Owner

objectionary

30 indexed repositories · View on GitHub

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

Java · 1467 stars
eoc
Command-line toolkit for parsing, compiling, transpiling, optimizing, linking, dataizing, and running EOLANG programs

JavaScript · 36 stars
home
Centralized curated storage of all EO objects together with their unit tests

Shell · 35 stars
jeo-maven-plugin
This Maven plugin converts Java Bytecode binary files to EOLANG programs that use the "opcode" atom

Java · 23 stars
sodg.rs
Rust implementation of Surging Object DiGraph (SODG): it automatically collects garbage removing unnecessary nodes

Rust · 19 stars
eo-intellij-plugin
Syntax Highlighting Intellij IDEA Plugin for EO Programming Language

Java · 18 stars
phino
Command-Line Normalizer, Rewriter, and Dataizer of 𝜑-Calculus Expressions

Haskell · 18 stars
eo-graphs
A few classic graph algorithms implemented in C++, Java, and EOLANG

Java · 17 stars
news.eolang.org
Our Official Blog: we write about the development of EOLANG and 𝜑-calculus

HTML · 16 stars
phie
Experimental Emulator of a Machine that Understands 𝜑-calculus

Rust · 15 stars
reducing-programs-to-objects
LaTeX paper on how to reduce programs to EO objects

TeX · 15 stars
hone-maven-plugin
Maven plugin that applies a number of optimizations to your Bytecode, using EOLANG and 𝜑-calculus, trying to make it work faster

Java · 15 stars
game-of-life
Experimental implementation of Conway's Game of Life in C++ and EO: works from the command line

C++ · 14 stars
lints
A collection of style checkers for XMIR: they don't predict runtime errors, but prevent compilation mistakes

Java · 14 stars
on-the-origin-of-objects
On the Origin of Objects by Means of Careful Selection, LaTeX paper

TeX · 12 stars
reo
Experimental virtual dataflow machine for EO programs, based on SODG

Rust · 12 stars
aoi
Abstract Object inference for EO Programs

Java · 12 stars
eolang.sty
LaTeX package for drawing 𝜑-calculus formulas and SODG graphs

TeX · 11 stars
calculus-paper
The original paper introducing the 𝜑-calculus, on which the EO programming language is based

TeX · 11 stars
xax
Java library for testing XSL stylesheets with XML samples and XPath assertions

Java · 10 stars
10 more repositories live on View on GitHub

Beginner friendly Everything

Open All

Issues somebody may already be working on are listed last. List everything by date

`OyRemote.isDirectory` misunderstands HTTP 403 status as directory absence
Open
- Is something wrong?
bug good-title

Difficulty 3/5 Half a day Newbie friendliness 55/100

objectionary/eo#9402 · 1 comment · Opened Oct 9, 2026

Maintainers usually reply within 1 day
`OyRemote.fetch()` doesn't close HTTP response streams on rejected status
Open
- Is something wrong?
bug good-title

Difficulty 2/5 1-3 hours Newbie friendliness 77/100

objectionary/eo#9391 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
BytecodePlainAnnotationValue compares primitive array values by identity
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/jeo-maven-plugin#1889 · Opened Oct 8, 2026

Maintainers usually reply within 4 days
Field, record-component and module writers leave accepted ASM visitors unfinished
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

objectionary/jeo-maven-plugin#1888 · Opened Oct 8, 2026

Maintainers usually reply within 4 days
BytecodeMethodParameters equality ignores annotable parameter counts
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/jeo-maven-plugin#1887 · Opened Oct 8, 2026

Maintainers usually reply within 4 days
Atom for an entry in Rendering.java not written correctly
Open
- Is something wrong?
bug good-title pdd

Difficulty 2/5 Under an hour Newbie friendliness 56/100

objectionary/eo#9386 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
Const formation `[] > x!` incorrectly rewritten as `x-1 > x!` plus `[] > x-1`, causing pipe following to fail
Open
- Is something wrong?
bug good-title

Difficulty 4/5 3-5 days Newbie friendliness 55/100

objectionary/eo#9382 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`const-to-dataized.xsl` incorrectly names `[] > @!` formation as `φ-1` causing XMIR validation failure
Open
- Is something wrong?
bug good-title

Difficulty 3/5 1-2 days Newbie friendliness 65/100

objectionary/eo#9381 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
The printer writes `q > [m]:0` and `f > []:0 >>` for an inline-phi argument next to a bound one, and the parser rejects them
Open
- Is something wrong?
bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

objectionary/eo#9380 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
A bare auto-named void `? >>` is printed as `? > a🌵2-2` in an atom and as a public `[v2_2]` elsewhere
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

objectionary/eo#9379 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
A name with a `"` inside, like `a"b`, breaks the inline-phi form, and the printer writes exactly this form
Open
- Is something wrong?
bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

objectionary/eo#9378 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`unnecessary-as.xsl` takes cubic time in the number of arguments, so printing an application with 400 arguments takes about 30 seconds
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 82/100

objectionary/eo#9377 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`merge` reports a conflict without the path of the binding and without the files it came from
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 70/100

objectionary/phino#1797 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
No test checks that `--shuffle` changes the order of rules, so a no-op `--shuffle` keeps the suite green
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/phino#1796 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
The test suite in `phino.cabal` depends on `hspec-core` and `optparse-applicative`, which no spec imports
Open
- Is something wrong?
Difficulty 1/5 1-3 hours Newbie friendliness 88/100

objectionary/phino#1795 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
Four failure tests in `CLISpec` feed empty stdin and expect only `[ERROR]`, so they pass with the checks they test removed
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 75/100

objectionary/phino#1793 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
BytecodeAnnotation writers never finish the annotation visitor with visitEnd
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

objectionary/jeo-maven-plugin#1885 · Opened Oct 8, 2026

Maintainers usually reply within 4 days
Annotation value writers fail when an ASM visitor skips an array or nested annotation
Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/jeo-maven-plugin#1884 · Opened Oct 8, 2026

Maintainers usually reply within 4 days
OyIndexed rejects directory-only names when the objects index is unavailable
Open
- Is something wrong?
bug

Difficulty 3/5 1-2 days Newbie friendliness 69/100

objectionary/eo#9368 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
OyCached.get caches a lazy Input but downloads its program again on every read
Open
- Is something wrong?
bug

Difficulty 3/5 1-2 days Newbie friendliness 78/100

objectionary/eo#9367 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
README shows `explain` output that `phino` no longer prints: `tabular`, `\phinoMorphingRule`, `\phinoDataizationRule` and `$ ... $`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/phino#1772 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`merge --input=xmir` gives every atom with the same derived `λ` name the `@atom` of the first file
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 56/100

objectionary/phino#1771 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
An XMIR round trip drops `@type` and `@args` of void attributes, so the EO printer writes `? > size` instead of `? > size /Q.number`
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 70/100

objectionary/phino#1770 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
The XMIR reader wraps an `@as` index above `Int`, so `as="α18446744073709551616"` is read as `α0`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/phino#1769 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
The XMIR reader takes any text as `Δ` data, so `hello` or `0a-0b` becomes a datum the 𝜑 parser rejects
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 72/100

objectionary/phino#1768 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`--sweet --output=latex` writes a string literal bare, so `?`, `->`, `Q` or an empty string in it breaks the `phiquation`
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 55/100

objectionary/phino#1767 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`atoms.xml` records `forma="A"` for an atom declared `/A`, so `Signatures` reports that it returns a type named `A`
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 53/100

objectionary/eo#9365 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`eo-inference/README.md` says the clues "compose in any order", while changing the order changes `provides.xml` and `links.xml`
Open
- Is something wrong?
Difficulty 1/5 Under an hour Newbie friendliness 86/100

objectionary/eo#9364 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`true.if a b` fills the picker voids of `false` too, so the census of each picker lists what only the other one got
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 45/100

objectionary/eo#9363 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`wrapper.made` puts the `wrapper` into the receiver census of `made`, so a read off the result lands on an attribute of the wrapper
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

objectionary/eo#9362 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`$` written as an object, like `$ > me` or `pick $`, gets no row in `links.xml`, so whatever reads it is unknown
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 68/100

objectionary/eo#9361 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
An application whose arguments are all bound by name, like `pick oak:x`, puts nothing into the voids, because `Xmirs.applications` keeps only `α` arguments
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 72/100

objectionary/eo#9360 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
Rule 4 of `eo-inference/README.md` is not applied: the `^` of an anonymous `[^]` formation stays a free void instead of its first dotted reader
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 55/100

objectionary/eo#9359 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`eo:inference` cannot dispatch into a package that has no formation of its own, so `Q.foo.oak.leaf` and every `+alias` into it stay unknown
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

objectionary/eo#9358 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`can-delete-a-symlink-to-a-directory` in `file/deleted.eo` drops the check that the link is gone, so it passes when the link stays
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 82/100

objectionary/eo#9357 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`can-delete-a-tmpfile-without-orphans` in `directory.eo` cannot fail, since its `seq` returns the literal `true`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 75/100

objectionary/eo#9356 · 1 comment · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`can-open-and-close-a-file-through-a-syscall` in `posix.eo` drops the result of `posix.close`, so it passes when `close` fails
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 85/100

objectionary/eo#9355 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`can-close-a-descriptor-when-the-scope-fails` in `file.eo` leaks only 300 descriptors, so it passes when `file.open` never closes them
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 72/100

objectionary/eo#9354 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`can-raise-negative-zero-to-odd-positive` in `power.eo` compares with `eq`, which treats `-0` and `0` as equal, so it passes when `power` loses the sign
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 84/100

objectionary/eo#9353 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`.rultor.yml` releases with `-Pobjectionary`, a profile that does not exist in any `pom.xml`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 76/100

objectionary/eo#9352 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`eo-maven-plugin-site.yml` fails on every release, because it installs only `eo-parser` while the plugin also needs `eo-cache`, `eo-inference`, `eo-lowering` and `eo-printer`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 85/100

objectionary/eo#9350 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`up.yml` opens pull requests titled "New version in README", because `env.version` is never set
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 84/100

objectionary/eo#9349 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`xs3p-tag.yml` never publishes `XMIR-<tag>.html`, so the link that `DrProgram` writes into every XMIR file is 404
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 78/100

objectionary/eo#9348 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
A `\u` in an object name breaks the Javadoc that `to-java.xsl` writes, so the class does not compile
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 74/100

objectionary/eo#9347 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
Tests named `can-split-a-b` and `can-split-a_b` produce two Java methods with the same name
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 75/100

objectionary/eo#9346 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
A top-level object bound to `$` or `^` is transpiled into Java that does not compile, like `Phi r = ;`
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 52/100

objectionary/eo#9345 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
A string literal longer than about 9300 bytes makes the generated Java fail with "code too large"
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 69/100

objectionary/eo#9344 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`to-java.xsl` names the variables of an application by appending the argument number, so an application with eleven arguments does not compile
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 74/100

objectionary/eo#9343 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`recursion-to-loop.xsl` treats any `.if` as `bool.if`, so a self-call passed to a user `if` makes the formation return the wrong value
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

objectionary/eo#9342 · Opened Oct 8, 2026

Maintainers usually reply within 1 day
`malloc.of` and `chunk.resized` throw a raw `OutOfMemoryError` for a large size, which `recovered` cannot catch
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 67/100

objectionary/eo#9340 · Opened Oct 8, 2026

Maintainers usually reply within 1 day

Showing the newest 100

This page lists what was indexed most recently. Advanced filter has the whole inventory, narrowed by language, difficulty and how long a task takes.

Open advanced filter

objectionary

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Is something wrong?

Showing the newest 100

Get new issues in your inbox