Struct syn::ExprReturn

pub struct ExprReturn {
    pub attrs: Vec<Attribute>,
    pub return_token: Return,
    pub expr: Option<Box<Expr>>,
}

Available on crate feature full only.

A return, with an optional value to be returned.

Fields

attrs: Vec<Attribute>

return_token: Return

expr: Option<Box<Expr>>

Trait Implementations

impl Clone for ExprReturn

Available on crate feature clone-impls only.

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExprReturn

Available on crate feature extra-traits only.

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

Formats the value using the given formatter.

impl From<ExprReturn> for Expr

fn from(e: ExprReturn) -> Expr

Converts to this type from the input type.

impl Hash for ExprReturn

Available on crate feature extra-traits only.

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl Parse for ExprReturn

Available on crate feature parsing only.

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

impl PartialEq<ExprReturn> for ExprReturn

Available on crate feature extra-traits only.

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToTokens for ExprReturn

Available on crate feature printing only.

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

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStreamwhere Self: Sized,

Convert self directly into a TokenStream object.

impl Eq for ExprReturn

Available on crate feature extra-traits only.