CODEWITHSUNDEEP
clojureclojurescript
bryanwoods
bryanwoods

Reputation: 195

Resolve function throws an error in ClojureScript but not Clojure

The following program works as I expected in Clojure, but throws an error in ClojureScript. I'm wondering if this is a bug or the feature simply isn't available in ClojureScript or if I need to rethink the way I'm attempting to do this instead. Thanks a lot for the help in advance.

; Clojure...
(defn foo [x] x)
(defn foobee [x] (str (foo x) "bee"))

(println
  ((resolve (symbol (str "foo" "bee"))) "bizzee"))

;=> bizzeebee

; ClojureScript...
(defn foo [x] x)
(defn foobee [x] (str (foo x) "bee"))

(.log js/console
  ((resolve (symbol (str "foo" "bee"))) "bizzee"))

;=> Exception in thread "main" java.lang.IllegalArgumentException: Don't know how to create ISeq from: clojure.lang.Symbol

Upvotes: 11

Views: 2179

Answers (1)

Michał Marczyk
Michał Marczyk

Reputation: 84341

resolve doesn't exist in ClojureScript. In fact, ClojureScript does not have Vars.

Calling a function whose name is constructed dynamically is possible through various hacks (like using aget with the namespace object), which are however guaranteed to break with advanced compilation unless all the relevant symbols are exported. Also, currently none enjoy official support even with the more permissive compilation settings.

Upvotes: 15

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