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The functions clojure.walk/keywordize-keys and stringify-keys do not respect Records. When called on a data structure, any Records in the data structure will be transformed into plain maps.

E.G.,

user> (defrecord X [a])
user.X

user> (assoc (X. 1) "thing" 2)
#user.X{:a 1, "thing" 2}

user> (clojure.walk/keywordize-keys (assoc (X. 1) "thing" 2))
{:a 1, :thing 2}

user> (type (clojure.walk/keywordize-keys (assoc (X. 1) "thing" 2)))
clojure.lang.PersistentArrayMap

2 Answers

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Comment made by: alexmiller

The proposed patch seems like it has other consequences for non-records. For example, sorted maps would retain their sortedness whereas they do not currently. That may or may not be desirable, but it's certainly a much broader change in behavior than that implied by the ticket.

Does the change in stringify-keys even work? Doesn't seem like it when eyeballing it and causes test failures when applied.

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Reference: https://clojure.atlassian.net/browse/CLJ-2505 (reported by andrewmcveigh)
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