Enum syn::ForeignItem

#[non_exhaustive]
pub enum ForeignItem {
    Fn(ForeignItemFn),
    Static(ForeignItemStatic),
    Type(ForeignItemType),
    Macro(ForeignItemMacro),
    Verbatim(TokenStream),
}

Available on crate feature full only.

An item within an extern block.

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

Syntax tree enum

This type is a syntax tree enum.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Fn(ForeignItemFn)

A foreign function in an extern block.

Static(ForeignItemStatic)

A foreign static item in an extern block: static ext: u8.

Type(ForeignItemType)

A foreign type in an extern block: type void.

Macro(ForeignItemMacro)

A macro invocation within an extern block.

Verbatim(TokenStream)

Tokens in an extern block not interpreted by Syn.

Trait Implementations

impl Clone for ForeignItem

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 ForeignItem

Available on crate feature extra-traits only.

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

Formats the value using the given formatter.

impl From<ForeignItemFn> for ForeignItem

fn from(e: ForeignItemFn) -> ForeignItem

Converts to this type from the input type.

impl From<ForeignItemMacro> for ForeignItem

fn from(e: ForeignItemMacro) -> ForeignItem

Converts to this type from the input type.

impl From<ForeignItemStatic> for ForeignItem

fn from(e: ForeignItemStatic) -> ForeignItem

Converts to this type from the input type.

impl From<ForeignItemType> for ForeignItem

fn from(e: ForeignItemType) -> ForeignItem

Converts to this type from the input type.

impl Hash for ForeignItem

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 ForeignItem

Available on crate feature parsing only.

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

impl PartialEq<ForeignItem> for ForeignItem

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 ForeignItem

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 ForeignItem

Available on crate feature extra-traits only.