Module lazy 

Lazy-Loading Graph Module

This module provides lazy-loading capabilities for large code graphs:

• SQLite-backed partition storage
• On-demand partition loading into petgraph
• Memory-based eviction with LRU tracking
• Cross-partition edge indexing

Architecture

LazyGraphManager
├── PetCodeGraph (runtime graph, all loaded partitions)
├── PartitionRegistry (tracks loaded partitions)
├── MemoryBudgetCache (LRU eviction by bytes)
└── CrossRefIndex (cross-partition edges)

Storage:
├── manifest.json (file → partition mapping)
├── partitions/*.db (SQLite partition files)
└── cross_refs.db (cross-partition edges)

Re-exports

pub use cache::CacheMetrics;

pub use cache::MemoryBudgetCache;

pub use cache::PartitionStats as CachePartitionStats;

pub use cache::estimate_memory;

pub use cross_refs::CROSS_REFS_SCHEMA_VERSION;

pub use cross_refs::CrossRef;

pub use cross_refs::CrossRefError;

pub use cross_refs::CrossRefIndex;

pub use cross_refs::CrossRefStore;

pub use manager::LazyGraphError;

pub use manager::LazyGraphManager;

pub use manager::LazyGraphStats;

pub use manager::Manifest;

pub use manager::ManifestEntry;

pub use partition::PartitionConnection;

pub use partition::PartitionError;

pub use partition::PartitionStats;

pub use partitioner::GraphPartitioner;

pub use partitioner::PartitionerError;

pub use partitioner::PartitioningStats;

pub use schema::EDGE_COLUMNS;

pub use schema::NODE_COLUMNS;

pub use schema::PARTITION_SCHEMA_VERSION;

pub use schema::SCHEMA_CREATE_EDGES;

pub use schema::SCHEMA_CREATE_INDEXES;

pub use schema::SCHEMA_CREATE_METADATA;

pub use schema::SCHEMA_CREATE_NODES;

Modules

cache

Memory Budget Cache

cross_refs

Cross-Partition Edge Index and Storage

manager

Lazy Graph Manager

partition

SQLite Partition Connection and CRUD Operations

partitioner

Graph Partitioner

schema

SQLite Schema Definitions for Partition Storage