Struct ArcBox

pub struct ArcBox<T: ?Sized> { /* private fields */ }

Known unique version of Arc.

This type is guaranteed to have the same repr as Box<T>. (The heap layout is that of Arc<T>.)

Implementations

impl ArcBox<dyn Any + 'static>

pub fn downcast<T>(self) -> Result<ArcBox<T>, Self>

where T: Any,

Attempt to downcast the box to a concrete type.

Examples

use std::any::Any;

fn print_if_string(value: ArcBox<dyn Any>) {
    if let Ok(string) = value.downcast::<String>() {
        println!("String ({}): {}", string.len(), string);
    }
}

let my_string = "Hello World".to_string();
let my_string: Arc<dyn Any> = Arc::new(my_string); 
print_if_string(my_string.try_into().unwrap());
let my_number: Arc<dyn Any> = Arc::new(0i8);
print_if_string(my_number.try_into().unwrap());

The unsizing as Arc is required until DST coercions are stabilized. Alternatively, activate the unsize feature to convert the pointer via an explicit method call.

impl ArcBox<dyn Any + Send + 'static>

pub fn downcast<T>(self) -> Result<ArcBox<T>, Self>

where T: Any + Send,

Attempt to downcast the box to a concrete type.

Examples

use std::any::Any;

fn print_if_string(value: ArcBox<dyn Any + Send>) {
    if let Ok(string) = value.downcast::<String>() {
        println!("String ({}): {}", string.len(), string);
    }
}

let my_string = "Hello World".to_string();
let my_string: Arc<dyn Any + Send> = Arc::new(my_string); 
print_if_string(my_string.try_into().unwrap());
let my_number: Arc<dyn Any + Send> = Arc::new(0i8);
print_if_string(my_number.try_into().unwrap());

The unsizing as Arc is required until DST coercions are stabilized. Alternatively, activate the unsize feature to convert the pointer via an explicit method call.

impl ArcBox<dyn Any + Send + Sync + 'static>

pub fn downcast<T>(self) -> Result<ArcBox<T>, Self>

where T: Any + Send + Sync,

Attempt to downcast the box to a concrete type.

Examples

use std::any::Any;

fn print_if_string(value: ArcBox<dyn Any + Send + Sync>) {
    if let Ok(string) = value.downcast::<String>() {
        println!("String ({}): {}", string.len(), string);
    }
}

let my_string = "Hello World".to_string();
let my_string: Arc<dyn Any + Send + Sync> = Arc::new(my_string); 
print_if_string(my_string.try_into().unwrap());
let my_number: Arc<dyn Any + Send + Sync> = Arc::new(0i8);
print_if_string(my_number.try_into().unwrap());

The unsizing as Arc is required until DST coercions are stabilized. Alternatively, activate the unsize feature to convert the pointer via an explicit method call.

impl<T: ?Sized> ArcBox<T>

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

Construct an ArcBox from a raw pointer.

Safety

The raw pointer must have previously been acquired by a call to ArcBox::into_raw, or Arc::into_raw where the Arc is known unique.

pub fn get_mut(this: &mut Self) -> Option<&mut T>

👎Deprecated: Use DerefMut instead

Get a mutable reference into the ArcBox.

This method exists only for API compatibility with Arc. Use DerefMut instead.

pub fn get_mut_unchecked(this: &mut Self) -> &mut T

👎Deprecated: Use DerefMut instead

Get a mutable reference into the ArcBox.

This method exists only for API compatibility with Arc. Use DerefMut instead.

pub fn as_raw(this: &Self) -> NonNull<T>

Returns a raw pointer to the object T pointed to by this ArcBox.

Note that this returns a ptr::NonNull, not a raw pointer. That makes this function equivalent to as_raw_non_null.

pub fn into_raw(this: Self) -> NonNull<T>

Consume the ArcBox, returning the wrapped pointer.

To avoid a memory leak, the pointer must be converted back to a ArcBox, using ArcBox::from_raw, or directly into a Arc, using Arc::from_raw.

Note that this returns a ptr::NonNull, not a raw pointer. That makes this function equivalent to into_raw_non_null.

pub fn leak<'a>(this: Self) -> &'a mut T

where T: 'a,

Consume and leak the ArcBox.

pub fn new(data: T) -> Self

where T: Sized,

Create a new ArcBox.

pub fn pin(x: T) -> Pin<ArcBox<T>>

where T: Sized,

Construct a new Pin<ArcBox<T>>. If T does not implement Unpin, then the data will be pinned in memory and unable to be moved.

pub fn into_inner(this: Self) -> T

where T: Sized,

Deconstruct this ArcBox, returning the inner value.

Trait Implementations

impl<S: ?Sized + SliceDst> AllocSliceDst<S> for ArcBox<S>

unsafe fn new_slice_dst<I>(len: usize, init: I) -> Self

where I: FnOnce(NonNull<S>),

Create a new custom slice DST.

impl<T: ?Sized> AsMut<T> for ArcBox<T>

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

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T: ?Sized> AsRef<T> for ArcBox<T>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: ?Sized> Borrow<T> for ArcBox<T>

fn borrow(&self) -> &T

Immutably borrows from an owned value.

impl<T: ?Sized> BorrowMut<T> for ArcBox<T>

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

Mutably borrows from an owned value.

impl<T, U: ?Sized> CoerciblePtr<U> for ArcBox<T>

Unsizes a pointer using the unsize crate.

Usage

use unsize::{Coercion, CoerceUnsize};

let unique = ArcBox::new(|| 42u32);
let unique:ArcBox<dyn Fn() -> u32> =
    unique.unsize(Coercion::<_, dyn Fn() -> u32>::to_fn());

let value = (*unique)();
assert_eq!(value, 42);

Another common usage would be to create a dyn Any.

fn print_if_string(value: ArcBox) { if let Ok(string) = value.downcast::() { println!(“String ({}): {}”, string.len(), string); } }

let my_string = “Hello World”.to_string(); let my_string: ArcBox = ArcBox::new(my_string).unsize(Coercion::to_any()); print_if_string(my_string); let my_number: ArcBox = ArcBox::new(0i8).unsize(Coercion::to_any()); print_if_string(my_number);

type Pointee = T

The type we point to. This influences which kinds of unsizing are possible.

type Output = ArcBox<U>

The output type when unsizing the pointee to U.

fn as_sized_ptr(&mut self) -> *mut T

Get the raw inner pointer.

unsafe fn replace_ptr(self, new: *mut U) -> ArcBox<U>

Replace the container inner pointer with an unsized version.

impl<T> Debug for ArcBox<T>

where T: Debug + ?Sized,

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

Formats the value using the given formatter.

impl<T: ?Sized> Deref for ArcBox<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: ?Sized> DerefMut for ArcBox<T>

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

Mutably dereferences the value.

impl<T> Display for ArcBox<T>

where T: Display + ?Sized,

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

Formats the value using the given formatter.

impl<T> DoubleEndedIterator for ArcBox<T>

where T: DoubleEndedIterator + ?Sized,

fn next_back(&mut self) -> Option<Self::Item>

Removes and returns an element from the end of the iterator.

fn nth_back(&mut self, n: usize) -> Option<Self::Item>

Returns the nth element from the end of the iterator.

fn advance_back_by(&mut self, n: usize) -> Result<(), NonZero<usize>>

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

Advances the iterator from the back by n elements.

fn try_rfold<B, F, R>(&mut self, init: B, f: F) -> R

where Self: Sized, F: FnMut(B, Self::Item) -> R, R: Try<Output = B>,

This is the reverse version of Iterator::try_fold(): it takes elements starting from the back of the iterator.

fn rfold<B, F>(self, init: B, f: F) -> B

where Self: Sized, F: FnMut(B, Self::Item) -> B,

An iterator method that reduces the iterator’s elements to a single, final value, starting from the back.

fn rfind<P>(&mut self, predicate: P) -> Option<Self::Item>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

Searches for an element of an iterator from the back that satisfies a predicate.

impl<T: ?Sized> Drop for ArcBox<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T> ErasablePtr for ArcBox<T>

where T: Erasable + ?Sized,

fn erase(this: Self) -> ErasedPtr

Turn this erasable pointer into an erased pointer.

unsafe fn unerase(this: ErasedPtr) -> Self

Unerase this erased pointer.

impl<T> ExactSizeIterator for ArcBox<T>

where T: ExactSizeIterator + ?Sized,

fn len(&self) -> usize

Returns the exact remaining length of the iterator.

fn is_empty(&self) -> bool

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

Returns true if the iterator is empty.

impl<T> From<&[T]> for ArcBox<[T]>

where T: Clone,

fn from(v: &[T]) -> Self

Converts to this type from the input type.

impl From<&str> for ArcBox<str>

fn from(v: &str) -> Self

Converts to this type from the input type.

impl<T: ?Sized> From<ArcBox<T>> for Arc<T>

fn from(v: ArcBox<T>) -> Arc<T>

Converts to this type from the input type.

impl<T: ?Sized> From<Box<T>> for ArcBox<T>

fn from(v: Box<T>) -> Self

Converts to this type from the input type.

impl From<String> for ArcBox<str>

fn from(v: String) -> Self

Converts to this type from the input type.

impl<T> From<T> for ArcBox<T>

fn from(v: T) -> Self

Converts to this type from the input type.

impl<T> From<Vec<T>> for ArcBox<[T]>

fn from(v: Vec<T>) -> Self

Converts to this type from the input type.

impl<T> FromIterator<T> for ArcBox<[T]>

fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Self

Creates a value from an iterator.

impl<T> Hash for ArcBox<T>

where T: Hash + ?Sized,

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<T> Hasher for ArcBox<T>

where T: Hasher + ?Sized,

fn finish(&self) -> u64

Returns the hash value for the values written so far.

fn write(&mut self, bytes: &[u8])

Writes some data into this Hasher.

fn write_u8(&mut self, i: u8)

Writes a single u8 into this hasher.

fn write_u16(&mut self, i: u16)

Writes a single u16 into this hasher.

fn write_u32(&mut self, i: u32)

Writes a single u32 into this hasher.

fn write_u64(&mut self, i: u64)

Writes a single u64 into this hasher.

fn write_u128(&mut self, i: u128)

Writes a single u128 into this hasher.

fn write_usize(&mut self, i: usize)

Writes a single usize into this hasher.

fn write_i8(&mut self, i: i8)

Writes a single i8 into this hasher.

fn write_i16(&mut self, i: i16)

Writes a single i16 into this hasher.

fn write_i32(&mut self, i: i32)

Writes a single i32 into this hasher.

fn write_i64(&mut self, i: i64)

Writes a single i64 into this hasher.

fn write_i128(&mut self, i: i128)

Writes a single i128 into this hasher.

fn write_isize(&mut self, i: isize)

Writes a single isize into this hasher.

fn write_length_prefix(&mut self, len: usize)

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

Writes a length prefix into this hasher, as part of being prefix-free.

fn write_str(&mut self, s: &str)

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

Writes a single str into this hasher.

impl<T> Iterator for ArcBox<T>

where T: Iterator + ?Sized,

type Item = <T as Iterator>::Item

The type of the elements being iterated over.

fn next(&mut self) -> Option<Self::Item>

Advances the iterator and returns the next value.

fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the iterator.

fn nth(&mut self, n: usize) -> Option<Self::Item>

Returns the nth element of the iterator.

fn next_chunk<const N: usize>( &mut self, ) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>

where Self: Sized,

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

Advances the iterator and returns an array containing the next N values.

fn count(self) -> usize

where Self: Sized,

Consumes the iterator, counting the number of iterations and returning it.

fn last(self) -> Option<Self::Item>

where Self: Sized,

Consumes the iterator, returning the last element.

fn advance_by(&mut self, n: usize) -> Result<(), NonZero<usize>>

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

Advances the iterator by n elements.

fn step_by(self, step: usize) -> StepBy<Self>

where Self: Sized,

Creates an iterator starting at the same point, but stepping by the given amount at each iteration.

fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>

where Self: Sized, U: IntoIterator<Item = Self::Item>,

Takes two iterators and creates a new iterator over both in sequence.

fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>

where Self: Sized, U: IntoIterator,

‘Zips up’ two iterators into a single iterator of pairs.

fn intersperse(self, separator: Self::Item) -> Intersperse<Self>

where Self: Sized, Self::Item: Clone,

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

Creates a new iterator which places a copy of separator between adjacent items of the original iterator.

fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>

where Self: Sized, G: FnMut() -> Self::Item,

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

Creates a new iterator which places an item generated by separator between adjacent items of the original iterator.

fn map<B, F>(self, f: F) -> Map<Self, F>

where Self: Sized, F: FnMut(Self::Item) -> B,

Takes a closure and creates an iterator which calls that closure on each element.

fn for_each<F>(self, f: F)

where Self: Sized, F: FnMut(Self::Item),

Calls a closure on each element of an iterator.

fn filter<P>(self, predicate: P) -> Filter<Self, P>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

Creates an iterator which uses a closure to determine if an element should be yielded.

fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>

where Self: Sized, F: FnMut(Self::Item) -> Option<B>,

Creates an iterator that both filters and maps.

fn enumerate(self) -> Enumerate<Self>

where Self: Sized,

Creates an iterator which gives the current iteration count as well as the next value.

fn peekable(self) -> Peekable<Self>

where Self: Sized,

Creates an iterator which can use the peek and peek_mut methods to look at the next element of the iterator without consuming it. See their documentation for more information.

fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

Creates an iterator that skips elements based on a predicate.

fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

Creates an iterator that yields elements based on a predicate.

fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>

where Self: Sized, P: FnMut(Self::Item) -> Option<B>,

Creates an iterator that both yields elements based on a predicate and maps.

fn skip(self, n: usize) -> Skip<Self>

where Self: Sized,

Creates an iterator that skips the first n elements.

fn take(self, n: usize) -> Take<Self>

where Self: Sized,

Creates an iterator that yields the first n elements, or fewer if the underlying iterator ends sooner.

fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>

where Self: Sized, F: FnMut(&mut St, Self::Item) -> Option<B>,

An iterator adapter which, like fold, holds internal state, but unlike fold, produces a new iterator.

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>

where Self: Sized, U: IntoIterator, F: FnMut(Self::Item) -> U,

Creates an iterator that works like map, but flattens nested structure.

fn flatten(self) -> Flatten<Self>

where Self: Sized, Self::Item: IntoIterator,

Creates an iterator that flattens nested structure.

fn map_windows<F, R, const N: usize>(self, f: F) -> MapWindows<Self, F, N>

where Self: Sized, F: FnMut(&[Self::Item; N]) -> R,

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

Calls the given function f for each contiguous window of size N over self and returns an iterator over the outputs of f. Like slice::windows(), the windows during mapping overlap as well.

fn fuse(self) -> Fuse<Self>

where Self: Sized,

Creates an iterator which ends after the first None.

fn inspect<F>(self, f: F) -> Inspect<Self, F>

where Self: Sized, F: FnMut(&Self::Item),

Does something with each element of an iterator, passing the value on.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Borrows an iterator, rather than consuming it.

fn collect<B>(self) -> B

where B: FromIterator<Self::Item>, Self: Sized,

Transforms an iterator into a collection.

fn try_collect<B>( &mut self, ) -> <<Self::Item as Try>::Residual as Residual<B>>::TryType

where Self: Sized, Self::Item: Try, <Self::Item as Try>::Residual: Residual<B>, B: FromIterator<<Self::Item as Try>::Output>,

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

Fallibly transforms an iterator into a collection, short circuiting if a failure is encountered.

fn collect_into<E>(self, collection: &mut E) -> &mut E

where E: Extend<Self::Item>, Self: Sized,

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

Collects all the items from an iterator into a collection.

fn partition<B, F>(self, f: F) -> (B, B)

where Self: Sized, B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool,

Consumes an iterator, creating two collections from it.

fn partition_in_place<'a, T, P>(self, predicate: P) -> usize

where T: 'a, Self: Sized + DoubleEndedIterator<Item = &'a mut T>, P: FnMut(&T) -> bool,

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

Reorders the elements of this iterator in-place according to the given predicate, such that all those that return true precede all those that return false. Returns the number of true elements found.

fn is_partitioned<P>(self, predicate: P) -> bool

where Self: Sized, P: FnMut(Self::Item) -> bool,

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

Checks if the elements of this iterator are partitioned according to the given predicate, such that all those that return true precede all those that return false.

fn try_fold<B, F, R>(&mut self, init: B, f: F) -> R

where Self: Sized, F: FnMut(B, Self::Item) -> R, R: Try<Output = B>,

An iterator method that applies a function as long as it returns successfully, producing a single, final value.

fn try_for_each<F, R>(&mut self, f: F) -> R

where Self: Sized, F: FnMut(Self::Item) -> R, R: Try<Output = ()>,

An iterator method that applies a fallible function to each item in the iterator, stopping at the first error and returning that error.

fn fold<B, F>(self, init: B, f: F) -> B

where Self: Sized, F: FnMut(B, Self::Item) -> B,

Folds every element into an accumulator by applying an operation, returning the final result.

fn reduce<F>(self, f: F) -> Option<Self::Item>

where Self: Sized, F: FnMut(Self::Item, Self::Item) -> Self::Item,

Reduces the elements to a single one, by repeatedly applying a reducing operation.

fn try_reduce<R>( &mut self, f: impl FnMut(Self::Item, Self::Item) -> R, ) -> <<R as Try>::Residual as Residual<Option<<R as Try>::Output>>>::TryType

where Self: Sized, R: Try<Output = Self::Item>, <R as Try>::Residual: Residual<Option<Self::Item>>,

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

Reduces the elements to a single one by repeatedly applying a reducing operation. If the closure returns a failure, the failure is propagated back to the caller immediately.

fn all<F>(&mut self, f: F) -> bool

where Self: Sized, F: FnMut(Self::Item) -> bool,

Tests if every element of the iterator matches a predicate.

fn any<F>(&mut self, f: F) -> bool

where Self: Sized, F: FnMut(Self::Item) -> bool,

Tests if any element of the iterator matches a predicate.

fn find<P>(&mut self, predicate: P) -> Option<Self::Item>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

Searches for an element of an iterator that satisfies a predicate.

fn find_map<B, F>(&mut self, f: F) -> Option<B>

where Self: Sized, F: FnMut(Self::Item) -> Option<B>,

Applies function to the elements of iterator and returns the first non-none result.

fn try_find<R>( &mut self, f: impl FnMut(&Self::Item) -> R, ) -> <<R as Try>::Residual as Residual<Option<Self::Item>>>::TryType

where Self: Sized, R: Try<Output = bool>, <R as Try>::Residual: Residual<Option<Self::Item>>,

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

Applies function to the elements of iterator and returns the first true result or the first error.

fn position<P>(&mut self, predicate: P) -> Option<usize>

where Self: Sized, P: FnMut(Self::Item) -> bool,

Searches for an element in an iterator, returning its index.

fn rposition<P>(&mut self, predicate: P) -> Option<usize>

where P: FnMut(Self::Item) -> bool, Self: Sized + ExactSizeIterator + DoubleEndedIterator,

Searches for an element in an iterator from the right, returning its index.

fn max(self) -> Option<Self::Item>

where Self: Sized, Self::Item: Ord,

Returns the maximum element of an iterator.

fn min(self) -> Option<Self::Item>

where Self: Sized, Self::Item: Ord,

Returns the minimum element of an iterator.

fn max_by_key<B, F>(self, f: F) -> Option<Self::Item>

where B: Ord, Self: Sized, F: FnMut(&Self::Item) -> B,

Returns the element that gives the maximum value from the specified function.

fn max_by<F>(self, compare: F) -> Option<Self::Item>

where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,

Returns the element that gives the maximum value with respect to the specified comparison function.

fn min_by_key<B, F>(self, f: F) -> Option<Self::Item>

where B: Ord, Self: Sized, F: FnMut(&Self::Item) -> B,

Returns the element that gives the minimum value from the specified function.

fn min_by<F>(self, compare: F) -> Option<Self::Item>

where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,

Returns the element that gives the minimum value with respect to the specified comparison function.

fn rev(self) -> Rev<Self>

where Self: Sized + DoubleEndedIterator,

Reverses an iterator’s direction.

fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)

where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Sized + Iterator<Item = (A, B)>,

Converts an iterator of pairs into a pair of containers.

fn copied<'a, T>(self) -> Copied<Self>

where T: 'a + Copy, Self: Sized + Iterator<Item = &'a T>,

Creates an iterator which copies all of its elements.

fn cloned<'a, T>(self) -> Cloned<Self>

where T: 'a + Clone, Self: Sized + Iterator<Item = &'a T>,

Creates an iterator which clones all of its elements.

fn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>

where Self: Sized,

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

Returns an iterator over N elements of the iterator at a time.

fn sum<S>(self) -> S

where Self: Sized, S: Sum<Self::Item>,

Sums the elements of an iterator.

fn product<P>(self) -> P

where Self: Sized, P: Product<Self::Item>,

Iterates over the entire iterator, multiplying all the elements

fn cmp<I>(self, other: I) -> Ordering

where I: IntoIterator<Item = Self::Item>, Self::Item: Ord, Self: Sized,

Lexicographically compares the elements of this Iterator with those of another.

fn cmp_by<I, F>(self, other: I, cmp: F) -> Ordering

where Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,

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

Lexicographically compares the elements of this Iterator with those of another with respect to the specified comparison function.

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

where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,

Lexicographically compares the PartialOrd elements of this Iterator with those of another. The comparison works like short-circuit evaluation, returning a result without comparing the remaining elements. As soon as an order can be determined, the evaluation stops and a result is returned.

fn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering>

where Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,

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

Lexicographically compares the elements of this Iterator with those of another with respect to the specified comparison function.

fn eq<I>(self, other: I) -> bool

where I: IntoIterator, Self::Item: PartialEq<<I as IntoIterator>::Item>, Self: Sized,

Determines if the elements of this Iterator are equal to those of another.

fn eq_by<I, F>(self, other: I, eq: F) -> bool

where Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,

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

Determines if the elements of this Iterator are equal to those of another with respect to the specified equality function.

fn ne<I>(self, other: I) -> bool

where I: IntoIterator, Self::Item: PartialEq<<I as IntoIterator>::Item>, Self: Sized,

Determines if the elements of this Iterator are not equal to those of another.

fn lt<I>(self, other: I) -> bool

where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,

Determines if the elements of this Iterator are lexicographically less than those of another.

fn le<I>(self, other: I) -> bool

where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,

Determines if the elements of this Iterator are lexicographically less or equal to those of another.

fn gt<I>(self, other: I) -> bool

where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,

Determines if the elements of this Iterator are lexicographically greater than those of another.

fn ge<I>(self, other: I) -> bool

where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,

Determines if the elements of this Iterator are lexicographically greater than or equal to those of another.

fn is_sorted(self) -> bool

where Self: Sized, Self::Item: PartialOrd,

Checks if the elements of this iterator are sorted.

fn is_sorted_by<F>(self, compare: F) -> bool

where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> bool,

Checks if the elements of this iterator are sorted using the given comparator function.

fn is_sorted_by_key<F, K>(self, f: F) -> bool

where Self: Sized, F: FnMut(Self::Item) -> K, K: PartialOrd,

Checks if the elements of this iterator are sorted using the given key extraction function.

impl<T> Ord for ArcBox<T>

where T: Ord + ?Sized,

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T, O> PartialEq<O> for ArcBox<T>

where O: Deref, T: PartialEq<O::Target> + ?Sized,

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T, O> PartialOrd<O> for ArcBox<T>

where O: Deref, T: PartialOrd<O::Target> + ?Sized,

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<T: ?Sized> Pointer for ArcBox<T>

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

Formats the value using the given formatter.

impl<S: ?Sized + SliceDst> TryAllocSliceDst<S> for ArcBox<S>

unsafe fn try_new_slice_dst<I, E>(len: usize, init: I) -> Result<Self, E>

where I: FnOnce(NonNull<S>) -> Result<(), E>,

Create a new custom slice DST with a fallible initialization function.

impl<T: ?Sized> TryFrom<Arc<T>> for ArcBox<T>

type Error = Arc<T>

The type returned in the event of a conversion error.

fn try_from(v: Arc<T>) -> Result<ArcBox<T>, Arc<T>>

Performs the conversion.

impl<T: ?Sized> TryFrom<Pin<Arc<T>>> for Pin<ArcBox<T>>

type Error = Pin<Arc<T>>

The type returned in the event of a conversion error.

fn try_from(v: Pin<Arc<T>>) -> Result<Pin<ArcBox<T>>, Pin<Arc<T>>>

Performs the conversion.

impl<T> Eq for ArcBox<T>

where T: Eq + ?Sized,

impl<T> FusedIterator for ArcBox<T>

where T: FusedIterator + ?Sized,

impl<T: ?Sized> Send for ArcBox<T>

where Box<T>: Send,

impl<T: ?Sized> Sync for ArcBox<T>

where Box<T>: Sync,

impl<T: ?Sized> Unpin for ArcBox<T>