BoxPool

Struct BoxPool 

Source
pub struct BoxPool { /* private fields */ }
Expand description

A pool to hold boxes to extend their lifetime. This is typically useful to build raw COM structures that require raw pointers in struct fields.

Implementations§

Source§

impl BoxPool

Source

pub fn new() -> Self

Source

pub fn push<T: 'static>(&mut self, b: Box<T>) -> *const T

Push a box into the pool, and return a raw pointer to the boxed value. The pointer is valid as long as the pool is alive.

Source

pub fn push_vec<T: 'static>(&mut self, v: Vec<T>) -> (usize, *const T)

Push a Vec into the pool, and return its length and a raw pointer to its data. The pointer is valid as long as the pool is alive.

Trait Implementations§

Source§

impl Debug for BoxPool

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for BoxPool

Source§

fn default() -> BoxPool

Returns the “default value” for a type. Read more

Auto Trait Implementations§

§

impl Freeze for BoxPool

§

impl !RefUnwindSafe for BoxPool

§

impl !Send for BoxPool

§

impl !Sync for BoxPool

§

impl Unpin for BoxPool

§

impl !UnwindSafe for BoxPool

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T> Instrument for T

Source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<T> WithSubscriber for T

Source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
Source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more