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Fix #44 (destructuring-pair? mistake)

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Imre Kószó 2022-07-31 14:16:33 +02:00
parent 62375212a8
commit 150a5712de
2 changed files with 19 additions and 4 deletions
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6
src/net/cgrand/xforms.cljc
View file

@ -28,8 +28,10 @@
(unreduced-> (-> x# ~expr) ~@exprs)))))
(defn- pair? [x] (and (vector? x) (= 2 (core/count x))))
(defn- destructuring-pair? [x]
(and (pair? x) (not (or (keyword? x) (= '& x)))))
(let [kw-or-& #(or (keyword? %) (= '& %))]
(defn- destructuring-pair? [x]
(and (pair? x)
(not (kw-or-& (first x))))))
(defmacro for
"Like clojure.core/for with the first expression being replaced by % (or _). Returns a transducer.

15
test/net/cgrand/xforms_test.cljc
View file

@ -1,5 +1,5 @@
(ns net.cgrand.xforms-test
(:require [clojure.test :refer [is deftest testing]]
(:require [clojure.test :refer [are is deftest testing]]
[net.cgrand.xforms :as x]))
(defn trial
@ -140,3 +140,16 @@
(is (= (reverse (range 100)) (x/into [] (x/sort >) (shuffle (range 100)))))
(is (= (sort-by str (range 100)) (x/into [] (x/sort-by str) (shuffle (range 100)))))
(is (= (sort-by str (comp - compare) (range 100)) (x/into [] (x/sort-by str (comp - compare)) (shuffle (range 100))))))
(deftest destructuring-pair?
(let [destructuring-pair? #'x/destructuring-pair?]
(are [candidate expected]
(= expected (destructuring-pair? candidate))
'[a b] true
'[a b c] false
'[& foo] false
'[:as foo] false
1 false
'(a b) false
'{foo bar} false
'{foo :bar} false)))