patch 8.2.2804: setting buffer local mapping with mapset() changes global
Problem: Setting buffer local mapping with mapset() changes global mapping.
Solution: Only set the local mapping. (closes #8143)
diff --git a/src/testdir/test_maparg.vim b/src/testdir/test_maparg.vim
index d0f2ec2..4cd32a5 100644
--- a/src/testdir/test_maparg.vim
+++ b/src/testdir/test_maparg.vim
@@ -254,6 +254,27 @@
endif
endfunc
+func Test_map_local()
+ nmap a global
+ nmap <buffer>a local
+
+ let prev_map_list = split(execute('nmap a'), "\n")
+ call assert_match('n\s*a\s*@local', prev_map_list[0])
+ call assert_match('n\s*a\s*global', prev_map_list[1])
+
+ let mapping = maparg('a', 'n', 0, 1)
+ call assert_equal(1, mapping.buffer)
+ let mapping.rhs = 'new_local'
+ call mapset('n', 0, mapping)
+
+ " Check that the global mapping is left untouched.
+ let map_list = split(execute('nmap a'), "\n")
+ call assert_match('n\s*a\s*@new_local', map_list[0])
+ call assert_match('n\s*a\s*global', map_list[1])
+
+ nunmap a
+endfunc
+
func Test_map_restore()
" Test restoring map with alternate keycode
nmap <C-B> back