Struct EnumValue 

pub struct EnumValue {
    pub name: Ident,
    pub index: usize,
    pub discriminant: Option<i64>,
    pub origin: Origin<Variant>,
}

One named value of an Enum.

Fields

name: Ident

index: usize

Position within its enum, 0..N-1. Not the identity — see Self::discriminant — but the same “where it sits” fact every node in an ordered list carries, and what a consumer falls back to when a discriminant cannot be evaluated.

discriminant: Option<i64>

The value Rust assigns — an explicit = N sets it, an implicit value takes the previous plus one, starting at 0. This shape’s identity.

None once a spelling the frontend cannot evaluate (a const, a cfg, arithmetic) has broken the chain, or once the chain has run out of i64. That is not a failure: only a consumer that needs the number is affected, and one that re-emits the spelling reads Self::origin.syntax.discriminant instead.

origin: Origin<Variant>

The value as written: = 0x07, attributes, doc comments — and its delimiters, since B and B() are both fieldless and still spelled differently.

Implementations

impl EnumValue

pub fn docs(&self) -> Option<String>

This item’s /// documentation.

Trait Implementations

impl Clone for EnumValue

fn clone(&self) -> EnumValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnumValue

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

Formats the value using the given formatter.