[][src]Struct rustc_ast::ast::MetaItem

pub struct MetaItem {
    pub path: Path,
    pub kind: MetaItemKind,
    pub span: Span,

A spanned compile-time attribute item.

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


path: Pathkind: MetaItemKindspan: Span


impl MetaItem[src]

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

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

pub fn name_or_empty(&self) -> Symbol[src]

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

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

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

pub fn is_word(&self) -> bool[src]

pub fn has_name(&self, name: Symbol) -> bool[src]

pub fn is_value_str(&self) -> bool[src]

pub fn is_meta_item_list(&self) -> bool[src]

impl MetaItem[src]

fn token_trees_and_joints(&self) -> Vec<TreeAndJoint>[src]

fn from_tokens<I>(tokens: &mut Peekable<I>) -> Option<MetaItem> where
    I: Iterator<Item = TokenTree>, 

Trait Implementations

impl Clone for MetaItem[src]

impl Debug for MetaItem[src]

impl Decodable for MetaItem[src]

impl Encodable for MetaItem[src]

impl<__CTX> HashStable<__CTX> for MetaItem where
    __CTX: HashStableContext

Auto Trait Implementations

impl !RefUnwindSafe for MetaItem

impl !Send for MetaItem

impl !Sync for MetaItem

impl Unpin for MetaItem

impl !UnwindSafe for MetaItem

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> Decodable for T where
    T: UseSpecializedDecodable

impl<T> Encodable for T where
    T: UseSpecializedEncodable + ?Sized

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.