Enum FieldKind 

#[non_exhaustive]
pub enum FieldKind {
    MapKey,
    MapValue,
    RepeatedItem,
    Normal,
}

Specifies whether the target of the validation is a field/element as a whole, a value or key in a map field, or an item in a repeated field.

For example, if the validation is performed on a repeated field but the validation analyzes the collection as a whole (for example, its length), the FieldKind would be Normal, whereas if the validation is performed on its individual items, then it would be set to RepeatedItem.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MapKey

MapValue

RepeatedItem

Normal

Signifies that the target of validation is either an item as a whole (for validators defined at the top level of messages/oneofs) or a field.

Implementations

impl FieldKind

pub const fn is_map_key(&self) -> bool

Returns true if the field kind is MapKey.

pub const fn is_map_value(&self) -> bool

Returns true if the field kind is MapValue.

pub const fn is_repeated_item(&self) -> bool

Returns true if the field kind is RepeatedItem.

pub const fn is_normal(&self) -> bool

Returns true if the field kind is Normal.

Trait Implementations

impl Clone for FieldKind

fn clone(&self) -> FieldKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldKind

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

Formats the value using the given formatter.

impl Default for FieldKind

fn default() -> Self

Returns the “default value” for a type.

impl Hash for FieldKind

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 FieldKind

fn eq(&self, other: &FieldKind) -> 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 Copy for FieldKind

impl Eq for FieldKind

impl StructuralPartialEq for FieldKind