[−][src]Enum syn::ReturnType

pub enum ReturnType {
    Default,
    Type(RArrow, Box<Type>),
}

Return type of a function signature.

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

Variants

Default

Return type is not specified.

Functions default to () and closures default to type inference.

Type(RArrow, Box<Type>)

A particular type is returned.

Methods

impl ReturnType[src]

pub fn without_plus(input: ParseStream) -> Result<Self>[src]

pub fn parse(input: ParseStream, allow_plus: bool) -> Result<Self>[src]

Trait Implementations

impl Parse for ReturnType[src]

impl Clone for ReturnType[src]

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl ToTokens for ReturnType[src]

fn into_token_stream(self) -> TokenStream[src]

Convert self directly into a TokenStream object. Read more

Auto Trait Implementations

impl !Send for ReturnType

impl !Sync for ReturnType

Blanket Implementations

impl<T> Spanned for T where
    T: ToTokens, [src]

impl<T, U> Into for T where
    U: From<T>, [src]

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

impl<T> From for T[src]

impl<T, U> TryFrom for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, [src]

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> BorrowMut for T where
    T: ?Sized, [src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.