Struct Attribute

#[non_exhaustive]
pub struct Attribute {
    pub hash: Pound,
    pub style: AttrStyle,
    pub open: OpenBracket,
    pub path: Path,
    pub input: TokenStream,
    pub close: CloseBracket,
}

Attributes like:

• #[derive(Debug)].
• #![doc = "test"].

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

hash: Pound

The # character

style: AttrStyle

Specify if the attribute is outer #! or inner #

open: OpenBracket

The [ character

path: Path

The path of the attribute

input: TokenStream

The input to the input of the attribute

close: CloseBracket

The ] character

Trait Implementations

impl Debug for Attribute

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

Formats the value using the given formatter.

impl OptionSpanned for Attribute

fn option_span(&self) -> Option<Span>

Get the optional span of the type.

impl Parse for Attribute

fn parse(p: &mut Parser<'_>) -> Result<Self, Error>

Parse the current item from the parser.

impl PartialEq for Attribute

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Peek for Attribute

fn peek(p: &mut Peeker<'_>) -> bool

Peek the parser for the given token.

impl Spanned for Attribute

fn span(&self) -> Span

Get the span of the type.

impl ToTokens for Attribute

fn to_tokens( &self, context: &mut MacroContext<'_, '_, '_>, stream: &mut TokenStream, ) -> Result<()>

Turn the current item into tokens.

impl TryClone for Attribute

fn try_clone(&self) -> Result<Self>

Try to clone the current value, raising an allocation error if it’s unsuccessful.

fn try_clone_from(&mut self, source: &Self) -> Result<(), Error>

Performs copy-assignment from source.

impl Eq for Attribute

impl StructuralPartialEq for Attribute