Struct bump_scope::WithoutDealloc
source · pub struct WithoutDealloc<A>(pub A);
Expand description
Wraps an bump allocator and does nothing on deallocate
.
This type only implements Allocator
for wrapped types that implement BumpAllocator
, so you don’t accidentally leak memory.
Tuple Fields§
§0: A
Implementations§
source§impl<A> WithoutDealloc<A>
impl<A> WithoutDealloc<A>
sourcepub fn without_shrink(self) -> WithoutShrink<Self>
pub fn without_shrink(self) -> WithoutShrink<Self>
Wraps self
in WithoutShrink
so that shrink
becomes a no-op.
Trait Implementations§
source§impl<A: BumpAllocator> Allocator for WithoutDealloc<A>
impl<A: BumpAllocator> Allocator for WithoutDealloc<A>
source§fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api
)Attempts to allocate a block of memory. Read more
source§fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api
)Behaves like
allocate
, but also ensures that the returned memory is zero-initialized. Read moresource§unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)
unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)
🔬This is a nightly-only experimental API. (
allocator_api
)Deallocates the memory referenced by
ptr
. Read moresource§unsafe fn grow(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout,
) -> Result<NonNull<[u8]>, AllocError>
unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api
)Attempts to extend the memory block. Read more
source§unsafe fn grow_zeroed(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout,
) -> Result<NonNull<[u8]>, AllocError>
unsafe fn grow_zeroed( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api
)Behaves like
grow
, but also ensures that the new contents are set to zero before being
returned. Read moresource§impl<A: Clone> Clone for WithoutDealloc<A>
impl<A: Clone> Clone for WithoutDealloc<A>
source§fn clone(&self) -> WithoutDealloc<A>
fn clone(&self) -> WithoutDealloc<A>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<A: Debug> Debug for WithoutDealloc<A>
impl<A: Debug> Debug for WithoutDealloc<A>
source§impl<A: Hash> Hash for WithoutDealloc<A>
impl<A: Hash> Hash for WithoutDealloc<A>
source§impl<A: Ord> Ord for WithoutDealloc<A>
impl<A: Ord> Ord for WithoutDealloc<A>
source§fn cmp(&self, other: &WithoutDealloc<A>) -> Ordering
fn cmp(&self, other: &WithoutDealloc<A>) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl<A: PartialEq> PartialEq for WithoutDealloc<A>
impl<A: PartialEq> PartialEq for WithoutDealloc<A>
source§fn eq(&self, other: &WithoutDealloc<A>) -> bool
fn eq(&self, other: &WithoutDealloc<A>) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl<A: PartialOrd> PartialOrd for WithoutDealloc<A>
impl<A: PartialOrd> PartialOrd for WithoutDealloc<A>
source§fn partial_cmp(&self, other: &WithoutDealloc<A>) -> Option<Ordering>
fn partial_cmp(&self, other: &WithoutDealloc<A>) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moreimpl<A: BumpAllocator> BumpAllocator for WithoutDealloc<A>
impl<A: Copy> Copy for WithoutDealloc<A>
impl<A: Eq> Eq for WithoutDealloc<A>
impl<A> StructuralPartialEq for WithoutDealloc<A>
Auto Trait Implementations§
impl<A> Freeze for WithoutDealloc<A>where
A: Freeze,
impl<A> RefUnwindSafe for WithoutDealloc<A>where
A: RefUnwindSafe,
impl<A> Send for WithoutDealloc<A>where
A: Send,
impl<A> Sync for WithoutDealloc<A>where
A: Sync,
impl<A> Unpin for WithoutDealloc<A>where
A: Unpin,
impl<A> UnwindSafe for WithoutDealloc<A>where
A: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more