extendr_api::prelude

Enum CowRepr

Source 
pub enum CowRepr<'a, A> {
    View(ViewRepr<&'a A>),
    Owned(OwnedRepr<A>),
}
Expand description

CowArray’s representation.

Don’t use this type directly—use the type alias CowArray for the array type!

Variants§

§

View(ViewRepr<&'a A>)

Borrowed data.

§

Owned(OwnedRepr<A>)

Owned data.

Implementations§

Source§

impl<'a, A> CowRepr<'a, A>

Source

pub fn is_view(&self) -> bool

Returns true iff the data is the View variant.

Source

pub fn is_owned(&self) -> bool

Returns true iff the data is the Owned variant.

Trait Implementations§

Source§

impl<'a, A> RawData for CowRepr<'a, A>

Source§

type Elem = A

The array element type.
Source§

impl<'a, A, B> RawDataSubst<B> for CowRepr<'a, A>
where A: 'a, B: 'a,

Source§

type Output = CowRepr<'a, B>

The resulting array storage of the same kind but substituted element type
Source§

unsafe fn data_subst(self) -> <CowRepr<'a, A> as RawDataSubst<B>>::Output

Unsafely translate the data representation from one element representation to another. Read more
Source§

impl<'a, A> Data for CowRepr<'a, A>

Source§

impl<'a, A> DataMut for CowRepr<'a, A>
where A: Clone,

Source§

impl<'a, A> RawDataClone for CowRepr<'a, A>
where A: Clone,

Source§

impl<'a, A> RawDataMut for CowRepr<'a, A>
where A: Clone,

Auto Trait Implementations§

§

impl<'a, A> Freeze for CowRepr<'a, A>

§

impl<'a, A> RefUnwindSafe for CowRepr<'a, A>
where A: RefUnwindSafe,

§

impl<'a, A> Send for CowRepr<'a, A>
where A: Send + Sync,

§

impl<'a, A> Sync for CowRepr<'a, A>
where A: Sync,

§

impl<'a, A> Unpin for CowRepr<'a, A>

§

impl<'a, A> UnwindSafe for CowRepr<'a, A>
where A: RefUnwindSafe,

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

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.

Source§

impl<T> IntoEither for T

Source§

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
Source§

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
§

impl<T> Pointable for T

§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.