json_exception.hpp

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#ifndef _json_exception_hpp_
#define _json_exception_hpp_

/*
 * Copyright (c) 2017 Andrew Haisley
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */


#include <stdexcept>

#include "common.hpp"

namespace NAMESPACE
{
    class json_exception : public std::exception
    {
    public:

        static const int max_message_length = 200;

        typedef enum
        {
            invalid_json_type_e, 
            invalid_key_e,
            not_an_array_e,
            not_an_object_e,
            not_number_int_or_boolean_e,
            not_string_e,
            not_number_e,
            array_index_range_e,
            not_number_or_string_e,
            cant_compare_raw_e,
            cant_cast_raw_e,
            types_not_comparable_e,
            pointer_not_matched_e,
            pointer_token_type_invalid_e,

            fgetc_failed_e,
            read_failed_e,
            unexpected_result_from_read_e,
            write_fd_failed_e,
            write_file_failed_e,
            too_many_put_back_e,
            file_open_failed_e,

            invalid_character_e,
            invalid_number_e,
            number_out_of_range_e,
            number_too_long_e,
            string_too_long_e,
            unexpected_eof_e,
            unexpected_token_e,
            message_too_long_e,
            maximum_nesting_depth_exceeded_e,

            invalid_string_escape_e,
            invalid_string_encoding_e,
            invalid_unicode_e,
            invalid_utf8_char_e,
            invalid_utf8_sequence_length_e,
            invalid_hex_char_e,
            invalid_hex_number_e,

            syntax_error_in_pointer_string_e
        }
        exception_type;

        json_exception(exception_type et) noexcept;

        json_exception(exception_type et, const char *json_type_name) noexcept;

        json_exception(
                exception_type et, 
                const char     *first_json_type_name,
                const char     *second_json_type_name) noexcept;

        exception_type get_type() const noexcept;

        virtual const char *what() const noexcept;

    protected:

        char m_message[max_message_length];

        exception_type m_type;

    };

    std::ostream &operator<<(std::ostream& stream, const json_exception &e);
}

#endif