Struct pointer_identity::PointerIdentity

pub struct PointerIdentity<P: Pointer>(pub P);

Wrapper type that uses the pointer address rather than the value as the identity for the PartialEq, Eq, PartialOrd, Ord and Hash traits.

This wrapper is transparent thanks to implementing both Deref and DerefMut, so you can use an instance of this just like you would use an instance of the type you are wrapping.

Tuple Fields

0: P

Implementations

impl<P: Pointer> PointerIdentity<P>

pub fn new(value: P) -> Self

Create new from a pointer.

pub fn inner(&self) -> &P

Get reference to inner value.

pub fn into_inner(self) -> P

Convert into inner value.

Trait Implementations

impl<P: Clone + Pointer> Clone for PointerIdentity<P>

fn clone(&self) -> PointerIdentity<P>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<P: Debug + Pointer> Debug for PointerIdentity<P>

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

Formats the value using the given formatter.

impl<P: Pointer> Deref for PointerIdentity<P>

type Target = P

The resulting type after dereferencing.

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

Dereferences the value.

impl<P: Pointer> DerefMut for PointerIdentity<P>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<P: Pointer> From<P> for PointerIdentity<P>

fn from(value: P) -> Self

Converts to this type from the input type.

impl<P: Pointer> Hash for PointerIdentity<P>

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<P: Pointer> Ord for PointerIdentity<P>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<P: Pointer> PartialEq for PointerIdentity<P>

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

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

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.

impl<P: Pointer> PartialOrd for PointerIdentity<P>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<P: Copy + Pointer> Copy for PointerIdentity<P>

impl<P: Pointer> Eq for PointerIdentity<P>