Mercurial > vim
view runtime/bugreport.vim @ 33090:461541d860ac v9.0.1830
patch 9.0.1830: Vim9: crash when accessing a null object
Commit: https://github.com/vim/vim/commit/d7085a06358c22250a27186bb7d52112ed4addd1
Author: Gianmaria Bajo <mg1979.git@gmail.com>
Date: Thu Aug 31 18:15:26 2023 +0200
patch 9.0.1830: Vim9: crash when accessing a null object
Problem: Vim9: crash when accessing a null object
Solution: Check accessing a NULL object in def function
An object is NULL when the variable is declared, but the constructor
isn't called. Accessing/setting a member on the object crashed Vim.
Note: this happens inside def functions, at script level things work
differently. Accessing a NULL object member results in E1360
(correctly), while setting a value on it results in E1012 (type
mismatch) so there's still something to fix.
closes: #12973
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Gianmaria Bajo <mg1979.git@gmail.com>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Thu, 31 Aug 2023 18:30:03 +0200 |
| parents | 4027cefc2aab |
| children |
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:" Use this script to create the file "bugreport.txt", which contains :" information about the environment of a possible bug in Vim. :" :" Maintainer: The Vim Project <https://github.com/vim/vim> :" Last change: 2023 Aug 10 :" Former Maintainer: Bram Moolenaar <Bram@vim.org> :" :" To use inside Vim: :" :so $VIMRUNTIME/bugreport.vim :" Or, from the command line: :" vim -s $VIMRUNTIME/bugreport.vim :" :" The "if 1" lines are to avoid error messages when expression evaluation is :" not compiled in. :" :if 1 : let more_save = &more :endif :set nomore :if has("unix") : !echo "uname -a" >bugreport.txt : !uname -a >>bugreport.txt :endif :redir >>bugreport.txt :version :if 1 : func <SID>CheckDir(n) : if isdirectory(a:n) : echo 'directory "' . a:n . '" exists' : else : echo 'directory "' . a:n . '" does NOT exist' : endif : endfun : func <SID>CheckFile(n) : if filereadable(a:n) : echo '"' . a:n . '" is readable' : else : echo '"' . a:n . '" is NOT readable' : endif : endfun : echo "--- Directories and Files ---" : echo '$VIM = "' . $VIM . '"' : call <SID>CheckDir($VIM) : echo '$VIMRUNTIME = "' . $VIMRUNTIME . '"' : call <SID>CheckDir($VIMRUNTIME) : call <SID>CheckFile(&helpfile) : call <SID>CheckFile(fnamemodify(&helpfile, ":h") . "/tags") : call <SID>CheckFile($VIMRUNTIME . "/menu.vim") : call <SID>CheckFile($VIMRUNTIME . "/filetype.vim") : call <SID>CheckFile($VIMRUNTIME . "/syntax/synload.vim") : delfun <SID>CheckDir : delfun <SID>CheckFile : echo "--- Scripts sourced ---" : scriptnames :endif :set all :set termcap :au :if 1 : echo "--- Normal/Visual mode mappings ---" :endif :map :if 1 : echo "--- Insert/Command-line mode mappings ---" :endif :map! :if 1 : echo "--- Abbreviations ---" :endif :ab :if 1 : echo "--- Highlighting ---" :endif :highlight :if 1 : echo "--- Variables ---" :endif :if 1 : let :endif :redir END :set more& :if 1 : let &more = more_save : unlet more_save :endif :e bugreport.txt