Enum ServiceCardinality 

pub enum ServiceCardinality {
    Single,
    Multiple,
}

Declares whether a service key may have one or several providers.

Variants

Single

Exactly zero or one provider may be registered for this key.

Multiple

Any number of providers may be registered for this key.

Trait Implementations

impl Clone for ServiceCardinality

fn clone(&self) -> ServiceCardinality

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ServiceCardinality

impl Debug for ServiceCardinality

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

Formats the value using the given formatter.

impl Eq for ServiceCardinality

impl PartialEq for ServiceCardinality

fn eq(&self, other: &ServiceCardinality) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ServiceCardinality