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(ns typed.test
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  (:require [clojure.core.typed :refer [ann check-ns tc-ignore]])
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  (:import [clojure.lang IPersistentMap])
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  (:import [clojure.lang IPersistentMap]))
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(tc-ignore
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 (defrecord R [v]))
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(ann nop [(IPersistentMap Any Any) -> (IPersistentMap Any Any)])
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(defn nop [m] m)
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(ann r R)
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(def r (R. 1))
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(nop r)
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;; Running (check-ns) on this gives:
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;; AssertionError Assert failed: 16: Wrong number of arguments passed to polymorphic type:
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;; (All [a] (clojure.lang.IPersistentCollection a))[]
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;; (= (:nbound t) (count types))  clojure.core.typed/instantiate-poly (type_rep.clj:477)