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//===-- MICmdArgValOptionLong.h ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//++
// File: MICmdArgValOptionLong.h
//
// Overview: CMICmdArgValOptionLong interface.
//
// Environment: Compilers: Visual C++ 12.
// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
// Libraries: See MIReadmetxt.
//
// Copyright: None.
//--
#pragma once
// In-house headers:
#include "MICmdArgValListBase.h"
// Declarations:
class CMICmdArgContext;
class CMIUtilString;
//++ ============================================================================
// Details: MI common code class. Command argument class. Arguments object
// needing specialization derived from the CMICmdArgValBase class.
// An argument knows what type of argument it is and how it is to
// interpret the options (context) string to find and validate a matching
// argument and so extract a value from it.
// If *this argument has expected options following it the option objects
// created to hold each of those option's values belong to *this argument
// object and so are deleted when *this object goes out of scope.
// Based on the Interpreter pattern.
// Gotchas: None.
// Authors: Illya Rudkin 16/04/2014.
// Changes: None.
//--
class CMICmdArgValOptionLong : public CMICmdArgValListBase
{
// Methods:
public:
/* ctor */ CMICmdArgValOptionLong( void );
/* ctor */ CMICmdArgValOptionLong( const CMIUtilString & vrArgName, const bool vbMandatory, const bool vbHandleByCmd );
/* ctor */ CMICmdArgValOptionLong( const CMIUtilString & vrArgName, const bool vbMandatory, const bool vbHandleByCmd, const ArgValType_e veType, const MIuint vnExpectingNOptions );
//
bool IsArgLongOption( const CMIUtilString & vrTxt ) const;
const VecArgObjPtr_t & GetExpectedOptions( void ) const;
template< class T1, typename T2 >
bool GetExpectedOption( T2 & vrwValue ) const;
// Overridden:
public:
// From CMICmdArgValBase
/* dtor */ virtual ~CMICmdArgValOptionLong( void );
// From CMICmdArgSet::IArg
virtual bool Validate( CMICmdArgContext & vArgContext );
// Methods:
protected:
bool ExtractExpectedOptions( CMICmdArgContext & vrwTxt, const MIuint nArgIndex );
// Overrideable:
protected:
virtual bool IsArgOptionCorrect( const CMIUtilString & vrTxt ) const;
virtual bool ArgNameMatch( const CMIUtilString & vrTxt ) const;
// Methods:
private:
void Destroy( void );
// Attributes:
private:
MIuint m_nExpectingNOptions; // The number of options expected to read following *this argument
VecArgObjPtr_t m_vecArgsExpected; // The option objects holding the value extracted following *this argument
ArgValType_e m_eExpectingOptionType; // The type of options expected to read following *this argument
};
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the first argument or option value from the list of 1 or more options
// parsed from the command's options string.
// Type: Template method.
// Args: vrwValue - (W) Templated type return value.
// T1 - The argument value's class type of the data hold in the list of options.
// T2 - The type pf the variable which holds the value wanted.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed. List of object was empty.
// Throws: None.
//--
template< class T1, typename T2 >
bool CMICmdArgValOptionLong::GetExpectedOption( T2 & vrwValue ) const
{
const VecArgObjPtr_t & rVecOptions( GetExpectedOptions() );
VecArgObjPtr_t::const_iterator it2 = rVecOptions.begin();
if( it2 != rVecOptions.end() )
{
const T1 * pOption = static_cast< T1 * >( *it2 );
vrwValue = pOption->GetValue();
return MIstatus::success;
}
return MIstatus::failure;
}
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