hy/tests/native_tests/contrib/walk.hy

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(import [hy.contrib.walk [*]])
(def walk-form '(print {"foo" "bar"
"array" [1 2 3 [4]]
"something" (+ 1 2 3 4)
"cons!" (cons 1 2)
"quoted?" '(foo)}))
(defn collector [acc x]
(.append acc x)
nil)
(defn test-walk-identity []
(assert (= (walk identity identity walk-form)
walk-form)))
(defn test-walk []
(let [[acc '()]]
(assert (= (walk (partial collector acc) identity walk-form)
[nil nil]))
(assert (= acc walk-form)))
(let [[acc []]]
(assert (= (walk identity (partial collector acc) walk-form)
nil))
(assert (= acc [walk-form]))))
(defn test-walk-iterators []
(let [[acc []]]
(assert (= (walk (fn [x] (* 2 x)) (fn [x] x)
(drop 1 [1 [2 [3 [4]]]]))
[[2 [3 [4]] 2 [3 [4]]]]))))
(defn test-macroexpand-all []
(assert (= (macroexpand-all '(with [a b c] (for [d c] foo)))
'(with* [a] (with* [b] (with* [c] (do (for* [d c] foo))))))))