Enum Nullability 

pub enum Nullability {
    NonNullable,
    Nullable,
}

Whether an instance of a DType can be `null or not

Variants

NonNullable

Instances of this DType are guaranteed to be non-nullable

Nullable

Instances of this DType may contain a null value

Implementations

impl Nullability

pub fn is_nullable(&self) -> bool

Returns true if the nullability is Nullable, otherwise returns false.

Examples

use vortex_dtype::Nullability::*;

assert!(!NonNullable.is_nullable());
assert!(Nullable.is_nullable());

Trait Implementations

impl<'a> Arbitrary<'a> for Nullability

fn arbitrary(u: &mut Unstructured<'a>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl BitOr for Nullability

type Output = Nullability

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.

impl BitOrAssign for Nullability

fn bitor_assign(&mut self, rhs: Self)

Performs the |= operation.

impl Clone for Nullability

fn clone(&self) -> Nullability

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Nullability

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

Formats the value using the given formatter.

impl Default for Nullability

fn default() -> Nullability

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Nullability

Deserialize Nullability from a boolean

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Nullability

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

Formats the value using the given formatter.

impl From<Nullability> for bool

fn from(value: Nullability) -> Self

Converts to this type from the input type.

impl From<bool> for Nullability

fn from(value: bool) -> Self

Converts to this type from the input type.

impl Hash for Nullability

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Nullability

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Nullability

Serialize Nullability as a boolean

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Nullability

impl Eq for Nullability

impl StructuralPartialEq for Nullability