Enum ProjectionError 

pub enum ProjectionError<E> {
    EmptyInput,
    Reducer(E),
}

Errors returned by projection helpers.

Variants

EmptyInput

The reducer was asked to fold an empty stream.

Reducer(E)

The reducer rejected one of the events in the stream.

Trait Implementations

impl<E: Debug> Debug for ProjectionError<E>

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

Formats the value using the given formatter.

impl<E> Display for ProjectionError<E>

where E: Display,

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

Formats the value using the given formatter.

impl<E> Error for ProjectionError<E>

where E: Error + 'static,

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.

impl<E: PartialEq> PartialEq for ProjectionError<E>

fn eq(&self, other: &ProjectionError<E>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E: Eq> Eq for ProjectionError<E>

impl<E> StructuralPartialEq for ProjectionError<E>