Enum rustc_ast::ast::GenericParamKind

pub enum GenericParamKind {
    Lifetime,
    Type {
        default: Option<P<Ty>>,
    },
    Const {
        ty: P<Ty>,
        kw_span: Span,
        default: Option<AnonConst>,
    },
}

Variants

Lifetime

A lifetime definition (e.g., 'a: 'b + 'c + 'd).

Type

Fields of Type

default: Option<P<Ty>>

Const

Fields of Const

ty: P<Ty>kw_span: Span

Span of the const keyword.

default: Option<AnonConst>

Optional default value for the const generic param

Trait Implementations

impl Clone for GenericParamKind

fn clone(&self) -> GenericParamKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GenericParamKind

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

Formats the value using the given formatter.

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

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

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

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

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: 40 bytes

Size for each variant:

• Lifetime: 0 bytes
• Type: 12 bytes
• Const: 36 bytes