Mercurial > vim
view src/testdir/test_file_size.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 | 08940efa6b4e |
children |
line wrap: on
line source
" Inserts 2 million lines with consecutive integers starting from 1 " (essentially, the output of GNU's seq 1 2000000), writes them to Xtest " and writes its cksum to test.out. " " We need 2 million lines to trigger a call to mf_hash_grow(). If it would mess " up the lines the checksum would differ. " " cksum is part of POSIX and so should be available on most Unixes. " If it isn't available then the test will be skipped. source check.vim func Test_File_Size() CheckExecutable cksum new set fileformat=unix undolevels=-1 for i in range(1, 2000000, 100) call append(i, range(i, i + 99)) endfor 1delete w! Xtest let res = systemlist('cksum Xtest')[0] let res = substitute(res, "\r", "", "") call assert_equal('3678979763 14888896 Xtest', res) enew! call delete('Xtest') set fileformat& undolevels& endfunc " Test for writing and reading a file of over 100 Kbyte func Test_File_Read_Write() enew! " Create a file with the following contents " 1 line: "This is the start" " 3001 lines: "This is the leader" " 1 line: "This is the middle" " 3001 lines: "This is the trailer" " 1 line: "This is the end" call append(0, "This is the start") call append(1, repeat(["This is the leader"], 3001)) call append(3002, "This is the middle") call append(3003, repeat(["This is the trailer"], 3001)) call append(6004, "This is the end") write! Xtest enew! edit! Xtest call assert_equal("This is the start", getline(1)) call assert_equal("This is the middle", getline(3003)) call assert_equal("This is the end", getline(6005)) enew! call delete("Xtest") endfunc " vim: shiftwidth=2 sts=2 expandtab