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 From<PatType> for FnArg

fn from(e: PatType) -> FnArg

Performs the conversion.

impl From<Receiver> for FnArg

fn from(e: Receiver) -> FnArg

Performs the conversion.

impl Parse for FnArg

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

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.