UnitManager.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstUtil/Unit.hpp"
#include <unordered_map>
#include <map>
#include <string>
#include <vector>
 
 
AST_NAMESPACE_BEGIN
 
class Unit;
 
AST_UTIL_API Unit* aUnitGet(StringView name);
 
AST_UTIL_API Unit* aUnitGetSI(Dimension dim);
 
AST_UTIL_API Unit* aUnitGetDefault(Dimension dim);
 
 
AST_UTIL_API errc_t aUnitAdd(const Unit& unit);
 
 
AST_UTIL_API errc_t aUnitAdd(StringView name, const Unit& unit);
 
AST_UTIL_API std::vector<Unit> aUnitsGetByDimension(Dimension dim);
 
 
class AST_UTIL_API UnitManager
{
public:
    static UnitManager& Instance();
 
    UnitManager();
 
    ~UnitManager();
 
    errc_t addUnit(const Unit& unit);
 
    errc_t addUnit(StringView name, const Unit& unit);
 
    Unit* getUnit(StringView name);
 
    Unit* getSiUnit(Dimension dim);
 
    std::vector<Unit> getUnitsByDimension(Dimension dim) const;
 
protected:
 
    errc_t _addUnit(const std::string& name, const Unit& unit);
 
    Unit* _getSiUnitCache(Dimension dim);
protected:
    std::unordered_map<std::string, Unit*> units_{};      
    std::map<Dimension, Unit*> siUnits_{};                
};
 
AST_NAMESPACE_END