Struct Subject 

pub struct Subject { /* private fields */ }

A concrete, hierarchical, dot-separated routing key.

Example: vehicle.sensors.imu.gyro. Subjects are case-sensitive, have no leading/trailing/consecutive separators, and never contain wildcards (+/# — see SubjectPattern).

Implementations

impl Subject

pub fn from_segments( segments: Vec<SubjectSegment>, ) -> Result<Self, SubjectError>

Construct a Subject from segments.

Errors

Returns SubjectError::EmptySubject if segments is empty.

pub fn from_str(s: &str) -> Result<Self, SubjectError>

Parse a Subject from a dot-joined string.

Errors

Returns a SubjectError variant for any grammar violation (empty segment, invalid charset, leading/trailing/consecutive separator, wildcard in concrete subject, empty subject).

pub fn segments(&self) -> &[SubjectSegment]

The segments of this subject.

pub fn as_str(&self) -> String

Dot-joined string form.

pub fn is_concrete(&self) -> bool

Always true for Subject (only patterns can be non-concrete).

Trait Implementations

impl Clone for Subject

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 Subject

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Subject

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Subject

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

Formats the value using the given formatter.

impl Eq for Subject

impl Hash for Subject

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 Subject

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Subject

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Subject