Enum prost_types::field::Cardinality

source · [−]

#[repr(i32)]
pub enum Cardinality {
    Unknown,
    Optional,
    Required,
    Repeated,
}

Expand description

Whether a field is optional, required, or repeated.

Variants

`Unknown`

For fields with unknown cardinality.

`Optional`

For optional fields.

`Required`

For required fields. Proto2 syntax only.

`Repeated`

For repeated fields.

Implementations

source

impl Cardinality

source

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of Cardinality.

source

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

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

Trait Implementations

source

impl Clone for Cardinality

source

fn clone(&self) -> Cardinality

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

source

impl Debug for Cardinality

source

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

Formats the value using the given formatter. Read more

source

impl Default for Cardinality

source

fn default() -> Cardinality

Returns the “default value” for a type. Read more

source

impl From<Cardinality> for i32

source

fn from(value: Cardinality) -> i32

Converts to this type from the input type.

source

impl Hash for Cardinality

source

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

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

source

impl Ord for Cardinality

source

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

This method returns an Ordering between self and other. Read more

1.21.0 · source

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

Compares and returns the maximum of two values. Read more

1.21.0 · source

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

Compares and returns the minimum of two values. Read more

1.50.0 · source

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

Restrict a value to a certain interval. Read more

source

impl PartialEq<Cardinality> for Cardinality

source

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

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

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

This method tests for !=.

source

impl PartialOrd<Cardinality> for Cardinality

source

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

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

1.0.0 · source

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

This method tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source

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

This method tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

source

impl StructuralPartialEq for Cardinality

Auto Trait Implementations

impl RefUnwindSafe for Cardinality

impl Send for Cardinality

impl Sync for Cardinality

impl Unpin for Cardinality

impl UnwindSafe for Cardinality

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum prost_types::field::Cardinality

Variants

Unknown

Optional

Required

Repeated

Implementations

impl Cardinality

pub fn is_valid(value: i32) -> bool

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

Trait Implementations

impl Clone for Cardinality

fn clone(&self) -> Cardinality

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

impl Debug for Cardinality

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

impl Default for Cardinality

fn default() -> Cardinality

impl From<Cardinality> for i32

fn from(value: Cardinality) -> i32

impl Hash for Cardinality

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

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl Ord for Cardinality

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

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

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

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

impl PartialEq<Cardinality> for Cardinality

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

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

impl PartialOrd<Cardinality> for Cardinality

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

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

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

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

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

impl Copy for Cardinality

impl Eq for Cardinality

impl StructuralEq for Cardinality

impl StructuralPartialEq for Cardinality

Auto Trait Implementations

impl RefUnwindSafe for Cardinality

impl Send for Cardinality

impl Sync for Cardinality

impl Unpin for Cardinality

impl UnwindSafe for Cardinality

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Unknown`

`Optional`

`Required`

`Repeated`

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

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,