Enum WalDelta 

pub enum WalDelta {
    CreateInode {
        delta_index: u32,
        inode_id: InodeId,
        inode_kind: InodeKind,
    },
    BindDirentry {
        delta_index: u32,
        parent_inode_id: InodeId,
        name_key: NameKey,
        display_name: DisplayName,
        child_inode_id: InodeId,
    },
    UnbindDirentry {
        delta_index: u32,
        parent_inode_id: InodeId,
        name_key: NameKey,
        display_name: DisplayName,
        child_inode_id: InodeId,
        bind_seq: ChangeSeq,
        bind_delta_index: u32,
    },
    AppendFileRevision {
        delta_index: u32,
        inode_id: InodeId,
        revision_no: RevisionNo,
        content_ref: ContentRef,
    },
    TombstoneSubtree {
        delta_index: u32,
        root_inode_id: InodeId,
        parent_inode_id: Option<InodeId>,
        name_key: Option<NameKey>,
        display_name: Option<DisplayName>,
    },
    RevokeSubtreeTombstone {
        delta_index: u32,
        root_inode_id: InodeId,
        target_seq: ChangeSeq,
        target_delta_index: u32,
    },
}

Records one replayable metadata mutation materialized from a semantic commit operation.

See standard mutation operations.

Variants

CreateInode

Introduces an inode whose identity and kind remain fixed for its lifetime.

Fields

delta_index: u32

Stable position of this delta within its commit, used in row ordering and identity.

inode_id: InodeId

Newly allocated durable inode identity.

inode_kind: InodeKind

File-or-directory classification established at creation.

BindDirentry

Makes a child reachable under one canonical name in a directory.

Fields

delta_index: u32

Stable position of this delta within its commit, used to identify the binding.

parent_inode_id: InodeId

Directory receiving the new name binding.

name_key: NameKey

Policy-derived lookup key on which directory uniqueness is enforced.

display_name: DisplayName

User-facing spelling preserved independently of name_key.

child_inode_id: InodeId

Inode made reachable by the binding.

UnbindDirentry

Removes one exact historical directory binding without affecting a later rebind.

Fields

delta_index: u32

Stable position of this unbind within its commit.

parent_inode_id: InodeId

Directory from which the binding is removed.

name_key: NameKey

Canonical lookup key of the binding being removed.

display_name: DisplayName

User-facing spelling the removed binding carried, so feed consumers see the name a person typed without a second lookup.

child_inode_id: InodeId

Child identity expected on the targeted binding.

bind_seq: ChangeSeq

Commit sequence that created the exact binding being removed.

bind_delta_index: u32

Delta position that disambiguates the binding within bind_seq.

AppendFileRevision

Publishes the next immutable content revision of a file inode.

Fields

delta_index: u32

Stable position of this revision delta within its commit.

inode_id: InodeId

File inode receiving the revision.

revision_no: RevisionNo

Monotonic per-file revision number validated against visible history.

content_ref: ContentRef

Immutable content that must already be durable before publication.

TombstoneSubtree

Hides a rooted subtree from snapshots at this delta’s sequence or later.

Fields

delta_index: u32

Stable position that identifies this tombstone within its commit.

root_inode_id: InodeId

Inode at the root of the newly hidden subtree.

parent_inode_id: Option<InodeId>

Directory that held the deleted binding, when the tombstone came from a path delete. Carried so the deleted name survives on the immortal tombstone row after unbind rows age out.

name_key: Option<NameKey>

Canonical key of the deleted binding, when known.

display_name: Option<DisplayName>

User-facing spelling of the deleted binding, when known.

RevokeSubtreeTombstone

Revokes exactly one subtree tombstone — the one recorded at (target_seq, target_delta_index) — making the subtree eligible for visibility again once re-bound. An immutable compensating event, not an in-place row deletion: a later TombstoneSubtree for the same root supersedes the revoke.

Fields

delta_index: u32

Stable position of this compensating delta within its commit.

root_inode_id: InodeId

Root inode whose selected tombstone is being revoked.

target_seq: ChangeSeq

Commit sequence of the exact tombstone this delta compensates.

target_delta_index: u32

Delta position of the exact tombstone within target_seq.

Trait Implementations

impl Clone for WalDelta

fn clone(&self) -> WalDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WalDelta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WalDelta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for WalDelta

impl PartialEq for WalDelta

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for WalDelta

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for WalDelta