Struct rc_borrow::RcBorrow

#[repr(transparent)]pub struct RcBorrow<'a, T: ?Sized> { /* fields omitted */ }

Borrowed version of Rc.

This type is guaranteed to have the same repr as &T.

Implementations

impl<'a, T: ?Sized> RcBorrow<'a, T>

pub fn upgrade(this: Self) -> Rc<T>

Convert this borrowed pointer into an owned pointer.

pub fn to_weak(this: Self) -> Weak<T>

Convert this borrowed pointer into a weak pointer.

pub fn downgrade(this: Self) -> &'a T

Convert this borrowed pointer into a standard reference.

This gives you a long-lived reference, whereas dereferencing gives a temporary borrow.

pub fn strong_count(this: Self) -> usize

Get the number of strong owning pointers to this allocation.

pub fn weak_count(this: Self) -> usize

Get the number of weak owning pointers to this allocation.

pub fn into_raw(this: Self) -> *const T

Get a raw pointer that can be used with from_raw.

pub unsafe fn from_raw(ptr: *const T) -> Self

Construct a new RcBorrow from a raw pointer.

The raw pointer must have been previously returned by a call to RcBorrow<U>::into_raw or Rc<U>::as_raw where U must have the same size and alignment as T. This is trivially true if U is T. Note that if U is not T, this is a pointer cast (transmute) between the two types, and the types must be transmute-compatible.

Trait Implementations

impl<'_, T: ?Sized, U: ?Sized> AsRef<U> for RcBorrow<'_, T> where
    T: AsRef<U>, 

fn as_ref(&self) -> &U

Performs the conversion.

impl<'_, T: ?Sized> Binary for RcBorrow<'_, T> where
    T: Binary, 

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

Formats the value using the given formatter.

impl<'_, T: ?Sized> Borrow<T> for RcBorrow<'_, T>

fn borrow(&self) -> &T

Immutably borrows from an owned value.

impl<'_, T: ?Sized> Clone for RcBorrow<'_, T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'_, T: ?Sized> Copy for RcBorrow<'_, T>

impl<'_, T: ?Sized> Debug for RcBorrow<'_, T> where
    T: Debug, 

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

Formats the value using the given formatter.

impl<'_, T: ?Sized> Deref for RcBorrow<'_, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'_, T: ?Sized> Display for RcBorrow<'_, T> where
    T: Display, 

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

Formats the value using the given formatter.

impl<'_, T: ?Sized> Eq for RcBorrow<'_, T> where
    T: Eq, 

impl<'_, T: ?Sized> ErasablePtr for RcBorrow<'_, T> where
    T: Erasable, 

fn erase(this: Self) -> ErasedPtr

Turn this erasable pointer into an erased pointer.

unsafe fn unerase(this: ErasedPtr) -> Self

Unerase this erased pointer.

impl<'a, T: ?Sized> From<&'a Rc<T>> for RcBorrow<'a, T>

fn from(v: &'a Rc<T>) -> RcBorrow<'a, T>

Performs the conversion.

impl<'_, T: ?Sized> Hash for RcBorrow<'_, T> where
    T: Hash, 

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, 

Feeds a slice of this type into the given [Hasher].

impl<'_, T: ?Sized> LowerExp for RcBorrow<'_, T> where
    T: LowerExp, 

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

Formats the value using the given formatter.

impl<'_, T: ?Sized> LowerHex for RcBorrow<'_, T> where
    T: LowerHex, 

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

Formats the value using the given formatter.

impl<'_, T: ?Sized> Octal for RcBorrow<'_, T> where
    T: Octal, 

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

Formats the value using the given formatter.

impl<'_, T: Ord> Ord for RcBorrow<'_, T> where
    T: Ord, 

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

This method returns an [Ordering] between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<'_, T: ?Sized, O> PartialEq<O> for RcBorrow<'_, T> where
    O: Deref,
    T: PartialEq<O::Target>, 

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'_, T: ?Sized, O> PartialOrd<O> for RcBorrow<'_, T> where
    O: Deref,
    T: PartialOrd<O::Target>, 

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

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

#[must_use]fn lt(&self, other: &Rhs) -> bool

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

#[must_use]fn le(&self, other: &Rhs) -> bool

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

#[must_use]fn gt(&self, other: &Rhs) -> bool

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

#[must_use]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<'_, T: ?Sized> Pointer for RcBorrow<'_, T> where
    T: Pointer, 

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

Formats the value using the given formatter.

impl<'a, T: ?Sized> Send for RcBorrow<'a, T> where
    &'a Rc<T>: Send, 

impl<'a, T: ?Sized> Sync for RcBorrow<'a, T> where
    &'a Rc<T>: Sync, 

impl<'_, T: ?Sized> ToSocketAddrs for RcBorrow<'_, T> where
    T: ToSocketAddrs, 

type Iter = T::Iter

Returned iterator over socket addresses which this type may correspond to.

fn to_socket_addrs(&self) -> Result<T::Iter>

Converts this object to an iterator of resolved SocketAddrs.

impl<'_, T: ?Sized> Unpin for RcBorrow<'_, T>

impl<'_, T: ?Sized> UnwindSafe for RcBorrow<'_, T> where
    T: RefUnwindSafe, 

impl<'_, T: ?Sized> UpperExp for RcBorrow<'_, T> where
    T: UpperExp, 

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

Formats the value using the given formatter.

impl<'_, T: ?Sized> UpperHex for RcBorrow<'_, T> where
    T: UpperHex, 

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

Formats the value using the given formatter.