Enum syn::MetaItem

[+] Show declaration

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

[−] Expand description

A compile-time attribute item.

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

Variants

Word(Ident)

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Word meta item.

E.g. test as in #[test]

List(Ident, Vec<NestedMetaItem>)

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List meta item.

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

NameValue(Ident, Lit)

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Name-value meta item.

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

Methods

impl MetaItem

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pub fn name(&self) -> &str

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Name of the item.

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

Trait Implementations

impl ToTokens for MetaItem

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

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Write self to the given Tokens.

impl Debug for MetaItem

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

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Formats the value using the given formatter.

impl Clone for MetaItem

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fn clone(&self) -> MetaItem

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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 MetaItem

impl PartialEq for MetaItem

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

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

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

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This method tests for !=.

impl Hash for MetaItem

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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].