Enum syn::FnArg

pub enum FnArg {
    SelfRef(ArgSelfRef),
    SelfValue(ArgSelf),
    Captured(ArgCaptured),
    Inferred(Pat),
    Ignored(Type),
}

An argument in a function signature: the n: usize in fn f(n: usize).

This type is available if Syn is built with the "full" feature.

Syntax tree enum

This type is a syntax tree enum.

Variants

SelfRef(ArgSelfRef)

Self captured by reference in a function signature: &self or &mut self.

This type is available if Syn is built with the "full" feature.

SelfValue(ArgSelf)

Self captured by value in a function signature: self or mut self.

This type is available if Syn is built with the "full" feature.

Captured(ArgCaptured)

An explicitly typed pattern captured by a function signature.

This type is available if Syn is built with the "full" feature.

Inferred(Pat)

A pattern whose type is inferred captured by a function signature.

Ignored(Type)

A type not bound to any pattern in a function signature.

Trait Implementations

impl Synom for FnArg

fn parse(i: Cursor) -> PResult<Self>

fn description() -> Option<&'static str>

A short name of the type being parsed.

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 From<ArgSelfRef> for FnArg

fn from(e: ArgSelfRef) -> FnArg

Performs the conversion.

impl From<ArgSelf> for FnArg

fn from(e: ArgSelf) -> FnArg

Performs the conversion.

impl From<ArgCaptured> for FnArg

fn from(e: ArgCaptured) -> FnArg

Performs the conversion.

impl From<Pat> for FnArg

fn from(e: Pat) -> FnArg

Performs the conversion.

impl From<Type> for FnArg

fn from(e: Type) -> FnArg

Performs the conversion.

impl ToTokens for FnArg

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

Write self to the given Tokens.

fn into_tokens(self) -> Tokens

Convert self directly into a Tokens object.