std_map_utils.h

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#ifndef STD_MAP_UTILS_H
#define STD_MAP_UTILS_H
 
 
#include <any>
#include <map>
#include <stdexcept>
#include <unordered_map>
 
namespace bitrl
{
namespace utils
{
 
template <typename OutT>
OutT resolve(const std::string &name, const std::map<std::string, std::any> &input)
{
 
    auto itr = input.find(name);
 
    if (itr == input.end())
    {
        throw std::logic_error("Property: " + name + " not in input");
    }
 
    return std::any_cast<OutT>(itr->second);
}
 
template <typename OutT>
OutT resolve(const std::string &name, const std::unordered_map<std::string, std::any> &input)
{
    auto itr = input.find(name);
 
    if (itr == input.end())
    {
        throw std::logic_error("Property: " + name + " not in input");
    }
 
    try
    {
        return std::any_cast<OutT>(itr->second);
    }
    catch (const std::bad_any_cast &)
    {
        throw std::logic_error("Property: " + name + " has unexpected type");
    }
}
 
} // namespace utils
} // namespace bitrl
 
#endif