Rust adapter

The Rust adapter parses .rs files with Tree-sitter and resolves symbols from a rust-analyzer SCIP batch index. The default RustScipResolver runs rust-analyzer scip once to write a static SCIP index and answers every query from it, instead of driving an interactive LSP server that keeps the whole workspace's analysis state resident. On a large workspace such as ruff this is roughly 2 GB / 70 s versus 15 GB / 250 s for the LSP path — and it produces a complete index rather than degrading partway through.

:::info Get it through Docker The Rust adapter is not published to PyPI. The supported way to use it is the Docker image, which bundles the adapter together with the Rust toolchain and rust-analyzer:

docker run --rm -v "$PWD:/workspace" ghcr.io/neko1313/graphlens \
    analyze /workspace --lang rust --output /workspace/graph.json

:::

Use

from pathlib import Path
from graphlens import adapter_registry

adapter = adapter_registry.load("rust")()
graph = adapter.analyze(Path("./my-crate"))

The package exports RustAdapter and its resolvers:

from graphlens_rust import (
    RustAdapter,
    RustResolver,
    RustScipResolver,
    RustAnalyzerResolver,
)

Property	Value
Language id	rust
Project marker	Cargo.toml
Resolver	RustScipResolver (default)
Engine	rust-analyzer scip (batch SCIP index)

Resolvers

Resolver	Engine	Use it for
RustScipResolver (default)	rust-analyzer scip batch index	Whole-project scans; far lower peak memory and faster than the LSP path.
RustAnalyzerResolver	rust-analyzer LSP server	Available as an alternative (e.g. interactive/incremental queries via definition_at/references_to).
RustResolver	none (structure only)	Explicitly skip type-aware resolution; always reports unavailable.

Inject a non-default resolver through the constructor:

from graphlens_rust import RustAdapter, RustAnalyzerResolver

adapter = RustAdapter(resolver=RustAnalyzerResolver())

Requirements

Both resolvers drive rust-analyzer and need the Rust toolchain (Cargo) available. Both are pre-installed in the Docker image. Built from source, ensure rust-analyzer is on the PATH; otherwise the adapter falls back to a structure-only graph and reports a non-ok resolver status.

CLI

docker run --rm -v "$PWD:/workspace" ghcr.io/neko1313/graphlens \
    analyze /workspace --lang rust