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154 lines
4.7 KiB
Markdown
154 lines
4.7 KiB
Markdown
<!--p align="center">
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<img width="1412" src="https://cdn.aleo.org/leo/banner.png">
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</p-->
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<h1 align="center">The Leo Programming Language</h1>
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<p align="center">
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<a href="https://circleci.com/gh/AleoHQ/leo"><img src="https://circleci.com/gh/AleoHQ/leo.svg?style=svg&circle-token=00960191919c40be0774e00ce8f7fa1fcaa20c00"></a>
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<a href="https://codecov.io/gh/AleoHQ/leo"><img src="https://codecov.io/gh/AleoHQ/leo/branch/testnet3/graph/badge.svg?token=S6MWO60SYL"/></a>
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<a href="https://discord.gg/aleo"><img src="https://img.shields.io/discord/700454073459015690?logo=discord"/></a>
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<a href="https://github.com/AleoHQ/leo/blob/testnet3/CONTRIBUTORS.md"><img src="https://img.shields.io/badge/contributors-393-ee8449"/></a>
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</p>
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<div id="top"></div>
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Leo is a functional, statically-typed programming language built for writing private applications.
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## <a name='TableofContents'></a>Table of Contents
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* [🍎 Overview](#-overview)
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* [⚙️️ Build Guide](#-build-guide)
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* [🦀 Install Rust](#-install-rust)
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* [🐙 Build from Source Code](#-build-from-source-code)
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* [🦁 Update from Leo](#-update-from-leo)
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* [📦 Download using Cargo](#-download-using-cargo)
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* [🚀 Quick Start](#-quick-start)
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* [🧰 Troubleshooting](#-troubleshooting)
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* [📖 Documentation](#-documentation)
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* [🤝 Contributing](#-contributing)
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* [❤️ Contributors](#-contributors)
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* [🛡️ License](#-license)
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## 🍎 Overview
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Welcome to the Leo programming language.
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Leo provides a high-level language that abstracts low-level cryptographic concepts and makes it easy to
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integrate private applications into your stack. Leo compiles to circuits making zero-knowledge proofs practical.
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The syntax of Leo is influenced by traditional programming languages like JavaScript, Scala, and Rust, with a strong emphasis on readability and ease-of-use.
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Leo offers developers with tools to sanity check circuits including unit tests, integration tests, and console functions.
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Leo is one part of a greater ecosystem for building private applications on [Aleo](https://aleo.org/).
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The language is currently in an alpha stage and is subject to breaking changes.
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## ⚙️️ Build Guide
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### 🦀 Install Rust
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We recommend installing Rust using [rustup](https://www.rustup.rs/). You can install `rustup` as follows:
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- macOS or Linux:
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```bash
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curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
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```
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- Windows (64-bit):
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Download the [Windows 64-bit executable](https://win.rustup.rs/x86_64) and follow the on-screen instructions.
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- Windows (32-bit):
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Download the [Windows 32-bit executable](https://win.rustup.rs/i686) and follow the on-screen instructions.
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### 🐙 Build from Source Code
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We recommend installing Leo by building from the source code as follows:
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```bash
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# Download the source code
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git clone https://github.com/AleoHQ/leo
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cd leo
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# Install 'leo'
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$ cargo install --path .
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```
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Now to use leo, in your terminal, run:
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```bash
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leo
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```
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### 🦁 Update from Leo
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You can update Leo to the latest version using the following command:
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```bash
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leo update
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```
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Now to check the version of leo, in your terminal, run:
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```bash
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leo --version
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```
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### 📦 Download using Cargo
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You can also install Leo directly from [crates.io](https://crates.io/crates/leo) using `cargo`:
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```bash
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cargo install leo-lang
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```
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Now to use leo, in your terminal, run:
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```bash
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leo
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```
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## 🚀 Quick Start
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Use the Leo CLI to create a new project
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```bash
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# create a new `hello-world` Leo project
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leo new helloworld
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cd helloworld
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# build & setup & prove & verify
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leo run main 0u32 1u32
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```
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The `leo new` command creates a new Leo project with a given name.
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The `leo run` command will compile the program into Aleo instructions and run it.
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Congratulations! You've just run your first Leo program.
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## 🧰 Troubleshooting
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If you are having trouble installing and using Leo, please check out our [guide](docs/troubleshooting.md).
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If the issue still persists, please [open an issue](https://github.com/AleoHQ/leo/issues/new/choose).
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## 📖 Documentation
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* [Hello World - Next Steps](https://developer.aleo.org/leo/hello)
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* [Leo Language Documentation](https://developer.aleo.org/leo/language)
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* [Leo ABNF Grammar](https://github.com/AleoHQ/grammars/blob/master/leo.abnf)
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* [Homepage](https://developer.aleo.org/overview/)
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## 🤝 Contributing
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Please see our guidelines in the [developer documentation](./CONTRIBUTING.md)
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## ❤️ Contributors
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View all Leo contributors [here](./CONTRIBUTORS.md).
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## 🛡️ License
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[](./LICENSE.md)
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<p align="right"><a href="#top">🔼 Back to top</a></p>
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