Crate auto_lsp 

Auto LSP

A Rust crate for creating Abstract Syntax Trees (AST) and Language Server Protocol (LSP) servers powered by Tree-sitter

auto_lsp is a generic library for creating Abstract Syntax Trees (AST) and Language Server Protocol (LSP) servers.//!

It leverages crates such as lsp_types, lsp_server, salsa, and texter, and generates the AST of a Tree-sitter language to simplify building LSP servers.

auto_lsp provides useful abstractions while remaining flexible. You can override the default database as well as all LSP request and notification handlers.

It is designed to be as language-agnostic as possible, allowing any Tree-sitter grammar to be used.

See ARCHITECTURE.md for more information.

✨ Features

• Generates a thread-safe, immutable and iterable AST with parent-child relations from a Tree-sitter language.
• Supports downcasting of AST nodes to concrete types.
• Integrates with a Salsa database and parallelize LSP requests and notifications.

📚 Documentation

• book
• docs.rs

Examples

• HTML AST
• Python AST
• Simple LSP Server
• Vscode extension
• Vscode extension with WASI

Cargo Features

• lsp_server: Enables the LSP server (uses lsp_server).
• wasm: Enables wasm support (only compatible with wasi-p1-threads).

Inspirations / Similar projects

• Volar
• Type-sitter
• Rust Analyzer
• Ruff
• airblast-dev’s texter, which saved hours of headache

Re-exports

pub use anyhow;

pub use lsp_server;

pub use lsp_types;

pub use salsa;

pub use texter;

pub use tree_sitter;

Modules

core

Re-export of the auto_lsp_core crate

default

server

Macros

configure_parsers

Create the parsers with any given language.

define_semantic_token_modifiers

Define the standard and custom semantic token modifiers.

define_semantic_token_types

Define the standard and custom semantic token types.