hanchenye-llvm-project/lldb/tools/lldb-mi/MICmdArgValListOfN.cpp

//===-- MICmdArgValListOfN.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 "MICmdArgValListOfN.h"
#include "MICmdArgContext.h"
#include "MICmdArgValFile.h"
#include "MICmdArgValNumber.h"
#include "MICmdArgValOptionLong.h"
#include "MICmdArgValOptionShort.h"
#include "MICmdArgValString.h"
#include "MICmdArgValThreadGrp.h"

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValListOfN constructor.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValListOfN::CMICmdArgValListOfN(void)
{
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValListOfN constructor.
// Type:    Method.
// Args:    vrArgName       - (R) Argument's name to search by.
//          vbMandatory     - (R) True = Yes must be present, false = optional argument.
//          vbHandleByCmd   - (R) True = Command processes *this option, false = not handled.
//          veType          - (R) The type of argument to look for and create argument object of a certain type.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValListOfN::CMICmdArgValListOfN(const CMIUtilString &vrArgName, const bool vbMandatory, const bool vbHandleByCmd,
                                         const ArgValType_e veType)
    : CMICmdArgValListBase(vrArgName, vbMandatory, vbHandleByCmd, veType)
{
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValListOfN destructor.
// Type:    Overridden.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValListOfN::~CMICmdArgValListOfN(void)
{
}

//++ ------------------------------------------------------------------------------------
// Details: Parse the command's argument options string and try to extract the list of
//          arguments based on the argument object type to look for.
// Type:    Overridden.
// Args:    vwArgContext    - (RW) The command's argument options string.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdArgValListOfN::Validate(CMICmdArgContext &vwArgContext)
{
    if (m_eArgType >= eArgValType_count)
    {
        m_eArgType = eArgValType_invalid;
        return MIstatus::failure;
    }

    if (vwArgContext.IsEmpty())
        return MIstatus::success;

    const CMIUtilString &rArg(vwArgContext.GetArgsLeftToParse());
    if (IsListOfN(rArg) && CreateList(rArg))
    {
        m_bFound = true;
        m_bValid = true;
        vwArgContext.RemoveArg(rArg);
        return MIstatus::success;
    }
    else
        return MIstatus::failure;
}

//++ ------------------------------------------------------------------------------------
// Details: Create list of argument objects each holding a value extract from the command
//          options line.
// Type:    Method.
// Args:    vrTxt   - (R) Some options text.
// Return:  bool -  True = yes valid arg, false = no.
// Throws:  None.
//--
bool
CMICmdArgValListOfN::CreateList(const CMIUtilString &vrTxt)
{
    CMIUtilString::VecString_t vecOptions;
    if ((m_eArgType == eArgValType_StringQuoted) || (m_eArgType == eArgValType_StringQuotedNumber) ||
        (m_eArgType == eArgValType_StringQuotedNumberPath) || (m_eArgType == eArgValType_StringAnything))
    {
        if (vrTxt.SplitConsiderQuotes(" ", vecOptions) == 0)
            return MIstatus::failure;
    }
    else if (vrTxt.Split(" ", vecOptions) == 0)
        return MIstatus::failure;

    CMIUtilString::VecString_t::const_iterator it = vecOptions.begin();
    while (it != vecOptions.end())
    {
        const CMIUtilString &rOption = *it;
        CMICmdArgValBase *pOption = CreationObj(rOption, m_eArgType);
        if (pOption != nullptr)
            m_argValue.push_back(pOption);
        else
            return MIstatus::failure;

        // Next
        ++it;
    }

    return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details: Examine the string and determine if it is a valid string type argument.
// Type:    Method.
// Args:    vrTxt   - (R) Some text.
// Return:  bool -  True = yes valid arg, false = no.
// Throws:  None.
//--
bool
CMICmdArgValListOfN::IsListOfN(const CMIUtilString &vrTxt) const
{
    CMIUtilString::VecString_t vecOptions;
    if ((m_eArgType == eArgValType_StringQuoted) || (m_eArgType == eArgValType_StringQuotedNumber) ||
        (m_eArgType == eArgValType_StringQuotedNumberPath) || (m_eArgType == eArgValType_StringAnything))
    {
        if (vrTxt.SplitConsiderQuotes(" ", vecOptions) == 0)
            return false;
    }
    else if (vrTxt.Split(" ", vecOptions) == 0)
        return false;

    CMIUtilString::VecString_t::const_iterator it = vecOptions.begin();
    while (it != vecOptions.end())
    {
        const CMIUtilString &rOption = *it;
        if (!IsExpectedCorrectType(rOption, m_eArgType))
            break;

        // Next
        ++it;
    }

    return true;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the list of CMICmdArgValBase derived option objects found following
//          *this long option argument. For example "list-thread-groups [ --recurse 1 ]"
//          where 1 is the list of expected option to follow.
// Type:    Method.
// Args:    None.
// Return:  CMICmdArgValListBase::VecArgObjPtr_t & -    List of options.
// Throws:  None.
//--
const CMICmdArgValListBase::VecArgObjPtr_t &
CMICmdArgValListOfN::GetExpectedOptions(void) const
{
    return m_argValue;
}