ruchy 3.26.0

A systems scripting language that transpiles to idiomatic Rust with extreme quality engineering
Documentation

Ruchy Programming Language

License: MIT Rust 1.75+ Crates.io Test Coverage

A modern, expressive programming language for data science and scientific computing, featuring a self-hosting compiler, comprehensive tooling, and enterprise-grade quality standards.

Features

  • Self-Hosting Compiler: Written in Rust with full bootstrapping capabilities
  • Interactive REPL: Advanced REPL with syntax highlighting and completion
  • WebAssembly Support: Compile to WASM for browser and edge deployment
  • Notebook Integration: Jupyter-style notebooks with testing framework
  • Type System: Bidirectional type checking with inference
  • Actor Model: Built-in concurrency with supervision trees
  • Quality First: Toyota Way principles with PMAT A+ code standards

Installation

# Install from crates.io
cargo install ruchy

# Or build from source
git clone https://github.com/noahgift/ruchy
cd ruchy
cargo build --release

Quick Start

# Start the interactive REPL
ruchy repl

# Run a Ruchy script
ruchy run script.ruchy

# Format code
ruchy fmt src/

# Run tests
ruchy test run tests/

Language Examples

Basic Syntax

// Variables and functions
let x = 42
let add = fn(a, b) => a + b

// Pattern matching
match value {
    Some(x) => println(f"Got {x}"),
    None => println("Nothing"),
}

// Async/await
async fn fetch_data(url) {
    let response = await http.get(url)
    response.json()
}

Data Science Features

// DataFrame operations
let df = read_csv("data.csv")
let result = df
    |> filter(row => row.age > 18)
    |> group_by("category")
    |> agg(mean("value"))
    |> sort_by("mean_value", descending=true)

// Plotting
plot(df.x, df.y, kind="scatter", title="Analysis")

CLI Commands

Core Commands

  • ruchy repl - Start interactive REPL
  • ruchy run <file> - Execute a Ruchy script
  • ruchy fmt <path> - Format code (supports --check flag)

WebAssembly

  • ruchy wasm compile <input> -o <output> - Compile to WASM
  • ruchy wasm validate <module> - Validate WASM module
  • ruchy wasm run <module> - Execute WASM module

Notebook

  • ruchy notebook serve - Start notebook server
  • ruchy notebook test <file> - Test notebook with coverage
  • ruchy notebook convert <input> <output> - Convert notebook format

Testing

  • ruchy test run <path> - Run tests with optional coverage
  • ruchy test report - Generate test report (HTML/JSON/JUnit)

Project Structure

ruchy/
├── src/
│   ├── frontend/       # Parser and AST
│   ├── middleend/      # Type system and inference
│   ├── backend/        # Code generation and transpilation
│   ├── runtime/        # REPL and interpreter
│   ├── lsp/           # Language server protocol
│   └── wasm/          # WebAssembly support
├── tests/             # Integration tests
├── examples/          # Example programs
└── docs/             # Documentation

Quality Standards

This project follows strict quality engineering practices:

  • Test Coverage: 46.41% line coverage, 50.79% branch coverage
  • Complexity Limits: All functions ≤10 cyclomatic complexity
  • Zero Technical Debt: No TODO/FIXME comments allowed
  • PMAT A+ Grade: Enforced via automated quality gates
  • TDD Practice: Test-first development methodology

Development

# Run tests
cargo test

# Check coverage
cargo llvm-cov

# Run quality checks
cargo clippy -- -D warnings
cargo fmt -- --check

# Build documentation
cargo doc --open

Documentation

Contributing

We welcome contributions! Please see our Contributing Guide for details on our code of conduct and development process.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

  • Built with Rust and the incredible Rust ecosystem
  • Inspired by Python's expressiveness and Rust's safety
  • Quality practices from Toyota Way and PMAT methodologies

Contact