Enum syn::ReturnType[][src]

pub enum ReturnType {
    Default,
    Type(RArrowBox<Type>),
}
This is supported on crate features full or derive only.

Return type of a function signature.

This type is available only 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(RArrowBox<Type>)

A particular type is returned.

Implementations

impl ReturnType[src]

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

Trait Implementations

impl Clone for ReturnType[src]

This is supported on crate feature clone-impls only.

impl Debug for ReturnType[src]

This is supported on crate feature extra-traits only.

impl Eq for ReturnType[src]

This is supported on crate feature extra-traits only.

impl Hash for ReturnType[src]

This is supported on crate feature extra-traits only.

impl Parse for ReturnType[src]

This is supported on crate feature parsing only.

impl PartialEq<ReturnType> for ReturnType[src]

This is supported on crate feature extra-traits only.

impl ToTokens for ReturnType[src]

This is supported on crate feature printing only.

Auto Trait Implementations

Blanket Implementations

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

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

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

impl<T> From<T> for T[src]

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

impl<T> Spanned for T where
    T: Spanned + ?Sized
[src]

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

type Owned = T

The resulting type after obtaining ownership.

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

type Error = Infallible

The type returned in the event of a conversion error.

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

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

The type returned in the event of a conversion error.