Class ParseResult

rapidjson/error/error.h:106–135

Result of parsing (wraps ParseErrorCode) ! \ingroup RAPIDJSON_ERRORS \code Document doc; ParseResult ok = doc.Parse("[42]"); if (!ok) { fprintf(stderr, "JSON parse error: %s (%u)", GetParseError_En(ok.Code()), ok.Offset()); exit(EXIT_FAILURE); } \endcode \see GenericReader::Parse, GenericDocument::Parse */

    \see GenericReader::Parse, GenericDocument::Parse
*/
struct ParseResult {
public:
    //! Default constructor, no error.
    ParseResult() : code_(kParseErrorNone), offset_(0) {}
    //! Constructor to set an error.
    ParseResult(ParseErrorCode code, size_t offset) : code_(code), offset_(offset) {}

    //! Get the error code.
    ParseErrorCode Code() const { return code_; }
    //! Get the error offset, if \ref IsError(), 0 otherwise.
    size_t Offset() const { return offset_; }

    //! Conversion to \c bool, returns \c true, iff !\ref IsError().
    operator bool() const { return !IsError(); }
    //! Whether the result is an error.
    bool IsError() const { return code_ != kParseErrorNone; }

    bool operator==(const ParseResult& that) const { return code_ == that.code_; }
    bool operator==(ParseErrorCode code) const { return code_ == code; }
    friend bool operator==(ParseErrorCode code, const ParseResult & err) { return code == err.code_; }

    //! Reset error code.
    void Clear() { Set(kParseErrorNone); }
    //! Update error code and offset.
    void Set(ParseErrorCode code, size_t offset = 0) { code_ = code; offset_ = offset; }

private:
    ParseErrorCode code_;
    size_t offset_;
};

//! Function pointer type of GetParseError().
/*! \ingroup RAPIDJSON_ERRORS