CLJS-269 (rest ()) returns nil

clojure · May 25, 2012 · 0a26ec0 · 0a26ec0
1 parent 44d4c78
commit 0a26ec0
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diff --git a/src/cljs/cljs/core.cljs b/src/cljs/cljs/core.cljs
@@ -1451,7 +1451,7 @@ reduces them without incurring seq initialization"
 
   ISeq
   (-first [coll] nil)
-  (-rest [coll] nil)
+  (-rest [coll] ())
 
   IStack
   (-peek [coll] nil)

diff --git a/test/cljs/cljs/core_test.cljs b/test/cljs/cljs/core_test.cljs
@@ -204,6 +204,7 @@
   (assert (= [3 2 1] (seq (array 3 2 1))))
   (assert (= 9 (reduce + (next (seq (array 1 2 3 4))))))
   (assert (= () (rest nil)))
+  (assert (= () (rest ())))
   (assert (= () (rest [1])))
   (assert (= () (rest (array 1))))
   (assert (= {"x" "y"} (meta ^{"x" "y"} [])))