Struct syntax::ast::Attribute

pub struct Attribute {
    pub id: AttrId,
    pub style: AttrStyle,
    pub path: Path,
    pub tokens: TokenStream,
    pub is_sugared_doc: bool,
    pub span: Span,
}

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Meta-data associated with an item Doc-comments are promoted to attributes that have is_sugared_doc = true

Fields

id: AttrId

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style: AttrStyle

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path: Path

🔬 This is a nightly-only experimental API. (rustc_private)

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tokens: TokenStream

🔬 This is a nightly-only experimental API. (rustc_private)

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is_sugared_doc: bool

🔬 This is a nightly-only experimental API. (rustc_private)

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span: Span

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Methods

impl Attribute

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

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pub fn name(&self) -> Name

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Returns the last segment of the name of this attribute. E.g. foo for #[foo], skip for #[rustfmt::skip].

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

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

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pub fn is_word(&self) -> bool

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pub fn span(&self) -> Span

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pub fn is_meta_item_list(&self) -> bool

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pub fn is_value_str(&self) -> bool

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Indicates if the attribute is a Value String.

pub fn is_scoped(&self) -> bool

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impl Attribute

pub fn meta(&self) -> Option<MetaItem>

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Extract the MetaItem from inside this Attribute.

pub fn parse<'a, T, F>(&self, sess: &'a ParseSess, f: F) -> PResult<'a, T> where     F: FnMut(&mut Parser<'a>) -> PResult<'a, T>,

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pub fn parse_list<'a, T, F>(     &self,     sess: &'a ParseSess,     f: F ) -> PResult<'a, Vec<T>> where     F: FnMut(&mut Parser<'a>) -> PResult<'a, T>,

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pub fn parse_meta<'a>(&self, sess: &'a ParseSess) -> PResult<'a, MetaItem>

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pub fn with_desugared_doc<T, F>(&self, f: F) -> T where     F: FnOnce(&Attribute) -> T,

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Convert self to a normal #[doc="foo"] comment, if it is a comment like /// or /** */. (Returns self unchanged for non-sugared doc attributes.)

Trait Implementations

impl Clone for Attribute

fn clone(&self) -> Attribute

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Encodable for Attribute

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

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impl Decodable for Attribute

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

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impl Debug for Attribute

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

Formats the value using the given formatter.

impl ToTokens for Attribute

Important traits for Vec<u8>

impl Write for Vec<u8>

fn to_tokens(&self, _cx: &ExtCtxt) -> Vec<TokenTree>

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