Struct LambLabel 

pub struct LambLabel(/* private fields */);

A sheep’s own name for one of its lambs

Holds at most LambLabel::MAX_CHARS characters and no control character, whether built with LambLabel::new or read off the wire. Empty is a real value: it clears a label rather than setting one.

Implementations

impl LambLabel

pub const MAX_CHARS: usize = 64

The most characters a label may hold, counted as Unicode scalar values.

pub fn new(label: impl Into<String>) -> Result<LambLabel, LambLabelError>

A label, checked against the channel’s grammar.

Errors

• LambLabelError::TooLong when label has more than Self::MAX_CHARS characters.
• LambLabelError::ControlCharacter when label holds one, a newline included.

pub fn as_str(&self) -> &str

The label’s text.

pub fn is_empty(&self) -> bool

Whether this clears a label rather than setting one.

Trait Implementations

impl Clone for LambLabel

fn clone(&self) -> LambLabel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LambLabel

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LambLabel

fn deserialize<__D>( __deserializer: __D, ) -> Result<LambLabel, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for LambLabel

impl PartialEq for LambLabel

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for LambLabel

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for LambLabel

impl TryFrom<String> for LambLabel

type Error = LambLabelError

The type returned in the event of a conversion error.

fn try_from( label: String, ) -> Result<LambLabel, <LambLabel as TryFrom<String>>::Error>

Performs the conversion.