Enum StreamError

pub enum StreamError<SourceErr, SinkErr>
where
    SourceErr: Error,
    SinkErr: Error,
{
    SourceError(SourceErr),
    SinkError(SinkErr),
}

A error that is raised by functions that move fallible Sources into fallible Sinks.

In case this error is raised it can be matched to investigate if Source or Sink failed.

Conversion

Both variants SourceError and SinkError are public exported. Consequently, StreamError can be constructed with .map_err(SourceError) and .map_err(SinkError).

Variants

SourceError(SourceErr)

Error caused by the source

SinkError(SinkErr)

Error caused by the sink

Implementations

impl<SourceErr, SinkErr> StreamError<SourceErr, SinkErr>

where SourceErr: Error, SinkErr: Error,

pub fn is_source_error(&self) -> bool

Checks if StreamError was raised by the Source.

pub fn is_sink_error(&self) -> bool

Checks if StreamError was raised by the Sink.

pub fn inner_into<Err>(self) -> Err

where SourceErr: Error + Into<Err>, SinkErr: Error + Into<Err>,

Converts StreamError into an inner error.

pub fn map_source<E, F>(self, f: F) -> StreamError<E, SinkErr>

where E: Error, F: FnOnce(SourceErr) -> E,

Convert using f if a SourceError

pub fn map_sink<E, F>(self, f: F) -> StreamError<SourceErr, E>

where E: Error, F: FnOnce(SinkErr) -> E,

Convert using f if a SinkError

pub fn unwrap_source_error(self) -> SourceErr

Unwrap as the inner SourceError.

Panic

Panic if self is actually a SinkError.

pub fn unwrap_sink_error(self) -> SinkErr

Unwrap as the inner SinkError.

Panic

Panic if self is actually a SourceError.

pub fn reverse(self) -> StreamError<SinkErr, SourceErr>

Switch source and sink error.

Trait Implementations

impl<SourceErr, SinkErr> Debug for StreamError<SourceErr, SinkErr>

where SourceErr: Error + Debug, SinkErr: Error + Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<SourceErr, SinkErr> Display for StreamError<SourceErr, SinkErr>

where SourceErr: Error + Display, SinkErr: Error + Display,

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<SourceErr, SinkErr> Error for StreamError<SourceErr, SinkErr>

where SourceErr: Error + Error + 'static, SinkErr: Error + Error + 'static, Self: Debug + Display,

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.