Struct rustc_ast::ast::Variant

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,
}

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

impl Clone for Variant

fn clone(&self) -> Variant

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Variant

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

Formats the value using the given formatter.

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

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

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

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

impl HasAttrs for Variant

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.

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

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

impl HasNodeId for Variant

fn node_id(&self) -> NodeId

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

impl HasTokens for Variant

fn tokens(&self) -> Option<&LazyAttrTokenStream>

fn tokens_mut(&mut self) -> Option<&mut Option<LazyAttrTokenStream>>

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: 120 bytes