full
only.Expand description
An argument in a function signature: the n: usize
in fn f(n: usize)
.
This type is available only if Syn is built with the "full"
feature.
Variants
Receiver(Receiver)
The self
argument of an associated method, whether taken by value
or by reference.
Note that self
receivers with a specified type, such as self: Box<Self>
, are parsed as a FnArg::Typed
.
Typed(PatType)
A function argument accepted by pattern and type.
Trait Implementations
sourceimpl Parse for FnArg
This is supported on crate feature parsing
only.
impl Parse for FnArg
parsing
only.fn parse(input: ParseStream<'_>) -> Result<Self>
sourceimpl ToTokens for FnArg
This is supported on crate feature printing
only.
impl ToTokens for FnArg
printing
only.sourcefn to_tokens(&self, tokens: &mut TokenStream)
fn to_tokens(&self, tokens: &mut TokenStream)
Write self
to the given TokenStream
. Read more
sourcefn to_token_stream(&self) -> TokenStream
fn to_token_stream(&self) -> TokenStream
Convert self
directly into a TokenStream
object. Read more
sourcefn into_token_stream(self) -> TokenStream
fn into_token_stream(self) -> TokenStream
Convert self
directly into a TokenStream
object. Read more
impl Eq for FnArg
extra-traits
only.Auto Trait Implementations
impl RefUnwindSafe for FnArg
impl !Send for FnArg
impl !Sync for FnArg
impl Unpin for FnArg
impl UnwindSafe for FnArg
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Spanned for T where
T: Spanned + ?Sized,
impl<T> Spanned for T where
T: Spanned + ?Sized,
sourcefn span(&self) -> Span
fn span(&self) -> Span
parsing
and printing
only.Returns a Span
covering the complete contents of this syntax tree
node, or Span::call_site()
if this node is empty. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more