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Juvix empowers developers to write code in a high-level, functional language, compile it to gas-efficient output VM instructions, and formally verify the safety of their contracts prior to deployment and execution.
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Update validity predicate milestone example to 0.2 syntax (#167) 
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Co-authored-by: Jonathan Cubides <jonathan.cubides@uib.no>
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README.org

MiniJuvix

<a href="https://github.com/heliaxdev/minijuvix/blob/main/LICENSE"> <img alt="LICENSE" src="https://img.shields.io/badge/license-GPL--3.0--only-blue.svg" /> </a>

<a href="https://github.com/heliaxdev/MiniJuvix/actions/workflows/ci.yml"> <img alt="CI status" src="https://github.com/heliaxdev/MiniJuvix/actions/workflows/ci.yml/badge.svg" /> </a>

Description

MiniJuvix is a programming language for writing efficient formally-verified validity predicates, which can be deployed to various distributed ledgers. This is software released for experimentation and research purposes only. No warranty is provided or implied.

MiniJuvix addresses many issues that we have experienced while trying to write and deploy decentralized applications present in the ecosystem of smart-contracts:

  • the difficulty of adequate program verification,
  • the ceiling of compositional complexity,
  • the illegibility of execution costs, and
  • the lock-in to particular backends.

Quick Start

To install MiniJuvix, you can download its sources using Git from the Github repository. Then, the program can be downloaded and installed with the following commands. You will need to have Stack installed.

git clone https://github.com/heliaxdev/minijuvix.git
cd minijuvix
stack install

If the installation succeeds, you must be able to run the minijuvix command from any location. To get the complete list of commands, please run minijuvix --help.

Usage Example

In the following example a MiniJuvix file is compiled using the C backend. The result is compiled to WASM using Clang and then executed using wasmer.

NB: Set the WASI_SYSROOT_PATH environment variable to the root of the WASI sysroot. See Installing dependencies for instructions on how to install the sysroot.

cd tests/positive/MiniC/HelloWorld
minijuvix compile Input.mjuvix
wasmer Input.wasm

You should see the output: hello world!

Other Documentation

Developer Tooling

Community

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