clojure: how to list all names reachable in current namespace?

Question

According to docs dir lists only "public" vars. Indeed, it does not show itself, and may not be available in current namespace:

user=> (dir user)
nil
user=> 
user=> 
user=> (in-ns 'foo)
#<Namespace foo>
foo=> 
foo=> 
foo=> (dir foo)
CompilerException java.lang.RuntimeException: Unable to resolve symbol: dir in this context, compiling:(NO_SOURCE_PATH:17)

What other (non-public) types of names/vars exist? (These are probably Java types?) How to list these non-public names? How are they imported into the namespace (or into some "default case" namespaces) on the startup? How default namespaces are searched through in runtime?

For instance in Python: dir() lists everything in current namespace, if a referenced variable is not found it is checked among dir(__builtins__).

Possible duplicate of [How to list the functions of a namespace?](https://stackoverflow.com/questions/2747294/how-to-list-the-functions-of-a-namespace) — Felipe Augusto, Sep 27 '18 at 18:11

score 8 · Answer 1 · edited May 23 '17 at 12:32

This question was already answered here. You could list all public vars in a namespace using:

(keys (ns-publics 'foo))

There also is a dir function like python does, so you could do:

 (clojure.repl/dir foo)

EDIT

If you really want to see the privates as well, you could do:

(defn ns-all-vars[n]
   (filter (fn[[_ v]]
             (and (instance? clojure.lang.Var v)
                  (= n (.getName (.ns v)))))
      (ns-map n)))

and then simply call

(println (map first (ns-all-vars 'foo)))

To print all symbols in 'foo namespace.

clojure: how to list all names reachable in current namespace?

1 Answers1