codelens-engine

Core code intelligence engine for CodeLens MCP.

Pure Rust library providing tree-sitter-based symbol extraction, import graph analysis, and optional embedding-based semantic search across 25 programming languages.

Features

• Symbol extraction — AST-based parsing for functions, classes, types, variables
• Import graph — cross-file dependency tracking with cycle detection
• Scope analysis — block-level scope resolution for rename safety
• Call graph — static call relationship extraction
• Type hierarchy — inheritance/implementation chain analysis
• LSP integration — optional Language Server Protocol bridge
• Semantic search — embedding-based code search (feature-gated: semantic)

Language Support

Rust, TypeScript, JavaScript, Python, Go, Java, Kotlin, C, C++, PHP, Swift, Scala, Ruby, C#, Dart, Lua, Zig, Elixir, Haskell, OCaml, Erlang, R, Bash, Julia, Clojure

Usage

[dependencies]
codelens-engine = "1.7"

# With semantic search:
codelens-engine = { version = "1.7", features = ["semantic"] }

use codelens_engine::{ProjectRoot, SymbolIndex};

let project = ProjectRoot::discover(".").unwrap();
let index = SymbolIndex::build(&project).unwrap();
let symbols = index.symbols_in_file("src/main.rs");

Feature Flags

License

Apache-2.0