* lisp/emacs-lisp/map.el: Avoid special casing lists.

(map-not-inplace, map-inplace): New errors.
(map-insert): New generic function.
(map-put!): Signal map-not-inplace rather than a generic 'error'.
(map-elt): Use map-not-inplace and map-insert to avoid hardcoding
a special case for lists.

* test/lisp/emacs-lisp/map-tests.el (test-map-put!): Rename from
test-map-put.  Also test the errors signaled.

1 files changed, 2 insertions, 1 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 327276eef9b..95647bbda4f 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -307,8 +307,9 @@ the node "(emacs) Directory Variables" of the user manual.
 ** map.el
 *** Now defined via generic functions that can be extended via cl-defmethod.
 *** Deprecate the 'map-put' macro in favor of a new 'map-put!' function.
-*** map-contains-key now returns a boolean rather than the key.
+*** 'map-contains-key' now returns a boolean rather than the key.
 *** Deprecate the 'testfn' args of 'map-elt' and 'map-contains-key'.
+*** New generic function 'map-insert'.
 
 ---
 ** Follow mode