Struct Rev 

pub struct Rev(u64);

Tuple Fields

0: u64

Implementations

impl Rev

pub const ZERO: Rev

The empty document: no commit accepted yet. Real revs start at 1, so ZERO sorts below every accepted write.

pub(crate) const fn new(n: u64) -> Self

Test fixtures only: production revs enter a process exclusively via Document::try_apply (next).

pub const fn get(self) -> u64

pub const fn next(self) -> Self

pub const fn forward(self, n: u64) -> Self

n positions on from this one — the same arithmetic Self::next is, for a caller counting a run of them out.

pub const fn prev(self) -> Option<Self>

The position before this one, or None at Self::ZERO. Inert like Self::next: a rev outside the fold names a position, and the log’s positions are contiguous by construction.

Trait Implementations

impl Clone for Rev

fn clone(&self) -> Rev

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rev

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

Formats the value using the given formatter.

impl Default for Rev

fn default() -> Rev

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Rev

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Rev

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 Rev

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

fn eq(&self, other: &Rev) -> 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 Rev

fn partial_cmp(&self, other: &Rev) -> 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 Rev

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Rev

impl Eq for Rev

impl StructuralPartialEq for Rev