+#[inline]
+fn check_api_err(api_err: APIError) {
+ match api_err {
+ APIError::APIMisuseError { .. } => panic!("We can't misuse the API"),
+ APIError::FeeRateTooHigh { .. } => panic!("We can't send too much fee?"),
+ APIError::RouteError { .. } => panic!("Our routes should work"),
+ APIError::ChannelUnavailable { err } => {
+ // Test the error against a list of errors we can hit, and reject
+ // all others. If you hit this panic, the list of acceptable errors
+ // is probably just stale and you should add new messages here.
+ match err.as_str() {
+ "Peer for first hop currently disconnected/pending monitor update!" => {},
+ _ if err.starts_with("Cannot push more than their max accepted HTLCs ") => {},
+ _ if err.starts_with("Cannot send value that would put us over the max HTLC value in flight our peer will accept ") => {},
+ _ if err.starts_with("Cannot send value that would put our balance under counterparty-announced channel reserve value") => {},
+ _ if err.starts_with("Cannot send value that would overdraw remaining funds.") => {},
+ _ if err.starts_with("Cannot send value that would not leave enough to pay for fees.") => {},
+ _ => panic!(err),
+ }
+ },
+ APIError::MonitorUpdateFailed => {
+ // We can (obviously) temp-fail a monitor update
+ },
+ }
+}
+#[inline]
+fn check_payment_err(send_err: PaymentSendFailure) {
+ match send_err {
+ PaymentSendFailure::ParameterError(api_err) => check_api_err(api_err),
+ PaymentSendFailure::PathParameterError(per_path_results) => {
+ for res in per_path_results { if let Err(api_err) = res { check_api_err(api_err); } }
+ },
+ PaymentSendFailure::AllFailedRetrySafe(per_path_results) => {
+ for api_err in per_path_results { check_api_err(api_err); }
+ },
+ PaymentSendFailure::PartialFailure(per_path_results) => {
+ for res in per_path_results { if let Err(api_err) = res { check_api_err(api_err); } }
+ },
+ }
+}
+