Struct composable_allocators::Or

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pub struct Or<Primary: Allocator, Fallback: Allocator>(pub Primary, pub Fallback);

Tuple Fields

0: Primary1: Fallback

Trait Implementations

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impl<Primary: Composable, Fallback: Allocator> Allocator for Or<Primary, Fallback>

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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

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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 more

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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

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unsafe fn shrink(
 &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 shrink the memory block. Read more

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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 more

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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 more

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fn by_ref(&self) -> &Self

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

Creates a “by reference” adapter for this instance of Allocator. Read more

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impl<Primary: Composable, Fallback: Composable> Composable for Or<Primary, Fallback>

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unsafe fn has_allocated(&self, ptr: NonNull<u8>, layout: Layout) -> bool

Auto Trait Implementations

impl<Primary, Fallback> RefUnwindSafe for Or<Primary, Fallback> where
Fallback: RefUnwindSafe,
Primary: RefUnwindSafe,

impl<Primary, Fallback> Send for Or<Primary, Fallback> where
Fallback: Send,
Primary: Send,

impl<Primary, Fallback> Sync for Or<Primary, Fallback> where
Fallback: Sync,
Primary: Sync,

impl<Primary, Fallback> Unpin for Or<Primary, Fallback> where
Fallback: Unpin,
Primary: Unpin,

impl<Primary, Fallback> UnwindSafe for Or<Primary, Fallback> where
Fallback: UnwindSafe,
Primary: UnwindSafe,

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Struct composable_allocators::Or

Tuple Fields

Trait Implementations

impl<Primary: Composable, Fallback: Allocator> Allocator for Or<Primary, Fallback>

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)

unsafe fn grow(
    &self,
    ptr: NonNull<u8>,
    old_layout: Layout,
    new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn shrink(
    &self,
    ptr: NonNull<u8>,
    old_layout: Layout,
    new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn grow_zeroed(
    &self,
    ptr: NonNull<u8>,
    old_layout: Layout,
    new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

fn by_ref(&self) -> &Self

impl<Primary: Composable, Fallback: Composable> Composable for Or<Primary, Fallback>

unsafe fn has_allocated(&self, ptr: NonNull<u8>, layout: Layout) -> bool

Auto Trait Implementations

impl<Primary, Fallback> RefUnwindSafe for Or<Primary, Fallback> where
Fallback: RefUnwindSafe,
Primary: RefUnwindSafe,

impl<Primary, Fallback> Send for Or<Primary, Fallback> where
Fallback: Send,
Primary: Send,

impl<Primary, Fallback> Sync for Or<Primary, Fallback> where
Fallback: Sync,
Primary: Sync,

impl<Primary, Fallback> Unpin for Or<Primary, Fallback> where
Fallback: Unpin,
Primary: Unpin,

impl<Primary, Fallback> UnwindSafe for Or<Primary, Fallback> where
Fallback: UnwindSafe,
Primary: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

Struct composable_allocators::Or

Tuple Fields

Trait Implementations

impl<Primary: Composable, Fallback: Allocator> Allocator for Or<Primary, Fallback>

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)

unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

fn by_ref(&self) -> &Self

impl<Primary: Composable, Fallback: Composable> Composable for Or<Primary, Fallback>

unsafe fn has_allocated(&self, ptr: NonNull<u8>, layout: Layout) -> bool

Auto Trait Implementations

impl<Primary, Fallback> RefUnwindSafe for Or<Primary, Fallback> where Fallback: RefUnwindSafe, Primary: RefUnwindSafe,

impl<Primary, Fallback> Send for Or<Primary, Fallback> where Fallback: Send, Primary: Send,

impl<Primary, Fallback> Sync for Or<Primary, Fallback> where Fallback: Sync, Primary: Sync,

impl<Primary, Fallback> Unpin for Or<Primary, Fallback> where Fallback: Unpin, Primary: Unpin,

impl<Primary, Fallback> UnwindSafe for Or<Primary, Fallback> where Fallback: UnwindSafe, Primary: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn grow(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn shrink(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn grow_zeroed(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

impl<Primary, Fallback> RefUnwindSafe for Or<Primary, Fallback> where
Fallback: RefUnwindSafe,
Primary: RefUnwindSafe,

impl<Primary, Fallback> Send for Or<Primary, Fallback> where
Fallback: Send,
Primary: Send,

impl<Primary, Fallback> Sync for Or<Primary, Fallback> where
Fallback: Sync,
Primary: Sync,

impl<Primary, Fallback> Unpin for Or<Primary, Fallback> where
Fallback: Unpin,
Primary: Unpin,

impl<Primary, Fallback> UnwindSafe for Or<Primary, Fallback> where
Fallback: UnwindSafe,
Primary: UnwindSafe,

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

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

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

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

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

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