Enum syn::Meta [−][src]
Content of a compile-time structured attribute.
This type is available only if Syn is built with the "derive"
or "full"
feature.
Path
A meta path is like the test
in #[test]
.
List
A meta list is like the derive(Copy)
in #[derive(Copy)]
.
NameValue
A name-value meta is like the path = "..."
in #[path = "sys/windows.rs"]
.
Syntax tree enum
This type is a syntax tree enum.
Variants
Path(Path)
List(MetaList)
A structured list within an attribute, like derive(Copy, Clone)
.
NameValue(MetaNameValue)
A name-value pair within an attribute, like feature = "nightly"
.
Implementations
impl Meta
[src]
pub fn path(&self) -> &Path
[src]
Returns the identifier that begins this structured meta item.
For example this would return the test
in #[test]
, the derive
in
#[derive(Copy)]
, and the path
in #[path = "sys/windows.rs"]
.
Trait Implementations
impl Clone for Meta
[src]
fn clone(&self) -> Self
[src]
pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for Meta
[src]
impl Eq for Meta
[src]
impl From<Meta> for NestedMeta
[src]
fn from(e: Meta) -> NestedMeta
[src]
impl From<MetaList> for Meta
[src]
impl From<MetaNameValue> for Meta
[src]
fn from(e: MetaNameValue) -> Meta
[src]
impl From<Path> for Meta
[src]
impl Hash for Meta
[src]
fn hash<H>(&self, state: &mut H) where
H: Hasher,
[src]
H: Hasher,
pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl Parse for Meta
[src]
fn parse(input: ParseStream<'_>) -> Result<Self>
[src]
impl PartialEq<Meta> for Meta
[src]
impl ToTokens for Meta
[src]
fn to_tokens(&self, tokens: &mut TokenStream)
[src]
pub fn to_token_stream(&self) -> TokenStream
[src]
pub fn into_token_stream(self) -> TokenStream
[src]
Auto Trait Implementations
impl RefUnwindSafe for Meta
impl !Send for Meta
impl !Sync for Meta
impl Unpin for Meta
impl UnwindSafe for Meta
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T> Spanned for T where
T: Spanned + ?Sized,
[src]
T: Spanned + ?Sized,
impl<T> ToOwned for T where
T: Clone,
[src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn clone_into(&self, target: &mut T)
[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,