Struct ChangeId 

pub struct ChangeId(/* private fields */);

A rewrite-stable logical change identifier (16 bytes / 128 bits).

Implementations

impl ChangeId

pub fn generate() -> ChangeId

Generate a new random ChangeId.

pub fn from_bytes(bytes: [u8; 16]) -> ChangeId

Create from raw bytes.

pub fn try_from_slice(bytes: &[u8]) -> Result<ChangeId, ChangeIdParseError>

Decode from a 16-byte slice. Used at the proto/wire boundary where ChangeIds arrive as bytes fields (Vec<u8>).

pub fn as_bytes(&self) -> &[u8; 16]

Get the raw bytes.

pub fn to_string_full(&self) -> String

Convert to display string (hc-XXXXXXXXXX…).

pub fn short(&self) -> String

Short form for display (first 12 chars after prefix).

pub fn parse(s: &str) -> Result<ChangeId, ChangeIdParseError>

Parse from string (with or without hc- prefix).

pub fn is_zero(&self) -> bool

Check if this ChangeId is all zeros (uninitialized).

Trait Implementations

impl Clone for ChangeId

fn clone(&self) -> ChangeId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ChangeId

impl Debug for ChangeId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ChangeId

fn deserialize<__D>( __deserializer: __D, ) -> Result<ChangeId, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ChangeId

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

Formats the value using the given formatter.

impl Eq for ChangeId

impl Hash for ChangeId

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

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 ChangeId

fn cmp(&self, other: &ChangeId) -> 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 ChangeId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ChangeId

fn partial_cmp(&self, other: &ChangeId) -> 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 Serialize for ChangeId

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ChangeId