[pp] Print short record names by default

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## master (unreleased)
 
 - [#359](https://github.com/clojure-emacs/orchard/pull/359): Print: protect printing from broken eductions.
+- [#360](https://github.com/clojure-emacs/orchard/pull/360): Pretty-print: print short record names by default.
 
 ## 0.37.0 (2025-09-19)
 

src/orchard/pp.clj

@@ -123,7 +123,9 @@
   prefix."
   [coll]
   (if (record? coll)
-    [(str "#" (.getName (class coll)) "{") coll]
+    [(str "#" (if print/*short-record-names*
+                (.getSimpleName (class coll))
+                (.getName (class coll))) "{") coll]
     ;; If all keys in the map share a namespace and *print-
     ;; namespace-maps* is true, print the map using map namespace
     ;; syntax (e.g. #:a{:b 1} instead of {:a/b 1}). If the map is

src/orchard/print.clj

@@ -59,6 +59,10 @@
   - print `::alias/foo` instead of `:ns.aliases.in.pov.ns/foo`"
   nil)
 
+(def ^:dynamic *short-record-names*
+  "When true, only simple record classnames will be displayed instead of FQNs."
+  true)
+
 (defn- print-coll-item
   "Print an item in the context of a collection. When printing a map, don't print
   `[]` characters around map entries."
@@ -171,7 +175,9 @@
 
 (defmethod print :record [x, ^Writer w]
   (.write w "#")
-  (.write w (.getSimpleName (class x)))
+  (.write w (if *short-record-names*
+              (.getSimpleName (class x))
+              (.getName (class x))))
   (print-map x w))
 
 (defmethod print :array [x, ^Writer w]

test/orchard/pp_test.clj

@@ -248,7 +248,7 @@
     "(1 1 1 1 1)" (java.util.ArrayList. ^java.util.Collection (repeat 5 1))
     "{:a 1, :b 2}" (let [^java.util.Map x {:a 1 :b 2}]
                      (java.util.HashMap. x))
-    "#orchard.print_test.TestRecord{:a 1, :b 2, :c 3, :d 4}" (orchard.print-test/->TestRecord 1 2 3 4)
+    "#TestRecord{:a 1, :b 2, :c 3, :d 4}" (orchard.print-test/->TestRecord 1 2 3 4)
     "[1 2 3 4]" (long-array [1 2 3 4])
     "[]" (long-array [])
     "[0 1 2 3 4]" (into-array Long (range 5))
@@ -281,3 +281,17 @@
   (testing "writer won't go much over total-length"
     (is (= 2003 (count (binding [print/*max-total-length* 2000]
                          (print/print-str orchard.print-test/infinite-map)))))))
+
+(deftest short-record-names-test
+  (testing "*short-record-names* controls how records are printed"
+    (is (= "#TestRecord{:a (0 1 2 3 4 5 6 7 8 9 10 11 12 13 14),
+            :b (0 1 2 3 4 5 6 7 8 9 10 11 12 13 14),
+            :c 3,
+            :d 4}"
+           (sut/pprint-str (orchard.print-test/->TestRecord (range 15) (range 15) 3 4))))
+    (binding [print/*short-record-names* false]
+      (is (= "#orchard.print_test.TestRecord{:a (0 1 2 3 4 5 6 7 8 9 10 11 12 13 14),
+                               :b (0 1 2 3 4 5 6 7 8 9 10 11 12 13 14),
+                               :c 3,
+                               :d 4}"
+             (sut/pprint-str (orchard.print-test/->TestRecord (range 15) (range 15) 3 4)))))))

test/orchard/print_test.clj

@@ -193,3 +193,10 @@
                                       (reduce f (range 10)))
                                     (coll-reduce [_ f init]
                                       (reduce f init (range 10)))))))))
+
+(deftest short-record-names-test
+  (testing "*short-record-names* controls how records are printed"
+    (is (= "#TestRecord{:a 1, :b 2, :c 3, :d 4}" (sut/print-str (->TestRecord 1 2 3 4))))
+    (binding [sut/*short-record-names* false]
+      (is (= "#orchard.print_test.TestRecord{:a 1, :b 2, :c 3, :d 4}"
+             (sut/print-str (->TestRecord 1 2 3 4)))))))