Mercurial > vim
view src/testdir/test_vim9_fails.vim @ 34379:37b4c89ba420 v9.1.0116
patch 9.1.0116: win_split_ins may not check available room
Commit: https://github.com/vim/vim/commit/0fd44a5ad81ade342cb54d8984965bdedd2272c8
Author: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Date: Tue Feb 20 20:28:15 2024 +0100
patch 9.1.0116: win_split_ins may not check available room
Problem: win_split_ins has no check for E36 when moving an existing
window
Solution: check for room and fix the issues in f_win_splitmove()
(Sean Dewar)
win_split_ins has no check for E36 when moving an existing window,
allowing for layouts with many overlapping zero-sized windows to be
created (which may also cause drawing issues with tablines and such).
f_win_splitmove also has some bugs.
So check for room and fix the issues in f_win_splitmove. Handle failure
in the two relevant win_split_ins callers by restoring the original
layout, and factor the common logic into win_splitmove.
Don't check for room when opening an autocommand window, as it's a
temporary window that's rarely interacted with or drawn anyhow, and is
rather important for some autocommands.
Issues fixed in f_win_splitmove:
- Error if splitting is disallowed.
- Fix heap-use-after-frees if autocommands fired from switching to "targetwin"
close "wp" or "oldwin".
- Fix splitting the wrong window if autocommands fired from switching to
"targetwin" switch to a different window.
- Ensure -1 is returned for all errors.
Also handle allocation failure a bit earlier in make_snapshot (callers,
except win_splitmove, don't really care if a snapshot can't be made, so
just ignore the return value).
Note: Test_smoothscroll_in_zero_width_window failed after these changes with
E36, as it was using the previous behaviour to create a zero-width window.
I've fixed the test such that it fails with UBSAN as expected when v9.0.1367 is
reverted (and simplified it too).
related: #14042
Signed-off-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Tue, 20 Feb 2024 22:30:04 +0100 |
parents | 54e36d01847b |
children |
line wrap: on
line source
" Test for Vim9 script with failures, causing memory leaks to be reported. " The leaks happen after a fork() and can be ignored. source check.vim def Test_assignment() if !has('channel') CheckFeature channel else var chan1: channel var job1: job var job2: job = job_start('willfail') endif enddef " Unclear why this test causes valgrind to report problems. def Test_job_info_return_type() if !has('job') CheckFeature job else var job: job = job_start(&shell) var jobs = job_info() assert_equal('list<job>', typename(jobs)) assert_equal('dict<any>', typename(job_info(jobs[0]))) job_stop(job) endif enddef " Using "idx" from a legacy global function does not work. " This caused a crash when called from legacy context. " This creates a dict that contains a partial that refers to the dict, causing " valgrind to report "possibly leaked memory". func Test_partial_call_fails() let lines =<< trim END vim9script var l = ['a', 'b', 'c'] def Iter(container: any): any var idx = -1 var obj = {state: container} def g:NextItem__(self: dict<any>): any ++idx return self.state[idx] enddef obj.__next__ = function('g:NextItem__', [obj]) return obj enddef var it = Iter(l) echo it.__next__() END call writefile(lines, 'XpartialCall', 'D') let caught = 'no' try source XpartialCall catch /E1248:/ let caught = 'yes' endtry call assert_equal('yes', caught) delfunc g:NextItem__ endfunc