Optional typing in Clojure, as a library.
tldr; see the minimal example project for Typed Clojure[Script] setup.
Typed Clojure is separated into modules. You'll want the full type checker at development time, and the runtime dependencies in production.
In Clojure CLI's deps.edn, this will look something like this:
{:deps {org.typedclojure/typed.clj.runtime {:mvn/version "1.3.0"}}
:aliases {:dev {:extra-deps {org.typedclojure/typed.clj.checker {:mvn/version "1.3.0"}}}}}You can then start a dev repl with clj -A:dev.
In Leiningen's project.clj, it will look something like this:
(defproject com.my-domain/a-project "1.0.0-SNAPSHOT"
:dependencies [[org.typedclojure/typed.clj.runtime "1.3.0"]]
:profiles {:dev {:dependencies [[org.typedclojure/typed.clj.checker "1.3.0"]]}})Then, lein repl will automatically activate the :dev profile. Verify the type
checker is not included in uberjars with lein with-profile uberjar deps :tree.
For ClojureScript support, use org.typedclojure/typed.cljs.runtime and org.typedclojure/typed.cljs.checker.
- minimal demonstrates how to statically type check Clojure[Script] namespaces
- minimal-clj demonstrates how to statically type check (just) Clojure namespaces
- malli-type-providers demonstrates how to statically type check using malli schemas
- zero-deps demonstrates how to type check a library without introducing any runtime dependency on Typed Clojure (only dev-time).
- symbolic-guide shows how to reason about symbolic execution in Typed Clojure.
Latest stable release is 1.3.0.
See modules for specific version coordinates:
- typed.clj.checker: The JVM type checker
- typed.clj.runtime: JVM Runtime dependencies
- typed.clj.analyzer: Analyzer for JVM Clojure
- typed.malli: Malli integration.
- typed.cljs.analyzer: Analyzer for JS Clojure
- typed.cljs.checker: The JS type checker
- typed.cljs.runtime: Runtime dependencies
- typed.cljc.analyzer: Implementation-agnostic base for Clojure analyzers
- typed.lib.clojure: Base type annotations
- typed.lib.core.async: Annotations for core.async
- typed.lib.spec.alpha: Annotations for spec.alpha
Typed Clojure supports Clojure 1.12.3 and JDK 21+.
Use the core.typed mailing list for Typed Clojure discussion.
#core-typed on Clojurians Slack
See wiki.
core.async Rock-paper-scissors
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
- Tobias Kortkamp (t6)
- Alejandro Gomez (dialelo)
- Piotr Jarzemski (kazuhiro)
- Oleksandr Yakushev (alexander-yakushev)
- David Miller (dmiller)
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Copyright © Nicola Mometto, Rich Hickey & contributors.
Licensed under the EPL (see the file epl-v10.html).
Copyright © Nicola Mometto, Rich Hickey & contributors.
Licensed under the EPL (see the file epl-v10.html).
