diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/nvim/tag.c | 11 | ||||
| -rw-r--r-- | src/nvim/testdir/test_tagfunc.vim | 13 |
2 files changed, 24 insertions, 0 deletions
diff --git a/src/nvim/tag.c b/src/nvim/tag.c index 5216919d98..16d6629c2e 100644 --- a/src/nvim/tag.c +++ b/src/nvim/tag.c @@ -106,6 +106,8 @@ static char_u *recurmsg = (char_u *)N_("E986: cannot modify the tag stack within tagfunc"); static char_u *tfu_inv_ret_msg = (char_u *)N_("E987: invalid return value from tagfunc"); +static char e_window_unexpectedly_close_while_searching_for_tags[] + = N_("E1299: Window unexpectedly closed while searching for tags"); static char *tagmatchname = NULL; // name of last used tag @@ -501,6 +503,15 @@ void do_tag(char *tag, int type, int count, int forceit, int verbose) // found: all matches found. } + // A tag function may do anything, which may cause various + // information to become invalid. At least check for the tagstack + // to still be the same. + if (tagstack != curwin->w_tagstack) { + emsg(_(e_window_unexpectedly_close_while_searching_for_tags)); + FreeWild(new_num_matches, new_matches); + break; + } + // If there already were some matches for the same name, move them // to the start. Avoids that the order changes when using // ":tnext" and jumping to another file. diff --git a/src/nvim/testdir/test_tagfunc.vim b/src/nvim/testdir/test_tagfunc.vim index ad761f1b23..8690e30e77 100644 --- a/src/nvim/testdir/test_tagfunc.vim +++ b/src/nvim/testdir/test_tagfunc.vim @@ -285,4 +285,17 @@ func Test_tagfunc_wipes_buffer() set tagfunc= endfunc +func Test_tagfunc_closes_window() + split any + func MytagfuncClose(pat, flags, info) + close + return [{'name' : 'mytag', 'filename' : 'Xtest', 'cmd' : '1'}] + endfunc + set tagfunc=MytagfuncClose + call assert_fails('tag xyz', 'E1299:') + + set tagfunc= +endfunc + + " vim: shiftwidth=2 sts=2 expandtab |