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//===-- MICmdArgValOptionLong.h ---------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#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.
//--
class CMICmdArgValOptionLong : public CMICmdArgValListBase {
// Methods:
public:
/* ctor */ CMICmdArgValOptionLong();
/* 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() const;
template <class T1, typename T2> bool GetExpectedOption(T2 &vrwValue) const;
// Overridden:
public:
// From CMICmdArgValBase
/* dtor */ ~CMICmdArgValOptionLong() override;
// From CMICmdArgSet::IArg
bool Validate(CMICmdArgContext &vArgContext) override;
// 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();
// 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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