Struct BoxA 

pub struct BoxA<T: ?Sized, A: Allocator> { /* private fields */ }

A pointer type that uniquely owns a heap allocation of type T.

dyn values can be boxed using the unsize_box macro.

Implementations

impl<T, A: Allocator> BoxA<T, A>

pub fn new(t: T) -> Self

where A: Default,

Allocates memory then places t into it.

pub fn new_in(t: T, a: A) -> Self

Allocates memory in the given allocator then places t into it.

pub fn from_slice_in(s: &[T], a: A) -> BoxA<[T], A>

where T: Clone,

Allocates memory in the given allocator then clones s into it.

impl<T: ?Sized, A: Allocator> BoxA<T, A>

pub fn from_str(s: &str) -> BoxA<str, A>

where A: Default,

Allocates memory then copies s into it.

pub fn from_str_in(s: &str, a: A) -> BoxA<str, A>

Allocates memory in the given allocator then copies s into it.

Note: there is currently no equivalent in the standard library.

pub fn into_raw_with_allocator(b: Self) -> (*mut T, A)

Convert into raw pointer and allocator.

pub unsafe fn from_raw_in(p: *mut T, a: A) -> Self

Create from raw pointer in specified allocator.

Safety

This function is unsafe because improper use may lead to memory problems. For example, a double-free may occur if the function is called twice on the same raw pointer.

The non-null pointer must point to a block of memory allocated by a.

Trait Implementations

impl<T: ?Sized, A: Allocator> Borrow<T> for BoxA<T, A>

fn borrow(&self) -> &T

Immutably borrows from an owned value.

impl<T: ?Sized, A: Allocator> BorrowMut<T> for BoxA<T, A>

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

Mutably borrows from an owned value.

impl<A: Allocator + Clone> Clone for BoxA<str, A>

fn clone(&self) -> BoxA<str, A>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Clone, A: Allocator + Clone> Clone for BoxA<T, A>

fn clone(&self) -> BoxA<T, A>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: ?Sized + Debug, A: Allocator> Debug for BoxA<T, A>

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

Formats the value using the given formatter.

impl<T: ?Sized, A: Allocator> Deref for BoxA<T, A>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: ?Sized, A: Allocator> DerefMut for BoxA<T, A>

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

Mutably dereferences the value.

impl<'de, T, A> Deserialize<'de> for BoxA<T, A>

where T: Deserialize<'de>, A: Allocator + Default,

Available on crate feature serde only.

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<T: ?Sized + Display, A: Allocator> Display for BoxA<T, A>

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

Formats the value using the given formatter.

impl<T: ?Sized, A: Allocator> Drop for BoxA<T, A>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

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

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl<T: ?Sized + Eq, A: Allocator> Eq for BoxA<T, A>

impl<T: ?Sized + Hash, A: Allocator> Hash for BoxA<T, A>

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: ?Sized + Ord, A: Allocator> Ord for BoxA<T, A>

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: ?Sized + PartialEq, A: Allocator> PartialEq for BoxA<T, A>

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

Equality operator ==.

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

Inequality operator !=.

impl<T: ?Sized + PartialOrd, A: Allocator> PartialOrd for BoxA<T, A>

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

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 + Send, A: Allocator + Send> Send for BoxA<T, A>

impl<T, A> Serialize for BoxA<T, A>

where T: Serialize, A: Allocator,

Available on crate feature serde only.

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl<T: ?Sized + Sync, A: Allocator + Sync> Sync for BoxA<T, A>