Enum FieldLabel 

pub enum FieldLabel {
    None,
    Repeated,
    Optional,
}

Protocol Buffer field label

Variants

None

No label (proto3 default: optional for scalars, required for messages)

Repeated

Repeated field (becomes a list)

Optional

Optional field (may be unset)

Trait Implementations

impl Clone for FieldLabel

fn clone(&self) -> FieldLabel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldLabel

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FieldLabel

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for FieldLabel

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

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 FieldLabel

impl Eq for FieldLabel

impl StructuralPartialEq for FieldLabel