Mercurial > vim
view src/testdir/test_help.vim @ 33471:baa62f464436 v9.0.1988
patch 9.0.1988: Vim9: potential use-after-free for class members
Commit: https://github.com/vim/vim/commit/d2f4800099733216e28d59e1a5710f624b0d9ec1
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Thu Oct 5 20:24:18 2023 +0200
patch 9.0.1988: Vim9: potential use-after-free for class members
Problem: Vim9: potential use-after-free for class members
Solution: Use the class-related grow array for storing the
member type instead of using a temporary type
list grow array
Use the type list grow array associated with the class than using a
temporary type list grow array to allocate the class member type.
For simple types, a predefined type is used. For complex types, the type
is dynamically allocated from a grow array. For class variables, the
type grow array in the class should be used. So that the lifetime of the
type is same as the lifetime of the class.
closes: #13279
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 05 Oct 2023 20:30:11 +0200 |
parents | bcd204e28fed |
children |
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" Tests for :help source check.vim import './vim9.vim' as v9 func Test_help_restore_snapshot() help set buftype= help edit x help helpclose endfunc func Test_help_restore_snapshot_split() " Squeeze the unnamed buffer, Xfoo and the help one side-by-side and focus " the first one before calling :help. let bnr = bufnr() botright vsp Xfoo wincmd h help wincmd L let g:did_bufenter = v:false augroup T au! au BufEnter Xfoo let g:did_bufenter = v:true augroup END helpclose augroup! T " We're back to the unnamed buffer. call assert_equal(bnr, bufnr()) " No BufEnter was triggered for Xfoo. call assert_equal(v:false, g:did_bufenter) close! bwipe! endfunc func Test_help_errors() call assert_fails('help doesnotexist', 'E149:') call assert_fails('help!', 'E478:') if has('multi_lang') call assert_fails('help help@xy', 'E661:') endif let save_hf = &helpfile set helpfile=help_missing help call assert_equal(1, winnr('$')) call assert_notequal('help', &buftype) let &helpfile = save_hf call assert_fails('help ' . repeat('a', 1048), 'E149:') new set keywordprg=:help call setline(1, " ") call assert_fails('normal VK', 'E349:') bwipe! endfunc func Test_help_expr() help expr-!~? call assert_equal('eval.txt', expand('%:t')) close endfunc func Test_help_keyword() new set keywordprg=:help call setline(1, " Visual ") normal VK call assert_match('^Visual mode', getline('.')) call assert_equal('help', &ft) close bwipe! endfunc func Test_help_local_additions() call mkdir('Xruntime/doc', 'pR') call writefile(['*mydoc.txt* my awesome doc'], 'Xruntime/doc/mydoc.txt') call writefile(['*mydoc-ext.txt* my extended awesome doc'], 'Xruntime/doc/mydoc-ext.txt') let rtp_save = &rtp set rtp+=./Xruntime help local-additions let lines = getline(line(".") + 1, search("^$") - 1) call assert_equal([ \ '|mydoc-ext.txt| my extended awesome doc', \ '|mydoc.txt| my awesome doc' \ ], lines) call delete('Xruntime/doc/mydoc-ext.txt') close call mkdir('Xruntime-ja/doc', 'pR') call writefile(["local-additions\thelp.jax\t/*local-additions*"], 'Xruntime-ja/doc/tags-ja') call writefile(['*help.txt* This is jax file', '', \ 'LOCAL ADDITIONS: *local-additions*', ''], 'Xruntime-ja/doc/help.jax') call writefile(['*work.txt* This is jax file'], 'Xruntime-ja/doc/work.jax') call writefile(['*work2.txt* This is jax file'], 'Xruntime-ja/doc/work2.jax') set rtp+=./Xruntime-ja help local-additions@en let lines = getline(line(".") + 1, search("^$") - 1) call assert_equal([ \ '|mydoc.txt| my awesome doc' \ ], lines) close help local-additions@ja let lines = getline(line(".") + 1, search("^$") - 1) call assert_equal([ \ '|mydoc.txt| my awesome doc', \ '|help.txt| This is jax file', \ '|work.txt| This is jax file', \ '|work2.txt| This is jax file', \ ], lines) close let &rtp = rtp_save endfunc func Test_help_completion() call feedkeys(":help :undo\<C-A>\<C-B>\"\<CR>", 'tx') call assert_equal('"help :undo :undoj :undol :undojoin :undolist', @:) endfunc " Test for the :helptags command " NOTE: if you run tests as root this will fail. Don't run tests as root! func Test_helptag_cmd() call mkdir('Xtagdir/a/doc', 'pR') " No help file to process in the directory call assert_fails('helptags Xtagdir', 'E151:') call writefile([], 'Xtagdir/a/doc/sample.txt') " Test for ++t argument helptags ++t Xtagdir call assert_equal(["help-tags\ttags\t1"], readfile('Xtagdir/tags')) call delete('Xtagdir/tags') " Test parsing tags call writefile(['*tag1*', 'Example: >', ' *notag*', 'Example end: *tag2*'], \ 'Xtagdir/a/doc/sample.txt') helptags Xtagdir call assert_equal(["tag1\ta/doc/sample.txt\t/*tag1*", \ "tag2\ta/doc/sample.txt\t/*tag2*"], readfile('Xtagdir/tags')) " Duplicate tags in the help file call writefile(['*tag1*', '*tag1*', '*tag2*'], 'Xtagdir/a/doc/sample.txt') call assert_fails('helptags Xtagdir', 'E154:') endfunc func Test_helptag_cmd_readonly() CheckUnix CheckNotRoot " Read-only tags file call mkdir('Xrodir/doc', 'pR') call writefile([''], 'Xrodir/doc/tags') call writefile([], 'Xrodir/doc/sample.txt') call setfperm('Xrodir/doc/tags', 'r-xr--r--') call assert_fails('helptags Xrodir/doc', 'E152:', getfperm('Xrodir/doc/tags')) let rtp = &rtp let &rtp = 'Xrodir' helptags ALL let &rtp = rtp call delete('Xrodir/doc/tags') " No permission to read the help file call mkdir('Xrodir/b/doc', 'p') call writefile([], 'Xrodir/b/doc/sample.txt') call setfperm('Xrodir/b/doc/sample.txt', '-w-------') call assert_fails('helptags Xrodir', 'E153:', getfperm('Xrodir/b/doc/sample.txt')) endfunc " Test for setting the 'helpheight' option in the help window func Test_help_window_height() let &cmdheight = &lines - 23 set helpheight=10 help set helpheight=14 call assert_equal(14, winheight(0)) set helpheight& cmdheight=1 close endfunc func Test_help_long_argument() try exe 'help \%' .. repeat('0', 1021) catch call assert_match("E149:", v:exception) endtry endfunc func Test_help_using_visual_match() let lines =<< trim END call setline(1, ' ') /^ exe "normal \<C-V>\<C-V>" h5\%V] END call v9.CheckScriptFailure(lines, 'E149:') endfunc " vim: shiftwidth=2 sts=2 expandtab