Enum rustc_ast::token::NonterminalKind

pub enum NonterminalKind {
    Item,
    Block,
    Stmt,
    PatParam {
        inferred: bool,
    },
    PatWithOr,
    Expr,
    Expr2021,
    Ty,
    Ident,
    Lifetime,
    Literal,
    Meta,
    Path,
    Vis,
    TT,
}

Variants

Item

Block

Stmt

PatParam

Fields

inferred: bool

Keep track of whether the user used :pat_param or :pat and we inferred it from the edition of the span. This is used for diagnostics.

PatWithOr

Expr

Expr2021

Matches an expression using the rules from edition 2021 and earlier.

Ty

Ident

Lifetime

Literal

Meta

Path

Vis

TT

Implementations

impl NonterminalKind

pub fn from_symbol( symbol: Symbol, edition: impl FnOnce() -> Edition ) -> Option<NonterminalKind>

The edition closure is used to get the edition for the given symbol. Doing span.edition() is expensive, so we do it lazily.

fn symbol(self) -> Symbol

Trait Implementations

impl Clone for NonterminalKind

fn clone(&self) -> NonterminalKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NonterminalKind

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for NonterminalKind

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

impl Display for NonterminalKind

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

Formats the value using the given formatter.

impl<__E: SpanEncoder> Encodable<__E> for NonterminalKind

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

impl PartialEq for NonterminalKind

fn eq(&self, other: &NonterminalKind) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for NonterminalKind

impl StructuralPartialEq for NonterminalKind

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: 1 byte

Size for each variant:

• Item: 0 bytes
• Block: 0 bytes
• Stmt: 0 bytes
• PatParam: 1 byte
• PatWithOr: 0 bytes
• Expr: 0 bytes
• Expr2021: 0 bytes
• Ty: 0 bytes
• Ident: 0 bytes
• Lifetime: 0 bytes
• Literal: 0 bytes
• Meta: 0 bytes
• Path: 0 bytes
• Vis: 0 bytes
• TT: 0 bytes