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 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.

Methods

impl ReturnType

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pub fn without_plus(i: Cursor) -> PResult<Self>

Trait Implementations

impl Synom for ReturnType

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

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

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A short name of the type being parsed.

impl PartialEq<ReturnType> for ReturnType

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fn eq(&self, other: &ReturnType) -> bool

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

fn ne(&self, other: &ReturnType) -> bool

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This method tests for !=.

impl Clone for ReturnType

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fn clone(&self) -> ReturnType

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Eq for ReturnType

impl Debug for ReturnType

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

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Formats the value using the given formatter.

impl Hash for ReturnType

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

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Feeds this value into the given [Hasher].

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

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Feeds a slice of this type into the given [Hasher].

impl ToTokens for ReturnType

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

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Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

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Convert self directly into a TokenStream object.