Trait Pointer 

pub trait Pointer: Sized {
    type Target;

    // Required methods
    fn as_ref(&self) -> &Self::Target;
    unsafe fn from_raw(p: *const Self::Target) -> Self;
    fn into_raw(self) -> *const Self::Target;
}

Abstract pointer trait to support various pointer types in collections.

This trait allows the collections to work with:

• Box<T>: Owned, automatically dropped.
• Arc<T>: Shared ownership.
• Rc<T>: Single thread ownership.
• NonNull<T>: Raw non-null pointers (manual memory management).
• *const T: Raw pointers (recommend to use NonNull<T> instead)

Required Associated Types

type Target

Required Methods

fn as_ref(&self) -> &Self::Target

unsafe fn from_raw(p: *const Self::Target) -> Self

fn into_raw(self) -> *const Self::Target

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T> Pointer for *const T

type Target = T

fn as_ref(&self) -> &Self::Target

unsafe fn from_raw(p: *const Self::Target) -> Self

fn into_raw(self) -> *const Self::Target

impl<T> Pointer for Box<T>

type Target = T

fn as_ref(&self) -> &Self::Target

unsafe fn from_raw(p: *const Self::Target) -> Self

fn into_raw(self) -> *const Self::Target

impl<T> Pointer for Rc<T>

type Target = T

fn as_ref(&self) -> &Self::Target

unsafe fn from_raw(p: *const Self::Target) -> Self

fn into_raw(self) -> *const Self::Target

impl<T> Pointer for Arc<T>

type Target = T

fn as_ref(&self) -> &Self::Target

unsafe fn from_raw(p: *const Self::Target) -> Self

fn into_raw(self) -> *const Self::Target

impl<T> Pointer for NonNull<T>

type Target = T

fn as_ref(&self) -> &Self::Target

unsafe fn from_raw(p: *const Self::Target) -> Self

fn into_raw(self) -> *const Self::Target

Implementors