#![allow(
dead_code,
reason = "the scoped native view is intentionally crate-private until ZE-50 consumes it"
)]
use super::{
payload::PayloadRef,
records::{
NodeRecordState, RecordCatalog, RecordShape, RecordView, verify_node_state, verify_record,
},
stream::PayloadSlice,
tree::{
TreeKind,
directory::{BlockSource, GraphRoots, TreeError, TreeResources, lookup_entry},
},
};
use crate::epoch::EmbeddingTower;
use crate::lifecycle::native_graph::NativeReadLease;
use crate::property_graph::{NodeId, RelId};
#[cfg(feature = "graph-cypher")]
mod catalog;
#[cfg(feature = "graph-cypher")]
mod cursor;
#[cfg(feature = "graph-cypher")]
mod expression;
#[cfg(feature = "graph-cypher")]
mod mapping;
#[cfg(feature = "graph-cypher")]
mod preparation_source;
#[cfg(feature = "graph-cypher")]
mod prepared;
#[cfg(feature = "graph-cypher")]
mod retrieval;
#[cfg(feature = "graph-cypher")]
mod search;
#[cfg(feature = "graph-cypher")]
mod source;
#[cfg(feature = "graph-cypher")]
pub(crate) use catalog::NativeCatalog;
#[cfg(feature = "graph-cypher")]
pub(crate) use cursor::{
CursorState, DirectionSelection, ExpandCursor, LabelSelection, NodeCursor, RelCursor,
RelationshipTypeSelection,
};
#[cfg(feature = "graph-cypher")]
pub(crate) use mapping::NativeReadonlyMapping;
#[cfg(feature = "graph-cypher")]
pub(crate) use preparation_source::{
NativeArtifactWindow, NativePreparationCatalog, NativePreparationSource,
};
#[cfg(feature = "graph-cypher")]
pub(crate) use prepared::{GraphPreparation, PreparedGraphArtifacts, PreparedGraphFailure};
#[cfg(feature = "graph-cypher")]
pub(crate) use source::{NativeQuerySource, NativeReadCapability};
pub(crate) struct NodeView<'a, S: BlockSource> {
record: super::records::RecordView<'a, S>,
}
pub(crate) struct RelView<'a, S: BlockSource> {
row: super::adjacency::RelationshipRow,
record: RecordView<'a, S>,
}
impl<'a, S: BlockSource> RelView<'a, S> {
pub(crate) const fn row(&self) -> super::adjacency::RelationshipRow {
self.row
}
pub(crate) const fn record(&self) -> &RecordView<'a, S> {
&self.record
}
}
impl<S: BlockSource> std::fmt::Debug for RelView<'_, S> {
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.row.fmt(formatter)
}
}
impl<S: BlockSource> PartialEq<super::adjacency::RelationshipRow> for RelView<'_, S> {
fn eq(&self, other: &super::adjacency::RelationshipRow) -> bool {
self.row == *other
}
}
impl<'a, S: BlockSource> NodeView<'a, S> {
pub(crate) const fn record(&self) -> &super::records::RecordView<'a, S> {
&self.record
}
}
pub(crate) struct TextPayloadReader<'a, S: BlockSource> {
payload: PayloadSlice<'a, S>,
}
impl<'a, S: BlockSource> TextPayloadReader<'a, S> {
pub(crate) const fn len(&self) -> u64 {
self.payload.len()
}
pub(crate) fn read_at(
&self,
offset: u64,
output: &mut [u8],
resources: &mut TreeResources<'_>,
) -> Result<usize, TreeError> {
if output.len() > super::payload::CHUNK_BYTES {
return Err(TreeError::Invalid("text payload read exceeds 64 KiB"));
}
self.payload.read_at(offset, output, resources)
}
}
pub(crate) struct GraphReadView<'s, 'lease, 'm, 'g> {
lease: &'lease NativeReadLease,
source: &'s NativeQuerySource<'lease, 'm, 'g>,
catalog: &'s NativeCatalog<'s, 'm, 'g>,
}
impl<'s, 'lease, 'm, 'g> GraphReadView<'s, 'lease, 'm, 'g> {
pub(crate) fn new(
source: &'s NativeQuerySource<'lease, 'm, 'g>,
catalog: &'s NativeCatalog<'s, 'm, 'g>,
) -> Result<Self, TreeError> {
if !catalog.owns(source) {
return Err(TreeError::Invalid("foreign native catalog capability"));
}
Ok(Self {
lease: source.lease(),
source,
catalog,
})
}
pub(crate) fn sequence(&self) -> u64 {
self.lease.bundle().sequence()
}
pub(crate) fn store_instance_id(&self) -> crate::property_graph::StoreInstanceId {
self.lease.bundle().base().store
}
pub(crate) fn generation(&self) -> crate::property_graph::GraphGeneration {
self.lease.bundle().base().generation
}
#[cfg(any(test, feature = "test-seams"))]
pub(crate) fn wait_until_cancelled_for_test(&self) -> Result<(), TreeError> {
self.lease
.wait_until_cancelled_for_test()
.map_err(|_| TreeError::Invalid("native read cancellation observer"))
}
pub(crate) fn lookup_node(
&self,
node: NodeId,
resources: &mut TreeResources<'_>,
) -> Result<Option<NodeView<'s, NativeQuerySource<'lease, 'm, 'g>>>, TreeError> {
self.lease
.check_active()
.map_err(crate::property_graph::query::runtime::RuntimeError::Value)
.map_err(TreeError::Runtime)?;
match lookup_node_state(
self.source,
self.lease.bundle().roots(),
node,
self.catalog,
self.lease.bundle().document(),
resources,
)? {
Some(NodeRecordState::Live(record)) => Ok(Some(NodeView { record })),
Some(NodeRecordState::Tombstone(_)) | None => Ok(None),
}
}
pub(crate) fn lookup_relationship(
&self,
relationship: RelId,
resources: &mut TreeResources<'_>,
) -> Result<Option<RelView<'s, NativeQuerySource<'lease, 'm, 'g>>>, TreeError> {
self.lease
.check_active()
.map_err(crate::property_graph::query::runtime::RuntimeError::Value)
.map_err(TreeError::Runtime)?;
let roots = self.lease.bundle().roots();
let Some(entry) = lookup_entry(
self.source,
roots.directory(TreeKind::Relationships)?,
&relationship.get().to_le_bytes(),
resources,
)?
else {
return Ok(None);
};
let payload = PayloadRef::decode(entry.value())?;
let record = verify_record(
PayloadSlice::new(
self.source,
roots.store(),
entry.creation_generation(),
payload,
),
crate::property_graph::EntityId::Relationship(relationship),
self.catalog,
self.lease.bundle().document(),
resources,
)?;
let RecordShape::Relationship {
id,
source,
target,
relationship_type,
} = record.shape()
else {
return Err(TreeError::Invalid("relationship directory role"));
};
let reader = super::adjacency::NativeGraphReader::new(
self.source,
roots,
self.lease.bundle().sequence(),
self.catalog,
self.lease.bundle().document(),
);
if !reader.endpoint_live(source, resources)? || !reader.endpoint_live(target, resources)? {
return Ok(None);
}
Ok(Some(RelView {
row: super::adjacency::RelationshipRow {
rel: id,
source,
target,
relationship_type,
},
record,
}))
}
pub(crate) fn node_property(
&self,
node: &NodeView<'s, NativeQuerySource<'lease, 'm, 'g>>,
key: crate::property_graph::catalog::PropertyKeyId,
resources: &mut TreeResources<'_>,
) -> Result<Option<PayloadSlice<'s, NativeQuerySource<'lease, 'm, 'g>>>, TreeError> {
self.lease
.check_active()
.map_err(crate::property_graph::query::runtime::RuntimeError::Value)
.map_err(TreeError::Runtime)?;
node.record.property(key, resources)
}
pub(crate) fn relationship_property(
&self,
relationship: &RelView<'s, NativeQuerySource<'lease, 'm, 'g>>,
key: crate::property_graph::catalog::PropertyKeyId,
resources: &mut TreeResources<'_>,
) -> Result<Option<PayloadSlice<'s, NativeQuerySource<'lease, 'm, 'g>>>, TreeError> {
self.lease
.check_active()
.map_err(crate::property_graph::query::runtime::RuntimeError::Value)
.map_err(TreeError::Runtime)?;
relationship.record.property(key, resources)
}
pub(crate) fn stored_text(
&self,
node: NodeId,
resources: &mut TreeResources<'_>,
) -> Result<Option<TextPayloadReader<'s, NativeQuerySource<'lease, 'm, 'g>>>, TreeError> {
let record = self
.lookup_node(node, resources)?
.ok_or(TreeError::Invalid(
"stored text entity is absent or deleted",
))?;
Ok(record
.record
.canonical()
.stored_text()
.map(|payload| TextPayloadReader { payload }))
}
pub(crate) fn vector_payload(
&self,
node: NodeId,
resources: &mut TreeResources<'_>,
) -> Result<
Option<super::records::StoredVector<'s, NativeQuerySource<'lease, 'm, 'g>>>,
TreeError,
> {
let record = self
.lookup_node(node, resources)?
.ok_or(TreeError::Invalid("vector entity is absent or deleted"))?;
Ok(record.record.canonical().stored_vector())
}
pub(crate) fn relationship_cursor(
&'s self,
selection: RelationshipTypeSelection<'_>,
runtime: &mut crate::property_graph::query::runtime::RuntimeContext<'lease, 'm, 'g>,
) -> Result<RelCursor<'s, 'm, 'g>, TreeError> {
cursor::RelCursor::new(self.lease, selection, runtime)
}
pub(crate) fn node_cursor(
&'s self,
selection: LabelSelection<'_>,
runtime: &mut crate::property_graph::query::runtime::RuntimeContext<'lease, 'm, 'g>,
) -> Result<NodeCursor<'s, 'm, 'g>, TreeError> {
cursor::NodeCursor::new(self.lease, selection, runtime)
}
pub(crate) fn scan_nodes(
&self,
cursor: &mut NodeCursor<'s, 'm, 'g>,
output: &mut [NodeId],
runtime: &mut crate::property_graph::query::runtime::RuntimeContext<'lease, 'm, 'g>,
) -> Result<(usize, CursorState), TreeError> {
cursor.scan(self.lease, self.source, self.catalog, output, runtime)
}
pub(crate) fn scan_relationships(
&self,
cursor: &mut RelCursor<'s, 'm, 'g>,
output: &mut [super::adjacency::RelationshipRow],
runtime: &mut crate::property_graph::query::runtime::RuntimeContext<'lease, 'm, 'g>,
) -> Result<(usize, CursorState), TreeError> {
cursor.scan(self.lease, self.source, self.catalog, output, runtime)
}
pub(crate) fn expansion_cursor(
&'s self,
node: NodeId,
direction: DirectionSelection,
selection: RelationshipTypeSelection<'_>,
runtime: &mut crate::property_graph::query::runtime::RuntimeContext<'lease, 'm, 'g>,
) -> Result<ExpandCursor<'s, 'm, 'g>, TreeError> {
cursor::ExpandCursor::new(self.lease, node, direction, selection, runtime)
}
pub(crate) fn expand(
&self,
cursor: &mut ExpandCursor<'s, 'm, 'g>,
output: &mut [super::adjacency::RelationshipRow],
runtime: &mut crate::property_graph::query::runtime::RuntimeContext<'lease, 'm, 'g>,
) -> Result<(usize, CursorState), TreeError> {
cursor.scan(self.lease, self.source, self.catalog, output, runtime)
}
}
#[allow(
clippy::too_many_arguments,
reason = "the private leaf keeps source, catalog, document, owner, and bounded output explicit"
)]
pub(super) fn scan_live_nodes_after<'a, 'lease, 'm, 'g>(
source: &'a NativeQuerySource<'lease, 'm, 'g>,
roots: GraphRoots,
after: Option<NodeId>,
labels: &[crate::property_graph::catalog::LabelId],
catalog: &impl RecordCatalog<NativeQuerySource<'lease, 'm, 'g>>,
document: Option<&EmbeddingTower>,
output: &mut crate::property_graph::query::resources::QueryArena<'m, 'g, NodeId>,
r: &mut TreeResources<'_>,
) -> Result<usize, TreeError> {
use super::tree::{Key, directory::DirectoryCursor};
let node_lower = after.map(|node| node.get().to_le_bytes());
let mut label_lower = [0_u8; 24];
let (root, lower) = if let Some(label) = labels.first() {
label_lower[..8].copy_from_slice(&label.get().to_le_bytes());
label_lower[8..].copy_from_slice(&after.map_or(1, NodeId::get).to_le_bytes());
(
roots.directory(TreeKind::Labels)?,
Some(label_lower.as_slice()),
)
} else {
(
roots.directory(TreeKind::Nodes)?,
node_lower.as_ref().map(<[u8; 16]>::as_slice),
)
};
let mut cursor = DirectoryCursor::seek(source, root, lower, r)?;
while let Some(entry) = cursor.next_entry(r)? {
let Key::Inline(key) = entry.key() else {
return Err(TreeError::Invalid("overflow node identity"));
};
let node_key = if let Some(label) = labels.first() {
if !entry.value().is_empty() {
return Err(TreeError::Invalid("label membership value is not empty"));
}
let actual_label = u64::from_le_bytes(
key.get(..8)
.and_then(|bytes| bytes.try_into().ok())
.ok_or(TreeError::Invalid("label membership key width"))?,
);
if actual_label != label.get() {
break;
}
key.get(8..)
.ok_or(TreeError::Invalid("label membership node width"))?
} else {
key
};
let node = NodeId::new(u128::from_le_bytes(
node_key
.try_into()
.map_err(|_| TreeError::Invalid("node identity width"))?,
))
.map_err(|_| TreeError::Invalid("zero node identity"))?;
if after == Some(node) {
continue;
}
let Some(NodeRecordState::Live(record)) =
lookup_node_state(source, roots, node, catalog, document, r)?
else {
continue;
};
let super::records::RecordShape::Node { labels: count, .. } = record.shape() else {
return Err(TreeError::Invalid("node directory role"));
};
let mut matched = true;
for wanted in labels {
let mut found = false;
for index in 0..count {
if record.label(index, r)? == *wanted {
found = true;
break;
}
}
if !found {
matched = false;
break;
}
}
if matched {
output.push(node).map_err(|_| TreeError::Memory)?;
if output.len() == output.capacity() {
break;
}
}
}
Ok(output.len())
}
pub(super) fn lookup_node_state<'a, S: BlockSource>(
source: &'a S,
roots: GraphRoots,
node: NodeId,
catalog: &impl RecordCatalog<S>,
document: Option<&EmbeddingTower>,
r: &mut TreeResources<'_>,
) -> Result<Option<NodeRecordState<'a, S>>, TreeError> {
let root = roots.directory(TreeKind::Nodes)?;
let Some(entry) = lookup_entry(source, root, &node.get().to_le_bytes(), r)? else {
return Ok(None);
};
let payload = PayloadRef::decode(entry.value())?;
verify_node_state(
PayloadSlice::new(source, roots.store(), entry.creation_generation(), payload),
node,
catalog,
document,
r,
)
.map(Some)
}
#[cfg(test)]
mod tests {
#![allow(
clippy::expect_used,
clippy::panic,
clippy::unwrap_used,
clippy::indexing_slicing,
reason = "test assertions and fixed fixture indices"
)]
use super::*;
use crate::epoch::{ComputeUnits, EmbeddingRuntime, Normalization};
use crate::lifecycle::{CancelToken, OpenOptions, QueryControl, SnapshotLease, Store};
use crate::property_graph::catalog::{Symbol, SymbolKind};
use crate::property_graph::query::resources::QueryMemory;
use crate::property_graph::query::runtime::{RetainedView, RuntimeContext, RuntimeLimits};
use crate::property_graph::query::{QueryError, QueryView};
use crate::property_graph::resources::GraphResources;
use crate::property_graph::staging::{WriteLimits, WriteMemory};
use crate::property_graph::storage::artifact::{
self, ArtifactId, ArtifactIdentity, Block, BlockKind, ContainerKind, FramedBlock,
PhysicalRef,
};
use crate::property_graph::storage::memory::StorageMemory;
use crate::property_graph::storage::payload::prepare_payload;
use crate::property_graph::storage::records::{
RecordInput, RecordShape, prepare_node_tombstone, prepare_provenance, prepare_record,
};
use crate::property_graph::storage::tree::directory::{
BlockSink, DirectoryRoot, TreeScratch, insert,
};
use crate::property_graph::{
CanonicalContents, CanonicalEmbedding, EntityId, ExpectedGraphState, GraphDeleteMode,
GraphGeneration, GraphOperation, GraphRevision, OperationFields, OperationProvenance,
StoreInstanceId,
};
use std::collections::BTreeMap;
struct Objects {
store: StoreInstanceId,
next: u128,
objects: BTreeMap<u128, Vec<u8>>,
}
impl Objects {
fn new() -> Self {
Self {
store: StoreInstanceId::new(1u128 << 100).expect("source store identity"),
next: 1,
objects: BTreeMap::new(),
}
}
}
impl BlockSource for Objects {
fn resolve<'a>(
&'a self,
reference: PhysicalRef,
resources: &mut TreeResources<'_>,
) -> Result<FramedBlock<'a>, TreeError> {
resources.step(1)?;
let bytes = self
.objects
.get(&reference.artifact.get())
.ok_or(TreeError::Missing)?;
let frame = artifact::decode(
ContainerKind::Object,
Some((self.store, reference.artifact)),
bytes,
)?;
Ok(frame.framed_block(reference)?)
}
}
impl BlockSink for Objects {
fn append(
&mut self,
kind: BlockKind,
generation: GraphGeneration,
bytes: &[u8],
resources: &mut TreeResources<'_>,
) -> Result<PhysicalRef, TreeError> {
resources.step(1)?;
let artifact = ArtifactId::new(self.next)?;
let identity = ArtifactIdentity {
store: self.store,
artifact,
generation,
creation_serial: self.next as u64,
};
let blocks = [Block {
kind,
payload: bytes,
}];
let mut output = vec![0; artifact::encoded_len(ContainerKind::Object, &blocks)?];
artifact::encode_into(ContainerKind::Object, identity, &blocks, &mut output)?;
let reference =
artifact::decode(ContainerKind::Object, Some((self.store, artifact)), &output)?
.reference(0)?;
if self.objects.insert(self.next, output).is_some() {
return Err(TreeError::Invalid("duplicate fixture artifact"));
}
self.next += 1;
Ok(reference)
}
}
struct EmptyCatalog;
impl RecordCatalog<Objects> for EmptyCatalog {
fn resolve(
&self,
_: SymbolKind,
_: PayloadSlice<'_, Objects>,
_: &mut TreeResources<'_>,
) -> Result<Symbol, TreeError> {
Err(TreeError::Invalid("unexpected fixture catalog lookup"))
}
}
struct View {
token: QueryView,
lease: SnapshotLease,
}
impl RetainedView for View {
fn query_view(&self) -> &QueryView {
&self.token
}
fn check_active(&self) -> Result<(), QueryError> {
self.lease
.check_active()
.map_err(|_| QueryError::ReadCancelled)
}
}
fn tower() -> EmbeddingTower {
EmbeddingTower {
model_id: "doc".into(),
model_version: "1".into(),
weights_digest: vec![0x42],
dims: 2,
normalization: Normalization::None,
prompt_prefix: "".into(),
max_tokens: 3,
runtime: EmbeddingRuntime::CpuReference,
compute_units: ComputeUnits::Cpu,
os_build: None,
}
}
fn retain_source_lifetime<'a, S: BlockSource>(
_: &'a S,
state: Option<NodeRecordState<'a, S>>,
) -> Option<NodeRecordState<'a, S>> {
state
}
#[test]
fn node_payload_leaf_preserves_full_identity_optional_payloads_and_state() {
let directory = tempfile::tempdir().expect("store fixture");
let store = Store::open(
directory.path(),
OpenOptions::new().with_max_resident_bytes(256 * 1024 * 1024),
)
.expect("store");
let shared = GraphResources::from_store(&store).expect("shared resources");
let prepare_control = QueryControl::Cancel(CancelToken::new());
let writer = WriteMemory::new(&shared, WriteLimits::default()).expect("writer memory");
let memory = StorageMemory::new(&writer, &prepare_control, 32 * 1024 * 1024)
.expect("storage memory");
let document = tower();
let full = NodeId::new(u128::MAX - 17).expect("full-width node identity");
let absent = NodeId::new((1u128 << 119) + 23).expect("absent-payload node identity");
let tombstoned = NodeId::new((1u128 << 118) + 29).expect("tombstoned node identity");
let missing = NodeId::new((1u128 << 117) + 31).expect("missing node identity");
let generation = GraphGeneration::new(7);
let mut objects = Objects::new();
let source_store = objects.store;
let roots = {
let mut resources =
TreeResources::for_prepare(&memory, 10_000_000).expect("prepare resources");
let mut scratch = TreeScratch::for_prepare(&memory).expect("tree scratch");
let embedded =
CanonicalEmbedding::new(&document, &[1.25, -2.5]).expect("canonical embedding");
let live = CanonicalContents::node(&mut [], &mut [], Some(""), Some(embedded))
.expect("live canonical contents");
let mut live_bytes = Vec::new();
live.write_to(&mut live_bytes, &mut || Ok(()))
.expect("encode live canonical contents");
let live_canonical = prepare_payload(
&mut objects,
source_store,
generation,
BlockKind::CanonicalImage,
&live_bytes,
&mut resources,
)
.expect("prepare live canonical payload");
let live_provenance = prepare_provenance(
&mut objects,
source_store,
generation,
OperationProvenance::from_fields(
Some(1),
OperationFields {
operation: GraphOperation::CypherEdit,
key: None,
requested_revision: GraphRevision::new(1).expect("live revision"),
installed_revision: GraphRevision::new(1).expect("live revision"),
expected: ExpectedGraphState::Absent,
incarnation: EntityId::Node(full),
delete_mode: None,
original_generation: GraphGeneration::new(1),
},
)
.expect("live provenance"),
&memory,
&mut resources,
)
.expect("prepare live provenance");
let live_record = prepare_record(
&mut objects,
RecordInput {
store: source_store,
generation,
entity: EntityId::Node(full),
canonical: live_canonical,
provenance: live_provenance,
},
&EmptyCatalog,
Some(&document),
&memory,
&mut resources,
)
.expect("prepare live record");
let absent_contents = CanonicalContents::node(&mut [], &mut [], None, None)
.expect("absent-payload canonical contents");
let mut absent_bytes = Vec::new();
absent_contents
.write_to(&mut absent_bytes, &mut || Ok(()))
.expect("encode absent-payload canonical contents");
let absent_canonical = prepare_payload(
&mut objects,
source_store,
generation,
BlockKind::CanonicalImage,
&absent_bytes,
&mut resources,
)
.expect("prepare absent-payload canonical payload");
let absent_provenance = prepare_provenance(
&mut objects,
source_store,
generation,
OperationProvenance::from_fields(
Some(1),
OperationFields {
operation: GraphOperation::CypherEdit,
key: None,
requested_revision: GraphRevision::new(2).expect("absent revision"),
installed_revision: GraphRevision::new(2).expect("absent revision"),
expected: ExpectedGraphState::Absent,
incarnation: EntityId::Node(absent),
delete_mode: None,
original_generation: GraphGeneration::new(2),
},
)
.expect("absent provenance"),
&memory,
&mut resources,
)
.expect("prepare absent provenance");
let absent_record = prepare_record(
&mut objects,
RecordInput {
store: source_store,
generation,
entity: EntityId::Node(absent),
canonical: absent_canonical,
provenance: absent_provenance,
},
&EmptyCatalog,
Some(&document),
&memory,
&mut resources,
)
.expect("prepare absent-payload record");
let tombstone_provenance = prepare_provenance(
&mut objects,
source_store,
generation,
OperationProvenance::from_fields(
Some(1),
OperationFields {
operation: GraphOperation::CypherEdit,
key: None,
requested_revision: GraphRevision::new(3).expect("tombstone revision"),
installed_revision: GraphRevision::new(3).expect("tombstone revision"),
expected: ExpectedGraphState::Entity(EntityId::Node(tombstoned)),
incarnation: EntityId::Node(tombstoned),
delete_mode: Some(GraphDeleteMode::Detach),
original_generation: GraphGeneration::new(3),
},
)
.expect("tombstone provenance"),
&memory,
&mut resources,
)
.expect("prepare tombstone provenance");
let tombstone_record = prepare_node_tombstone(
&mut objects,
source_store,
generation,
tombstoned,
tombstone_provenance,
&mut resources,
)
.expect("prepare tombstone record");
let mut root =
DirectoryRoot::empty(source_store, TreeKind::Nodes, GraphGeneration::new(0));
for (node, record) in [
(full, live_record),
(absent, absent_record),
(tombstoned, tombstone_record),
] {
let mut value = [0; 48];
record
.encode_into(&mut value)
.expect("encode record reference");
root = insert(
&mut objects,
root,
&node.get().to_le_bytes(),
&value,
generation,
&mut scratch,
&mut resources,
)
.expect("insert node record");
}
let mut references = [None; 8];
references[TreeKind::Nodes as usize - 1] = root.reference();
GraphRoots::from_references(source_store, generation, references).expect("graph roots")
};
drop(memory);
let query_memory = QueryMemory::new(&shared, 2 * 1024 * 1024).expect("query memory");
let retained = View {
token: QueryView::new(source_store, generation),
lease: store.snapshot().expect("retained lease"),
};
let query_control = QueryControl::Cancel(CancelToken::new());
let mut context = RuntimeContext::new(
&retained,
&query_control,
&query_memory,
RuntimeLimits::default(),
)
.expect("query runtime");
let (full_state, absent_state, tombstone_state) = {
let mut resources = TreeResources::for_query(&mut context).expect("query resources");
let full_state = retain_source_lifetime(
&objects,
lookup_node_state(
&objects,
roots,
full,
&EmptyCatalog,
Some(&document),
&mut resources,
)
.expect("full node lookup"),
)
.expect("full node must be present");
let absent_state = retain_source_lifetime(
&objects,
lookup_node_state(
&objects,
roots,
absent,
&EmptyCatalog,
Some(&document),
&mut resources,
)
.expect("absent-payload node lookup"),
)
.expect("absent-payload node must be present");
let tombstone_state = retain_source_lifetime(
&objects,
lookup_node_state(
&objects,
roots,
tombstoned,
&EmptyCatalog,
Some(&document),
&mut resources,
)
.expect("tombstone lookup"),
)
.expect("tombstone must be present");
assert!(
lookup_node_state(
&objects,
roots,
missing,
&EmptyCatalog,
Some(&document),
&mut resources,
)
.expect("missing node lookup")
.is_none(),
"missing and tombstoned nodes must remain distinct"
);
(full_state, absent_state, tombstone_state)
};
let (text, vector) = match full_state {
NodeRecordState::Live(record) => {
assert_eq!(
record.shape(),
RecordShape::Node {
id: full,
labels: 0
}
);
let text = record
.canonical()
.stored_text()
.expect("present-empty text");
assert!(text.is_empty());
let vector = record.canonical().stored_vector().expect("present vector");
assert_eq!(vector.dimensions(), 2);
(text, vector)
}
NodeRecordState::Tombstone(_) => panic!("live full-width node became tombstone"),
};
match absent_state {
NodeRecordState::Live(record) => {
assert!(record.canonical().stored_text().is_none());
assert!(record.canonical().stored_vector().is_none());
}
NodeRecordState::Tombstone(_) => panic!("live absent-payload node became tombstone"),
}
match tombstone_state {
NodeRecordState::Tombstone(record) => {
assert_eq!(record.node(), tombstoned);
assert_eq!(record.revision(), GraphRevision::new(3).expect("revision"));
}
NodeRecordState::Live(_) => panic!("tombstone became live node"),
}
{
let mut resources =
TreeResources::for_query(&mut context).expect("reborrow query resources");
let mut no_bytes = [];
assert_eq!(
text.read_at(0, &mut no_bytes, &mut resources)
.expect("read present-empty text"),
0
);
assert_eq!(
vector
.coordinate(0, &mut resources)
.expect("first borrowed coordinate"),
1.25
);
assert_eq!(
vector
.coordinate(1, &mut resources)
.expect("second borrowed coordinate"),
-2.5
);
}
drop(context);
drop(retained);
store.close().expect("close store");
}
}