wifi-densepose/vendor/ruvector/crates/ruvector-wasm/INTEGRATION_STATUS.md

ruvector-wasm Integration Status

Summary

The ruvector-wasm crate has been updated to integrate ruvector-collections and ruvector-filter functionality. However, compilation is currently blocked by pre-existing issues in ruvector-core.

Changes Made

1. Cargo.toml Updates

Added Dependencies:

ruvector-collections = { path = "../ruvector-collections", optional = true }
ruvector-filter = { path = "../ruvector-filter", optional = true }
getrandom02 = { package = "getrandom", version = "0.2", features = ["js"] }

Added Features:

[features]
collections = ["dep:ruvector-collections", "dep:ruvector-filter"]

WASM Configuration:

[target.'cfg(target_arch = "wasm32")'.dependencies]
getrandom = { workspace = true, features = ["wasm_js"] }

2. src/lib.rs Updates

Added CollectionManager (Lines 411-587):

• new(base_path: Option<String>) - Create collection manager
• create_collection(name, dimensions, metric) - Create new collection
• list_collections() - List all collections
• delete_collection(name) - Delete a collection
• get_collection(name) - Get collection's VectorDB
• create_alias(alias, collection) - Create an alias
• delete_alias(alias) - Delete an alias
• list_aliases() - List all aliases

Added FilterBuilder (Lines 591-799):

• eq(field, value) - Equality filter
• ne(field, value) - Not-equal filter
• gt(field, value) - Greater-than filter
• gte(field, value) - Greater-than-or-equal filter
• lt(field, value) - Less-than filter
• lte(field, value) - Less-than-or-equal filter
• in_values(field, values) - IN filter
• match_text(field, text) - Text match filter
• geo_radius(field, lat, lon, radius_m) - Geo radius filter
• and(filters) - AND combinator
• or(filters) - OR combinator
• not(filter) - NOT combinator
• exists(field) - Field exists filter
• is_null(field) - Field is null filter
• to_json() - Convert to JavaScript object
• get_fields() - Get referenced field names

Current Issues

Compilation Blockers

The ruvector-core crate has conditional compilation issues that prevent WASM builds:

1. redb dependency: Code in error.rs uses redb types without #[cfg(feature = "storage")] guards
2. hnsw_rs dependency: Code in index/hnsw.rs uses hnsw_rs without #[cfg(feature = "hnsw")] guards
3. uuid dependency: Some code uses uuid::Uuid without proper feature guards

Architectural Limitations

Collections and Filter in WASM: The ruvector-collections crate relies on file I/O and memory-mapped files (via mmap-rs), which are not available in browser WASM environments. These features are marked as optional and require the collections feature to be enabled.

Usage

Standard WASM Build (Browser):

cd crates/ruvector-wasm
cargo build --target wasm32-unknown-unknown --release

This builds only the core VectorDB functionality without collections or filter support.

WASM with Collections (WASI/Server):

cargo build --target wasm32-unknown-unknown --release --features collections

Note: This requires a WASM runtime with file system support (e.g., WASI) and will not work in browsers.

JavaScript API Examples

CollectionManager:

import { CollectionManager } from 'ruvector-wasm';

// Create manager
const manager = new CollectionManager();

// Create collection
manager.createCollection("documents", 384, "cosine");

// List collections
const collections = manager.listCollections();

// Create alias
manager.createAlias("current_docs", "documents");

// Get collection
const db = manager.getCollection("current_docs");

// Use the VectorDB
const id = db.insert(vector, "doc1", { title: "Hello" });

FilterBuilder:

import { FilterBuilder } from 'ruvector-wasm';

// Simple equality filter
const filter1 = FilterBuilder.eq("status", "active");

// Complex filter
const filter2 = FilterBuilder.and([
  FilterBuilder.eq("status", "active"),
  FilterBuilder.or([
    FilterBuilder.gte("age", 18),
    FilterBuilder.lt("priority", 10)
  ])
]);

// Geo filter
const filter3 = FilterBuilder.geoRadius(
  "location",
  40.7128,  // latitude
  -74.0060,  // longitude
  1000      // radius in meters
);

// Convert to JSON for use with search
const filterJson = filter.toJson();
const results = db.search(queryVector, 10, filterJson);

Required Fixes

To make this fully functional, the following changes are needed in ruvector-core:

1. Add cfg guards to error.rs:

#[cfg(feature = "storage")]
impl From<redb::Error> for RuvectorError {
    // ...
}

2. Add cfg guards to index/hnsw.rs:

#[cfg(feature = "hnsw")]
use hnsw_rs::prelude::*;

#[cfg(feature = "hnsw")]
pub struct HnswIndex {
    // ...
}

3. Ensure memory-only feature works:

The memory-only feature should be a complete alternative that doesn't require redb or hnsw_rs.

Files Modified

1. /home/user/ruvector/crates/ruvector-wasm/Cargo.toml
2. /home/user/ruvector/crates/ruvector-wasm/src/lib.rs
3. /home/user/ruvector/Cargo.toml (attempted patch section, later removed)

Verification

Once ruvector-core's conditional compilation issues are fixed, verify with:

# Check basic WASM build
cargo check --target wasm32-unknown-unknown

# Check with collections feature (requires WASI)
cargo check --target wasm32-unknown-unknown --features collections

# Build release
cargo build --target wasm32-unknown-unknown --release

# Run WASM tests
wasm-pack test --node

Next Steps

1. Fix ruvector-core conditional compilation issues
2. Add proper cfg guards for all optional dependencies
3. Test WASM builds with and without collections feature
4. Add WASM-specific tests for CollectionManager and FilterBuilder
5. Document WASI requirements for collections feature
6. Consider creating a pure in-memory alternative to collections for browser use