llvm-project/lldb/tools/lldb-mi/MICmdArgValNumber.cpp

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

//++
// File:		MICmdArgValNumber.cpp
//
// Overview:	CMICmdArgValNumber 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 "MICmdArgValNumber.h"
#include "MICmdArgContext.h"

//++ ------------------------------------------------------------------------------------
// Details:	CMICmdArgValNumber constructor.
// Type:	Method.
// Args:	None.
// Return:	None.
// Throws:	None.
//--
CMICmdArgValNumber::CMICmdArgValNumber( void )
:	m_nNumber( 0 )
{
}

//++ ------------------------------------------------------------------------------------
// Details:	CMICmdArgValNumber 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.
//--
CMICmdArgValNumber::CMICmdArgValNumber( const CMIUtilString & vrArgName, const bool vbMandatory, const bool vbHandleByCmd )
:	CMICmdArgValBaseTemplate( vrArgName, vbMandatory, vbHandleByCmd )
,	m_nNumber( 0 )
{
}

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

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

	if( vwArgContext.GetNumberArgsPresent() == 1 )
	{
		const CMIUtilString & rArg( vwArgContext.GetArgsLeftToParse() ); 
		if( IsArgNumber( rArg ) && ExtractNumber( rArg ) )
		{
			m_bFound = true;
			m_bValid = true;
			m_argValue = GetNumber();
			vwArgContext.RemoveArg( rArg );
			return MIstatus::success;
		}
		else
			return MIstatus::failure;
	}
	
	// More than one option...
	const CMIUtilString::VecString_t vecOptions( vwArgContext.GetArgs() );
	CMIUtilString::VecString_t::const_iterator it = vecOptions.begin();
	while( it != vecOptions.end() )
	{
		const CMIUtilString & rArg( *it ); 
		if( IsArgNumber( rArg ) && ExtractNumber( rArg ) )
		{
			m_bFound = true;
				
			if( vwArgContext.RemoveArg( rArg ) )
			{
				m_bValid = true;
				m_argValue = GetNumber();
				return MIstatus::success;
			}
			else
				return MIstatus::failure;
		}
		
		// Next
		++it;
	}

	return MIstatus::failure;
}

//++ ------------------------------------------------------------------------------------
// 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 CMICmdArgValNumber::IsArgNumber( const CMIUtilString & vrTxt ) const
{
	// Look for --someLongOption
	if( std::string::npos != vrTxt.find( "--" ) )
		return false;
	
	return vrTxt.IsNumber();
}

//++ ------------------------------------------------------------------------------------
// Details:	Extract the thread group number from the thread group argument.
// Type:	Method.
// Args:	vrTxt	- (R) Some text.
// Return:	MIstatus::success - Functional succeeded.
//			MIstatus::failure - Functional failed.
// Throws:	None.
//--
bool CMICmdArgValNumber::ExtractNumber( const CMIUtilString & vrTxt ) 
{
	MIint64 nNumber = 0;
	bool bOk = vrTxt.ExtractNumber( nNumber );
	if( bOk )
	{
		m_nNumber = static_cast< MIint >( nNumber );
	}
	
	return bOk;
}

//++ ------------------------------------------------------------------------------------
// Details:	Retrieve the thread group ID found in the argument.
// Type:	Method.
// Args:	None.
// Return:	MIuint - Thread group ID.
// Throws:	None.
//--
MIint64 CMICmdArgValNumber::GetNumber( void ) const
{
	return m_nNumber;
}