definline(clojure.core)

Macro

Experimental - like defmacro, except defines a named function whose body is the expansion, calls to which may be expanded inline as if it were a macro. Cannot be used with variadic (&) args.

; clojure/core.clj:3118
(defmacro definline
  [name & decl]
  (let [[pre-args [args expr]] (split-with (comp not vector?) decl)]
    `(do
       (defn ~name ~@pre-args ~args ~(apply (eval (list `fn args expr)) args))
       (alter-meta! (var ~name) assoc :inline (fn ~args ~expr))
       (var ~name))))

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