No support for int-set!?

[narimiran]

(ns day99
  (:require
    [clojure.data.int-map :as i]))


(into (i/int-set) [1 2 3 4])

The problem appears for both i/int-set and i/dense-int-set. The i/int-map is not affected.

Trying to build the code above with Clerk produces:

{:via
 [{:type java.lang.AbstractMethodError,
   :message
   "Method clojure/data/int_map/PersistentIntSet.toArray()[Ljava/lang/Object; is abstract",
   :at
   [clojure.data.int_map.PersistentIntSet toArray "int_map.clj" -1]}],
 :trace
 [[clojure.data.int_map.PersistentIntSet toArray "int_map.clj" -1]
  [clojure.lang.RT toArray "RT.java" 1716]
  [clojure.core$to_array invokeStatic "core.clj" 346]
  [clojure.core$sort invokeStatic "core.clj" 3121]
  [clojure.core$sort invoke "core.clj" 3110]
  [nextjournal.clerk.viewer$ensure_sorted
   invokeStatic
   "viewer.cljc"
   1399]
  [nextjournal.clerk.viewer$ensure_sorted invoke "viewer.cljc" 1395]
  [nextjournal.clerk.viewer$present_PLUS_paginate_children
   invokeStatic
   "viewer.cljc"
   1626]
  [nextjournal.clerk.viewer$present_PLUS_paginate_children
   invoke
   "viewer.cljc"
   1608]
  [nextjournal.clerk.viewer$present_STAR_
   invokeStatic
   "viewer.cljc"
   1686]
  [nextjournal.clerk.viewer$present_STAR_ invoke "viewer.cljc" 1664]
  [nextjournal.clerk.viewer$present invokeStatic "viewer.cljc" 1769]
  [nextjournal.clerk.viewer$present invoke "viewer.cljc" 1761]
  [nextjournal.clerk.viewer$transform_result
   invokeStatic
   "viewer.cljc"
   542]
  [nextjournal.clerk.viewer$transform_result invoke "viewer.cljc" 526]
  [nextjournal.clerk.viewer$apply_viewers_STAR_
   invokeStatic
   "viewer.cljc"
   1461]
  [nextjournal.clerk.viewer$apply_viewers_STAR_
   invoke
   "viewer.cljc"
   1453]
  [nextjournal.clerk.viewer$present_STAR_
   invokeStatic
   "viewer.cljc"
   1671]
  [nextjournal.clerk.viewer$present_STAR_ invoke "viewer.cljc" 1664]
  [nextjournal.clerk.viewer$present_PLUS_paginate_children$fn__29814
   invoke
   "viewer.cljc"
   1624]
  [clojure.core$map_indexed$fn__8676$fn__8677 invoke "core.clj" 7490]
  [clojure.lang.PersistentVector reduce "PersistentVector.java" 418]
  [clojure.core$transduce invokeStatic "core.clj" 7025]
  [clojure.core$into invokeStatic "core.clj" 7042]
  [clojure.core$into invoke "core.clj" 7029]
  [nextjournal.clerk.viewer$present_PLUS_paginate_children
   invokeStatic
   "viewer.cljc"
   1622]
  [nextjournal.clerk.viewer$present_PLUS_paginate_children
   invoke
   "viewer.cljc"
   1608]
  [nextjournal.clerk.viewer$present_STAR_
   invokeStatic
   "viewer.cljc"
   1686]
  [nextjournal.clerk.viewer$present_STAR_ invoke "viewer.cljc" 1664]
  [nextjournal.clerk.viewer$present invokeStatic "viewer.cljc" 1769]
  [nextjournal.clerk.viewer$present invoke "viewer.cljc" 1761]
  [clojure.core$comp$fn__5895 invoke "core.clj" 2586]
  [clojure.core$map$fn__5950$fn__5951 invoke "core.clj" 2759]
  [clojure.core$preserving_reduced$fn__8890 invoke "core.clj" 7806]
  [clojure.lang.PersistentVector reduce "PersistentVector.java" 418]
  [clojure.core$reduce invokeStatic "core.clj" 6964]
  [clojure.core$cat$fn__8893 invoke "core.clj" 7817]
  [clojure.core$map$fn__5950$fn__5951 invoke "core.clj" 2759]
  [clojure.lang.PersistentVector reduce "PersistentVector.java" 418]
  [clojure.core$transduce invokeStatic "core.clj" 7025]
  [clojure.core$into invokeStatic "core.clj" 7042]
  [clojure.core$into invoke "core.clj" 7029]
  [clojure.core$partial$fn__5929 invoke "core.clj" 2648]
  [clojure.core$update invokeStatic "core.clj" 6259]
  [clojure.core$update invoke "core.clj" 6251]
  [nextjournal.clerk.viewer$process_blocks
   invokeStatic
   "viewer.cljc"
   1272]
  [nextjournal.clerk.viewer$process_blocks invoke "viewer.cljc" 1268]
  [clojure.core$partial$fn__5927 invoke "core.clj" 2641]
  [clojure.core$update invokeStatic "core.clj" 6259]
  [clojure.core$update invoke "core.clj" 6251]
  [nextjournal.clerk.viewer$fn__29713 invokeStatic "viewer.cljc" 1301]
  [nextjournal.clerk.viewer$fn__29713 invoke "viewer.cljc" 1299]
  [nextjournal.clerk.viewer$apply_viewers_STAR_
   invokeStatic
   "viewer.cljc"
   1461]
  [nextjournal.clerk.viewer$apply_viewers_STAR_
   invoke
   "viewer.cljc"
   1453]
  [nextjournal.clerk.viewer$present_STAR_
   invokeStatic
   "viewer.cljc"
   1671]
  [nextjournal.clerk.viewer$present_STAR_ invoke "viewer.cljc" 1664]
  [nextjournal.clerk.viewer$present invokeStatic "viewer.cljc" 1769]
  [nextjournal.clerk.viewer$present invoke "viewer.cljc" 1761]
  [nextjournal.clerk.view$doc__GT_viewer invokeStatic "view.clj" 13]
  [nextjournal.clerk.view$doc__GT_viewer invoke "view.clj" 9]
  [nextjournal.clerk.view$doc__GT_viewer invokeStatic "view.clj" 10]
  [nextjournal.clerk.view$doc__GT_viewer invoke "view.clj" 9]
  [nextjournal.clerk.webserver$present_PLUS_reset_BANG_
   invokeStatic
   "webserver.clj"
   144]
  [nextjournal.clerk.webserver$present_PLUS_reset_BANG_
   invoke
   "webserver.clj"
   143]
  [nextjournal.clerk.webserver$update_doc_BANG_
   invokeStatic
   "webserver.clj"
   157]
  [nextjournal.clerk.webserver$update_doc_BANG_
   invoke
   "webserver.clj"
   155]
  [nextjournal.clerk$show_BANG_ invokeStatic "clerk.clj" 76]
  [nextjournal.clerk$show_BANG_ invoke "clerk.clj" 22]
  [clojure.lang.Var invoke "Var.java" 390]
  [nextjournal.clerk.webserver$show_BANG_
   invokeStatic
   "webserver.clj"
   273]
  [nextjournal.clerk.webserver$show_BANG_ invoke "webserver.clj" 271]
  [nextjournal.clerk.webserver$serve_notebook$fn__32928
   invoke
   "webserver.clj"
   310]
  [nextjournal.clerk.webserver$serve_notebook
   invokeStatic
   "webserver.clj"
   310]
  [nextjournal.clerk.webserver$serve_notebook
   invoke
   "webserver.clj"
   294]
  [nextjournal.clerk.webserver$app invokeStatic "webserver.clj" 335]
  [nextjournal.clerk.webserver$app invoke "webserver.clj" 324]
  [clojure.lang.Var invoke "Var.java" 386]
  [org.httpkit.server$wrap_ring_websocket$ring_handler_STAR___32593
   invoke
   "server.clj"
   437]
  [org.httpkit.server.HttpHandler runSync "RingHandler.java" 144]
  [org.httpkit.server.HttpHandler run "RingHandler.java" 138]
  [java.util.concurrent.Executors$RunnableAdapter
   call
   "Executors.java"
   572]
  [java.util.concurrent.FutureTask run "FutureTask.java" 317]
  [java.lang.VirtualThread run "VirtualThread.java" 329]],
 :cause
 "Method clojure/data/int_map/PersistentIntSet.toArray()[Ljava/lang/Object; is abstract"}