Struct mqtt::control::variable_header::topic_name::TopicNameHeader
[−]
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pub struct TopicNameHeader(_);
Methods
impl TopicNameHeader
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fn new(topic_name: String) -> Result<TopicNameHeader, VariableHeaderError>
Methods from Deref<Target=String>
fn into_bytes(self) -> Vec<u8>
1.0.0
Converts a String
into a byte vector.
This consumes the String
, so we do not need to copy its contents.
Examples
Basic usage:
let s = String::from("hello"); let bytes = s.into_bytes(); assert_eq!(&[104, 101, 108, 108, 111][..], &bytes[..]);
fn as_str(&self) -> &str
1.7.0
Extracts a string slice containing the entire string.
fn capacity(&self) -> usize
1.0.0
Returns this String
's capacity, in bytes.
Examples
Basic usage:
let s = String::with_capacity(10); assert!(s.capacity() >= 10);
fn as_bytes(&self) -> &[u8]
1.0.0
Returns a byte slice of this String
's contents.
Examples
Basic usage:
let s = String::from("hello"); assert_eq!(&[104, 101, 108, 108, 111], s.as_bytes());
fn len(&self) -> usize
1.0.0
Returns the length of this String
, in bytes.
Examples
Basic usage:
let a = String::from("foo"); assert_eq!(a.len(), 3);
fn is_empty(&self) -> bool
1.0.0
Returns true
if this String
has a length of zero.
Returns false
otherwise.
Examples
Basic usage:
let mut v = String::new(); assert!(v.is_empty()); v.push('a'); assert!(!v.is_empty());
fn into_boxed_str(self) -> Box<str>
1.4.0
Converts this String
into a Box<str>
.
This will drop any excess capacity.
Examples
Basic usage:
let s = String::from("hello"); let b = s.into_boxed_str();
Trait Implementations
impl Debug for TopicNameHeader
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impl Eq for TopicNameHeader
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impl PartialEq for TopicNameHeader
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fn eq(&self, __arg_0: &TopicNameHeader) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &TopicNameHeader) -> bool
This method tests for !=
.
impl Clone for TopicNameHeader
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fn clone(&self) -> TopicNameHeader
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more
impl Into<TopicName> for TopicNameHeader
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impl Deref for TopicNameHeader
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type Target = String
The resulting type after dereferencing
fn deref(&self) -> &String
The method called to dereference a value
impl<'a> Encodable<'a> for TopicNameHeader
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type Err = VariableHeaderError
fn encode<W: Write>(&self, writer: &mut W) -> Result<(), VariableHeaderError>
fn encoded_length(&self) -> u32
impl<'a> Decodable<'a> for TopicNameHeader
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type Err = VariableHeaderError
type Cond = ()
fn decode_with<R: Read>(reader: &mut R,
_rest: Option<()>)
-> Result<TopicNameHeader, VariableHeaderError>
_rest: Option<()>)
-> Result<TopicNameHeader, VariableHeaderError>