polars_core::utils

Struct NoNull

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pub struct NoNull<T> { /* private fields */ }
Expand description

Just a wrapper structure which is useful for certain impl specializations.

This is for instance use to implement impl<T> FromIterator<T::Native> for NoNull<ChunkedArray<T>> as Option<T::Native> was already implemented: impl<T> FromIterator<Option<T::Native>> for ChunkedArray<T>

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impl<T> NoNull<T>

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pub fn new(inner: T) -> Self

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pub fn into_inner(self) -> T

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impl<T> Deref for NoNull<T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T> DerefMut for NoNull<T>

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl<T> FromIterator<<T as PolarsNumericType>::Native> for NoNull<ChunkedArray<T>>
where T: PolarsNumericType,

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fn from_iter<I: IntoIterator<Item = T::Native>>(iter: I) -> Self

Creates a value from an iterator. Read more
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impl FromIterator<bool> for NoNull<BooleanChunked>

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fn from_iter<I: IntoIterator<Item = bool>>(iter: I) -> Self

Creates a value from an iterator. Read more
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impl<T> FromIteratorReversed<<T as PolarsNumericType>::Native> for NoNull<ChunkedArray<T>>
where T: PolarsNumericType,

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fn from_trusted_len_iter_rev<I: TrustedLen<Item = T::Native>>(iter: I) -> Self

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impl FromIteratorReversed<bool> for NoNull<BooleanChunked>

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fn from_trusted_len_iter_rev<I: TrustedLen<Item = bool>>(iter: I) -> Self

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impl<T> FromParallelIterator<<T as PolarsNumericType>::Native> for NoNull<ChunkedArray<T>>
where T: PolarsNumericType,

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fn from_par_iter<I: IntoParallelIterator<Item = T::Native>>(iter: I) -> Self

Creates an instance of the collection from the parallel iterator par_iter. Read more
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impl<T> FromTrustedLenIterator<<T as PolarsNumericType>::Native> for NoNull<ChunkedArray<T>>
where T: PolarsNumericType,

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fn from_iter_trusted_length<I: IntoIterator<Item = T::Native>>(iter: I) -> Self
where I::IntoIter: TrustedLen,

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impl FromTrustedLenIterator<bool> for NoNull<BooleanChunked>

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fn from_iter_trusted_length<I: IntoIterator<Item = bool>>(iter: I) -> Self

Auto Trait Implementations§

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impl<T> Freeze for NoNull<T>
where T: Freeze,

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impl<T> RefUnwindSafe for NoNull<T>
where T: RefUnwindSafe,

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impl<T> Send for NoNull<T>
where T: Send,

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impl<T> Sync for NoNull<T>
where T: Sync,

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impl<T> Unpin for NoNull<T>
where T: Unpin,

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impl<T> UnwindSafe for NoNull<T>
where T: 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,

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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<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 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> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
Available on non-bootstrap only.
The target type on which the method may be called.
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V