Gradual typing in Clojure, as a library.

Latest stable release is 0.3.0-alpha2.

Leiningen dependency information:

[org.clojure/core.typed "0.3.0-alpha2"]

...
; for very recent releases
:repositories {"sonatype-oss-public" "https://oss.sonatype.org/content/groups/public/"}

; for slim jars, follow version string with: :classifier "slim"

Maven dependency information:

<dependency>
  <groupId>org.clojure</groupId>
  <artifactId>core.typed</artifactId>
  <version>0.3.0-alpha2</version>
  <!-- slim jar -->
  <!-- <classifier>slim</classifier> -->
</dependency>

The default jars contain AOT files for faster loading. If jar size is a concern, consider using the slim jar in production.

core.typed supports Clojure 1.6.0 and JDK 1.7+.

Video

Use the core.typed mailing list for core.typed discussion, or try #typed-clojure on Freenode (the main developer is ambrosebs).

IRC Logs (Thanks to Anthony Grimes!)

See wiki.

API Reference

Ambrose's blog

lein-typed

vim-typedclojure

(clojure.core.typed/ann v t) gives var v the static type t.

(clojure.core.typed/ann-form f t) ensures form f is of the static type t.

(clojure.core.typed/check-ns) type checks the current namespace.

(clojure.core.typed/cf t) type checks the form t.

core.async Rock-paper-scissors

• GitHub Project
• Bug Tracker
• Continuous Integration
• Compatibility Test Matrix

Thanks to the following people for contributing to core.typed:

• Stephen Compall (S11001001)
• Andrew Brehaut (brehaut)
• Christopher Spencer (cspencer)
• Reid McKenzie (arrdem)
• Di Xu (xudifsd)
• Nicola Mometto (Bronsa)
• Chas Emerick (cemerick)
• Jake Goulding (shepmaster)
• Andy Fingerhut
• Aravind K N (arav93)
• Allen Rohner (arohner)
• Minori Yamashita (ympbyc)
• Kyle Kingsbury (aphyr)
• Nathan Sorenson

Development is sponsored (via crowdfunding) by

Shannon Severance

YourKit is kindly supporting core.typed and other open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products:

• YourKit Java Profiler and
• YourKit .NET Profiler.

Copyright © Ambrose Bonnaire-Sergeant, Rich Hickey & contributors.

Licensed under the EPL (see the file epl.html).