Enum Label 

#[repr(i32)]
pub enum Label {
    Optional = 1,
    Required = 2,
    Repeated = 3,
}

Variants

Optional = 1

Required = 2

Repeated = 3

Implementations

impl Label

pub const fn is_valid(value: i32) -> bool

Returns true if value is a variant of Label.

pub fn from_i32(value: i32) -> Option<Label>

👎Deprecated: Use the TryFrom<i32> implementation instead

Converts an i32 to a Label, or None if value is not a valid variant.

Trait Implementations

impl Clone for Label

fn clone(&self) -> Label

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Label

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

Formats the value using the given formatter.

impl Default for Label

fn default() -> Label

Returns the “default value” for a type.

impl From<Label> for i32

fn from(value: Label) -> i32

Converts to this type from the input type.

impl Hash for Label

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 Label

fn eq(&self, other: &Label) -> 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 TryFrom<i32> for Label

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<Label, UnknownEnumValue>

Performs the conversion.

impl Copy for Label

impl Eq for Label

impl StructuralPartialEq for Label