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ReinterpretSink

Struct ReinterpretSink 

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pub struct ReinterpretSink<'a, F, T> { /* private fields */ }
Expand description

A sink that reads F-values and writes T-values over the same backing slice of F, reinterpreting each T as F-bits on write.

Requires size_of::<F>() == size_of::<T>() and align_of::<F>() == align_of::<T>(). Both hold for any pair of NativePType primitives with equal byte width (e.g. u32f32, u64i64, f64u64).

Use this when an in-place kernel needs to convert lanes between two types of identical width without allocating a second buffer. After the kernel completes every slot holds a valid T-bit pattern; the caller can recover a typed view via BufferMut::transmute::<T>().

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impl<'a, F, T> ReinterpretSink<'a, F, T>

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pub fn new(slice: &'a mut [F]) -> Self

Construct a ReinterpretSink from &mut [F].

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Panics if size_of::<F>() != size_of::<T>() or align_of::<F>() != align_of::<T>().

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impl<F: Copy, T: Copy> IndexedSink for ReinterpretSink<'_, F, T>

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type Write = T

The per-lane write type. Equal to <Self as IndexedSource>::Item for &mut [T]; different for ReinterpretSink.
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unsafe fn set_unchecked(&mut self, i: usize, value: T)

Write value into lane i without bounds checking. Read more
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impl<F: Copy, T: Copy> IndexedSource for ReinterpretSink<'_, F, T>

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type Item = F

The per-lane item type. Must be Copy so the kernels can pass it through the closure by value without extra moves.
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fn len(&self) -> usize

Logical lane count.
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unsafe fn get_unchecked(&self, i: usize) -> F

Read the lane at i without bounds checking. Read more
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fn is_empty(&self) -> bool

Returns true when there are no lanes.

Auto Trait Implementations§

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impl<'a, F, T> !UnwindSafe for ReinterpretSink<'a, F, T>

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impl<'a, F, T> Freeze for ReinterpretSink<'a, F, T>

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impl<'a, F, T> RefUnwindSafe for ReinterpretSink<'a, F, T>

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impl<'a, F, T> Send for ReinterpretSink<'a, F, T>
where T: Send, F: Send,

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impl<'a, F, T> Sync for ReinterpretSink<'a, F, T>
where T: Sync, F: Sync,

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impl<'a, F, T> Unpin for ReinterpretSink<'a, F, T>
where T: Unpin,

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impl<'a, F, T> UnsafeUnpin for ReinterpretSink<'a, F, T>

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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,

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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 T
where 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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> Conv for T

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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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<S> IndexedSinkExt for S
where S: IndexedSink,

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fn map_into_in_place<F>(self, f: F)
where F: FnMut(Self::Item) -> Self::Write,

In-place counterpart of IndexedSourceExt::map_into. Each lane is replaced with f(self[i]). Read more
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fn try_map_in_place<F>(self, f: F) -> Result<(), usize>
where Self::Write: Default, F: FnMut(Self::Item) -> Option<Self::Write>,

In-place counterpart of IndexedSourceExt::try_map_into. Each lane is replaced with f(self[i]), or Self::Write::default() when f returns None. On failure returns Err(first_failing_lane); the buffer state on Err is unspecified. Read more
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fn try_map_masked_in_place<F>(self, mask: &BitBuffer, f: F) -> Result<(), usize>
where Self::Write: Default, F: FnMut(Self::Item) -> Option<Self::Write>,

In-place counterpart of IndexedSourceExt::try_map_masked_into. Each lane of self is replaced with f(self[i]), or Self::Write::default() if f returned None. On failure returns Err(first_failing_lane); lanes before that point have been written, and lanes within the failing chunk hold their unwrapped-or-default result. The buffer state on Err is intentionally unspecified. Read more
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impl<S> IndexedSourceExt for S
where S: IndexedSource,

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fn try_map_masked_into<R, F>( self, mask: &BitBuffer, out: &mut [MaybeUninit<R>], f: F, ) -> Result<(), usize>
where R: Copy + Default, F: FnMut(Self::Item) -> Option<R>,

Fallible map with mask-aware error attribution. f returns Option<R>; None indicates a per-lane failure (e.g. range overflow on a narrowing cast). Read more
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fn map_into<R, F>(self, out: &mut [MaybeUninit<R>], f: F)
where F: FnMut(Self::Item) -> R,

Apply f(value) lane-by-lane with no validity awareness at all — every closure invocation is treated as “happened”, regardless of whether the lane is null. Use this only when the input is known non-nullable. Read more
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fn map_bits_into<F>(self, words: &mut [u64], f: F)
where F: FnMut(Self::Item) -> bool,

Apply the predicate f(value) lane-by-lane and bit-pack the results into words, LSB-first, 64 lanes per u64. Read more
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fn try_map_into<R, F>( self, out: &mut [MaybeUninit<R>], f: F, ) -> Result<(), usize>
where R: Copy + Default, F: FnMut(Self::Item) -> Option<R>,

Fallible map with no validity awareness at all — every None returned by the closure is treated as a failure, even at null lanes. Read more
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impl<T, U> Into<U> for T
where 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pipe for T
where T: ?Sized,

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
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fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.