Enum SingletonError 

pub enum SingletonError {
    MoreThanOne,
    NotPresent,
}

An error returned while retrieving a singleton service.

Variants

MoreThanOne

There were more than one instances of the requested service.

NotPresent

The requested singleton service was not present.

Trait Implementations

impl Clone for SingletonError

fn clone(&self) -> SingletonError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SingletonError

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

Formats the value using the given formatter.

impl PartialEq for SingletonError

fn eq(&self, other: &SingletonError) -> 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 Eq for SingletonError

impl StructuralPartialEq for SingletonError