Enum NullValue 

#[repr(i32)]
pub enum NullValue {
    NULL_VALUE = 0,
}

NullValue is a singleton enumeration to represent the null value for the Value type union.

The JSON representation for NullValue is JSON null.

Variants

NULL_VALUE = 0

Null value.

Implementations

impl NullValue

pub const NullValue: Self = Self::NULL_VALUE

Idiomatic alias for Self::NULL_VALUE; Debug prints the variant name.

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for NullValue

Available on crate feature arbitrary only.

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

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

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Self>

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 Clone for NullValue

fn clone(&self) -> NullValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NullValue

impl Debug for NullValue

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

Formats the value using the given formatter.

impl Default for NullValue

fn default() -> Self

Returns the “default value” for a type.

impl Enumeration for NullValue

fn from_i32(value: i32) -> Option<Self>

Convert from an i32 wire value to the enum.

fn to_i32(&self) -> i32

Convert the enum to its i32 wire value.

fn proto_name(&self) -> &'static str

The name of this enum variant as it appears in the .proto file.

fn from_proto_name(name: &str) -> Option<Self>

Look up a variant by its protobuf name string.

fn values() -> &'static [Self]

All known variants of this enum, in proto declaration order.

impl Eq for NullValue

impl Hash for NullValue

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 NullValue

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NullValue