Struct rustc_span::symbol::Ident

source ·
pub struct Ident {
    pub name: Symbol,
    pub span: Span,
}

Fields§

§name: Symbol§span: Span

Implementations§

source§

impl Ident

source

pub const fn new(name: Symbol, span: Span) -> Ident

Constructs a new identifier from a symbol and a span.

source

pub const fn with_dummy_span(name: Symbol) -> Ident

Constructs a new identifier with a dummy span.

source

pub fn empty() -> Ident

source

pub fn from_str(string: &str) -> Ident

Maps a string to an identifier with a dummy span.

source

pub fn from_str_and_span(string: &str, span: Span) -> Ident

Maps a string and a span to an identifier.

source

pub fn with_span_pos(self, span: Span) -> Ident

Replaces lo and hi with those from span, but keep hygiene context.

source

pub fn without_first_quote(self) -> Ident

source

pub fn normalize_to_macros_2_0(self) -> Ident

“Normalize” ident for use in comparisons using “item hygiene”. Identifiers with same string value become same if they came from the same macro 2.0 macro (e.g., macro item, but not macro_rules item) and stay different if they came from different macro 2.0 macros. Technically, this operation strips all non-opaque marks from ident’s syntactic context.

source

pub fn normalize_to_macro_rules(self) -> Ident

“Normalize” ident for use in comparisons using “local variable hygiene”. Identifiers with same string value become same if they came from the same non-transparent macro (e.g., macro or macro_rules! items) and stay different if they came from different non-transparent macros. Technically, this operation strips all transparent marks from ident’s syntactic context.

source

pub fn as_str(&self) -> &str

Access the underlying string. This is a slowish operation because it requires locking the symbol interner.

Note that the lifetime of the return value is a lie. See Symbol::as_str() for details.

source§

impl Ident

source

pub fn is_special(self) -> bool

Returns true for reserved identifiers used internally for elided lifetimes, unnamed method parameters, crate root module, error recovery etc.

source

pub fn is_used_keyword(self) -> bool

Returns true if the token is a keyword used in the language.

source

pub fn is_unused_keyword(self) -> bool

Returns true if the token is a keyword reserved for possible future use.

source

pub fn is_reserved(self) -> bool

Returns true if the token is either a special identifier or a keyword.

source

pub fn is_path_segment_keyword(self) -> bool

A keyword or reserved identifier that can be used as a path segment.

source

pub fn is_raw_guess(self) -> bool

We see this identifier in a normal identifier position, like variable name or a type. How was it written originally? Did it use the raw form? Let’s try to guess.

Trait Implementations§

source§

impl Clone for Ident

source§

fn clone(&self) -> Ident

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for Ident

source§

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

Formats the value using the given formatter. Read more
source§

impl<__D: SpanDecoder> Decodable<__D> for Ident

source§

fn decode(__decoder: &mut __D) -> Self

source§

impl Display for Ident

This implementation is supposed to be used in error messages, so it’s expected to be identical to printing the original identifier token written in source code (token_to_string), except that AST identifiers don’t keep the rawness flag, so we have to guess it.

source§

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

Formats the value using the given formatter. Read more
source§

impl<__E: SpanEncoder> Encodable<__E> for Ident

source§

fn encode(&self, __encoder: &mut __E)

source§

impl Hash for Ident

source§

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
source§

impl<__CTX> HashStable<__CTX> for Ident
where __CTX: HashStableContext,

source§

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

source§

impl PartialEq for Ident

source§

fn eq(&self, rhs: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl Copy for Ident

source§

impl Eq for Ident

Auto Trait Implementations§

§

impl DynSend for Ident

§

impl DynSync for Ident

§

impl Freeze for Ident

§

impl RefUnwindSafe for Ident

§

impl Send for Ident

§

impl Sync for Ident

§

impl Unpin for Ident

§

impl UnwindSafe for Ident

Blanket Implementations§

source§

impl<T> Aligned for T

source§

const ALIGN: Alignment = _

Alignment of Self.
source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

§

impl<T> Pointable for T

§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> Same for T

§

type Output = T

Should always be Self
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T> ToString for T
where T: Display + ?Sized,

source§

default fn to_string(&self) -> String

Converts the given value to a String. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

impl<'a, T> Captures<'a> for T
where T: ?Sized,

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 12 bytes