Patch 8.2.2537

[Bram Moolenaar]

Patch 8.2.2537
Problem: Vim9: crash when map() fails.
Solution: Clear typval before using it. (closes #7884)
Files: src/list.c, src/testdir/test_vim9_builtin.vim


*** ../vim-8.2.2536/src/list.c 2021-02-20 17:03:57.984112613 +0100
--- src/list.c 2021-02-21 16:00:26.124964080 +0100
***************
*** 2145,2150 ****
--- 2145,2151 ----
arg_errmsg, TRUE)))
break;
set_vim_var_string(VV_KEY, di->di_key, -1);
+ newtv.v_type = VAR_UNKNOWN;
r = filter_map_one(&di->di_tv, expr, filtermap,
&newtv, &rem);
clear_tv(get_vim_var_tv(VV_KEY));
*** ../vim-8.2.2536/src/testdir/test_vim9_builtin.vim 2021-02-10 22:23:36.398613504 +0100
--- src/testdir/test_vim9_builtin.vim 2021-02-21 16:10:37.638734254 +0100
***************
*** 690,695 ****
--- 690,716 ----
nunmap <F3>
enddef

+ def Test_map_failure()
+ CheckFeature job
+
+ var lines =<< trim END
+ vim9script
+ writefile([], 'Xtmpfile')
+ silent e Xtmpfile
+ var d = {[bufnr('%')]: {a: 0}}
+ au BufReadPost * Func()
+ def Func()
+ if d->has_key('')
+ endif
+ eval d[expand('<abuf>')]->mapnew((_, v: dict<job>) => 0)
+ enddef
+ e
+ END
+ CheckScriptFailure(lines, 'E1013:')
+ au! BufReadPost
+ delete('Xtmpfile')
+ enddef
+
def Test_max()
g:flag = true
var l1: list<number> = g:flag
*** ../vim-8.2.2536/src/version.c 2021-02-20 20:26:10.118866290 +0100
--- src/version.c 2021-02-21 16:12:42.606278173 +0100
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 2537,
/**/

--
In Africa some of the native tribes have a custom of beating the ground
with clubs and uttering spine chilling cries. Anthropologists call
this a form of primitive self-expression. In America we call it golf.

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///