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Objectionary

EO Programming Language, Its Objects, and πœ‘-Calculus
README.md

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Here are the components around the EO programming language and the πœ‘-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 πœ‘-Calculus

    Java 1.5k 255

  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 68

Repositories

Showing 10 of 68 repositories
  • 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 41 176 (22 issues need help) 35 Updated Nov 2, 2026
  • wpa Public

    Whole Program Analysis (WPA) linters for EO code

    objectionary/wpa's past year of commit activity
    Java 4 MIT 3 12 1 Updated Nov 2, 2026
  • jeo-maven-plugin Public

    This Maven plugin converts Java Bytecode binary files to EOLANG programs that use the "opcode" atom

    objectionary/jeo-maven-plugin's past year of commit activity
    Java 23 MIT 23 91 (1 issue needs help) 64 Updated Nov 2, 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) 0 Updated Nov 2, 2026
  • eo Public

    EOLANG, an Experimental Pure Object-Oriented Programming Language Based on πœ‘-Calculus

    objectionary/eo's past year of commit activity
    Java 1,477 MIT 255 156 (10 issues need help) 116 Updated Nov 2, 2026
  • sodg-maven-plugin Public

    XMIR to SODG generator, as a Maven plugin

    objectionary/sodg-maven-plugin's past year of commit activity
    Java 7 MIT 8 21 (6 issues need help) 17 Updated Nov 2, 2026
  • hone-maven-plugin Public

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

    objectionary/hone-maven-plugin's past year of commit activity
    Java 15 MIT 20 63 (2 issues need help) 42 Updated Nov 1, 2026
  • xax Public

    Java library for testing XSL stylesheets with XML samples and XPath assertions

    objectionary/xax's past year of commit activity
    Java 10 MIT 3 12 7 Updated Nov 1, 2026
  • jucs Public

    JUnit Classpath Sources: a simple framework for using classpath resources as JUnit sources

    objectionary/jucs's past year of commit activity
    Java 10 MIT 7 14 3 Updated Nov 1, 2026
  • phie Public

    Experimental Emulator of a Machine that Understands πœ‘-calculus

    objectionary/phie's past year of commit activity
    Rust 15 9 20 12 Updated Nov 1, 2026
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