Crate sim_expr_tree_core

Expand description

Backend-neutral expression-tree namespace records.

Structs§

CellCreate: Request record for creating an immutable durable cell.
CellId: Stable cell identity.
CellRecord: Immutable durable calculation cell record.
CodecPolicyPatch: Patch applied at the tree, directory, or cell policy level.
DirId: Stable dir identity.
DirRecord: Durable directory record with immutable identity and movable parent/name.
EffectiveCodecPolicy: Fully resolved codec and face policy at one namespace node.
ExprTreeStores: Typed source/control/derived stores plus explicit Table/Dir mount descriptors.
FaceBudget: Independent resource ceilings for one encoded source or result face.
MountDescriptor: Explicit mount descriptor stored outside authored source cells.
MountEpoch: Monotonic observation of a mounted backend generation.
Namespace: Durable finite namespace records for one expression tree.
NamespaceName: A validated finite namespace child name.
PendingCommit: Recoverable source/control commit staged across separate backends.
RevisionTick: Monotonic namespace revision paired with the logical tick that produced it.
SourceEntry: Authored source-store entry. Operational and derived values have no variants here.
SourceRecord: Source provenance attached to a namespace node.
Stamp: Stamp attached to durable namespace records.
TreeId: Stable tree identity.
WallTimeMs: Optional wall-clock observation in Unix milliseconds.
WriterLane: An acquired serialized writer lane.

BackendKind: Backend family named by a mounted expression-tree store descriptor.
ControlEntry: Control-store entry for operational state.
DerivedEntry: Derived-store entry for rebuildable calculation artifacts.
GeneratedNameKind: Generated-name counter families are scoped per parent directory.
MountResource: Mounted target shape. Table mounts are leaves; Dir mounts can be traversed.
NamespaceEntry: A named child entry in the finite namespace.
NamespaceError: Typed failures for backend-neutral expression-tree namespace records.
NodeKind: Durable expression-tree node families.
StoreError: Store composition failures.

HARD_MAX_FACE_BYTES: Absolute ceiling for bytes admitted to one encoded source or result face.
HARD_MAX_FACE_DEPTH: Absolute ceiling for expression nesting inspected for one face.
HARD_MAX_FACE_ITEMS: Absolute ceiling for expression nodes or runtime collection items inspected for one face.

crate_identity: Returns the crate’s public identity.
resolve_namespace_path: Resolve a canonical expression-tree namespace reference.