clojurescript reader/read-string returns null

Question

I upgraded the clojurescript version of a working application to 0.0-2030 and suddenly reader/read-string returns null, e.g:

(js/alert (str "reader returned ["  (reader/read-string "{1 2}") "]"))

shows []. I compile with the cljsbuild plugin:

 :cljsbuild {:builds [{:source-paths ["src/cljs/main"],
                    :compiler {:pretty-print true,
                               :output-to "resources/public/cljs/main.js",
                               :optimizations :whitespace}}

reeader is defined like this:

(:require           
    [cljs.reader :as reader]

What can I be doing wrong?

tangrammer · Accepted Answer · 2013-11-18 13:15:23Z

2

I've tried to setup a single clojurescript project following the minimal instructions detailed here: http://swannodette.github.io/2013/10/27/the-essence-of-clojurescript/

This project also uses the same clojurescript version

:dependencies [[org.clojure/clojure "1.5.1"]
                 [org.clojure/clojurescript "0.0-2030"]]

And this is the code I used into:

(ns hello-world.core
    (:require [cljs.reader :as reader]))

(js/alert (str "reader returned ["  (reader/read-string "{1 2}") "]"))

And works fine!

answered Nov 18, 2013 at 13:15

tangrammer

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4 Comments

Assen Kolov Over a year ago

Sure. I work on this project for months and this part always worked fine. Until today, when I upgraded. So I wonder what can have gone wrong. I am not going to setup a new project, I have the fix the one I already have.

jbm Over a year ago

@Assen, have you tried doing lein cljsbuild clean? You may have old compiled files laying around.

Assen Kolov Over a year ago

@jbm, thanks, thanks a lot, as embarrassed I am that I didn't try this before posting. Issue solved.

tangrammer Over a year ago

my response is related to demonstrate that the clojurescript version and reader function works, then you have to try lein clean and lein cljs build clean as @Assen says and I was going to propose

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