Struct AttrItem

pub struct AttrItem {
    pub unsafety: Safety,
    pub path: Path,
    pub args: AttrArgs,
    pub tokens: Option<LazyAttrTokenStream>,
}

Fields

unsafety: Safety

path: Path

args: AttrArgs

tokens: Option<LazyAttrTokenStream>

Implementations

impl AttrItem

pub fn is_valid_for_outer_style(&self) -> bool

impl AttrItem

pub fn span(&self) -> Span

pub fn meta_item_list(&self) -> Option<ThinVec<MetaItemInner>>

fn value_str(&self) -> Option<Symbol>

Returns the string value in:

#[attribute = "value"]
              ^^^^^^^

It returns None in any other cases like:

#[attr("value")]

pub fn meta(&self, span: Span) -> Option<MetaItem>

pub fn meta_kind(&self) -> Option<MetaItemKind>

Trait Implementations

impl Clone for AttrItem

fn clone(&self) -> AttrItem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttrItem

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for AttrItem

fn decode(__decoder: &mut __D) -> Self

impl<__E: SpanEncoder> Encodable<__E> for AttrItem

fn encode(&self, __encoder: &mut __E)

impl HasAttrs for AttrItem

const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false

This is true if this HasAttrs might support ‘custom’ (proc-macro) inner attributes. Attributes like #![cfg] and #![cfg_attr] are not considered ‘custom’ attributes.

fn attrs(&self) -> &[Attribute]

fn visit_attrs(&mut self, _f: impl FnOnce(&mut AttrVec))

impl HasTokens for AttrItem

fn tokens(&self) -> Option<&LazyAttrTokenStream>

fn tokens_mut(&mut self) -> Option<&mut Option<LazyAttrTokenStream>>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 80 bytes