//===----------------------------------------------------------------------===// // DuckDB // // duckdb/common/optional_idx.hpp // // //===----------------------------------------------------------------------===// #pragma once #include "duckdb/common/exception.hpp" namespace duckdb { class optional_idx { static constexpr const idx_t INVALID_INDEX = idx_t(-1); public: optional_idx() : index(INVALID_INDEX) { } optional_idx(idx_t index) : index(index) { // NOLINT: allow implicit conversion from idx_t if (index == INVALID_INDEX) { throw InternalException("optional_idx cannot be initialized with an invalid index"); } } static optional_idx Invalid() { return INVALID_INDEX; } bool IsValid() const { return index != DConstants::INVALID_INDEX; } idx_t GetIndex() { if (index == INVALID_INDEX) { throw InternalException("Attempting to get the index of an optional_idx that is not set"); } return index; } private: idx_t index; }; } // namespace duckdb