Clojure

print-dup is broken for some clojure collections

Details

  • Type: Defect Defect
  • Status: Open Open
  • Priority: Minor Minor
  • Resolution: Unresolved
  • Affects Version/s: None
  • Fix Version/s: None
  • Component/s: None
  • Labels:
  • Approval:
    Triaged

Description

user=> (print-dup (sorted-set 1) *out*)
#=(clojure.lang.PersistentTreeSet/create [1])nil
user=> (read-string (with-out-str (print-dup (sorted-set 1) *out*)))
ClassCastException Cannot cast clojure.lang.PersistentVector to clojure.lang.ISeq  java.lang.Class.cast (Class.java:3258)
user=> (print-dup (subvec [1] 0) *out*)
#=(clojure.lang.APersistentVector$SubVector/create [1])nil
user=> (read-string (with-out-str (print-dup (subvec [1] 0) *out*)))
IllegalArgumentException No matching method found: create  clojure.lang.Reflector.invokeMatchingMethod (Reflector.java:53)

print-dup assumes all IPersistentCollections not defined via defrecord have a static /create method that take an IPersistentCollection, but this is not true for many clojure collections

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Dates

  • Created:
    Updated: