Struct rustc_data_structures::tagged_ptr::TaggedPtr
source · pub struct TaggedPtr<P, T, const COMPARE_PACKED: bool>{
raw: CopyTaggedPtr<P, T, COMPARE_PACKED>,
}
Expand description
A tagged pointer that supports pointers that implement Drop
.
This is essentially { pointer: P, tag: T }
packed in a single pointer.
You should use CopyTaggedPtr
instead of the this type in all cases
where P
implements Copy
.
If COMPARE_PACKED
is true, then the pointers will be compared and hashed without
unpacking. Otherwise we don’t implement PartialEq
, Eq
and Hash
;
if you want that, wrap the TaggedPtr
.
Fields§
§raw: CopyTaggedPtr<P, T, COMPARE_PACKED>
Implementations§
Trait Implementations§
source§impl<P, T, HCX, const CP: bool> HashStable<HCX> for TaggedPtr<P, T, CP>
impl<P, T, HCX, const CP: bool> HashStable<HCX> for TaggedPtr<P, T, CP>
fn hash_stable(&self, hcx: &mut HCX, hasher: &mut StableHasher)
impl<P, T> Eq for TaggedPtr<P, T, true>
Auto Trait Implementations§
impl<P, T, const COMPARE_PACKED: bool> Freeze for TaggedPtr<P, T, COMPARE_PACKED>
impl<P, T, const COMPARE_PACKED: bool> RefUnwindSafe for TaggedPtr<P, T, COMPARE_PACKED>
impl<P, T, const COMPARE_PACKED: bool> Send for TaggedPtr<P, T, COMPARE_PACKED>
impl<P, T, const COMPARE_PACKED: bool> Sync for TaggedPtr<P, T, COMPARE_PACKED>
impl<P, T, const COMPARE_PACKED: bool> Unpin for TaggedPtr<P, T, COMPARE_PACKED>where
T: Unpin,
impl<P, T, const COMPARE_PACKED: bool> UnwindSafe for TaggedPtr<P, T, COMPARE_PACKED>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.