Mercurial > vim
view src/testdir/test_utf8_comparisons.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 | d2ad8733db75 |
line wrap: on
line source
" Tests for case-insensitive UTF-8 comparisons (utf_strnicmp() in mbyte.c) " Also test "g~ap". func Ch(a, op, b, expected) call assert_equal(eval(printf('"%s" %s "%s"', a:a, a:op, a:b)), a:expected, \ printf('"%s" %s "%s" should return %d', a:a, a:op, a:b, a:expected)) endfunc func Chk(a, b, result) if a:result == 0 call Ch(a:a, '==?', a:b, 1) call Ch(a:a, '!=?', a:b, 0) call Ch(a:a, '<=?', a:b, 1) call Ch(a:a, '>=?', a:b, 1) call Ch(a:a, '<?', a:b, 0) call Ch(a:a, '>?', a:b, 0) elseif a:result > 0 call Ch(a:a, '==?', a:b, 0) call Ch(a:a, '!=?', a:b, 1) call Ch(a:a, '<=?', a:b, 0) call Ch(a:a, '>=?', a:b, 1) call Ch(a:a, '<?', a:b, 0) call Ch(a:a, '>?', a:b, 1) else call Ch(a:a, '==?', a:b, 0) call Ch(a:a, '!=?', a:b, 1) call Ch(a:a, '<=?', a:b, 1) call Ch(a:a, '>=?', a:b, 0) call Ch(a:a, '<?', a:b, 1) call Ch(a:a, '>?', a:b, 0) endif endfunc func Check(a, b, result) call Chk(a:a, a:b, a:result) call Chk(a:b, a:a, -a:result) endfunc func LT(a, b) call Check(a:a, a:b, -1) endfunc func GT(a, b) call Check(a:a, a:b, 1) endfunc func EQ(a, b) call Check(a:a, a:b, 0) endfunc func Test_comparisons() call EQ('', '') call LT('', 'a') call EQ('abc', 'abc') call EQ('Abc', 'abC') call LT('ab', 'abc') call LT('AB', 'abc') call LT('ab', 'aBc') call EQ('\xd0\xb9\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd', '\xd0\xb9\xd0\xa6\xd0\xa3\xd0\xba\xd0\x95\xd0\xbd') call LT('\xd0\xb9\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd', '\xd0\xaf\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd') call EQ('\xe2\x84\xaa', 'k') call LT('\xe2\x84\xaa', 'kkkkkk') call EQ('\xe2\x84\xaa\xe2\x84\xaa\xe2\x84\xaa', 'kkk') call LT('kk', '\xe2\x84\xaa\xe2\x84\xaa\xe2\x84\xaa') call EQ('\xe2\x84\xaa\xe2\x84\xa6k\xe2\x84\xaak\xcf\x89', 'k\xcf\x89\xe2\x84\xaakk\xe2\x84\xa6') call EQ('Abc\x80', 'AbC\x80') call LT('Abc\x80', 'AbC\x81') call LT('Abc', 'AbC\x80') call LT('abc\x80DEF', 'abc\x80def') " case folding stops at the first bad character call LT('\xc3XYZ', '\xc3xyz') call EQ('\xef\xbc\xba', '\xef\xbd\x9a') " FF3A (upper), FF5A (lower) call GT('\xef\xbc\xba', '\xef\xbc\xff') " first string is ok and equals \xef\xbd\x9a after folding, second string is illegal and was left unchanged, then the strings were bytewise compared call LT('\xc3', '\xc3\x83') call EQ('\xc3\xa3xYz', '\xc3\x83XyZ') for n in range(0x60, 0xFF) call LT(printf('xYz\x%.2X', n-1), printf('XyZ\x%.2X', n)) endfor for n in range(0x80, 0xBF) call EQ(printf('xYz\xc2\x%.2XUvW', n), printf('XyZ\xc2\x%.2XuVw', n)) endfor for n in range(0xC0, 0xFF) call LT(printf('xYz\xc2\x%.2XUvW', n), printf('XyZ\xc2\x%.2XuVw', n)) endfor endfunc " test that g~ap changes one paragraph only. func Test_gap() new " setup text call feedkeys("iabcd\<cr>\<cr>defg", "tx") " modify only first line call feedkeys("gg0g~ap", "tx") call assert_equal(["ABCD", "", "defg"], getline(1,3)) endfunc " vim: shiftwidth=2 sts=2 expandtab