2026-07-22 clj-kondo | Clojure Slack Archive

clj-kondo 2026-07-22

2026-07-22T17:46:43.127739Z

I’m playing with the new :key!, :select, etc in Clojure 1.13.0-alpha5, and I think I’ve found an issue with clj-kondo and :select. This is fine: (defn foo1 [{:keys [c & :d] :select select}] [select]) This gives a “clojure.lang.Keyword cannot be cast to clojure.lang.IPersistentMap” error: (defn foo2 [{:keys [c & :d] :select select}] select) This also gives that error: (defn foo3 [{:keys [c & :d] :select select}] {:select select})

2026-07-22T17:47:02.341069Z

Happy to create an issue if need be.

borkdude 2026-07-22T17:52:20.640989Z

Are you on the latest clojure-lsp nightly? I may have fixed this error but not sure, I'll peek back here later

2026-07-22T17:54:14.317789Z

Yes, but I also tried directly with a local clone of clj-kondo — at commit: 03bbe1fd Remove stray ctx argument in analyze-loop dissoc (#2914)

2026-07-22T17:55:36.987929Z

…running with clj -M:dev --lint <path-to-my-file>

seancorfield 2026-07-22T17:57:25.893879Z

@nomiskatz that error looks like a runtime Clojure error, not a static clj-kondo error. When exactly do you get that error?

2026-07-22T17:57:57.577909Z

Yes, a runtime Clojure error. Sorry, should have been clearer.

seancorfield 2026-07-22T17:58:11.487819Z

So... not clj-kondo?

2026-07-22T17:58:42.605879Z

Yes, clj-kondo. When I run clj-kondo it crashes.

seancorfield 2026-07-22T17:59:45.093889Z

Ah, okay, now I guess it is clear...

🙂 1

seancorfield 2026-07-22T18:03:05.898589Z

Confirmed. I cloned clj-kondo, add simon.clj at the root with Simon's code, ran lint on it per his command and got:

[[clojure.lang.RT dissoc "RT.java" 891]
   [clojure.core$dissoc invokeStatic "core.clj" 1526]
   [clojure.core$dissoc invokeStatic "core.clj" 1519]
   [clojure.core$dissoc doInvoke "core.clj" 1519]
   [clojure.lang.RestFn invoke "RestFn.java" 490]
   [clj_kondo.impl.types.utils$strip_positions$fn__4684
    invoke
    "utils.clj"
    282]
   [clojure.core$update_vals$fn__8943 invoke "core.clj" 8018]
   [clojure.lang.PersistentArrayMap
    kvreduce
    "PersistentArrayMap.java"
    429]
   [clojure.core$fn__8525 invokeStatic "core.clj" 6909]
   [clojure.core$fn__8525 invoke "core.clj" 6889]
   [clojure.core.protocols$fn__8257$G__8252__8266
    invoke
    "protocols.clj"
    175]
   [clojure.core$reduce_kv invokeStatic "core.clj" 6920]
   [clojure.core$update_vals invokeStatic "core.clj" 8019]
   [clojure.core$update_vals invoke "core.clj" 8009]
   [clojure.core$update invokeStatic "core.clj" 6234]
   [clojure.core$update invoke "core.clj" 6224]
   [clj_kondo.impl.types.utils$strip_positions
    invokeStatic
    "utils.clj"
    280]
   [clj_kondo.impl.types.utils$strip_positions invoke "utils.clj" 273]
   [clj_kondo.impl.types$resolve_arity invokeStatic "types.clj" 893]
   [clj_kondo.impl.types$resolve_arity invoke "types.clj" 882]
   [clj_kondo.impl.types$resolve_types$fn__5023$fn__5024
    invoke
    "types.clj"
    925]
   [clojure.lang.PersistentArrayMap
    kvreduce
    "PersistentArrayMap.java"
    429]
   [clojure.core$fn__8525 invokeStatic "core.clj" 6909]

seancorfield 2026-07-22T18:03:22.780719Z

(plus a bunch more in the stacktrace 🙂 )

🙏 1

seancorfield 2026-07-22T18:04:52.669899Z

(and (map? t) (:val t))
        (update t :val update-vals
                (fn [e]
                  (let [e (dissoc e :row :col :end-row :end-col)]
                    (if (:tag e)
                      (update e :tag strip-positions)
                      e))))

I guess (:val t) is not a map here.

borkdude 2026-07-22T18:51:17.883329Z

Issue fixed on clj-kondo master

2026-07-22T18:53:36.600109Z

Thanks — I confirm all is good now.

borkdude 2026-07-22T18:54:02.552729Z

you're running from git/JVM?

2026-07-22T18:55:03.664589Z

Checking using a local clone, running with clj -M:dev --lint <path-to-my-file> But usually from clojure-lsp.

borkdude 2026-07-22T18:55:23.335229Z

ah yes that works too. I personally run clojure-lsp + clj-kondo from local git repos in a JVM

borkdude 2026-07-22T18:55:36.412849Z

so I wondered if you did that since you tested it so fast :)

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clj-kondo 2026-07-22