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72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
#pragma once
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#include "platform/country_file.hpp"
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#include "base/assert.hpp"
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#include "base/checked_cast.hpp"
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#include "base/logging.hpp"
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#include <cstdint>
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#include <limits>
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#include <map>
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#include <vector>
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namespace routing
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{
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using NumMwmId = std::uint16_t;
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NumMwmId constexpr kFakeNumMwmId = std::numeric_limits<NumMwmId>::max();
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NumMwmId constexpr kGeneratorMwmId = 0;
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class NumMwmIds final
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{
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public:
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bool IsEmpty() const { return m_idToFile.empty(); }
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void RegisterFile(platform::CountryFile const & file)
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{
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if (ContainsFile(file))
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return;
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NumMwmId const id = base::asserted_cast<NumMwmId>(m_idToFile.size());
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m_idToFile.push_back(file);
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m_fileToId[file] = id;
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//LOG(LDEBUG, ("MWM:", file.GetName(), "=", id));
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}
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bool ContainsFile(platform::CountryFile const & file) const
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{
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return m_fileToId.find(file) != m_fileToId.cend();
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}
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bool ContainsFileForMwm(NumMwmId mwmId) const
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{
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return mwmId < m_idToFile.size();
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}
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platform::CountryFile const & GetFile(NumMwmId mwmId) const
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{
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ASSERT_LESS(mwmId, m_idToFile.size(), ());
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return m_idToFile[mwmId];
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}
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NumMwmId GetId(platform::CountryFile const & file) const
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{
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auto const it = m_fileToId.find(file);
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ASSERT(it != m_fileToId.cend(), ("Can't find mwm id for", file));
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return it->second;
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}
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template <typename F>
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void ForEachId(F && f) const
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{
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for (NumMwmId id = 0; id < base::asserted_cast<NumMwmId>(m_idToFile.size()); ++id)
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f(id);
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}
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private:
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std::vector<platform::CountryFile> m_idToFile;
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std::map<platform::CountryFile, NumMwmId> m_fileToId;
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};
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} // namespace routing
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