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

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

//++
// File:        MICmdArgValBase.cpp
//
// Overview:    CMICmdArgValBase implementation.
//
// Environment: Compilers:  Visual C++ 12.
//                          gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
//              Libraries:  See MIReadmetxt.
//
// Copyright:   None.
//--

// In-house headers:
#include "MICmdArgValBase.h"
#include "MIUtilString.h"
#include "MICmdArgContext.h"

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValBase constructor.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValBase::CMICmdArgValBase(void)
    : m_bFound(false)
    , m_bValid(false)
    , m_bMandatory(false)
    , m_bHandled(false)
    , m_bIsMissingOptions(false)
{
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValBase 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.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValBase::CMICmdArgValBase(const CMIUtilString &vrArgName, const bool vbMandatory, const bool vbHandleByCmd)
    : m_bFound(false)
    , m_bValid(false)
    , m_bMandatory(vbMandatory)
    , m_strArgName(vrArgName)
    , m_bHandled(vbHandleByCmd)
    , m_bIsMissingOptions(false)
{
}

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

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the state flag of whether the argument is handled by the command or
//          not.
// Type:    Method.
// Args:    None.
// Return:  True - Command needs more information.
//          False - All information is present as expected.
// Throws:  None.
//--
bool
CMICmdArgValBase::GetIsMissingOptions(void) const
{
    return m_bIsMissingOptions;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the state flag of whether the argument is handled by the command or
//          not.
// Type:    Method.
// Args:    None.
// Return:  True - Command handles *this argument or option.
//          False - Not handled (argument specified but ignored).
// Throws:  None.
//--
bool
CMICmdArgValBase::GetIsHandledByCmd(void) const
{
    return m_bHandled;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the name of *this argument.
// Type:    Method.
// Args:    None.
// Return:  CMIUtilString & - Return the text name.
// Throws:  None.
//--
const CMIUtilString &
CMICmdArgValBase::GetName(void) const
{
    return m_strArgName;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the state flag of whether the argument was found in the command's
//          argument / options string.
// Type:    Method.
// Args:    None.
// Return:  True - Argument found.
//          False - Argument not found.
// Throws:  None.
//--
bool
CMICmdArgValBase::GetFound(void) const
{
    return m_bFound;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the state flag indicating whether the value was obtained from the
//          text arguments string and is valid.
// Type:    Method.
// Args:    None.
// Return:  True - Argument valid.
//          False - Argument not valid.
// Throws:  None.
//--
bool
CMICmdArgValBase::GetValid(void) const
{
    return m_bValid;
}

//++ ------------------------------------------------------------------------------------
// Details: Retrieve the state flag indicating whether *this argument is a mandatory
//          argument for the command or is optional to be present.
// Type:    Method.
// Args:    None.
// Return:  True - Mandatory.
//          False - Optional.
// Throws:  None.
//--
bool
CMICmdArgValBase::GetIsMandatory(void) const
{
    return m_bMandatory;
}

//++ ------------------------------------------------------------------------------------
// Details: Parse the command's argument options string and try to extract the value *this
//          argument is looking for.
// Type:    Overrideable.
// Args:    vArgContext - (RW) The command's argument options string.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdArgValBase::Validate(CMICmdArgContext &vwArgContext)
{
    MIunused(vwArgContext);

    // Override to implement

    return MIstatus::failure;
}