Struct CallbackLabel

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

A string which disallows common invalid characters in callback labels, particularly at the start of the string

a valid callback label starts with a letter or underscore, and contains only ascii characters, as well as disallows some common keywords

Implementations

impl CallbackLabel

pub fn new_lossy(label: &str) -> CallbackLabel

pub fn new(label: &str) -> Option<CallbackLabel>

Trait Implementations

impl AsRef<str> for CallbackLabel

fn as_ref(&self) -> &str

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

impl Clone for CallbackLabel

fn clone(&self) -> CallbackLabel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CallbackLabel

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

Formats the value using the given formatter.

impl Display for CallbackLabel

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

Formats the value using the given formatter.

impl From<&str> for CallbackLabel

fn from(s: &str) -> CallbackLabel

Converts to this type from the input type.

impl From<String> for CallbackLabel

fn from(s: String) -> CallbackLabel

Converts to this type from the input type.

impl<T> From<T> for CallbackLabel

where T: IntoCallbackLabel,

fn from(_: T) -> CallbackLabel

Converts to this type from the input type.

impl Hash for CallbackLabel

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

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 CallbackLabel

fn eq(&self, other: &CallbackLabel) -> 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 CallbackLabel

impl StructuralPartialEq for CallbackLabel