Enum syntax::ast::NestedMetaItemKind

pub enum NestedMetaItemKind {
    MetaItem(MetaItem),
    Literal(Lit),
}

🔬 This is a nightly-only experimental API. (rustc_private)

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Possible values inside of compile-time attribute lists.

E.g. the '..' in #[name(..)].

Variants

MetaItem(MetaItem)

🔬 This is a nightly-only experimental API. (rustc_private)

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A full MetaItem, for recursive meta items.

Literal(Lit)

🔬 This is a nightly-only experimental API. (rustc_private)

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A literal.

E.g. "foo", 64, true

Methods

impl NestedMetaItemKind

fn span(&self) -> Span

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fn tokens(&self) -> TokenStream

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fn from_tokens<I>(tokens: &mut Peekable<I>) -> Option<NestedMetaItemKind> where     I: Iterator<Item = TokenTree>,

🔬 This is a nightly-only experimental API. (rustc_private)

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Trait Implementations

impl Clone for NestedMetaItemKind

fn clone(&self) -> NestedMetaItemKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Encodable for NestedMetaItemKind

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

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impl Decodable for NestedMetaItemKind

fn decode<__D: Decoder>(d: &mut __D) -> Result<NestedMetaItemKind, __D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl Debug for NestedMetaItemKind

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

Formats the value using the given formatter.