System programming language made with C++ & LLVM

‍[!CAUTION] SLEAF is currently in active alpha development. While core functionality is stable, some advanced features are still evolving. Production use requires thorough testing.

🚀 Technical Overview

SLEAF is a statically-typed systems programming language designed for performance-critical applications. Built on LLVM 19, it combines low-level memory control with expressive classic C-based-syntax.

📦 Installation & Usage

System Requirements

LLVM 19 development files
C++20 compatible clang version
CPU
RAM (optional)

Build Instructions

# Clone repository with submodules
git clone --recurse-submodules https://github.com/alexeev-prog/sleaf-llvm.git
cd sleaf-llvm
 
# Build full project
./build.sh all
 
./build/bin/sleafllvm -h

How To Use

Please, build and install lib. Instruction here.

You also can read Hacking

Core Technical Features

Feature	Technical Implementation	Performance Impact
LLVM19 Backend	Direct LLVM IR generation via C++ API	Near-native execution speed, advanced optimizations
Cross-Platform	Single IR → Windows/Linux/macOS binaries	Consistent behavior across platforms

⚖️ License

System programming language made with C++ &amp; LLVM
Copyright (C) 2025 Alexeev Bronislav
 
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.

SLEAF Manifesto

*"We reject the false choice between performance and expressiveness. We reject the old methods imposed by backward compatibility with long-dead legacy products. SLEAF is a new era in researching programming that combines the simplicity of classic C-syntax with the functionality of C/C++. Thanks to the purity of the project and its versatility, you can create anything and everything you want."*

Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines. Key areas for contribution include:

Additional test cases for thread-local scenarios
Performance optimization proposals
Extended version format support
IDE integration plugins

Contribution Guidelines

Issue Tracking - Report bugs via GitHub Issues
Pull Requests - Follow CONTRIBUTING.md
Code Standards - Adhere to specifications
Performance - Validate changes with benchmarks
Documentation - Update relevant documentation

License & Support

This project is licensed under GNU GPL 3.0 License - see LICENSE. For commercial support and enterprise features, contact alexeev.dev@mail.ru.

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_{Made with LLVM 19}