From ef8039caccb821e983c539647f59a7f4517cdca3 Mon Sep 17 00:00:00 2001
From: Nathan Marz <nathan@nathanmarz.com>
Date: Wed, 15 Jun 2016 11:41:12 -0400
Subject: [PATCH] error if pathed fn used where navigator expected

---
 src/clj/com/rpl/specter/impl.cljx | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/clj/com/rpl/specter/impl.cljx b/src/clj/com/rpl/specter/impl.cljx
index ab9bd38..8a9055d 100644
--- a/src/clj/com/rpl/specter/impl.cljx
+++ b/src/clj/com/rpl/specter/impl.cljx
@@ -1246,9 +1246,17 @@
       (instance? VarUse p)
       (let [v (:var p)
             vv (:val p)]
-        (cond (-> v meta :dynamic) (magic-fail! "Var " (:sym p) " is dynamic")
-              (valid-navigator? vv) vv
-              :else (magic-fail! "Var " (:sym p) " is not a navigator")
+        (cond (-> v meta :dynamic)
+              (magic-fail! "Var " (:sym p) " is dynamic")
+
+              (and (fn? vv) (-> v meta :pathedfn))
+              (throw-illegal "Cannot use pathed fn '" (:sym p) "' where navigator expected")
+
+              (valid-navigator? vv)
+              vv
+
+              :else
+              (magic-fail! "Var " (:sym p) " is not a navigator")
               ))
 
       (instance? SpecialFormUse p)