99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2025, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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// The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software.
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//
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// Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// This notice may not be removed or altered from any source distribution.
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#pragma once
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#include <map>
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#include <string>
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namespace sta {
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// Helper for mapping enum values to strings and back.
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template <class ENUM>
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class EnumNameMap
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{
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public:
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EnumNameMap(std::initializer_list<std::pair<const ENUM, std::string>> enum_names);
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const char *find(ENUM key) const;
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ENUM find(std::string name,
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ENUM unknown_key) const;
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void find(std::string name,
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// Return values.
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ENUM &key,
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bool &exists) const;
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private:
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std::map<ENUM, std::string> enum_map_;
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std::map<std::string, ENUM> name_map_;
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};
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template <class ENUM>
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EnumNameMap<ENUM>::EnumNameMap(std::initializer_list<std::pair<const ENUM,std::string>> enum_names) :
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enum_map_(enum_names)
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{
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for (const auto& [key, name] : enum_map_)
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name_map_[name] = key;
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}
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template <class ENUM>
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const char *
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EnumNameMap<ENUM>::find(ENUM key) const
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{
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auto find_iter = enum_map_.find(key);
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if (find_iter != enum_map_.end())
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return find_iter->second.c_str();
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else
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return nullptr;
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}
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template <class ENUM>
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void
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EnumNameMap<ENUM>::find(std::string name,
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// Return values.
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ENUM &key,
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bool &exists) const
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{
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auto find_iter = name_map_.find(name);
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if (find_iter != name_map_.end()) {
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key = find_iter->second;
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exists = true;
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}
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else
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exists = false;
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}
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template <class ENUM>
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ENUM
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EnumNameMap<ENUM>::find(std::string name,
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ENUM unknown_key) const
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{
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auto find_iter = name_map_.find(name);
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if (find_iter != name_map_.end())
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return find_iter->second;
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else
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return unknown_key;
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}
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} // namespace
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