[−][src]Struct syntax::ast::Attribute
Metadata associated with an item.
Doc-comments are promoted to attributes that have is_sugared_doc = true
.
Fields
id: AttrId
style: AttrStyle
path: Path
tokens: TokenStream
is_sugared_doc: bool
span: Span
Methods
impl Attribute
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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.
impl Attribute
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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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F: FnMut(&mut Parser<'a>) -> PResult<'a, T>,
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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&self,
sess: &'a ParseSess,
f: F
) -> PResult<'a, Vec<T>> where
F: FnMut(&mut Parser<'a>) -> PResult<'a, T>,
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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F: FnOnce(&Attribute) -> T,
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
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fn clone(&self) -> Attribute
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for Attribute
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impl Encodable for Attribute
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impl Decodable for Attribute
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Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = !
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Encodable for T where
T: UseSpecializedEncodable + ?Sized,
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T: UseSpecializedEncodable + ?Sized,
impl<T> Decodable for T where
T: UseSpecializedDecodable,
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T: UseSpecializedDecodable,
impl<E> SpecializationError for E
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impl<T> Erased for T
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impl<T> Send for T where
T: ?Sized,
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T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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T: ?Sized,