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⚠️ MOVED to nekocode-rust - 16x faster, 96% smaller. See github.com/moe-charm/nekocode-rust

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⚠️ This Repository Has Moved to nekocode-rust ⚠️

🚀 Click Here for the NEW 16x Faster Version 🚀

nekocode-rust: 9MB repo (vs 235MB here) | 16x faster | Rust + Tree-sitter

🔴 IMPORTANT: This repository is ARCHIVED. All development has moved to nekocode-rust

  • 96% smaller repository (9MB vs 235MB)
  • 16x faster performance (1.2s vs 19.5s)
  • No build hell (3 seconds vs 5+ hours)
  • Pre-built binary included for instant use

🦀 NekoCode - Ultra-Fast Rust Code Analyzer | 16x Faster than C++ | Tree-sitter Powered

⚠️ DEPRECATED - See nekocode-rust for the latest version

🚀 NEW! Rust Edition with Tree-sitter: 16x faster, better accuracy, zero build hell! 🤖 Claude Code Users: PROJECT_OVERVIEW.txt ← START HERE!
📚 Quick Guide: CLAUDE_QUICKSTART.md ← 3-step setup
📋 CLI & MCP Reference: docs/CLI_MCP_REFERENCE.md ← Complete command guide
📖 Full Docs: docs/claude-code/ ← All Claude Code documentation

Rust Tree-sitter AI Compatible Multi Language Build Status License: MIT Platform

🇯🇵 日本語版 | English

Revolutionary Rust-powered code analyzer delivering 16x faster performance than traditional parsers! Featuring Tree-sitter integration for lightning-fast, accurate analysis of 8 languages: JavaScript, TypeScript, C++, C, Python, C#, Go, Rust with Claude Code optimization.

🚀 Why Rust Edition?

⚡ Blazing Fast Performance

# TypeScript Compiler (68 files) Performance Comparison:
┌──────────────────┬────────────┬─────────────┐
│ Parser           │ Time       │ Speed       │
├──────────────────┼────────────┼─────────────┤
│ Rust Tree-sitter │    1.2s    │ 🚀 16.38x   │
│ C++ (PEGTL)      │   19.5s    │ 1.00x       │
│ Rust (PEST)      │   60.7s    │ 0.32x       │
└──────────────────┴────────────┴─────────────┘

🎯 Superior Detection Accuracy

# Detection Comparison (Medium JS File):
┌──────────────────┬───────────┬──────────┬────────┐
│ Parser           │ Functions │ Classes  │ Total  │
├──────────────────┼───────────┼──────────┼────────┤
│ Rust Tree-sitter │    20     │    2     │   22   │
│ Rust (PEST)      │    13     │    1     │   14   │
│ C++ (PEGTL)      │     4     │    2     │    6   │
└──────────────────┴───────────┴──────────┴────────┘

🛠️ Zero Build Hell

# Rust Edition (Heaven ✨)
cargo build --release  # Done in 3 seconds!

# vs C++ Edition (Hell 💀)
mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make -j16  # Template errors, dependency hell, 5+ hours debugging...

🔧 Installation

Prerequisites

  • Rust (Latest stable)

Build (Simple!)

cd nekocode-rust/
cargo build --release

# Binary location: ./target/release/nekocode-rust

🚀 Quick Start

Basic Analysis

# Analyze a JavaScript/TypeScript project
./target/release/nekocode-rust analyze src/ --parser tree-sitter

# Compare parsers (PEST vs Tree-sitter)
./target/release/nekocode-rust analyze src/ --benchmark

# Analyze specific languages
./target/release/nekocode-rust analyze myfile.py --parser tree-sitter
./target/release/nekocode-rust analyze myfile.cpp --parser tree-sitter

Advanced Features

# Session-based analysis
./target/release/nekocode-rust session-create src/
# Session ID: 12345678

# AST analysis
./target/release/nekocode-rust ast-stats 12345678
./target/release/nekocode-rust ast-query 12345678 "MyClass::myMethod"

# Code editing (MCP integration)
./target/release/nekocode-rust replace-preview file.js "oldCode" "newCode"
./target/release/nekocode-rust moveclass-preview 12345678 MyClass target.js

🌟 Key Features

🚀 Ultra-High Performance

  • Tree-sitter Integration: GitHub's cutting-edge parser technology
  • Parallel Processing: Safe Rust concurrency for maximum speed
  • Incremental Parsing: Only re-analyze changed parts
  • Memory Efficient: Rust's zero-cost abstractions

🎯 Multi-Language Support

🟨 JavaScript (.js, .mjs, .jsx, .cjs)
🔷 TypeScript (.ts, .tsx)  
🔵 C++ (.cpp, .cxx, .cc, .hpp, .hxx, .hh)
🔵 C (.c, .h)
🐍 Python (.py, .pyw, .pyi)
🟦 C# (.cs)
🐹 Go (.go)
🦀 Rust (.rs)

🧠 AI-Optimized Analysis

  • Function Detection: Including arrow functions, async functions
  • Class Analysis: Inheritance, methods, properties
  • Dependency Mapping: Imports, exports, module relationships
  • Complexity Metrics: Cyclomatic complexity, nesting depth
  • AST Operations: Query, scope analysis, structure dump

🔧 Developer-Friendly

  • Session Management: Persistent analysis sessions
  • Code Editing: Replace, insert, move operations with preview
  • Memory System: Save/load analysis results
  • MCP Integration: Claude Code Server support
  • Configuration: Flexible settings management

📊 Benchmarks

Real-World Performance

# TypeScript Compiler (Microsoft)
# 68 files, ~200KB total
Rust Tree-sitter: 1.189s ⚡
C++ PEGTL:       19.477s
Rust PEST:       60.733s

# Detection Accuracy: 
# Functions detected: 1,000+ (Tree-sitter) vs 200+ (PEGTL)

🏗️ Architecture

Tree-sitter Integration

// Lightning-fast parsing with Tree-sitter
let mut parser = Parser::new();
parser.set_language(&tree_sitter_javascript::LANGUAGE.into())?;
let tree = parser.parse(content, None)?;

// Parallel processing with Rust safety
let results = tokio::task::spawn_blocking(move || {
    analyze_with_tree_sitter(tree, content)
}).await?;

Parser Comparison

# Switch between parsers easily
./target/release/nekocode-rust analyze file.js --parser pest        # PEST parser
./target/release/nekocode-rust analyze file.js --parser tree-sitter # Tree-sitter (recommended)
./target/release/nekocode-rust analyze file.js --benchmark          # Compare both

🤖 Claude Code Integration

NekoCode Rust Edition is optimized for AI-assisted development:

# MCP Server integration
./target/release/nekocode-rust session-create large-project/
# Use with Claude Code for intelligent code analysis

# Direct editing operations  
./target/release/nekocode-rust replace-preview src/main.js "oldPattern" "newPattern"
./target/release/nekocode-rust moveclass-preview session123 UserClass src/models/user.js

📚 Commands Reference

Analysis Commands

analyze <path>              # Analyze files/directories
languages                   # List supported languages

Session Management

session-create <path>       # Create analysis session
session-command <id> <cmd>  # Execute session command

Code Editing (MCP)

replace-preview <file> <pattern> <replacement>  # Preview replacement
replace-confirm <preview_id>                    # Confirm replacement
insert-preview <file> <line> <content>          # Preview insertion
moveclass-preview <session> <class> <target>    # Preview class move

AST Operations

ast-stats <session>         # AST statistics
ast-query <session> <path>  # Query AST nodes
scope-analysis <session> <line>  # Analyze scope at line
ast-dump <session> [format] # Dump AST structure

🏆 Why Choose Rust Edition?

✅ Performance Champion

  • 16x faster than C++ implementation
  • Superior detection accuracy
  • Tree-sitter's cutting-edge technology
  • Parallel processing safety

✅ Developer Experience

  • One-command build: cargo build --release
  • No dependency hell, no template errors
  • Cross-platform compilation
  • Modern tooling and packaging

✅ Future-Proof

  • Tree-sitter: Used by GitHub, Neovim, Atom
  • Rust: Growing ecosystem, memory safety
  • Active development and modern features
  • AI-first design philosophy

🗂️ Repository Structure

nekocode-rust/              # 🦀 Main Rust implementation (RECOMMENDED)
├── src/
│   ├── analyzers/          # Language-specific analyzers
│   │   ├── javascript/     # JS/TS with Tree-sitter + PEST
│   │   ├── python/         # Python analyzer
│   │   ├── cpp/           # C++ analyzer  
│   │   └── ...            # Other languages
│   ├── core/              # Core functionality
│   │   ├── session.rs     # Session management
│   │   ├── memory.rs      # Memory system
│   │   └── ast.rs         # AST operations
│   └── main.rs            # CLI interface

# Legacy C++ implementation (reference only)
src/                        # C++ source (legacy)
build/                      # C++ build directory  
docs/                       # Documentation

🤝 Contributing

We welcome contributions! The Rust edition is now the primary development target.

📄 License

MIT License - see LICENSE file for details.

🔥 Ready to experience 16x faster code analysis?

git clone https://github.com/your-org/nekocode.git
cd nekocode/nekocode-rust/
cargo build --release
./target/release/nekocode-rust analyze your-project/ --parser tree-sitter

No more build hell. No more waiting. Just blazing fast analysis. 🚀🦀

About

⚠️ MOVED to nekocode-rust - 16x faster, 96% smaller. See github.com/moe-charm/nekocode-rust

github.com/moe-charm/nekocode-rust

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javascript python parser performance typescript csharp cpp static-analysis code-analysis ast developer-tools code-review code-quality multi-language pegtl code-complexity code-analyzer ai-tools claude-ai

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