Enum Topic

pub enum Topic<T> {
    Any,
    OneOf(Vec<T>),
    This(T),
}

Acceptable topic possibilities.

Variants

Any

Match any.

OneOf(Vec<T>)

Match any of the hashes.

This(T)

Match only this hash.

Implementations

impl<T> Topic<T>

pub fn map<F, O>(self, f: F) -> Topic<O>

where F: Fn(T) -> O,

Map

pub fn is_any(&self) -> bool

Returns true if topic is empty (Topic::Any)

Trait Implementations

impl<T: Debug> Debug for Topic<T>

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

Formats the value using the given formatter.

impl<T> Default for Topic<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> From<Option<T>> for Topic<T>

fn from(o: Option<T>) -> Self

Converts to this type from the input type.

impl<T> From<T> for Topic<T>

fn from(topic: T) -> Self

Converts to this type from the input type.

impl<T> From<Topic<T>> for Vec<T>

fn from(topic: Topic<T>) -> Self

Converts to this type from the input type.

impl<T> From<Vec<T>> for Topic<T>

fn from(topics: Vec<T>) -> Self

Converts to this type from the input type.

impl<T> Index<usize> for Topic<T>

type Output = T

The returned type after indexing.

fn index(&self, index: usize) -> &Self::Output

Performs the indexing (container[index]) operation.

impl<T: PartialEq> PartialEq for Topic<T>

fn eq(&self, other: &Topic<T>) -> 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<Hash>

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq> Eq for Topic<T>

impl<T> StructuralPartialEq for Topic<T>