Enum rustc_ast::ast::AttrArgs

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pub enum AttrArgs {
    Empty,
    Delimited(DelimArgs),
    Eq(Span, AttrArgsEq),
}
Expand description

Arguments passed to an attribute macro.

Variants§

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Empty

No arguments: #[attr].

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Delimited(DelimArgs)

Delimited arguments: #[attr()/[]/{}].

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Eq(Span, AttrArgsEq)

Tuple Fields

§0: Span

Span of the = token.

§1: AttrArgsEq

The “value”.

Arguments of a key-value attribute: #[attr = "value"].

Implementations§

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impl AttrArgs

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pub fn span(&self) -> Option<Span>

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pub fn inner_tokens(&self) -> TokenStream

Tokens inside the delimiters or after =. Proc macros see these tokens, for example.

Trait Implementations§

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impl Clone for AttrArgs

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fn clone(&self) -> AttrArgs

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for AttrArgs

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

Formats the value using the given formatter. Read more
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impl<__D: Decoder> Decodable<__D> for AttrArgs

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

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impl<__E: Encoder> Encodable<__E> for AttrArgs

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

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impl<CTX> HashStable<CTX> for AttrArgswhere CTX: HashStableContext,

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fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher)

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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: 48 bytes

Size for each variant:

  • Empty: 0 bytes
  • Delimited: 32 bytes
  • Eq: 48 bytes