Enum NullPolicy 

pub enum NullPolicy {
    Skip,
    PenaliseAbsence,
}

How the comparator treats a field pair where one or both values are absent.

Variants

Skip

Return ComparisonLevel::Null (255), EM skips this field for the pair.

PenaliseAbsence

Return ComparisonLevel::None (0), treated as a hard non-match signal.

Trait Implementations

impl Clone for NullPolicy

fn clone(&self) -> NullPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NullPolicy

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

Formats the value using the given formatter.

impl Default for NullPolicy

fn default() -> NullPolicy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for NullPolicy

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for NullPolicy

fn eq(&self, other: &NullPolicy) -> 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 Serialize for NullPolicy

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for NullPolicy

impl StructuralPartialEq for NullPolicy