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#ifndef SIBS_RESULT_HPP
#define SIBS_RESULT_HPP
#include <cassert>
#include <string>
namespace sibs
{
template <typename T>
class Result
{
public:
static Result Ok(const T &value)
{
Result result(value);
result.errorCode = 0;
return result;
}
template <typename OtherType>
static Result Err(const Result<OtherType> &other)
{
Result result;
result.errMsg = other.getErrMsg();
result.errorCode = other.getErrorCode();
return result;
}
static Result Err(const std::string &errMsg, int errorCode = 1)
{
Result result;
result.errMsg = errMsg;
result.errorCode = errorCode;
return result;
}
bool isOk() const { return !errorCode; }
bool isErr() const { return errorCode; }
T& unwrap()
{
assert(isOk());
return value;
}
const std::string &getErrMsg() const
{
assert(isErr());
return errMsg;
}
int getErrorCode() const
{
return errorCode;
}
operator bool () { return isOk(); }
private:
Result(const T &_value = T()) : value(_value) {}
private:
T value;
std::string errMsg;
int errorCode;
};
}
#endif //SIBS_RESULT_HPP
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