Enum syn::MetaItem

pub enum MetaItem {
    Word(Ident),
    List(Ident, Vec<NestedMetaItem>),
    NameValue(Ident, Lit),
}

A compile-time attribute item.

E.g. #[test], #[derive(..)] or #[feature = "foo"]

Variants

Word(Ident)

Word meta item.

E.g. test as in #[test]

List(Ident, Vec<NestedMetaItem>)

List meta item.

E.g. derive(..) as in #[derive(..)]

NameValue(Ident, Lit)

Name-value meta item.

E.g. feature = "foo" as in #[feature = "foo"]

Methods

impl MetaItem

pub fn name(&self) -> &str

Name of the item.

E.g. test as in #[test], derive as in #[derive(..)], and feature as in #[feature = "foo"].

Trait Implementations

impl Clone for MetaItem

fn clone(&self) -> MetaItem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for MetaItem

impl PartialEq<MetaItem> for MetaItem

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

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

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

This method tests for !=.

impl Debug for MetaItem

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

Formats the value using the given formatter.

impl Hash for MetaItem

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

Feeds this value into the given [Hasher].

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

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

impl StructuralPartialEq for MetaItem

impl StructuralEq for MetaItem

impl ToTokens for MetaItem

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

Write self to the given Tokens.