Struct Topic 

pub struct Topic<T: 'static> { /* private fields */ }

Type-safe event topic.

T is the payload type associated with the topic. Two topics are equal only when both the topic name and payload type match.

Implementations

impl<T: 'static> Topic<T>

pub fn try_new(name: impl Into<String>) -> EventBusResult<Self>

Creates a topic after validating its name.

Parameters

• name: Non-blank topic name.

Returns

A type-safe topic bound to T.

Errors

Returns EventBusError::InvalidArgument when name is blank.

pub fn name(&self) -> &str

Returns the topic name.

Returns

The immutable topic name.

pub fn payload_type_id(&self) -> TypeId

Returns the payload TypeId.

Returns

Type identifier for payload T.

pub fn payload_type_name(&self) -> &'static str

Returns the Rust payload type name.

Returns

Fully qualified payload type name.

pub fn key(&self) -> TopicKey

Returns a type-erased key for internal maps.

Returns

A key containing the topic name and payload type.

Trait Implementations

impl<T: 'static> Clone for Topic<T>

fn clone(&self) -> Self

Clones the topic metadata without requiring T: Clone.

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

Performs copy-assignment from source.

impl<T: Debug + 'static> Debug for Topic<T>

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

Formats the value using the given formatter.

impl<T: 'static> Display for Topic<T>

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

Formats the topic as <payload_type>.<topic_name>.

impl<T: 'static> Hash for Topic<T>

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

Hashes topic name and payload type.

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<T: 'static> PartialEq for Topic<T>

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

Compares topic name and payload type.

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<T: 'static> Eq for Topic<T>