Unity LS

A Language Server Protocol (LSP) implementation focused on Unity-specific features for C# scripts.

Features

• Asset References: Shows where a script component is referenced in scenes (.unity), prefabs (.prefab), and assets (.asset) files using CodeLens.

Architecture

• src/main.rs bootstraps logging and starts the server runtime.
• src/server.rs owns LSP transport loop, initialization, request/notification dispatch, and response writing.
• src/document_storage.rs stores open document text snapshots by URI.
• src/capabilities/codelens.rs implements Unity-specific CodeLens:
  • parse class line from C# file (tree-sitter query)
  • read script GUID from .cs.meta
  • scan Assets/ for GUID references
  • resolve final showUnityReferences command arguments

Local development

• Build: cargo build
• Check: cargo check
• Test: cargo test
• Single test: cargo test <name>