Struct NullValue

pub struct NullValue;

A message representing the null value. We need a type that can be referenced from the generated code.

Implementations

impl NullValue

Protobuf represents NullValue as an enum. In some contexts, it is useful to make it behave as if it was.

pub fn value(&self) -> i32

Gets the value.

pub fn as_str_name(&self) -> Cow<'static, str>

Gets the value as a string.

pub fn from_str_name(_name: &str) -> Option<Self>

Creates a value from the value name

Trait Implementations

impl Clone for NullValue

fn clone(&self) -> NullValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NullValue

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

Formats the value using the given formatter.

impl Default for NullValue

fn default() -> NullValue

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for NullValue

Implement serde deserialization for NullValue.

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&NullValue> for Value

fn from(_value: &NullValue) -> Self

Converts to this type from the input type.

impl From<NullValue> for Value

fn from(_value: NullValue) -> Self

Converts to this type from the input type.

impl From<NullValue> for i32

fn from(_value: NullValue) -> Self

Converts to this type from the input type.

impl From<i32> for NullValue

fn from(_value: i32) -> Self

Converts to this type from the input type.

impl PartialEq for NullValue

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

Implement serde serialization for NullValue.

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for NullValue