Struct ServiceKey 

pub struct ServiceKey(/* private fields */);

An arbitrary value key, compared by type and value. None represents an unkeyed service.

Implementations

impl ServiceKey

pub const ANY: Self

Catch-all registration / query for all explicitly keyed registrations.

pub fn new<T: Eq + Hash + Debug + 'static>(value: T) -> Self

pub fn is_any(&self) -> bool

pub fn downcast_ref<T: 'static>(&self) -> Option<&T>

Trait Implementations

impl Clone for ServiceKey

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ServiceKey

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

Formats the value using the given formatter.

impl Eq for ServiceKey

impl From<&str> for ServiceKey

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for ServiceKey

fn from(s: String) -> Self

Converts to this type from the input type.

impl Hash for ServiceKey

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ServiceKey

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

Equality operator ==.

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

Inequality operator !=.