draconisplusplus/include/rfl/Size.hpp
2024-05-31 22:59:00 -04:00

33 lines
717 B
C++

#ifndef RFL_SIZE_HPP_
#define RFL_SIZE_HPP_
#include <map>
#include "Ref.hpp"
#include "Result.hpp"
#include "parsing/Parser.hpp"
#include "parsing/schema/ValidationType.hpp"
namespace rfl {
template <class V>
struct Size {
template <class T>
static rfl::Result<T> validate(const T& _t) {
const auto to_t = [&](const auto& _v) { return _t; };
const auto embellish_error = [](const auto& _err) {
return Error("Size validation failed: " + _err.what());
};
return V::validate(_t.size()).transform(to_t).or_else(embellish_error);
}
template <class T>
static parsing::schema::ValidationType to_schema() {
return V::template to_schema<size_t>();
}
};
} // namespace rfl
#endif