pub struct AllocScratch { /* private fields */ }
Expand description

Scratch space that always uses the global allocator.

This allocator will panic if scratch is popped that it did not allocate. For this reason, it should only ever be used as a fallback allocator.

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impl AllocScratch

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pub fn new() -> Self

Creates a new scratch allocator with no allocation limit.

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pub fn with_limit(limit: usize) -> Self

Creates a new scratch allocator with the given allocation limit.

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impl Debug for AllocScratch

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

Formats the value using the given formatter. Read more
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impl Default for AllocScratch

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fn default() -> Self

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

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl Fallible for AllocScratch

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type Error = AllocScratchError

The error produced by any failing methods.
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impl ScratchSpace for AllocScratch

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unsafe fn push_scratch( &mut self, layout: Layout ) -> Result<NonNull<[u8]>, Self::Error>

Allocates scratch space of the requested size. Read more
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unsafe fn pop_scratch( &mut self, ptr: NonNull<u8>, layout: Layout ) -> Result<(), Self::Error>

Deallocates previously allocated scratch space. Read more
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impl Send for AllocScratch

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impl Sync for AllocScratch

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

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fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> LayoutRaw for T

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fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Gets the layout of the type.
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impl<T> Pointee for T

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type Metadata = ()

The type for metadata in pointers and references to Self.
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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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<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.