Struct SubscriptionsBuf 

pub struct SubscriptionsBuf(Vec<u8>);

Available on crate feature alloc only.

Owned SUBSCRIBE payload bytes, the owned counterpart to Subscriptions.

Tuple Fields

0: Vec<u8>

Implementations

impl SubscriptionsBuf

pub const fn new() -> Self

Creates an empty buffer.

pub fn push(&mut self, filter: &TopicFilter, options: SubscriptionOptions)

Appends a subscription entry (topic filter + options) to the buffer.

pub const fn as_subscriptions(&self) -> &Subscriptions

Returns a reference to the underlying Subscriptions.

Methods from Deref<Target = Subscriptions>

pub const EMPTY: &'static Self

pub fn as_bytes(&self) -> &[u8]

Returns the raw encoded bytes.

pub fn is_empty(&self) -> bool

Returns true if the payload contains no subscription entries.

pub fn iter(&self) -> SubscriptionIter<'_>

Iterates over the subscription entries in this payload.

Trait Implementations

impl AsRef<Subscriptions> for SubscriptionsBuf

fn as_ref(&self) -> &Subscriptions

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<Subscriptions> for SubscriptionsBuf

fn borrow(&self) -> &Subscriptions

Immutably borrows from an owned value.

impl Clone for SubscriptionsBuf

fn clone(&self) -> SubscriptionsBuf

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubscriptionsBuf

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

Formats the value using the given formatter.

impl Default for SubscriptionsBuf

fn default() -> Self

Returns the “default value” for a type.

impl Deref for SubscriptionsBuf

type Target = Subscriptions

The resulting type after dereferencing.

fn deref(&self) -> &Subscriptions

Dereferences the value.

impl<'a> Extend<(&'a TopicFilter, SubscriptionOptions)> for SubscriptionsBuf

fn extend<I: IntoIterator<Item = (&'a TopicFilter, SubscriptionOptions)>>( &mut self, iter: I, )

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<'a> FromIterator<(&'a TopicFilter, SubscriptionOptions)> for SubscriptionsBuf

fn from_iter<I: IntoIterator<Item = (&'a TopicFilter, SubscriptionOptions)>>( iter: I, ) -> Self

Creates a value from an iterator.

impl Hash for SubscriptionsBuf

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 SubscriptionsBuf

fn eq(&self, other: &SubscriptionsBuf) -> 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 Eq for SubscriptionsBuf

impl StructuralPartialEq for SubscriptionsBuf