Enum syn::ReturnType

[−] Show declaration

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

[−] Expand description

Return type of a function signature.

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

Variants

Default

[−] Expand description

Return type is not specified.

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

Type(RArrow, Box<Type>)

[−] Expand description

A particular type is returned.

Implementations

impl ReturnType[−]

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

Trait Implementations

impl Clone for ReturnType[+]

[+] Show hidden undocumented items

fn clone(&self) -> Self[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for ReturnType[+]

[+] Show hidden undocumented items

fn fmt(&self, formatter: &mut Formatter<'_>) -> Result[−]

Formats the value using the given formatter.

impl Eq for ReturnType

impl Hash for ReturnType[+]

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fn hash<H>(&self, state: &mut H) where
    H: Hasher, [−]

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, [−]

Feeds a slice of this type into the given Hasher.

impl Parse for ReturnType[+]

[+] Show hidden undocumented items

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

impl PartialEq<ReturnType> for ReturnType[+]

[+] Show hidden undocumented items

fn eq(&self, other: &Self) -> bool[−]

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

[+] Expand attributes

#[must_use]pub fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl ToTokens for ReturnType[+]

[+] Show hidden undocumented items

fn to_tokens(&self, tokens: &mut TokenStream)[−]

Write self to the given TokenStream.

pub fn to_token_stream(&self) -> TokenStream[−]

Convert self directly into a TokenStream object.

pub fn into_token_stream(self) -> TokenStream[−]

Convert self directly into a TokenStream object.