Trait monto::broker::NewBrokerResultExt
[−]
pub trait NewBrokerResultExt<T> { fn chain_err<F, EK>(self, callback: F) -> Result<T, NewBrokerError>
where
F: FnOnce() -> EK,
EK: Into<NewBrokerErrorKind>; }
Additional methods for Result
, for easy interaction with this crate.
Required Methods
fn chain_err<F, EK>(self, callback: F) -> Result<T, NewBrokerError> where
F: FnOnce() -> EK,
EK: Into<NewBrokerErrorKind>,
F: FnOnce() -> EK,
EK: Into<NewBrokerErrorKind>,
If the Result
is an Err
then chain_err
evaluates the closure,
which returns some type that can be converted to ErrorKind
, boxes
the original error to store as the cause, then returns a new error
containing the original error.