Enum ContextRequirement 

#[non_exhaustive]
pub enum ContextRequirement {
    Presence,
    Length,
    ElementContext,
}

Identifies information required by a contextual codec.

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.

Presence

Whether a value is present on the wire.

Length

The number of elements in a contextual array.

ElementContext

A context for an individual array element.

Trait Implementations

impl Clone for ContextRequirement

fn clone(&self) -> ContextRequirement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ContextRequirement

impl Debug for ContextRequirement

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

Formats the value using the given formatter.

impl Display for ContextRequirement

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

Formats the value using the given formatter.

impl Eq for ContextRequirement

impl Hash for ContextRequirement

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 ContextRequirement

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ContextRequirement