Struct zerovec::ule::option::OptionULE

source ·
#[repr(C, packed(1))]
pub struct OptionULE<U>(bool, MaybeUninit<U>);
Expand description

This type is the ULE type for Option<U> where U is a ULE type

§Example

use zerovec::ZeroVec;

let z = ZeroVec::alloc_from_slice(&[
    Some('a'),
    Some('á'),
    Some('ø'),
    None,
    Some('ł'),
]);

assert_eq!(z.get(2), Some(Some('ø')));
assert_eq!(z.get(3), Some(None));

Tuple Fields§

§0: bool§1: MaybeUninit<U>

Implementations§

source§

impl<U: Copy> OptionULE<U>

source

pub fn get(self) -> Option<U>

Obtain this as an Option<T>

source

pub fn new(opt: Option<U>) -> Self

Construct an OptionULE<U> from an equivalent Option<T>

Trait Implementations§

source§

impl<U: Copy> Clone for OptionULE<U>

source§

fn clone(&self) -> Self

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
source§

impl<U: Copy + Debug> Debug for OptionULE<U>

source§

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

Formats the value using the given formatter. Read more
source§

impl<U: Copy + PartialEq> PartialEq for OptionULE<U>

source§

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl<U: ULE> ULE for OptionULE<U>

zeroed or valid-T byte sequences to fill it)

source§

fn validate_byte_slice(bytes: &[u8]) -> Result<(), ZeroVecError>

Validates a byte slice, &[u8]. Read more
source§

fn parse_byte_slice(bytes: &[u8]) -> Result<&[Self], ZeroVecError>

Parses a byte slice, &[u8], and return it as &[Self] with the same lifetime. Read more
source§

unsafe fn from_byte_slice_unchecked(bytes: &[u8]) -> &[Self]

Takes a byte slice, &[u8], and return it as &[Self] with the same lifetime, assuming that this byte slice has previously been run through Self::parse_byte_slice() with success. Read more
source§

fn as_byte_slice(slice: &[Self]) -> &[u8]

Given &[Self], returns a &[u8] with the same lifetime. Read more
source§

impl<U: Copy> Copy for OptionULE<U>

source§

impl<U: Copy + Eq> Eq for OptionULE<U>

Auto Trait Implementations§

§

impl<U> Freeze for OptionULE<U>
where U: Freeze,

§

impl<U> RefUnwindSafe for OptionULE<U>
where U: RefUnwindSafe,

§

impl<U> Send for OptionULE<U>
where U: Send,

§

impl<U> Sync for OptionULE<U>
where U: Sync,

§

impl<U> Unpin for OptionULE<U>
where U: Unpin,

§

impl<U> UnwindSafe for OptionULE<U>
where U: UnwindSafe,

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> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

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

§

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>,

§

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.
source§

impl<T> ErasedDestructor for T
where T: 'static,