madlisp/mad/dump.mad

;;
;; Tools for dumping code from memory into files.
;;
;; Example usage:
;; > (dumpEnv (env) "funcs.mad")
;;
;; This will write all function definitions from the current environment into file "funcs.mad".
;;

;; Return the string for defining the given function
(defn funcToStr (f name)
  (str (if (macro? f) "(defmacro " "(defn ")
    name " " (prints (meta f "args")) " "
    (prints (meta f "body")) ")"))

;; Write a hash-map of functions into a file
(defn dumpFuncs (funcs filename)
  (let (fnStrings (map2 (fn (f name) (funcToStr f name)) (values funcs) (keys funcs)))
    (fput filename (apply join (str EOL EOL) fnStrings))))

;; Write all functions in the given environment to file
(defn dumpEnv (e filename)
  (dumpFuncs (filterh fn? e) filename))