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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>io about</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="home.css">
<link rel="stylesheet" href="home_header.css">
<link rel="stylesheet" href="about.css">
<link rel="stylesheet" href="fonts/Helvetica/fonts.css">
<script type="module" src="js/KeyNav/KeyNav.js"></script>
<style>
</style>
</head>
<body>
<div class="container leftSpace">
<div class="header">
<div class="pageHeader">
<div class="topSpace"></div>
<div class="pageTitle"><a href="index.html">Io</a></div>
<div class="pageSubtitle"> / about </div>
</div>
</div>
<div class="text">
<div class="description">
Io is a programming language focused on expressiveness through simplicity.
<!--
Io is a highly dynamic prototype-based programming language.
The ideas in Io are mostly inspired by Smalltalk (objects, message passing), Self (prototype-based), NewtonScript (differential inheritance), Act1 (actors and futures), Lisp (code is a runtime inspectable / modifiable tree) and Lua (small, embeddable).
-->
</div>
<div class="items">
<!--
<div class="chunk">
<div class="chunkLeft">
focus
</div>
<div class="chunkRight">
expressiveness through simplicity
</div>
</div>
-->
<div class="chunk">
<div class="chunkLeft">
inspirations
</div>
<div class="chunkRight">
Self, Lua, Smalltalk, NewtonScript, Act1, LISP
</div>
</div>
<div class="chunk">
<div class="chunkLeft">
pure
</div>
<div class="chunkRight">
minimal syntax<br>
all values are objects<br>
prototype-based object model<br>
everything is a message, even assignment<br>
no keywords, no globals
</div>
</div>
<div class="chunk">
<div class="chunkLeft">
dynamic
</div>
<div class="chunkRight">
all messages are dynamic<br>
code is a runtime modifiable tree of messages<br>
arguments passed by expression, receiver controls eval<br>
differential inheritance<br>
become, transparent proxies, weak links
</div>
</div>
<div class="chunk">
<div class="chunkLeft">
concurrent
</div>
<div class="chunkRight">
coroutine based actors <br>
transparent futures <br>
automatic lock detection <br>
</div>
</div>
<!--
<div class="chunk">
<div class="chunkLeft">
accessible
</div>
<div class="chunkRight">
small<br>
open source
</div>
</div>
-->
<div class="chunk">
<div class="chunkLeft">
implementation
</div>
<div class="chunkRight">
small<br>
open source<br>
embeddable <br>
multi-state <br>
incremental collector <br>
</div>
</div>
</div>
<div class="items">
<div class="chunk">
<div class="chunkLeft" style="color: #999;">
status
</div>
<div class="chunkRight" style="color: #999;">
binaries maintained by Jake Jeck<br>
build system maintained by Ales Tsurko<br>
patches welcome
</div>
</div>
<div class="chunk">
<div class="chunkLeft" style="color: #999;">
history
</div>
<div class="chunkRight" style="color: #999;">
created in 2002<br>
actively developed until 2008<br>
</div>
</div>
<div class="chunk">
<div class="chunkLeft" style="color: #999;">
future
</div>
<div class="chunkRight" style="color: #999;">
WASM implementation? <br>
abstracted slots, hooks, notifications<br>
separation from C stack, continuations<br>
full set of value type primitives<br>
capabilities, persistence, snapshots<br>
transactions, durability<br>
mobile transparent actors<br>
default to utf8 strings/symbols<br>
cleanup true/false<br>
</div>
</div>
<br><br><br><br>
<!--
<div class="chunk">
<div class="chunkLeft" style="color: #999;">
implementation
</div>
<div class="chunkRight" style="color: #999;">
multi-state <br>
incremental collector <br>
weak links <br>
become <br>
transparent proxies
</div>
</div>
</div>
<br><br>
when became clear that maintaining a multi-platform build system and C implementation was too time consuming.
<br>
<a href="https://github.com/quag">Jonathan Wright</a>,
<a href="https://github.com/doublec">Chris Double</a>,
<a href="https://github.com/jeremytregunna">Jeremy Tregunna</a>, and
<a href="https://github.com/richcollins">Rich Collins</a>.
<br>
-->
<br>
</div>
</div>
</body>
</html>