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TaggedPointer

Struct TaggedPointer 

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#[repr(transparent)]
pub struct TaggedPointer<T: ?Sized> { pub raw: *mut T, }
Expand description

Structure wrapping a raw, tagged pointer.

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§raw: *mut T

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impl<T> TaggedPointer<T>

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pub fn new(raw: *mut T) -> TaggedPointer<T>

Returns a new TaggedPointer without setting any bits.

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pub fn with_bit(raw: *mut T, bit: usize) -> TaggedPointer<T>

Returns a new TaggedPointer with the given bit set.

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pub fn unset_bit(&mut self, bit: usize)

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pub const fn null() -> TaggedPointer<T>

Returns a null pointer.

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pub fn untagged(self) -> *mut T

Returns the wrapped pointer without any tags.

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pub fn without_tags(self) -> Self

Returns a new TaggedPointer using the current pointer but without any tags.

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pub fn bit_is_set(self, bit: usize) -> bool

Returns true if the given bit is set.

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pub fn set_bit(&mut self, bit: usize)

Sets the given bit.

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pub fn is_null(self) -> bool

Returns true if the current pointer is a null pointer.

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pub fn as_ref<'a>(self) -> Option<&'a T>

Returns an immutable to the pointer’s value.

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pub fn as_mut<'a>(self) -> Option<&'a mut T>

Returns a mutable reference to the pointer’s value.

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pub fn compare_and_swap(&self, current: *mut T, other: *mut T) -> bool

Atomically swaps the internal pointer with another one.

This boolean returns true if the pointer was swapped, false otherwise.

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pub fn atomic_store(&self, other: *mut T)

Atomically replaces the current pointer with the given one.

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pub fn atomic_load(&self) -> *mut T

Atomically loads the pointer.

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pub fn atomic_bit_is_set(&self, bit: usize) -> bool

Checks if a bit is set using an atomic load.

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impl<T> Clone for TaggedPointer<T>

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fn clone(&self) -> TaggedPointer<T>

Returns a duplicate 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<T: Debug + ?Sized> Debug for TaggedPointer<T>

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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<T> Hash for TaggedPointer<T>

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T> PartialEq for TaggedPointer<T>

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fn eq(&self, other: &TaggedPointer<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> Copy for TaggedPointer<T>

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impl<T> Eq for TaggedPointer<T>

Auto Trait Implementations§

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impl<T> Freeze for TaggedPointer<T>
where T: ?Sized,

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impl<T> RefUnwindSafe for TaggedPointer<T>
where T: RefUnwindSafe + ?Sized,

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impl<T> !Send for TaggedPointer<T>

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impl<T> !Sync for TaggedPointer<T>

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impl<T> Unpin for TaggedPointer<T>
where T: ?Sized,

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impl<T> UnsafeUnpin for TaggedPointer<T>
where T: ?Sized,

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impl<T> UnwindSafe for TaggedPointer<T>
where T: RefUnwindSafe + ?Sized,

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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, 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> 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.