt absolute) {
            TimeRangeBoundary self;
            self._tag = detail::TimeRangeBoundaryTag::Absolute;
            new (&self._data.absolute) rerun::datatypes::TimeInt(std::move(absolute));
            return self;
        }
 
        /// The boundary extends to infinity.
        static TimeRangeBoundary infinite() {
            TimeRangeBoundary self;
            self._tag = detail::TimeRangeBoundaryTag::Infinite;
            return self;
        }
 
        /// Return a pointer to cursor_relative if the union is in that state, otherwise `nullptr`.
        const rerun::datatypes::TimeInt* get_cursor_relative() const {
            if (_tag == detail::TimeRangeBoundaryTag::CursorRelative) {
                return &_data.cursor_relative;
            } else {
                return nullptr;
            }
        }
 
        /// Return a pointer to absolute if the union is in that state, otherwise `nullptr`.
        const rerun::datatypes::TimeInt* get_absolute() const {
            if (_tag == detail::TimeRangeBoundaryTag::Absolute) {
                return &_data.absolute;
            } else {
                return nullptr;
            }
        }
 
        /// Returns true if the union is in the infinite state.
        bool is_infinite() const {
            return _tag == detail::TimeRangeBoundaryTag::Infinite;
        }
 
        /// \private
        const detail::TimeRangeBoundaryData& get_union_data() const {
            return _data;
        }
 
        /// \private
        detail::TimeRangeBoundaryTag get_union_tag() const {
            return _tag;
        }
 
      private:
        detail::TimeRangeBoundaryTag _tag;
        detail::TimeRangeBoundaryData _data;
    };
} // namespace rerun::datatypes
 
namespace rerun {
    template <typename T>
    struct Loggable;
 
    /// \private
    template <>
    struct Loggable<datatypes::TimeRangeBoundary> {
        static constexpr const char Name[] = "rerun.datatypes.TimeRangeBoundary";
 
        /// Returns the arrow data type this type corresponds to.
        static const std::shared_ptr<arrow::DataType>& arrow_datatype();
 
        /// Serializes an array of `rerun::datatypes::TimeRangeBoundary` into an arrow array.
        static Result<std::shared_ptr<arrow::Array>> to_arrow(
            const datatypes::TimeRangeBoundary* instances, size_t num_instances
        );
 
        /// Fills an arrow array builder with an array of this type.
        static rerun::Error fill_arrow_array_builder(
            arrow::DenseUnionBuilder* builder, const datatypes::TimeRangeBoundary* elements,
            size_t num_elements
        );
    };
} // namespace rerun