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Ideas List - Google Summer of Code 2021

We are proud to announce that this year we will again be participating in Google Summer of Code. In this page we introduce some of the projects that are are working with us this year under the LabLua umbrella and list some potential ideas for GSOC 2021 projects.

If you are a student, feel free to get in touch with us via our mailing list or by sending an email to one of our mentors. You can apply using one of the ideas in the list or you can bring your own idea. Either way, don't leave it to the last minute :)

Please use our application template to prepare your proposal.

Lua scripted watchpoints in LLDB

LLDB is a modern debugger developed by the LLVM project. LLDB can be scripted with Python and more recently with Lua.

Scripted watchpoints allow users to attach a script or Lua function to a watchpoint and execute it when the program flow hits it. In this project, you will add support for Lua in scripted watchpoints. You will also improve the general Lua scripting documentation.

Expected results

Tools

Prerequisites

Skill level

Intermediate

Mentors

Jonas Devlieghere and Pedro Tammela

Closures for Pallene

Pallene is a statically-typed companion language for Lua. It's main goal is improving Lua's performance by allowing programmers to use type annotations to write performant extension modules.

The Pallene language implements a subset of Lua's features. One feature that is currently missing are nested functions and closures. Implementing them would empower programmers to use a more functional programming style and would make it easier to use Lua APIs that expect to receive a Pallene function as a callback.

Expected results

Prerequisites

Skill level

Challenging

Mentor

Hugo Gualandi

Typed API for LuaRocks

LuaRocks is the package manager for Lua. It is written as a Lua application, composed of several modules required by the main "luarocks" CLI program.

These modules were not originally designed for reuse outside of LuaRocks, but some provide useful generic functionality, such as filesystem and platform abstractions. Further, they do not provide a programmatic interface for other applications which wish to drive LuaRocks using Lua scripting.

The goal of this project is to provide typed API for LuaRocks modules, specified using Teal, a typed dialect of Lua, which allows for typed definition files to be written for untyped Lua modules. Our goal here is not to port all of LuaRocks to Teal, but to provide typed interfaces for Teal or Lua applications, so that users of these interfaces can have a stable contract of the API's inputs and outputs.

We will exercise this new API via a proof-of-concept implementation integrating LuaRocks to some other Lua application via the API, yet to be chosen by the student and mentor. This will allow opportunity for interacting with other open source projects as well.

Expected results

Tools

Prerequisites

Skill level

Intermediate

Mentor

Hisham Muhammad

A Lua library for Freechains-P2P

Freechains is an unstructured peer-to-peer topic-based publish-subscribe system. Each topic, or chain, is disseminated peer by peer in the network with gossiping. This way, as an author posts to a chain, other users subscribed to the same chain eventually receive the message. Freechains supports multiple types of chains for public and private communication.

The goal of this project is to create a Lua library to interface with Freechains. The Lua interface should mimic the standard command-line interface of Freechains.

Tools

Prerequisites

The student should be familiar with Lua and LuaSockets. We ask applicants to complete the following activities before the application period:

Skill level

Easy

Mentor

Francisco Sant'Anna