Enum syn::FnArg

pub enum FnArg {
    SelfRef(Option<Lifetime>, Mutability),
    SelfValue(Mutability),
    Captured(Pat, Ty),
    Ignored(Ty),
}

An argument in a function header.

E.g. bar: usize as in fn foo(bar: usize)

Variants

SelfRef(Option<Lifetime>, Mutability)SelfValue(Mutability)Captured(Pat, Ty)Ignored(Ty)

Trait Implementations

impl ToTokens for FnArg

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

Write self to the given Tokens.

impl Debug for FnArg

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for FnArg

fn clone(&self) -> FnArg

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for FnArg

impl PartialEq for FnArg

fn eq(&self, __arg_0: &FnArg) -> bool

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

fn ne(&self, __arg_0: &FnArg) -> bool

This method tests for !=.

impl Hash for FnArg

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

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].