[−][src]Struct dync::SliceCopy
Implementations
impl<'a, V> SliceCopy<'a, V>
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pub fn from_slice<T: CopyElem>(slice: &[T]) -> Self where
V: VTable<T>,
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V: VTable<T>,
Construct a SliceCopy
from a given typed slice by reusing the provided memory.
impl<'a, V: ?Sized> SliceCopy<'a, V>
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pub fn into_raw_parts(
self
) -> (&'a [MaybeUninit<u8>], ElemInfo, VTableRef<'a, V>)
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self
) -> (&'a [MaybeUninit<u8>], ElemInfo, VTableRef<'a, V>)
Convert this collection into its raw components.
This function exists mainly to enable the into_dyn
macro until CoerceUnsized
is
stabilized.
Safety
Calling this function is not inherently unsafe, but using the returned values incorrectly may cause undefined behaviour.
pub unsafe fn from_raw_parts(
data: &'a [MaybeUninit<u8>],
elem: ElemInfo,
vtable: impl Into<VTableRef<'a, V>>
) -> Self
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data: &'a [MaybeUninit<u8>],
elem: ElemInfo,
vtable: impl Into<VTableRef<'a, V>>
) -> Self
Construct a SliceCopy
from raw bytes and type metadata.
Almost exclusively the only inputs that work here are the ones returned by
into_raw_parts
.
Safety
This function should not be used other than in internal APIs. It exists to enable the
into_dyn
macro until CoerceUsize
is stabilized.
pub fn upcast<U: From<V>>(self) -> SliceCopy<'a, U> where
V: Clone,
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V: Clone,
Upcast the SliceCopy
into a more general base SliceCopy
.
This function converts the underlying virtual function table into a subset of the existing
pub fn check<T: Any>(&self) -> Option<&Self>
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Check if the current buffer contains elements of the specified type.
Returns Some(self)
if the type matches and None
otherwise.
pub fn reborrow(&self) -> SliceCopy<'_, V>
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Construct a clone of the current slice with a reduced lifetime.
This is equivalent to calling subslice
with the entire range.
pub fn element_type_id(&self) -> TypeId
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Get the TypeId
of data stored within this buffer.
pub fn len(&self) -> usize
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Get the number of elements stored in this buffer.
pub fn is_empty(&self) -> bool
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Check if there are any elements stored in this buffer.
pub fn element_size(&self) -> usize
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Get the size of the element type in bytes.
pub fn iter_as<T: Any>(&self) -> Option<Iter<'_, T>>
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Return an iterator to a slice representing typed data.
Returs None
if the given type T
doesn't match the internal.
Examples
use dync::SliceCopy; let vec = vec![1.0_f32, 23.0, 0.01, 42.0, 11.43]; let buf = SliceCopy::<()>::from_slice(vec.as_slice()); for (i, &val) in buf.iter_as::<f32>().unwrap().enumerate() { assert_eq!(val, vec[i]); }
pub fn append_copy_to_vec<'b, T: CopyElem>(
&self,
vec: &'b mut Vec<T>
) -> Option<&'b mut Vec<T>>
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&self,
vec: &'b mut Vec<T>
) -> Option<&'b mut Vec<T>>
Append copied items from this buffer to a given Vec<T>
. Return the mutable reference
Some(vec)
if type matched the internal type and None
otherwise.
pub fn copy_into_vec<T: CopyElem>(&self) -> Option<Vec<T>>
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Copies contents of self
into the given Vec
.
pub fn as_slice<T: Any>(&self) -> Option<&[T]>
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Borrow this slice as a typed slice.
Returns None
if the given type T
doesn't match the internal.
pub fn get_as<T: CopyElem>(&self, i: usize) -> Option<&T>
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Get i
'th element of the buffer.
pub fn iter(&self) -> impl Iterator<Item = CopyValueRef<'_, V>>
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Return an iterator over untyped value references stored in this buffer.
In contrast to iter
, this function defers downcasting on a per element basis.
As a result, this type of iteration is typically less efficient if a typed value is needed
for each element.
Examples
use dync::SliceCopy; let vec = vec![1.0_f32, 23.0, 0.01, 42.0, 11.43]; let buf: SliceCopy = SliceCopy::from(vec.as_slice()); for (i, val) in buf.iter().enumerate() { assert_eq!(val.downcast::<f32>().unwrap(), &vec[i]); }
pub fn into_iter(self) -> impl Iterator<Item = CopyValueRef<'a, V>> where
V: Clone,
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V: Clone,
pub fn chunks_exact(
&self,
chunk_size: usize
) -> impl Iterator<Item = SliceCopy<'_, V>>
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&self,
chunk_size: usize
) -> impl Iterator<Item = SliceCopy<'_, V>>
pub fn split_at(&self, mid: usize) -> (SliceCopy<'_, V>, SliceCopy<'_, V>)
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pub fn get(&self, i: usize) -> CopyValueRef<'_, V>
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Get a immutable value reference to the element at index i
.
pub fn subslice<I>(&self, i: I) -> SliceCopy<'_, V> where
I: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]> + ScaleRange,
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I: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]> + ScaleRange,
Get an immutable subslice representing the given range of indices.
pub fn into_subslice<I>(self, i: I) -> SliceCopy<'a, V> where
I: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]> + ScaleRange,
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I: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]> + ScaleRange,
Conver this slice into a mutable subslice representing the given range of indices.
Trait Implementations
impl<'a, V> Clone for SliceCopy<'a, V> where
V: Clone + ?Sized,
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V: Clone + ?Sized,
impl<'a, T, V> From<&'a [T]> for SliceCopy<'a, V> where
T: CopyElem,
V: VTable<T>,
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T: CopyElem,
V: VTable<T>,
Convert a &[T]
to a SliceCopy
.
impl<'b, 'a: 'b, V: ?Sized> From<&'b SliceCopyMut<'a, V>> for SliceCopy<'b, V>
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fn from(s: &'b SliceCopyMut<'a, V>) -> SliceCopy<'b, V>
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impl<'a, V> From<SliceCopy<'a, V>> for Meta<VTableRef<'a, V>>
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impl<'a, V: ?Sized> From<SliceCopyMut<'a, V>> for SliceCopy<'a, V>
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fn from(s: SliceCopyMut<'a, V>) -> SliceCopy<'a, V>
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Auto Trait Implementations
impl<'a, V: ?Sized> RefUnwindSafe for SliceCopy<'a, V> where
V: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, V: ?Sized> Send for SliceCopy<'a, V> where
V: Send + Sync,
V: Send + Sync,
impl<'a, V: ?Sized> Sync for SliceCopy<'a, V> where
V: Sync,
V: Sync,
impl<'a, V: ?Sized> Unpin for SliceCopy<'a, V>
impl<'a, V: ?Sized> UnwindSafe for SliceCopy<'a, V> where
V: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> CloneBytes for T where
T: 'static + Clone,
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T: 'static + Clone,
unsafe fn clone_bytes(&[MaybeUninit<u8>]) -> Box<[MaybeUninit<u8>]>
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unsafe fn clone_from_bytes(&mut [MaybeUninit<u8>], &[MaybeUninit<u8>])
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unsafe fn clone_into_raw_bytes(&[MaybeUninit<u8>], &mut [MaybeUninit<u8>])
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impl<T> Downcast for T where
T: Any,
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T: Any,
fn into_any(self: Box<T>) -> Box<dyn Any + 'static>
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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fn as_any(&self) -> &(dyn Any + 'static)
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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impl<T> DowncastSync for T where
T: Send + Sync + Any,
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T: Send + Sync + Any,
impl<T> DropBytes for T where
T: 'static,
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T: 'static,
unsafe fn drop_bytes(&mut [MaybeUninit<u8>])
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,