Struct async_coap::ETag

pub struct ETag { /* fields omitted */ }

Type for holding the value of an ETag option.

Methods

impl ETag

pub const MAX_LEN: usize

Describes the maximum length of an ETag (8 bytes).

pub const EMPTY: ETag

Constant representing an empty ETag.

pub fn new(x: &[u8]) -> ETag

Creates a new ETag instance from the given byte slice.

pub fn len(&self) -> usize

Returns the length of this ETag in bytes.

pub fn is_empty(&self) -> bool

Returns true if the length of this ETag is zero.

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

Returns the value of this ETag as a byte slice.

Trait Implementations

impl From<u32> for ETag

fn from(x: u32) -> Self

Performs the conversion.

impl From<i32> for ETag

fn from(x: i32) -> Self

Performs the conversion.

impl From<u16> for ETag

fn from(x: u16) -> Self

Performs the conversion.

impl<'_> From<&'_ [u8]> for ETag

fn from(x: &[u8]) -> Self

Performs the conversion.

impl Ord for ETag

fn cmp(&self, other: &ETag) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl PartialOrd<ETag> for ETag

fn partial_cmp(&self, other: &ETag) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &ETag) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &ETag) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &ETag) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &ETag) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialEq<ETag> for ETag

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialEq<[u8]> for ETag

fn eq(&self, other: &[u8]) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Default for ETag

fn default() -> Self

Returns the "default value" for a type.

impl Clone for ETag

fn clone(&self) -> ETag

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for ETag

impl Copy for ETag

impl Display for ETag

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

Formats the value using the given formatter.

impl Debug for ETag

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

Formats the value using the given formatter.

impl Deref for ETag

type Target = [u8]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for ETag

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, 

Feeds a slice of this type into the given [Hasher].