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Clojure is dynamic functional programming language. NetKernel supports the Clojure language as a fully functioning Language Runtime.

The Clojure website describes it as:

Clojure is a dynamic programming language that targets the Java Virtual Machine (and the CLR ). It is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. Clojure is a compiled language - it compiles directly to JVM bytecode, yet remains completely dynamic. Every feature supported by Clojure is supported at runtime. Clojure provides easy access to the Java frameworks, with optional type hints and type inference, to ensure that calls to Java can avoid reflection.
Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy and a powerful macro system. Clojure is predominantly a functional programming language, and features a rich set of immutable, persistent data structures. When mutable state is needed, Clojure offers a software transactional memory system and reactive Agent system that ensure clean, correct, multithreaded designs.

Thanks to Tom Hicks for pioneering the NetKernel integration of Clojure.


Clojure is invoked with identifiers of the form active:clojure +operator@script.clj provided by the Clojure Runtime.


Unsure about importing of other source files.

Reloading the clojure module will cause memory leaks. (Reloading of changed source files should be ok!)