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/*
* Copyright (c) 2017 ARM Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef ARM_COMPUTE_TEST_COMMANDLINEPARSER
#define ARM_COMPUTE_TEST_COMMANDLINEPARSER
#include "../Utils.h"
#include "Option.h"
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>
namespace arm_compute
{
namespace test
{
namespace framework
{
/** Class to parse command line arguments. */
class CommandLineParser final
{
public:
/** Default constructor. */
CommandLineParser() = default;
/** Function to add a new option to the parser.
*
* @param[in] name Name of the option. Will be available under --name=VALUE.
* @param[in] args Option specific configuration arguments.
*
* @return Pointer to the option. The option is owned by the parser.
*/
template <typename T, typename... As>
T *add_option(const std::string &name, As &&... args);
/** Function to add a new positional argument to the parser.
*
* @param[in] args Option specific configuration arguments.
*
* @return Pointer to the option. The option is owned by the parser.
*/
template <typename T, typename... As>
T *add_positional_option(As &&... args);
/** Parses the command line arguments and updates the options accordingly.
*
* @param[in] argc Number of arguments.
* @param[in] argv Arguments.
*/
void parse(int argc, char **argv);
/** Validates the previously parsed command line arguments.
*
* Validation fails if not all required options are provided. Additionally
* warnings are generated for options that have illegal values or unknown
* options.
*
* @return True if all required options have been provided.
*/
bool validate() const;
/** Prints a help message for all configured options.
*
* @param[in] program_name Name of the program to be used in the help message.
*/
void print_help(const std::string &program_name) const;
private:
using OptionsMap = std::map<std::string, std::unique_ptr<Option>>;
using PositionalOptionsVector = std::vector<std::unique_ptr<Option>>;
OptionsMap _options{};
PositionalOptionsVector _positional_options{};
std::vector<std::string> _unknown_options{};
std::vector<std::string> _invalid_options{};
};
template <typename T, typename... As>
inline T *CommandLineParser::add_option(const std::string &name, As &&... args)
{
auto result = _options.emplace(name, support::cpp14::make_unique<T>(name, std::forward<As>(args)...));
return static_cast<T *>(result.first->second.get());
}
template <typename T, typename... As>
inline T *CommandLineParser::add_positional_option(As &&... args)
{
_positional_options.emplace_back(support::cpp14::make_unique<T>(std::forward<As>(args)...));
return static_cast<T *>(_positional_options.back().get());
}
} // namespace framework
} // namespace test
} // namespace arm_compute
#endif /* ARM_COMPUTE_TEST_COMMANDLINEPARSER */
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