Struct rustc_ast::ast::Item

source ·
pub struct Item<K = ItemKind> {
    pub attrs: AttrVec,
    pub id: NodeId,
    pub span: Span,
    pub vis: Visibility,
    pub ident: Ident,
    pub kind: K,
    pub tokens: Option<LazyAttrTokenStream>,
}
Expand description

An item definition.

Fields§

§attrs: AttrVec§id: NodeId§span: Span§vis: Visibility§ident: Ident

The name of the item. It might be a dummy name in case of anonymous items.

§kind: K§tokens: Option<LazyAttrTokenStream>

Original tokens this item was parsed from. This isn’t necessarily available for all items, although over time more and more items should have this be Some. Right now this is primarily used for procedural macros, notably custom attributes.

Note that the tokens here do not include the outer attributes, but will include inner attributes.

Implementations§

source§

impl Item

source

pub fn span_with_attributes(&self) -> Span

Return the span that encompasses the attributes.

source

pub fn opt_generics(&self) -> Option<&Generics>

Trait Implementations§

source§

impl !AstDeref for Item

§

type Target

source§

fn ast_deref(&self) -> &Self::Target

source§

fn ast_deref_mut(&mut self) -> &mut Self::Target

source§

impl<K: Clone> Clone for Item<K>

source§

fn clone(&self) -> Item<K>

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<K: Debug> Debug for Item<K>

source§

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

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

impl<K, __D: SpanDecoder> Decodable<__D> for Item<K>
where K: Decodable<__D>,

source§

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

source§

impl DummyAstNode for Item

source§

fn dummy() -> Self

source§

impl<K, __E: SpanEncoder> Encodable<__E> for Item<K>
where K: Encodable<__E>,

source§

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

source§

impl HasAttrs for Item

source§

const SUPPORTS_CUSTOM_INNER_ATTRS: bool = true

This is true if this HasAttrs might support ‘custom’ (proc-macro) inner attributes. Attributes like #![cfg] and #![cfg_attr] are not considered ‘custom’ attributes. Read more
source§

fn attrs(&self) -> &[Attribute]

source§

fn visit_attrs(&mut self, f: impl FnOnce(&mut AttrVec))

source§

impl HasNodeId for Item

source§

fn node_id(&self) -> NodeId

source§

fn node_id_mut(&mut self) -> &mut NodeId

source§

impl HasTokens for Item

Auto Trait Implementations§

§

impl<K> Freeze for Item<K>
where K: Freeze,

§

impl<K = ItemKind> !RefUnwindSafe for Item<K>

§

impl<K = ItemKind> !Send for Item<K>

§

impl<K = ItemKind> !Sync for Item<K>

§

impl<K> Unpin for Item<K>
where K: Unpin,

§

impl<K = ItemKind> !UnwindSafe for Item<K>

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<T> CloneToUninit for T
where T: Clone,

source§

default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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.

source§

impl<T> IntoEither for T

source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. 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, 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: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.