Struct Symbol 

pub struct Symbol(NonZero<u32>);

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

Handle for a symbol string stored within the Interner.

Tuple Fields

0: NonZero<u32>

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

Implementations

impl Symbol

pub(crate) fn new(string: &str) -> Self

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

Intern a new Symbol

pub(crate) fn new_ident(string: &str, is_raw: bool) -> Self

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

Creates a new Symbol for an identifier.

Validates and normalizes before converting it to a symbol.

pub(crate) fn with<R>(self, f: impl FnOnce(&str) -> R) -> R

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

Run a callback with the symbol’s string value.

pub(crate) fn invalidate_all()

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

Clear out the thread-local symbol interner, making all previously created symbols invalid such that with will panic when called on them.

fn is_valid_ascii_ident(bytes: &[u8]) -> bool

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

Checks if the ident is a valid ASCII identifier.

This is a short-circuit which is cheap to implement within the proc-macro client to avoid RPC when creating simple idents, but may return false for a valid identifier if it contains non-ASCII characters.

fn can_be_raw(string: &str) -> bool

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

Trait Implementations

impl !Send for Symbol

impl !Sync for Symbol

impl Clone for Symbol

fn clone(&self) -> Symbol

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Symbol

impl Debug for Symbol

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

Formats the value using the given formatter.

impl<S> Decode<'_, '_, S> for Symbol

fn decode(r: &mut &[u8], s: &mut S) -> Self

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

impl Display for Symbol

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

Formats the value using the given formatter.

impl<S> Encode<S> for Symbol

fn encode(self, w: &mut Buffer, s: &mut S)

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

impl Eq for Symbol

#[doc(hidden)]

fn assert_fields_are_eq(&self)

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

#[doc(hidden)]

fn assert_receiver_is_total_eq(&self)

👎Deprecated since 1.95.0:

implementation detail of #[derive(Eq)]

impl Hash for Symbol

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 Symbol

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Symbol

impl TrivialClone for Symbol