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151 lines
4.3 KiB
151 lines
4.3 KiB
/*
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* Copyright (c) 2017-2018 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_UTILS_ENUMLISTOPTION
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#define ARM_COMPUTE_UTILS_ENUMLISTOPTION
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#include "Option.h"
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#include <initializer_list>
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#include <set>
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#include <sstream>
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#include <stdexcept>
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#include <string>
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#include <vector>
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namespace arm_compute
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{
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namespace utils
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{
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/** Implementation of an option that accepts any number of values from a fixed set. */
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template <typename T>
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class EnumListOption : public Option
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{
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public:
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/** Construct option with allowed values.
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*
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* @param[in] name Name of the option.
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* @param[in] allowed_values Set of allowed values for the option.
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*/
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EnumListOption(std::string name, std::set<T> allowed_values);
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/** Construct option with allowed values, a fixed number of accepted values and default values for the option.
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*
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* @param[in] name Name of the option.
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* @param[in] allowed_values Set of allowed values for the option.
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* @param[in] default_values Default values.
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*/
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EnumListOption(std::string name, std::set<T> allowed_values, std::initializer_list<T> &&default_values);
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bool parse(std::string value) override;
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std::string help() const override;
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/** Get the values of the option.
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*
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* @return a list of the selected option values.
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*/
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const std::vector<T> &value() const;
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private:
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std::vector<T> _values{};
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std::set<T> _allowed_values{};
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};
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template <typename T>
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inline EnumListOption<T>::EnumListOption(std::string name, std::set<T> allowed_values)
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: Option{ std::move(name) }, _allowed_values{ std::move(allowed_values) }
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{
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}
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template <typename T>
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inline EnumListOption<T>::EnumListOption(std::string name, std::set<T> allowed_values, std::initializer_list<T> &&default_values)
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: Option{ std::move(name), false, true }, _values{ std::forward<std::initializer_list<T>>(default_values) }, _allowed_values{ std::move(allowed_values) }
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{
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}
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template <typename T>
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bool EnumListOption<T>::parse(std::string value)
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{
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// Remove default values
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_values.clear();
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_is_set = true;
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std::stringstream stream{ value };
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std::string item;
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while(!std::getline(stream, item, ',').fail())
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{
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try
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{
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std::stringstream item_stream(item);
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T typed_value{};
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item_stream >> typed_value;
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if(!item_stream.fail())
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{
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if(_allowed_values.count(typed_value) == 0)
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{
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_is_set = false;
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continue;
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}
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_values.emplace_back(typed_value);
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}
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_is_set = _is_set && !item_stream.fail();
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}
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catch(const std::invalid_argument &)
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{
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_is_set = false;
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}
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}
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return _is_set;
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}
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template <typename T>
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std::string EnumListOption<T>::help() const
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{
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std::stringstream msg;
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msg << "--" + name() + "={";
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for(const auto &value : _allowed_values)
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{
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msg << value << ",";
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}
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msg << "}[,{...}[,...]] - " << _help;
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return msg.str();
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}
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template <typename T>
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inline const std::vector<T> &EnumListOption<T>::value() const
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{
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return _values;
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}
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} // namespace utils
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} // namespace arm_compute
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#endif /* ARM_COMPUTE_UTILS_ENUMLISTOPTION */
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