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//===-- MICmdArgValListOfN.h ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#pragma once
// Third party headers:
#include <vector>
// In-house headers:
#include "MICmdArgValListBase.h"
// Declarations:
class CMICmdArgContext;
//++ ============================================================================
// 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 .
// The CMICmdArgValBase objects added to *this ListOfN container belong
// to this container and will be deleted when *this object goes out of
// scope.
// To parse arguments like 'thread-id ...' i.e. 1 10 12 13 ...
// If vbMandatory argument is true it takes on the (...)+ specification
// otherwise assumed to be (...)* specification.
// Based on the Interpreter pattern.
//--
class CMICmdArgValListOfN : public CMICmdArgValListBase
{
// Methods:
public:
/* ctor */ CMICmdArgValListOfN();
/* ctor */ CMICmdArgValListOfN(const CMIUtilString &vrArgName, const bool vbMandatory, const bool vbHandleByCmd,
const ArgValType_e veType);
//
const VecArgObjPtr_t &GetExpectedOptions() const;
template <class T1, typename T2> bool GetExpectedOption(T2 &vrwValue, const VecArgObjPtr_t::size_type vnAt = 0) const;
// Overridden:
public:
// From CMICmdArgValBase
/* dtor */ ~CMICmdArgValListOfN() override;
// From CMICmdArgSet::IArg
bool Validate(CMICmdArgContext &vArgContext) override;
// Methods:
private:
bool IsListOfN(const CMIUtilString &vrTxt) const;
bool CreateList(const CMIUtilString &vrTxt);
};
//++ ------------------------------------------------------------------------------------
// 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.
// vnAt - (R) Value at the specific position.
// 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
CMICmdArgValListOfN::GetExpectedOption(T2 &vrwValue, const VecArgObjPtr_t::size_type vnAt) const
{
const VecArgObjPtr_t &rVecOptions(GetExpectedOptions());
if (rVecOptions.size() <= vnAt)
return MIstatus::failure;
VecArgObjPtr_t::const_iterator it2 = rVecOptions.begin() + vnAt;
if (it2 != rVecOptions.end())
{
const T1 *pOption = static_cast<T1 *>(*it2);
vrwValue = pOption->GetValue();
return MIstatus::success;
}
return MIstatus::failure;
}
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