lldb/tools/lldb-mi/MICmdArgSet.cpp

//===-- MICmdArgSet.cpp -----------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// In-house headers:
#include "MICmdArgSet.h"
#include "MICmdArgValBase.h"
#include "MICmnResources.h"
#include "MICmnLog.h"

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgSet constructor.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdArgSet::CMICmdArgSet()
    : m_bIsArgsPresentButNotHandledByCmd(false)
    , m_constStrCommaSpc(", ")
{
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgSet destructor.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdArgSet::~CMICmdArgSet()
{
    // Tidy up
    Destroy();
}

//++ ------------------------------------------------------------------------------------
// Details: Release resources used by *this container object.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
void
CMICmdArgSet::Destroy()
{
    // Delete command argument objects
    if (!m_setCmdArgs.empty())
    {
        SetCmdArgs_t::iterator it = m_setCmdArgs.begin();
        while (it != m_setCmdArgs.end())
        {
            CMICmdArgValBase *pArg(*it);
            delete pArg;

            // Next
            ++it;
        }
        m_setCmdArgs.clear();
    }

    m_setCmdArgsThatNotValid.clear();
    m_setCmdArgsThatAreMissing.clear();
    m_setCmdArgsNotHandledByCmd.clear();
    m_setCmdArgsMissingInfo.clear();
    m_bIsArgsPresentButNotHandledByCmd = false;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the state flag indicating that the command set up ready to parse
//          command arguments or options found that one or more arguments was indeed
//          present but not handled. This is given as a warning in the MI log file.
// Type:    Method.
// Args:    None.
// Return:  bool - True = one or more args not handled, false = all args handled
// Throws:  None.
//--
bool
CMICmdArgSet::IsArgsPresentButNotHandledByCmd() const
{
    return m_bIsArgsPresentButNotHandledByCmd;
}

//++ ------------------------------------------------------------------------------------
// Details: Add the list of command's arguments to parse and validate another one.
// Type:    Method.
// Args:    vArg    - (R) A command argument object.
// Return:  None.
// Throws:  None.
//--
void
CMICmdArgSet::Add(CMICmdArgValBase *vArg)
{
    m_setCmdArgs.push_back(vArg);
}

//++ ------------------------------------------------------------------------------------
// Details: After validating an options line of text (the context) and there is a failure,
//          it is likely a mandatory command argument that is required is missing. This
//          function returns the argument that should be present.
// Type:    Method.
// Args:    None.
// Return:  SetCmdArgs_t & - Set of argument objects.
// Throws:  None.
//--
const CMICmdArgSet::SetCmdArgs_t &
CMICmdArgSet::GetArgsThatAreMissing() const
{
    return m_setCmdArgsThatAreMissing;
}

//++ ------------------------------------------------------------------------------------
// Details: After validating an options line of text (the context) and there is a failure,
//          it may be because one or more arguments were unable to extract a value. This
//          function returns the argument that were found to be invalid.
// Type:    Method.
// Args:    None.
// Return:  SetCmdArgs_t & - Set of argument objects.
// Throws:  None.
//--
const CMICmdArgSet::SetCmdArgs_t &
CMICmdArgSet::GetArgsThatInvalid() const
{
    return m_setCmdArgsThatNotValid;
}

//++ ------------------------------------------------------------------------------------
// Details: The list of argument or option (objects) that were specified by the command
//          and so recognised when parsed but were not handled. Ideally the command
//          should handle all arguments and options presented to it. The command sends
//          warning to the MI log file to say that these options were not handled.
//          Used as one way to determine option that maybe should really be implemented
//          and not just ignored.
// Type:    Method.
// Args:    None.
// Return:  SetCmdArgs_t & - Set of argument objects.
// Throws:  None.
//--
const CMICmdArgSet::SetCmdArgs_t &
CMICmdArgSet::GetArgsNotHandledByCmd() const
{
    return m_setCmdArgsNotHandledByCmd;
}

//++ ------------------------------------------------------------------------------------
// Details: Given a set of command argument objects parse the context option string to
//          find those argument and retrieve their value. If the function fails call
//          GetArgsThatAreMissing() to see which commands that were mandatory were
//          missing or failed to parse.
// Type:    Method.
// Args:    vStrMiCmd       - (R)  Command's name.
//          vCmdArgsText    - (RW) A command's options or argument.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdArgSet::Validate(const CMIUtilString &vStrMiCmd, CMICmdArgContext &vwCmdArgsText)
{
    m_cmdArgContext = vwCmdArgsText;

    // Iterate all the arguments or options required by a command
    SetCmdArgs_t::const_iterator it = m_setCmdArgs.begin();
    while (it != m_setCmdArgs.end())
    {
        CMICmdArgValBase *pArg = *it;

        if (!pArg->Validate(vwCmdArgsText))
        {
            if (pArg->GetFound())
            {
                if (pArg->GetIsMissingOptions())
                    m_setCmdArgsMissingInfo.push_back(pArg);
                else if (!pArg->GetValid())
                    m_setCmdArgsThatNotValid.push_back(pArg);
            }
            else if (pArg->GetIsMandatory())
                m_setCmdArgsThatAreMissing.push_back(pArg);
        }

        if (pArg->GetFound() && !pArg->GetIsHandledByCmd())
        {
            m_bIsArgsPresentButNotHandledByCmd = true;
            m_setCmdArgsNotHandledByCmd.push_back(pArg);
        }

        // Next
        ++it;
    }

    // report any issues with arguments/options
    if (IsArgsPresentButNotHandledByCmd())
        WarningArgsNotHandledbyCmdLogFile(vStrMiCmd);

    return ValidationFormErrorMessages(vwCmdArgsText);
}

//++ ------------------------------------------------------------------------------------
// Details: Having validated the command's options text and failed for some reason form
//          the error message made up with the faults found.
// Type:    Method.
//          vCmdArgsText    - (RW) A command's options or argument.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdArgSet::ValidationFormErrorMessages(const CMICmdArgContext &vwCmdArgsText)
{
    CMIUtilString strListMissing;
    CMIUtilString strListInvalid;
    CMIUtilString strListMissingInfo;
    const bool bArgsMissing = (m_setCmdArgsThatAreMissing.size() > 0);
    const bool bArgsInvalid = (m_setCmdArgsThatNotValid.size() > 0);
    const bool bArgsMissingInfo = (m_setCmdArgsMissingInfo.size() > 0);
    if (!(bArgsMissing || bArgsInvalid || bArgsMissingInfo))
        return MIstatus::success;
    if (bArgsMissing)
    {
        MIuint i = 0;
        SetCmdArgs_t::const_iterator it = m_setCmdArgsThatAreMissing.begin();
        while (it != m_setCmdArgsThatAreMissing.end())
        {
            if (i++ > 0)
                strListMissing += m_constStrCommaSpc;

            const CMICmdArgValBase *pArg(*it);
            strListMissing += pArg->GetName();

            // Next
            ++it;
        }
    }
    if (bArgsInvalid)
    {
        MIuint i = 0;
        SetCmdArgs_t::const_iterator it = m_setCmdArgsThatNotValid.begin();
        while (it != m_setCmdArgsThatNotValid.end())
        {
            if (i++ > 0)
                strListMissing += m_constStrCommaSpc;

            const CMICmdArgValBase *pArg(*it);
            strListInvalid += pArg->GetName();

            // Next
            ++it;
        }
    }
    if (bArgsMissingInfo)
    {
        MIuint i = 0;
        SetCmdArgs_t::const_iterator it = m_setCmdArgsMissingInfo.begin();
        while (it != m_setCmdArgsMissingInfo.end())
        {
            if (i++ > 0)
                strListMissingInfo += m_constStrCommaSpc;

            const CMICmdArgValBase *pArg(*it);
            strListMissingInfo += pArg->GetName();

            // Next
            ++it;
        }
    }

    bool bHaveOneError = false;
    CMIUtilString strError = MIRSRC(IDS_CMD_ARGS_ERR_PREFIX_MSG);
    if (bArgsMissing && bArgsInvalid)
    {
        bHaveOneError = true;
        strError += CMIUtilString::Format(MIRSRC(IDS_CMD_ARGS_ERR_VALIDATION_MAN_INVALID), strListMissing.c_str(), strListInvalid.c_str());
    }
    if (bArgsMissing)
    {
        if (bHaveOneError)
            strError += ". ";
        bHaveOneError = true;
        strError += CMIUtilString::Format(MIRSRC(IDS_CMD_ARGS_ERR_VALIDATION_MANDATORY), strListMissing.c_str());
    }
    if (bArgsMissingInfo)
    {
        if (bHaveOneError)
            strError += ". ";
        bHaveOneError = true;
        strError += CMIUtilString::Format(MIRSRC(IDS_CMD_ARGS_ERR_VALIDATION_MISSING_INF), strListMissingInfo.c_str());
    }
    if (bArgsInvalid)
    {
        if (bHaveOneError)
            strError += ". ";
        bHaveOneError = true;
        strError += CMIUtilString::Format(MIRSRC(IDS_CMD_ARGS_ERR_VALIDATION_INVALID), strListInvalid.c_str());
    }
    if (!vwCmdArgsText.IsEmpty())
    {
        if (bHaveOneError)
            strError += ". ";
        bHaveOneError = true;
        strError += CMIUtilString::Format(MIRSRC(IDS_CMD_ARGS_ERR_CONTEXT_NOT_ALL_EATTEN), vwCmdArgsText.GetArgsLeftToParse().c_str());
    }

    if (bHaveOneError)
    {
        SetErrorDescription(strError);
        return MIstatus::failure;
    }

    return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details: Ask if the command's argument options text had any arguments.
// Type:    Method.
// Args:    None.
// Return:  bool    - True = Has one or more arguments present, false = no arguments.
// Throws:  None.
//--
bool
CMICmdArgSet::IsArgContextEmpty() const
{
    return m_cmdArgContext.IsEmpty();
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the number of arguments that are being used for the command.
// Type:    Method.
// Args:    None.
// Return:  size_t - Argument count.
// Throws:  None.
//--
size_t
CMICmdArgSet::GetCount() const
{
    return m_setCmdArgs.size();
}

//++ ------------------------------------------------------------------------------------
// Details: Given a set of command argument objects retrieve the argument with the
//          specified name.
// Type:    Method.
// Args:    vpArg   - (W) A pointer to a command's argument object.
// Return:  True - Argument found.
//          False - Argument not found.
// Throws:  None.
//--
bool
CMICmdArgSet::GetArg(const CMIUtilString &vArgName, CMICmdArgValBase *&vpArg) const
{
    bool bFound = false;
    SetCmdArgs_t::const_iterator it = m_setCmdArgs.begin();
    while (it != m_setCmdArgs.end())
    {
        CMICmdArgValBase *pArg(*it);
        if (pArg->GetName() == vArgName)
        {
            bFound = true;
            vpArg = pArg;
            break;
        }

        // Next
        ++it;
    }

    return bFound;
}

//++ ------------------------------------------------------------------------------------
// Details: Write a warning message to the MI Log file about the command's arguments or
//          options that were found present but not handled.
// Type:    Method.
// Args:    vrCmdName   - (R) The command's name.
// Return:  None.
// Throws:  None.
//--
void
CMICmdArgSet::WarningArgsNotHandledbyCmdLogFile(const CMIUtilString &vrCmdName)
{
#if MICONFIG_GIVE_WARNING_CMD_ARGS_NOT_HANDLED

    CMIUtilString strArgsNotHandled;
    const CMICmdArgSet::SetCmdArgs_t &rSetArgs = GetArgsNotHandledByCmd();
    MIuint nCnt = 0;
    CMICmdArgSet::SetCmdArgs_t::const_iterator it = rSetArgs.begin();
    while (it != rSetArgs.end())
    {
        if (nCnt++ > 0)
            strArgsNotHandled += m_constStrCommaSpc;
        const CMICmdArgValBase *pArg = *it;
        strArgsNotHandled += pArg->GetName();

        // Next
        ++it;
    }

    const CMIUtilString strWarningMsg(
        CMIUtilString::Format(MIRSRC(IDS_CMD_WRN_ARGS_NOT_HANDLED), vrCmdName.c_str(), strArgsNotHandled.c_str()));
    m_pLog->WriteLog(strWarningMsg);

#endif // MICONFIG_GIVE_WARNING_CMD_ARGS_NOT_HANDLED
}