Mercurial > vim
view runtime/indent/postscr.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 | 57c9377b9c62 |
children |
line wrap: on
line source
" PostScript indent file " Language: PostScript " Maintainer: Mike Williams <mrw@eandem.co.uk> " Last Change: 2022 Apr 06 " Only load this indent file when no other was loaded. if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal indentexpr=PostscrIndentGet(v:lnum) setlocal indentkeys+=0],0=>>,0=%%,0=end,0=restore,0=grestore indentkeys-=:,0#,e let b:undo_indent = "setl inde< indk<" " Catch multiple instantiations if exists("*PostscrIndentGet") finish endif function! PostscrIndentGet(lnum) " Find a non-empty non-comment line above the current line. " Note: ignores DSC comments as well! let lnum = a:lnum - 1 while lnum != 0 let lnum = prevnonblank(lnum) if getline(lnum) !~ '^\s*%.*$' break endif let lnum = lnum - 1 endwhile " Hit the start of the file, use user indent. if lnum == 0 return -1 endif " Start with the indent of the previous line let ind = indent(lnum) let pline = getline(lnum) " Indent for dicts, arrays, and saves with possible trailing comment if pline =~ '\(begin\|<<\|g\=save\|{\|[\)\s*\(%.*\)\=$' let ind = ind + shiftwidth() endif " Remove indent for popped dicts, and restores. if pline =~ '\(end\|g\=restore\)\s*$' let ind = ind - shiftwidth() " Else handle immediate dedents of dicts, restores, and arrays. elseif getline(a:lnum) =~ '\(end\|>>\|g\=restore\|}\|]\)' let ind = ind - shiftwidth() " Else handle DSC comments - always start of line. elseif getline(a:lnum) =~ '^\s*%%' let ind = 0 endif " For now catch excessive left indents if they occur. if ind < 0 let ind = -1 endif return ind endfunction " vim:sw=2