Language Server Protocol Implementations

This project is a suite of specialized tools for the implementation of a language server, template parsing, and static type validation of single-file components. It provides a language server and a type checker to deliver consistent intelligence and validation for Vue components across different editors and command-line environments. The tooling utilizes a template parser to transform single-file component structures into virtual code, enabling static analysis and type checking on HTML-like structures. This process allows for the extraction of component metadata regarding props, events, and s

lsp-mode is a Language Server Protocol client and IDE feature set for Emacs. It functions as a semantic code analysis tool and JSON-RPC communication layer that connects the editor to external language servers to provide intelligent code completion and real-time diagnostics. The project also serves as a Debug Adapter Protocol client, enabling interactive debugging sessions and breakpoint management. This allows for stepping through code and inspecting variables via a standardized protocol, including support for debugging within Docker containers. The system covers a broad range of developmen

Rust-analyzer is a language server implementation that provides real-time code intelligence, static analysis, and development productivity tools for the Rust programming language. It functions as a backend engine that communicates with text editors to deliver deep structural understanding of source code, enabling features like semantic analysis, symbol navigation, and automated refactoring. The project distinguishes itself through a core engine designed for high-performance responsiveness, utilizing incremental query-based compilation and lazy demand-driven evaluation to minimize resource con

This project is a collection of official toolsets and server implementations designed for the parsing, formatting, and semantic analysis of the Go programming language. It includes a language server that provides real-time code intelligence and automated editing capabilities to editors via the Language Server Protocol. The toolset provides a suite of utilities for source code formatting and static analysis. This includes automated standardization of code layout, import organization, and the generation of string representation methods for enumerated types. The project covers broad static anal

kotlin-lsp is a language server implementation that integrates editors with the Kotlin compiler and build tools to provide language intelligence and code analysis. It uses the Language Server Protocol to decouple heavy language processing from the text editor user interface. The project provides static code analysis to detect issues and provide real-time diagnostics. It enables source code navigation through symbol-index based jumping to definitions and an analysis of how components interact. Additional capabilities include automated source code formatting, intelligent code completion, and s

YouCompleteMe is a completion engine and semantic code analyzer for the Vim editor. It provides an integrated suite of development tools, including a Language Server Protocol client and a semantic analyzer that utilizes Clang to offer context-aware symbols and type-based highlighting. The project distinguishes itself through specialized semantic completion for C-family languages and JavaScript, offering identifiers, snippets, and automatic imports. It provides advanced visual feedback such as inlay hints for type information and parameter names, as well as semantic highlighting based on the a

RLS is a language server that provides language intelligence for the Rust programming language. It implements the Language Server Protocol to enable a standardized communication layer between the Rust compiler and various editor clients. The project focuses on providing real-time code completions, symbol navigation, and type information. It also supports automated structural changes, such as workspace-wide symbol renaming, to maintain semantic correctness during refactoring. The system incorporates static code analysis for linting and formatting, alongside a mechanism for incremental compila

This project is a high-performance static type checker and comprehensive development toolkit for Python. It functions as a core analysis engine that identifies type inconsistencies and enforces code correctness, while simultaneously providing a language server implementation to deliver real-time diagnostics and intelligence directly within development environments. The tool distinguishes itself through a parallelized execution engine that maximizes performance across large-scale codebases and monorepo structures. It supports gradual type adoption, allowing developers to integrate type checkin

coc.nvim is a Node.js extension host and Language Server Protocol client that transforms Vim and Neovim into a full integrated development environment. It provides a framework for executing JavaScript and TypeScript plugins within a separate process to enable advanced IDE features without blocking the editor's main thread. The project is distinguished by its ability to host extensions and language servers through a centralized JSON configuration. It supports the installation and lifecycle management of third-party extensions from registries or local files, allowing users to customize language

Oni2 is a high-performance, extensible text editor and project-based file manager. It functions as a modal code editor, utilizing a keyboard grammar of verbs and motions to navigate and modify source code without a mouse. It also serves as an LSP client, integrating Language Server Protocol servers to provide code completion, symbol navigation, and refactoring. The editor distinguishes itself by acting as a VSCode extension host, allowing it to load and execute language servers and debuggers from the VSCode ecosystem. It provides a programmable environment where custom functionality is implem

Tinymist is a comprehensive suite of tools for Typst document authoring, serving as a language server, document compiler, and project manager. It provides a standardized language service via the Language Server Protocol to enable editor features such as autocompletion, navigation, and semantic highlighting. The project distinguishes itself by integrating a TCP-based live preview server for real-time visual rendering and an advanced static analysis tool that utilizes abstract syntax trees and bidirectional type checking. It also includes a project management system capable of handling multi-fi

Ruff is a high-performance static analysis and code formatting tool designed for Python. Built in Rust, it functions as a comprehensive engine that scans source code to detect programming errors, security vulnerabilities, and deviations from established coding standards. By parsing source code into a structured tree representation, it provides both automated linting and style enforcement across entire projects. The tool distinguishes itself through its speed and deep integration into the development lifecycle. It utilizes parallelized file processing to maximize throughput on large codebases

CopilotForXcode is an AI-powered coding assistant integrated directly into Xcode as a source editor extension. It functions as an agent that can automate multi-step project tasks, such as editing files, running terminal commands, and searching across the entire codebase, all while understanding the full context of the current Xcode project. The assistant provides a context-aware chat interface that answers coding questions based on open files, symbols, and recent edits. It also offers diff-based code review, analyzing changes to provide feedback on code quality and potential issues before mer

GraphiQL is an interactive browser-based integrated development environment for writing, testing, and documenting GraphQL queries and mutations. It functions as a code editor, an API exploration tool, and a schema explorer, providing a visual interface for browsing GraphQL types and fields. The project provides a language server that delivers schema-driven autocompletion, linting, and validation via the Language Server Protocol. It allows for the embedding of high-performance editors into external projects and supports the injection of custom tools and components through a sidebar plugin API.

Swift is a high-performance, general-purpose programming language designed for safety and speed. It features a modular compiler front-end that transforms source code into optimized machine binaries, utilizing a value-oriented type system that prioritizes predictable state management through value and reference types. The language is built on a task-based concurrency model that schedules asynchronous operations across multicore hardware to ensure data race safety. The project distinguishes itself through a native, bi-directional interoperability mechanism that allows for direct integration wit

Pyrefly is a static type checker for Python that operates as a language server, delivering real-time diagnostics, completions, and navigation in any editor supporting the Language Server Protocol. It also performs static tensor shape analysis, using symbolic dimension variables and arithmetic to verify shape consistency in deep learning models without runtime execution. Beyond core type checking, Pyrefly supports gradual adoption workflows: it can generate a baseline of known errors so only new issues are reported, migrate configuration from other type checkers, and automatically suppress exi

RuboCop is a static code analyzer and linter for Ruby. It functions as a static analysis tool designed to detect potential bugs, identify style violations, and improve overall code quality in Ruby projects. The project provides an automated code formatter that rewrites source code to align with established community standards. It also implements a language server protocol to surface linting and formatting errors directly within text editors. Its capabilities cover automated code linting and the analysis of Ruby code style to ensure consistency across a project. These functions are driven by

Biome is a unified developer tooling suite that provides code formatting, linting, and static analysis for JavaScript and TypeScript projects. It functions as a command-line interface designed to automate the maintenance of code quality and style consistency throughout the development lifecycle. The tool distinguishes itself through a high-performance engine built in Rust, which utilizes a single-pass abstract syntax tree to perform formatting and linting simultaneously. By leveraging parallel multi-threaded execution and incremental file system caching, it minimizes latency during analysis t

Zed is an AI-native, high-performance code editor designed for extreme responsiveness and keyboard-centric workflows. It functions as an extensible text processing workspace that integrates autonomous agents and predictive models directly into the development environment to automate complex engineering tasks, refactoring, and code generation. The editor distinguishes itself through a GPU-accelerated rendering pipeline and an asynchronous multi-threaded architecture that ensures low-latency interaction even with large-scale projects. It features built-in support for real-time, multi-user colla

dprint is a multi-language code formatter that applies consistent styling across various programming languages using a pluggable architecture. It functions as a unified project style management tool, a command-line interface for continuous integration style enforcement, and a Language Server Protocol implementation for real-time formatting in editors. The project is distinguished by a WebAssembly-based plugin system that loads sandboxed formatting logic from URLs or file paths. It further extends its capabilities through a process-based tool integration that wraps external command-line interf

Neovim is a text editing environment designed for extensibility and performance. It provides a core engine for text manipulation, multi-window management, and complex editing commands, while maintaining compatibility with existing paradigms. The project features a stable interface that allows external clients to interact with the application state, enabling the development of custom user interfaces and integrated tools. The architecture decouples the core editing logic from the user interface through an asynchronous protocol. This system supports external rendering processes, including termin