Problem: concatenating strings is slow
Solution: Use grow_string_tv() to grow the existing string buffer in
place when possible (Yasuhiro Matsumoto).
closes: vim/vim#1964216d421a4d9
Co-authored-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Problem: blob: concatenation can be improved
Solution: Use ga_grow() to allocate space once and mch_memmove() to copy
the blob data as a single block and fall back to the previous
byte by byte append (Yasuhiro Matsumoto).
closes: vim/vim#1964567deae3b77
Co-authored-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Problem: The evalfunc.c file is too big.
Solution: Move undo functions to undo.c. Move cmdline functions to
ex_getln.c. Move some container functions to list.c.
08c308aeb5
Co-authored-by: Bram Moolenaar <Bram@vim.org>
These are not needed after #35129 but making uncrustify still play nice
with them was a bit tricky.
Unfortunately `uncrustify --update-config-with-doc` breaks strings
with backslashes. This issue has been reported upstream,
and in the meanwhile auto-update on every single run has been disabled.
Problem: Some functions are not tested
Solution: Add a few more tests, fix a few minor problems
(Yegappan Lakshmanan)
closes: vim/vim#14789fe424d13ef
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Problem: Vim9: cannot use += to append to empty NULL list.
Solution: Copy the list instead of extending it. (closesvim/vim#6998)
81ed496048
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Remove `export` pramgas from defs headers as it causes IWYU to believe
that the definitions from the defs headers comes from main header, which
is not what we really want.
FUNC_ATTR_* should only be used in .c files with generated headers.
Defining FUNC_ATTR_* as empty in headers causes misuses of them to be
silently ignored. Instead don't define them by default, and only define
them as empty after a .c file has included its generated header.
We already have an extensive suite of static analysis tools we use,
which causes a fair bit of redundancy as we get duplicate warnings. PVS
is also prone to give false warnings which creates a lot of work to
identify and disable.
A blob is used as a sequence of bytes and usually accessed individually,
not as as a NUL-terminuated string, so uint8_t should be better.
Not sure about ga_append(), but using uint8_t leads to fewer casts.
Allow Include What You Use to remove unnecessary includes and only
include what is necessary. This helps with reducing compilation times
and makes it easier to visualise which dependencies are actually
required.
Work on https://github.com/neovim/neovim/issues/549, but doesn't close
it since this only works fully for .c files and not headers.
Problem: The eval.c file is too big.
Solution: Move code related to variables to evalvars.c. (Yegappan
Lakshmanan, closesvim/vim#4868)
0522ba0359
Name the new file eval/vars.c instead.
Problem: Giving error messages is not flexible.
Solution: Add semsg(). Change argument from "char_u *" to "char *", also
for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes
vim/vim#3302) Also make emsg() accept a "char *" argument. Get rid of
an enormous number of type casts.
f9e3e09fdc
Problem: Cannot handle binary data.
Solution: Add the Blob type. (Yasuhiro Matsumoto, closesvim/vim#3638)
6e5ea8d2a9
Nvim-specific Blob conversions are implemented in future commits.
Refactor write_blob() to use a FileDescriptor, as f_writefile() was
refactored to use one (does not apply to read_blob()).
Use var_check_lock() in f_add() for Blobs from v8.1.0897.
Add a modeline to test_blob.vim and fix some doc typos.
Include if_perl.txt's VIM::Blob() documentation. Interestingly, this
function already worked before this port, as it just returns a Blob
string literal, not an actual Blob object.
N/A patches for version.c:
vim-patch:8.1.0741: viminfo with Blob is not tested
Problem: Viminfo with Blob is not tested.
Solution: Extend the viminfo test. Fix reading a blob. Fixed storing a
special variable value.
8c8b8bb56c
vim-patch:8.1.1022: may use NULL pointer when out of memory
Problem: May use NULL pointer when out of memory. (Coverity)
Solution: Check for blob_alloc() returning NULL.
e142a9467a
assert() is compiled out for release builds, but we don't want to
continue running in these impossible situations.
This also resolves the "implicit fallthrough" warnings for the asserts
in switch cases.
After merging +num64, the 64-bit sanitizer builds show that Vim doesn't
buffer the user from C's UB in signed arithmetic. Upstream doesn't
appear to be [interested] in fixing the issue, so suppress UBSAN until
someone decides to fix the problem.
N.B., the problem existed before but went unnoticed since the sanitizer
builds weren't being run in 32-bit mode.
[interested]: https://groups.google.com/d/topic/vim_dev/_tqf8eQy5eA/discussion
