Comments (2)
borkdude
commented on June 15, 2024
1
This is not a babashka-specific issue, this happens with JVM Clojure too:
$ clj -M ~/dev/scratch/dude.clj
Execution error (StackOverflowError) at (REPL:1).
null
Full report at:
/var/folders/j9/xmjlcym958b1fr0npsp9msvh0000gn/T/clojure-3220081919510037302.edn
It has to do with laziness. If you make your program strict, this won't happen:
(ns dude
(:require [clojure.set :as set]))
(defn reduce-rows
([] nil)
([row1 row2]
(mapv (fn [kv1 kv2]
(if (set? kv1)
(set/union kv1 #{kv2})
(hash-set kv1 kv2)))
row1 row2)))
(->> (take 100000 (repeat {:a 1 :b 2 :c "Hello world!"}))
(reduce reduce-rows)
count
println)
It prints 3 in both JVM Clojure and bb.
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ralcantaraperez
commented on June 15, 2024
Thank you very much for your quick response.
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