Add RT iter to babashka (#1781)

CHANGELOG.md

@@ -9,6 +9,9 @@ A preview of the next release can be installed from
 
 ## Unreleased
 
+- [#1761] For compatibility with [Sieppari](https://github.com/metosin/sieppari), added the following entry in `babashka.impl.classes/classes`:
+  - Support `support clojure.lang.RT/iter` calls
+
 - [#1760] For compatibility with [Fireworks v0.10.3](https://github.com/paintparty/fireworks), added the following to `:instance-checks` entry in `babashka.impl.classes/classes`([@paintparty](https://github.com/paintparty))
     - `clojure.lang.PersistentArrayMap$TransientArrayMap`
     - `clojure.lang.PersistentHashMap$TransientHashMap`

src/babashka/impl/classes.clj

@@ -128,6 +128,7 @@
     {:methods [{:name "aget"}
                {:name "aset"}
                {:name "aclone"}
+               {:name "iter"}
                ;; we expose this via the Compiler/LOADER dynamic var
                {:name "baseLoader"}]}
     clojure.lang.Compiler

test/babashka/interop_test.clj

@@ -186,3 +186,10 @@
                      (let [kp (keypair)
                            pk (.getPublic kp)]
                        (bytes? (.getEncoded pk))))))))
+
+;; RT iter test
+(deftest clojure-RT-iter-test
+  (is (= (iterator-seq (.iterator [1 2 3]))
+         (bb nil '(do (ns test
+                        (:import [clojure.lang RT]))
+                      (iterator-seq (clojure.lang.RT/iter [1 2 3])))))))