Struct Topic 

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

A topic for event routing.

Topics can be either concrete (e.g., impl.done) or patterns (e.g., impl.*).

Implementations

impl Topic

pub fn new(topic: impl Into<String>) -> Self

Creates a new topic from a string.

pub fn as_str(&self) -> &str

Returns the topic as a string slice.

pub fn is_global_wildcard(&self) -> bool

Returns true if this is a global wildcard (*) that matches everything.

Used for fallback routing - global wildcards have lower priority than specific subscriptions.

pub fn matches(&self, topic: &Topic) -> bool

Checks if this topic pattern matches a given topic.

Pattern rules:

• * matches any single segment (e.g., impl.* matches impl.done)
• Exact match for non-pattern topics
• A single * matches everything

pub fn matches_str(&self, target: &str) -> bool

Checks if this topic pattern matches a given topic string.

Zero-allocation variant of matches() for hot paths. Avoids creating a temporary Topic wrapper.

Trait Implementations

impl Clone for Topic

fn clone(&self) -> Topic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Topic

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Topic

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Topic

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

Formats the value using the given formatter.

impl From<&str> for Topic

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for Topic

fn from(s: String) -> Self

Converts to this type from the input type.

impl Hash for Topic

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 Topic

fn eq(&self, other: &Topic) -> 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 Serialize for Topic

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Topic

impl StructuralPartialEq for Topic