Enum OperationFormat 

pub enum OperationFormat {
    V1,
}

Version tag for the operation canonical form (#244).

The pre-image bytes hashed to derive an OpId are not stable across schema evolutions: adding a field to OperationKind or changing its serde representation rotates every existing OpId. This enum tags the encoding used so a long-lived store can detect mismatches and migrate explicitly via crate::migrate.

Today only Self::V1 is in production. Adding a future variant requires:

1. A new arm in Operation::canonical_bytes_in.
2. An update to the canonical-form spec in [crate::canonical].
3. A CHANGELOG.md entry under ### Internal calling out the OpId rotation.
4. A migration recipe via crate::migrate::plan_migration — the mechanism is encoder-agnostic, but each new variant needs its own canonical_bytes_in arm.

Variants

V1

Implementations

impl OperationFormat

pub const CURRENT: OperationFormat = OperationFormat::V1

The format every newly-emitted op uses today.

pub fn is_implicit(&self) -> bool

true for the implicit format (V1). Used by the skip_serializing_if hook on OperationRecord::format_version so existing V1 stores keep byte-identical on-disk JSON — adding the version field doesn’t itself rotate any OpId.

Trait Implementations

impl Clone for OperationFormat

fn clone(&self) -> OperationFormat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OperationFormat

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

Formats the value using the given formatter.

impl Default for OperationFormat

fn default() -> OperationFormat

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OperationFormat

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for OperationFormat

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 OperationFormat

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

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

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

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 OperationFormat

impl Eq for OperationFormat

impl StructuralPartialEq for OperationFormat