Struct Identifier

pub struct Identifier(pub(crate) Intern<String>);

An identifier for any kind of object (functions, markers, etc.).

Implemented as an interned string, so identifiers are cheap to reuse.

Tuple Fields

0: Intern<String>

Implementations

impl Identifier

pub fn new(s: Symbol) -> Self

Intern a new identifier from a rustc rustc::span::Symbol

pub fn as_str(&self) -> &str

Returns the underlying string from an identifier.

pub fn new_intern(s: &str) -> Self

Interns the input string into an identifier.

Note: this requires locking the global intern arena. See internment::Intern for details.

Trait Implementations

impl Allocative for Identifier

fn visit<'a, 'b: 'a>(&self, visitor: &'a mut Visitor<'b>)

impl Clone for Identifier

fn clone(&self) -> Identifier

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Identifier

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

Formats the value using the given formatter.

impl<D: Decoder> Decodable<D> for Identifier

fn decode(d: &mut D) -> Self

impl<'de> Deserialize<'de> for Identifier

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Identifier

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

Formats the value using the given formatter.

impl<S: Encoder> Encodable<S> for Identifier

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

impl<'a> From<&'a str> for Identifier

fn from(value: &'a str) -> Self

Converts to this type from the input type.

impl Hash for Identifier

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 Ord for Identifier

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Identifier

fn eq(&self, other: &Identifier) -> 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 PartialOrd for Identifier

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for Identifier

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Identifier

impl Eq for Identifier

impl StructuralPartialEq for Identifier