# Enum rustc_expand::base::Annotatable

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    pub enum Annotatable {
    Show 14 variants    Item(P<Item>),
        TraitItem(P<AssocItem>),
        ImplItem(P<AssocItem>),
        ForeignItem(P<ForeignItem>),
        Stmt(P<Stmt>),
        Expr(P<Expr>),
        Arm(Arm),
        ExprField(ExprField),
        PatField(PatField),
        GenericParam(GenericParam),
        Param(Param),
        FieldDef(FieldDef),
        Variant(Variant),
        Crate(Crate),
    }

## Variants§

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### Item(P<Item>)

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### TraitItem(P<AssocItem>)

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### ImplItem(P<AssocItem>)

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### ForeignItem(P<ForeignItem>)

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### Stmt(P<Stmt>)

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### Expr(P<Expr>)

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### Arm(Arm)

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### ExprField(ExprField)

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### PatField(PatField)

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### GenericParam(GenericParam)

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### Param(Param)

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### FieldDef(FieldDef)

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### Variant(Variant)

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### Crate(Crate)

## Implementations§

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### impl Annotatable

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#### pub fn span(&self) -> Span

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#### pub fn visit_attrs(&mut self, f: impl FnOnce(&mut AttrVec))

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#### pub fn visit_with<'a, V: Visitor<'a>>(&'a self, visitor: &mut V) -> V::Result

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#### pub fn to_tokens(&self) -> TokenStream

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#### pub fn expect_item(self) -> P<Item>

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#### pub fn expect_trait_item(self) -> P<AssocItem>

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#### pub fn expect_impl_item(self) -> P<AssocItem>

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#### pub fn expect_foreign_item(self) -> P<ForeignItem>

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#### pub fn expect_stmt(self) -> Stmt

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#### pub fn expect_expr(self) -> P<Expr>

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#### pub fn expect_arm(self) -> Arm

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#### pub fn expect_expr_field(self) -> ExprField

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#### pub fn expect_pat_field(self) -> PatField

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#### pub fn expect_generic_param(self) -> GenericParam

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#### pub fn expect_param(self) -> Param

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#### pub fn expect_field_def(self) -> FieldDef

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#### pub fn expect_variant(self) -> Variant

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#### pub fn expect_crate(self) -> Crate

## Trait Implementations§

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### impl Clone for Annotatable

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#### fn clone(&self) -> Annotatable

Returns a copy of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl Debug for Annotatable

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

Formats the value using the given formatter. Read more

## Auto Trait Implementations§

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### impl DynSend for Annotatable

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### impl DynSync for Annotatable

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### impl Freeze for Annotatable

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### impl !RefUnwindSafe for Annotatable

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### impl !Send for Annotatable

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### impl !Sync for Annotatable

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### impl Unpin for Annotatable

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### impl !UnwindSafe for Annotatable

## Blanket Implementations§

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### impl<T> Aligned for T

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#### const ALIGN: Alignment = _

Alignment of `Self`.
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### impl<T> Any for T
where 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 T
where T: ?Sized,

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#### fn borrow(&self) -> &T

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

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

Mutably borrows from an owned value. Read more
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### impl<T, R> CollectAndApply<T, R> for T

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#### fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to `f(&iter.collect::<Vec<_>>())`.

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#### type Output = R

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### impl<T> Filterable for T

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#### fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T> Instrument for T

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#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided `Span`, returning an `Instrumented` wrapper. Read more
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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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### impl<T, U> Into<U> for T
where U: From<T>,

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#### 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> Pointable for T

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#### const ALIGN: usize = _

The alignment of pointer.
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#### type Init = T

The type for initializers.
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#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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### impl<T> Same for T

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#### type Output = T

Should always be `Self`
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### impl<T> ToOwned for T
where 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 T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### 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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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#### fn vzip(self) -> V

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### impl<T> WithSubscriber for T

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#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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### impl<'a, T> Captures<'a> for T
where T: ?Sized,

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### impl<T> ErasedDestructor for T
where T: 'static,

## 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: 112 bytes

Size for each variant:

- `Item`: 8 bytes
- `TraitItem`: 8 bytes
- `ImplItem`: 8 bytes
- `ForeignItem`: 8 bytes
- `Stmt`: 8 bytes
- `Expr`: 8 bytes
- `Arm`: 48 bytes
- `ExprField`: 48 bytes
- `PatField`: 48 bytes
- `GenericParam`: 96 bytes
- `Param`: 40 bytes
- `FieldDef`: 80 bytes
- `Variant`: 104 bytes
- `Crate`: 40 bytes