Patch 8.2.4847
Problem:    Crash when using uninitialized function pointer.
Solution:   Check for NULL pointer. (closes #10319, closes #10319)
Files:      src/eval.c, src/testdir/test_vim9_script.vim


*** ../vim-8.2.4846/src/eval.c  2022-04-24 21:54:56.061612118 +0100
--- src/eval.c  2022-04-29 21:05:26.125852684 +0100
***************
*** 5314,5320 ****
  
                if (echo_style)
                {
!                   r = make_ufunc_name_readable(tv->vval.v_string,
                                                       buf, MAX_FUNC_NAME_LEN);
                    if (r == buf)
                    {
--- 5314,5321 ----
  
                if (echo_style)
                {
!                   r = tv->vval.v_string == NULL ? (char_u *)"function()"
!                                 : make_ufunc_name_readable(tv->vval.v_string,
                                                       buf, MAX_FUNC_NAME_LEN);
                    if (r == buf)
                    {
*** ../vim-8.2.4846/src/testdir/test_vim9_script.vim    2022-04-27 
22:15:35.992839061 +0100
--- src/testdir/test_vim9_script.vim    2022-04-29 21:06:09.441800074 +0100
***************
*** 4115,4120 ****
--- 4115,4152 ----
    delete('XTest_misplaced_type')
  enddef
  
+ " Ensure echo doesn't crash when stringifying empty variables.
+ def Test_echo_uninit_variables()
+   var res: string
+ 
+   var var_bool: bool
+   var var_num: number
+   var var_float: float
+   var Var_func: func
+   var var_string: string
+   var var_blob: blob
+   var var_job: job
+   var var_channel: channel
+   var var_list: list<any>
+   var var_dict: dict<any>
+ 
+   redir => res
+   echo var_bool
+   echo var_num
+   echo var_float
+   echo Var_func
+   echo var_string
+   echo var_blob
+   echo var_job
+   echo var_channel
+   echo var_list
+   echo var_dict
+   redir END
+ 
+   assert_equal(['false', '0', '0.0', 'function()', '', '0z', 'no process',
+     'channel fail', '[]', '{}'], res->split('\n'))
+ enddef
+ 
  " Keep this last, it messes up highlighting.
  def Test_substitute_cmd()
    new
*** ../vim-8.2.4846/src/version.c       2022-04-29 16:43:56.219178196 +0100
--- src/version.c       2022-04-29 20:41:53.235936844 +0100
***************
*** 748,749 ****
--- 748,751 ----
  {   /* Add new patch number below this line */
+ /**/
+     4847,
  /**/

-- 
How many light bulbs does it take to change a person?

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///                                                                      \\\
\\\        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///

-- 
-- 
You received this message from the "vim_dev" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

--- 
You received this message because you are subscribed to the Google Groups 
"vim_dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/vim_dev/20220429201615.831B51C0255%40moolenaar.net.

Raspunde prin e-mail lui