Struct syntax::ast::MetaItem

pub struct MetaItem {
    pub path: Path,
    pub node: MetaItemKind,
    pub span: Span,
}

A spanned compile-time attribute item.

E.g., #[test], #[derive(..)], #[rustfmt::skip] or #[feature = "foo"].

Fields

path: Path

node: MetaItemKind

span: Span

Methods

impl MetaItem

pub fn ident(&self) -> Option<Ident>

For a single-segment meta-item returns its name, otherwise returns None.

pub fn name_or_empty(&self) -> Symbol

pub fn name_value_literal(&self) -> Option<&Lit>

pub fn value_str(&self) -> Option<Symbol>

pub fn meta_item_list(&self) -> Option<&[NestedMetaItem]>

pub fn is_word(&self) -> bool

pub fn check_name(&self, name: Symbol) -> bool

pub fn is_value_str(&self) -> bool

pub fn is_meta_item_list(&self) -> bool

Trait Implementations

impl Clone for MetaItem

fn clone(&self) -> MetaItem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MetaItem

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

Formats the value using the given formatter.

impl Encodable for MetaItem

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

impl Decodable for MetaItem

fn decode<__D: Decoder>(d: &mut __D) -> Result<MetaItem, __D::Error>