error.hpp

/*
 * CoNLL-U - https://github.com/tugrulgungor/CoNLL-U
 *
 * Copyright (c) 2026. All rights reserved.
 * Tuğrul Güngör - https://conll-u.tugrulgungor.me
 *
 * Distributed under the MIT License.
 * https://opensource.org/license/mit/
 */

 
#ifndef TG_CONLLU_ERROR_HPP
#define TG_CONLLU_ERROR_HPP 1
 
#include <system_error>
 
namespace tg::conllu {
    enum class ErrorCode : int {
        Success = int{0},

        StreamError,
        InsufficientMemory,
        PositionOutOfRange,
        InvalidPointer,

        InvalidColumnsLine,
        InvalidColumnName,
        DuplicateColumnName,
        ColumnNotFound,

        SentenceMustStartWithMetaLine,
        InvalidSentenceMetaLine,
        InvalidSentenceMetaKey,
        DuplicateSentenceMetaEntry,
        MissingSentenceId,
        InvalidSentenceId,
        DuplicateSentenceId,
        SentenceIdCannotBeRemoved,
        SentenceNotFoundInTreebank,

        InvalidTokenId,
        TokenFieldCountMismatch,
        ImmutableTokenField,
        TokenEmptyNodeMismatch,
        NodeNotFoundInToken,
        InvalidTokenHead,
        TokenNotFoundInSentence,
        InvalidNumberOfFields,

        InvalidWordRange,
        OverlappingWordRange,
        WordNotFoundInSentence,
        WordMustAppearBeforeToken,
        InvalidWordFieldValue
    };

    class ErrorCategory final : public std::error_category {
    public:
        [[nodiscard]] constexpr const char* name() const noexcept override;

        [[nodiscard]] constexpr std::string message(int ev) const noexcept override;
    };

    [[nodiscard]] constexpr const ErrorCategory& get_error_category() noexcept;

    [[nodiscard]] constexpr std::error_code make_error_code(ErrorCode ec) noexcept;
} // namespace tg::conllu
 
template <>
struct std::is_error_code_enum<tg::conllu::ErrorCode> : std::true_type {};
 
#include "conllu/impl/error.ipp"
 
#endif // TG_CONLLU_ERROR_HPP