Enum MaskRule 

#[non_exhaustive]
pub enum MaskRule {
    UnsaltedSha256,
    Redact(String),
    Null,
    Truncate(usize),
    Passthrough,
}

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.

UnsaltedSha256

Deterministic SHA-256 hash (no salt).

Provides obfuscation only — not GDPR-safe pseudonymization for low-cardinality fields. Use [MaskRule::HmacSha256] or [MaskRule::Encrypt] for keyed pseudonymization.

Redact(String)

Null

Truncate(usize)

Passthrough

Leave the field value unchanged.

This is the default_rule for MaskHashConfig, meaning fields not explicitly listed in mask_rules pass through unmodified unless you call MaskHashConfig::hash_all.

Trait Implementations

impl Clone for MaskRule

fn clone(&self) -> MaskRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MaskRule

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

Formats the value using the given formatter.

impl Eq for MaskRule

impl PartialEq for MaskRule

fn eq(&self, other: &MaskRule) -> 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 StructuralPartialEq for MaskRule