Struct rustc_ast::ast::Variant

source ·
pub struct Variant {
    pub attrs: AttrVec,
    pub id: NodeId,
    pub span: Span,
    pub vis: Visibility,
    pub ident: Ident,
    pub data: VariantData,
    pub disr_expr: Option<AnonConst>,
    pub is_placeholder: bool,
}
Expand description

Enum variant.

Fields§

§attrs: AttrVec

Attributes of the variant.

§id: NodeId

Id of the variant (not the constructor, see VariantData::ctor_id()).

§span: Span

Span

§vis: Visibility

The visibility of the variant. Syntactically accepted but not semantically.

§ident: Ident

Name of the variant.

§data: VariantData

Fields and constructor id of the variant.

§disr_expr: Option<AnonConst>

Explicit discriminant, e.g., Foo = 1.

§is_placeholder: bool

Is a macro placeholder

Trait Implementations§

source§

impl Clone for Variant

source§

fn clone(&self) -> Variant

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 Variant

source§

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

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

impl<__D: Decoder> Decodable<__D> for Variant

source§

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

source§

impl<__E: Encoder> Encodable<__E> for Variant

source§

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

source§

impl HasAttrs for Variant

source§

const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false

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 Variant

source§

fn node_id(&self) -> NodeId

source§

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

source§

impl HasTokens for Variant

Auto Trait Implementations§

§

impl !RefUnwindSafe for Variant

§

impl !Send for Variant

§

impl !Sync for Variant

§

impl Unpin for Variant

§

impl !UnwindSafe for Variant

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere 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> ToOwned for Twhere 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 Twhere 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 Twhere 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.

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: 104 bytes