//===-- MICmdArgValConsume.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 "MICmdArgValConsume.h"
#include "MICmdArgContext.h"

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

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValConsume constructor.
// Type:    Method.
// Args:    vrArgName       - (R) Argument's name to search by.
//          vbMandatory     - (R) True = Yes must be present, false = optional argument.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValConsume::CMICmdArgValConsume(const CMIUtilString &vrArgName, const bool vbMandatory)
    : CMICmdArgValBaseTemplate(vrArgName, vbMandatory, true)
{
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValConsume destructor.
// Type:    Overidden.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdArgValConsume::~CMICmdArgValConsume()
{
}

//++ ------------------------------------------------------------------------------------
// Details: Parse the command's argument options string and try to extract the value *this
//          argument is looking for.
// Type:    Overridden.
// Args:    vwArgContext    - (R) The command's argument options string.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdArgValConsume::Validate(CMICmdArgContext &vwArgContext)
{
    if (vwArgContext.IsEmpty())
        return m_bMandatory ? MIstatus::failure : MIstatus::success;

    // Consume the optional file, line, linenum arguments till the mode '--' argument
    const CMIUtilString::VecString_t vecOptions(vwArgContext.GetArgs());
    CMIUtilString::VecString_t::const_iterator it = vecOptions.begin();
    while (it != vecOptions.end())
    {
        const CMIUtilString & rTxt( *it );
        
        if ( rTxt.compare( "--" ) == 0 )
        {
            m_bFound = true;
            m_bValid = true;
            if ( !vwArgContext.RemoveArg( rTxt ) )
                return MIstatus::failure;
            return MIstatus::success;
        }
        // Next
        ++it;
    }

    return MIstatus::failure;
}

//++ ------------------------------------------------------------------------------------
// Details: Nothing to examine as we just want to consume the argument or option (ignore
//          it).
// Type:    Method.
// Args:    None.
// Return:  bool -  True = yes ok, false = not ok.
// Throws:  None.
//--
bool
CMICmdArgValConsume::IsOk() const
{
    return true;
}