Struct light_arena::AllocatorPlacer

pub struct AllocatorPlacer<'a, T: 'a + Sized + Copy> { /* fields omitted */ }

Object representing a place to put a newly requested allocation.

Drop is never called so the placement new can only be run on Sized + Copy types. The lifetime of the place, and the subsequently placed T is tied to the lifetime of the Allocator which created the AllocatorPlacer.

Trait Implementations

impl<'a, T: 'a + Sized + Copy> Place<T> for AllocatorPlacer<'a, T>

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

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

Returns the address where the input value will be written. Note that the data at this address is generally uninitialized, and thus one should use ptr::write for initializing it.

impl<'a, T: 'a + Sized + Copy> InPlace<T> for AllocatorPlacer<'a, T>

type Owner = &'a mut T

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

Owner is the type of the end value of PLACE <- EXPR

unsafe fn finalize(self) -> Self::Owner

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

Converts self into the final value, shifting deallocation/cleanup responsibilities (if any remain), over to the returned instance of Owner and forgetting self.