Method AddNull

eval/LANE_evaluation/lane2d/src/CJsonObject.cpp:1591–1636

#endif

bool CJsonObject::AddNull(const std::string& strKey)
{
    cJSON* pFocusData = NULL;
    if (m_pJsonData != NULL)
    {
        pFocusData = m_pJsonData;
    }
    else if (m_pExternJsonDataRef != NULL)
    {
        pFocusData = m_pExternJsonDataRef;
    }
    else
    {
        m_pJsonData = cJSON_CreateObject();
        m_pKeyTravers = m_pJsonData;
        pFocusData = m_pJsonData;
    }

    if (pFocusData == NULL)
    {
        m_strErrMsg = "json data is null!";
        return(false);
    }
    if (pFocusData->type != cJSON_Object)
    {
        m_strErrMsg = "not a json object! json array?";
        return(false);
    }
    if (cJSON_GetObjectItem(pFocusData, strKey.c_str()) != NULL)
    {
        m_strErrMsg = "key exists!";
        return(false);
    }
    cJSON* pJsonStruct = cJSON_CreateNull();
    if (pJsonStruct == NULL)
    {
        return(false);
    }
    cJSON_AddItemToObject(pFocusData, strKey.c_str(), pJsonStruct);
    if (cJSON_GetObjectItem(pFocusData, strKey.c_str()) == NULL)
    {
        return(false);
    }
    m_pKeyTravers = pFocusData;
    return(true);
}

bool CJsonObject::Delete(const std::string& strKey)
{