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#pragma once
#include <string>
namespace amalgine
{
template <typename T>
class Result
{
public:
static Result<T> Ok(const T &data)
{
Result<T> result;
result.data = data;
result.errorCode = 0;
return result;
}
static Result<T> Err(const std::string &errorMsg, int errorCode = -1)
{
Result<T> result;
result.errorMsg = errorMsg;
result.errorCode = errorCode;
return result;
}
template <typename OtherType>
static Result<T> Err(const Result<OtherType> &otherResult)
{
Result<T> result;
result.errorMsg = otherResult.errorMsg;
result.errorCode = otherResult.errorCode;
return result;
}
bool isOk() const { return errorCode == 0; }
bool isErr() const { return !isOk(); }
operator bool() const { return isOk(); }
const std::string& getErrorMsg() const { return errorMsg; }
private:
Result(){}
private:
T data;
int errorCode;
std::string errorMsg;
};
}
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