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-rw-r--r--src/evalvars.c4
-rw-r--r--src/testdir/test_filter_map.vim3
-rw-r--r--src/testdir/test_functions.vim4
-rw-r--r--src/version.c2
4 files changed, 12 insertions, 1 deletions
diff --git a/src/evalvars.c b/src/evalvars.c
index e6fb3d898..9e1a24d3f 100644
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -489,19 +489,21 @@ get_spellword(list_T *list, char_u **pp)
/*
* Prepare v: variable "idx" to be used.
- * Save the current typeval in "save_tv".
+ * Save the current typeval in "save_tv" and clear it.
* When not used yet add the variable to the v: hashtable.
*/
void
prepare_vimvar(int idx, typval_T *save_tv)
{
*save_tv = vimvars[idx].vv_tv;
+ vimvars[idx].vv_str = NULL; // don't free it now
if (vimvars[idx].vv_type == VAR_UNKNOWN)
hash_add(&vimvarht, vimvars[idx].vv_di.di_key);
}
/*
* Restore v: variable "idx" to typeval "save_tv".
+ * Note that the v: variable must have been cleared already.
* When no longer defined, remove the variable from the v: hashtable.
*/
void
diff --git a/src/testdir/test_filter_map.vim b/src/testdir/test_filter_map.vim
index 72a8d841e..e144538de 100644
--- a/src/testdir/test_filter_map.vim
+++ b/src/testdir/test_filter_map.vim
@@ -57,6 +57,9 @@ func Test_filter_map_nested()
let x = {"x":10}
let r = map(range(2), 'filter(copy(x), "1")')
call assert_equal([x, x], r)
+
+ let r = map(copy(x), 'filter(copy(x), "1")')
+ call assert_equal({"x": x}, r)
endfunc
" dict with funcref
diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index 6984c23cc..20718bcc0 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -1543,6 +1543,10 @@ func Test_readdir()
let files = readdir('Xdir', {x -> len(add(l, x)) == 2 ? -1 : 1})
call assert_equal(1, len(files))
+ " Nested readdir() must not crash
+ let files = readdir('Xdir', 'readdir("Xdir", "1") != []')
+ call sort(files)->assert_equal(['bar.txt', 'dir', 'foo.txt'])
+
eval 'Xdir'->delete('rf')
endfunc
diff --git a/src/version.c b/src/version.c
index f5c9eec87..5dbdc9fa4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1968,
+/**/
1967,
/**/
1966,