pub struct AllocationHandle(/* private fields */);
Expand description

An opaque handle identifying an allocation inside an allocator.

Implementations§

source§

impl AllocationHandle

source

pub const fn null() -> Self

Creates a null AllocationHandle.

Use this if you don’t have anything that you need to associate with the allocation.

source

pub const fn from_ptr(ptr: *mut ()) -> Self

Stores a pointer in an AllocationHandle.

Use this if you want to associate an allocation with some (host) heap allocation.

source

pub const fn from_index(index: usize) -> Self

Stores an index inside an AllocationHandle.

Use this if you want to associate an allocation with some index.

source

pub const fn as_ptr(self) -> *mut ()

Retrieves a previously-stored pointer from the AllocationHandle.

If this handle hasn’t been created using from_ptr then this will return an invalid pointer, dereferencing which is undefined behavior.

source

pub const fn as_index(self) -> usize

Retrieves a previously-stored index from the AllocationHandle.

If this handle hasn’t been created using from_index then this will return a bogus result.

Trait Implementations§

source§

impl Clone for AllocationHandle

source§

fn clone(&self) -> AllocationHandle

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
source§

impl Debug for AllocationHandle

source§

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

Formats the value using the given formatter. Read more
source§

impl Hash for AllocationHandle

source§

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

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
source§

impl PartialEq for AllocationHandle

source§

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

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl Copy for AllocationHandle

source§

impl Eq for AllocationHandle

source§

impl Send for AllocationHandle

source§

impl StructuralEq for AllocationHandle

source§

impl StructuralPartialEq for AllocationHandle

source§

impl Sync for AllocationHandle

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

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.

source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.