package qerr import ( "fmt" "github.com/lucas-clemente/quic-go/utils" ) // ErrorCode can be used as a normal error without reason. type ErrorCode uint32 func (e ErrorCode) Error() string { return e.String() } // A QuicError consists of an error code plus a error reason type QuicError struct { ErrorCode ErrorCode ErrorMessage string } // Error creates a new QuicError instance func Error(errorCode ErrorCode, errorMessage string) *QuicError { return &QuicError{ ErrorCode: errorCode, ErrorMessage: errorMessage, } } func (e *QuicError) Error() string { return fmt.Sprintf("%s: %s", e.ErrorCode.String(), e.ErrorMessage) } // ToQuicError converts an arbitrary error to a QuicError. It leaves QuicErrors // unchanged, and properly handles `ErrorCode`s. func ToQuicError(err error) *QuicError { switch e := err.(type) { case *QuicError: return e case ErrorCode: return Error(e, "") } utils.Errorf("Internal error: %v", err) return Error(InternalError, err.Error()) }