Enum MetaItem

pub enum MetaItem {
    Path(Path),
    Tokens(TokenStream),
    KeyValue {
        path: Path,
        eq: Eq,
        tokens: TokenStream,
    },
    List {
        path: Path,
        delimiter: MacroDelimiter,
        items: Punctuated<MetaItem, Comma>,
    },
}

Variants

Path(Path)

Tokens(TokenStream)

KeyValue

Fields

path: Path

eq: Eq

tokens: TokenStream

List

Fields

path: Path

delimiter: MacroDelimiter

items: Punctuated<MetaItem, Comma>

Implementations

impl MetaItem

pub fn attr_path(&self) -> Option<&Path>

pub fn name(&self) -> Option<&Ident>

pub fn tokens(&self) -> Option<&TokenStream>

pub fn parse_value<T: Parse>(&self, expected: &str) -> Result<T>

pub fn parse_value_with<P: Parser>( &self, parser: P, expected: &str, ) -> Result<P::Output>

pub fn expected(&self, k: &str) -> Diagnostic

pub fn description(&self) -> &'static str

pub fn is_bare(&self) -> bool

pub fn expr(&self) -> Result<Expr>

pub fn path(&self) -> Result<Path>

pub fn lit(&self) -> Result<Lit>

pub fn list(&self) -> Result<impl Iterator<Item = &MetaItem> + Clone>

pub fn value_span(&self) -> Span

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 Debug for MetaItem

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

Formats the value using the given formatter.

impl Parse for MetaItem

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

impl ToTokens for MetaItem

fn to_tokens(&self, stream: &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) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl TryFrom<Meta> for MetaItem

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Meta) -> Result<Self, Self::Error>

Performs the conversion.