Enum TopicFilter 

pub enum TopicFilter {
    All,
    Patterns(Vec<Pattern>),
}

A parsed topic filter: the value of ReadOptions::topic split on commas into individual Patterns.

Note that synthetic control frames emitted by a following read – xs.threshold and heartbeat xs.pulse – are delivered directly on the read channel and are never subject to this filter.

Variants

All

Match every topic (no filter, or some element was *).

Patterns(Vec<Pattern>)

Match topics satisfying at least one of these patterns.

Implementations

impl TopicFilter

pub fn parse(spec: &str) -> TopicFilter

Parse a comma-separated pattern list. Empty elements are ignored; an empty or all-* spec yields TopicFilter::All.

pub fn from_option(spec: Option<&str>) -> TopicFilter

Parse an optional spec; None means no filter.

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

Does topic match this filter?

Trait Implementations

impl Clone for TopicFilter

fn clone(&self) -> TopicFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TopicFilter

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

Formats the value using the given formatter.

impl PartialEq for TopicFilter

fn eq(&self, other: &TopicFilter) -> 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 StructuralPartialEq for TopicFilter