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Objectionary

EO Programming Language, Its Objects, and 𝜑-Calculus
README.md

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Here are the components around the EO programming language and the 𝜑-calculus it's based on:

  • /eo is the canonical transpiler of EO programs to Java (start here!)
  • /lints is a collection of linting rules for EO
  • /eoc is a command line toolkit for compiling and running EO programs
  • /eo-lsp-server is an LSP server for EO
  • /eo-vscode is an EO plugin for VS Code
  • /eo-intellij-plugin is an EO plugin for JetBrains IDEs
  • /home is where we keep EO sources of all "canonical" objects

Our blog with recent news is here: news.eolang.org. Read our academic papers. Read the book about EO.

Our Twitter tag is #eolang. This is what Hacker News thinks about us.

If you want to discuss, join our Slack workspace and Telegram chat.

By the way, here is the list of things we still haven't had time to implement. You can help!

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  1. eo eo Public

    EOLANG, an Experimental Pure Object-Oriented Programming Language Based on 𝜑-Calculus

    Java 1.5k 252

  2. home home Public

    Centralized curated storage of all EO objects together with their unit tests

    Shell 35 12

  3. eo-intellij-plugin eo-intellij-plugin Public

    Syntax Highlighting Intellij IDEA Plugin for EO Programming Language

    Java 18 11

  4. eoc eoc Public

    Command-line toolkit for parsing, compiling, transpiling, optimizing, linking, dataizing, and running EOLANG programs

    JavaScript 36 63

Repositories

Showing 10 of 68 repositories
  • home Public

    Centralized curated storage of all EO objects together with their unit tests

    objectionary/home's past year of commit activity
    Shell 35 MIT 12 9 4 Updated Oct 3, 2026
  • eo-graphs Public

    A few classic graph algorithms implemented in C++, Java, and EOLANG

    objectionary/eo-graphs's past year of commit activity
    Java 17 MIT 6 24 7 Updated Oct 3, 2026
  • game-of-life Public

    Experimental implementation of Conway's Game of Life in C++ and EO: works from the command line

    objectionary/game-of-life's past year of commit activity
    C++ 14 MIT 3 13 (2 issues need help) 7 Updated Oct 3, 2026
  • eo Public

    EOLANG, an Experimental Pure Object-Oriented Programming Language Based on 𝜑-Calculus

    objectionary/eo's past year of commit activity
    Java 1,468 MIT 252 185 (14 issues need help) 91 Updated Oct 3, 2026
  • lints Public

    A collection of style checkers for XMIR: they don't predict runtime errors, but prevent compilation mistakes

    objectionary/lints's past year of commit activity
    Java 14 MIT 39 141 (22 issues need help) 31 Updated Oct 3, 2026
  • eo-intellij-plugin Public

    Syntax Highlighting Intellij IDEA Plugin for EO Programming Language

    objectionary/eo-intellij-plugin's past year of commit activity
    Java 18 MIT 11 26 (6 issues need help) 10 Updated Oct 3, 2026
  • eo-lsp-server Public

    LSP server for the EOLANG programming language: works with VS Code, Sublime Text, IntelliJ IDEA and other IDEs

    objectionary/eo-lsp-server's past year of commit activity
    TypeScript 6 MIT 13 47 (6 issues need help) 15 Updated Oct 2, 2026
  • eo-vscode Public

    VSCode Extension for the EO Language with a Language Server

    objectionary/eo-vscode's past year of commit activity
    TypeScript 9 MIT 5 11 (1 issue needs help) 10 Updated Oct 3, 2026
  • sodg.rs Public

    Rust implementation of Surging Object DiGraph (SODG): it automatically collects garbage removing unnecessary nodes

    objectionary/sodg.rs's past year of commit activity
    Rust 19 MIT 13 14 (1 issue needs help) 15 Updated Oct 2, 2026
  • hone-maven-plugin Public

    Maven plugin that applies a number of optimizations to your Bytecode, using EOLANG and 𝜑-calculus, trying to make it work faster

    objectionary/hone-maven-plugin's past year of commit activity
    Java 15 MIT 17 83 (2 issues need help) 48 Updated Oct 2, 2026
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