Enum syn::FnArg

pub enum FnArg {
    Receiver(Receiver),
    Typed(PatType),
}

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

impl Clone for FnArg

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FnArg

fn fmt(&self, formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<PatType> for FnArg

fn from(e: PatType) -> FnArg

Converts to this type from the input type.

impl From<Receiver> for FnArg

fn from(e: Receiver) -> FnArg

Converts to this type from the input type.

impl Hash for FnArg

fn hash<H>(&self, state: &mut H)where
    H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,

Feeds a slice of this type into the given Hasher.

impl Parse for FnArg

fn parse(input: ParseStream<'_>) -> Result<Self>

impl PartialEq<FnArg> for FnArg

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToTokens for FnArg

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

impl Eq for FnArg