Enum ResultCardinality 

#[repr(i32)]
pub enum ResultCardinality {
    Unspecified = 0,
    One = 1,
    Maybe = 2,
    Many = 3,
}

Variants

Unspecified = 0

One = 1

Maybe = 2

Many = 3

Implementations

impl ResultCardinality

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

Returns true if value is a variant of ResultCardinality.

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

👎Deprecated:

Use the TryFrom<i32> implementation instead

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

impl ResultCardinality

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

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<ResultCardinality>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for ResultCardinality

fn clone(&self) -> ResultCardinality

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ResultCardinality

impl Debug for ResultCardinality

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

Formats the value using the given formatter.

impl Default for ResultCardinality

fn default() -> ResultCardinality

Returns the “default value” for a type.

impl Eq for ResultCardinality

impl Hash for ResultCardinality

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

where __H: Hasher,

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 Ord for ResultCardinality

fn cmp(&self, other: &ResultCardinality) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ResultCardinality

fn eq(&self, other: &ResultCardinality) -> 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 PartialOrd for ResultCardinality

fn partial_cmp(&self, other: &ResultCardinality) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ResultCardinality

impl TryFrom<i32> for ResultCardinality

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

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

Performs the conversion.