Yup, it is a known issue. See http://dev.clojure.org/jira/browse/CLJS-1954.
On Friday, March 3, 2017 at 2:44:52 PM UTC-8, Chad Harrington wrote:
>
> I believe that cljs versions 1.9.493 and above break core.async (and
> possibly other libraries) under :advanced optimizations.
>
> Here is a minimal reproduction:
> In src/ca_adv_bug/core.cljs:
>
> (ns ca-adv-bug.core
> (:require
> [cljs.core.async :as ca]
> [cljs.nodejs :as nodejs])
> (:require-macros
> [cljs.core.async.macros :refer [go]]))
>
> (nodejs/enable-util-print!)
>
> (defn -main [& args]
> (go
> (println "Hello world!")))
>
> (set! *main-cli-fn* -main)
>
>
> In build.clj:
>
> (require 'cljs.build.api)
>
> (cljs.build.api/build
> "src"
> {:optimizations :advanced
> :target :nodejs
> :main 'ca-adv-bug.core
> :output-to "main.js"})
>
>
> In the current directory, I have two versions of the standalone cljs jar,
> named with their versions, as well as the latest core.async jar. I pulled
> them from
> https://github.com/clojure/clojurescript/releases/download/r1.9.473/cljs.jar
> and
> https://github.com/clojure/clojurescript/releases/download/r1.9.493/cljs.jar
> .
>
> First, with cljs v1.9.473:
>
> ~/src/test-ca $ java -cp cljs-1.9.473.jar:core.async-0.3.441.jar:src
> clojure.main build.clj
>
> ~/src/test-ca $ node main.js
>
> Hello world!
>
> Now with cljs v1.9.493:
>
> ~/src/test-ca $ java -cp cljs-1.9.493.jar:core.async-0.3.441.jar:src
> clojure.main build.clj
>
> Mar 03, 2017 3:39:53 PM com.google.javascript.jscomp.LoggerErrorManager
> println
>
> SEVERE: /Users/chad/src/test-ca/out/cljs/core/async.js:1426: ERROR - Parse
> error. No newline allowed before '=>'
>
> var inst_6822 = async(inst_6821);
>
> ^
>
>
> Mar 03, 2017 3:39:53 PM com.google.javascript.jscomp.LoggerErrorManager
> printSummary
>
> WARNING: 1 error(s), 0 warning(s)
>
> ERROR: JSC_PARSE_ERROR. Parse error. No newline allowed before '=>' at
> /Users/chad/src/test-ca/out/cljs/core/async.js line 1426 : 32
>
>
> Can others reproduce this? This issue is blocking us from using the latest
> cljs, as we rely on core.async and :advanced optimizations.
>
> Thank you for your efforts,
>
> Chad Harrington
> chad.ha...@gmail.com <javascript:>
> ch...@farbetter.com <javascript:>
>
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