Enum PatchPurpose 

#[repr(u16)]
pub enum PatchPurpose {
    Normal = 1,
    RollbackDraft = 2,
}

Identity-bearing patch purpose.

Variants

Normal = 1

Ordinary Patch. This is the default when tag 5 is absent and must not be encoded explicitly.

RollbackDraft = 2

Rollback draft Patch. This survives WAL-to-object persistence for classification.

Implementations

impl PatchPurpose

pub const fn code(self) -> u16

Stable numeric code.

pub fn from_present_code(code: u16) -> Result<Self>

Parse a stable code from a present tag-5 purpose field.

pub fn decode_from_patch_payload(bytes: &[u8]) -> Result<Self>

Decode only the top-level PatchPayload purpose field, validating tag order and rejecting an explicitly encoded Normal default. Absence means Normal.

Trait Implementations

impl Clone for PatchPurpose

fn clone(&self) -> PatchPurpose

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PatchPurpose

impl Debug for PatchPurpose

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

Formats the value using the given formatter.

impl Eq for PatchPurpose

impl Hash for PatchPurpose

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 Ord for PatchPurpose

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for PatchPurpose

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for PatchPurpose

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for PatchPurpose