Struct ObjectId 

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

A 20-byte SHA-1 object identifier.

Implementations

impl ObjectId

pub const fn zero() -> Self

The all-zero object id (Git’s “null” OID).

Used for index placeholders such as intent-to-add entries and for special cases in plumbing output.

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

Construct from a 20-byte slice.

Errors

Returns Error::InvalidObjectId when bytes is not exactly 20 bytes.

pub fn as_bytes(&self) -> &[u8; 20]

Raw 20-byte digest.

pub fn is_zero(&self) -> bool

Check if this is the null (all-zero) object ID.

pub fn to_hex(&self) -> String

Lowercase hex representation (40 characters).

pub fn loose_prefix(&self) -> String

The two-character directory prefix used by the loose object store.

Returns the first two hex chars (e.g. "ab" for "ab3f…").

pub fn from_hex(s: &str) -> Result<Self>

Parse an object ID from a hex string.

Errors

Returns Error::InvalidObjectId if the string is not a valid 40-character hex OID.

pub fn loose_suffix(&self) -> String

The 38-character suffix used as the filename inside the loose prefix dir.

Trait Implementations

impl Clone for ObjectId

fn clone(&self) -> ObjectId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ObjectId

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

Formats the value using the given formatter.

impl Display for ObjectId

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

Formats the value using the given formatter.

impl FromStr for ObjectId

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self>

Parses a string s to return a value of this type.

impl Hash for ObjectId

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 ObjectId

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

fn eq(&self, other: &ObjectId) -> 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 PartialOrd for ObjectId

fn partial_cmp(&self, other: &ObjectId) -> 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 Copy for ObjectId

impl Eq for ObjectId

impl StructuralPartialEq for ObjectId