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#pragma once
#include <hocon/config_value.hpp>
#include <internal/simple_config_origin.hpp>
#include <string>
namespace hocon {
/**
* This exists because sometimes null is not the same as missing. Specifically,
* if a value is set to null we can give a better error message (indicating
* where it was set to null) in case someone asks for the value. Also, null
* overrides values set "earlier" in the search path, while missing values do
* not.
*/
class config_null : public config_value {
public:
config_null(shared_origin origin);
config_value::type value_type() const override;
std::string transform_to_string() const override;
unwrapped_value unwrapped() const override;
bool operator==(config_value const& other) const override;
protected:
shared_value new_copy(shared_origin) const override;
void render(std::string& result, int indent, bool at_root, config_render_options options) const override;
};
} // namespace hocon
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