Commit Graph

404 Commits

Author SHA1 Message Date
zeertzjq
b1e35cbd7b vim-patch:9.1.1603: completion: cannot use autoloaded funcs in 'complete' F{func}
Problem:  completion: cannot use autoloaded funcs in 'complete' F{func}
          (Maxim Kim)
Solution: Make it work (Girish Palya)

fixes: vim/vim#17869
closes: vim/vim#17885

1bfe86a7d3

Cherry-pick Test_omni_autoload() from patch 8.2.3223.

Co-authored-by: Girish Palya <girishji@gmail.com>
2025-08-09 10:58:51 +08:00
zeertzjq
4f0ab9877b vim-patch:9.1.1557: not possible to anchor specific lines in diff mode (#34967)
Problem:  not possible to anchor specific lines in diff mode
Solution: Add support for the anchoring lines in diff mode using the
          'diffanchor' option (Yee Cheng Chin).

Adds support for anchoring specific lines to each other while viewing a
diff. While lines are anchored, they are guaranteed to be aligned to
each other in a diff view, allowing the user to control and inform the
diff algorithm what the desired alignment is. Internally, this is done
by splitting up the buffer at each anchor and run the diff algorithm on
each split section separately, and then merge the results back for a
logically consistent diff result.

To do this, add a new "diffanchors" option that takes a list of
`{address}`, and a new "diffopt" option value "anchor". Each address
specified will be an anchor, and the user can choose to use any type of
address, including marks, line numbers, or pattern search. Anchors are
sorted by line number in each file, and it's possible to have multiple
anchors on the same line (this is useful when doing multi-buffer diff).
Update documentation to provide examples.

This is similar to Git diff's `--anchored` flag. Other diff tools like
Meld/Araxis Merge also have similar features (called "synchronization
points" or "synchronization links"). We are not using Git/Xdiff's
`--anchored` implementation here because it has a very limited API
(it requires usage of the Patience algorithm, and can only anchor
unique lines that are the same across both files).

Because the user could anchor anywhere, diff anchors could result in
adjacent diff blocks (one block is directly touching another without a
gap), if there is a change right above the anchor point. We don't want
to merge these diff blocks because we want to line up the change at the
anchor. Adjacent diff blocks were first allowed when linematch was
added, but the existing code had a lot of branched paths where
line-matched diff blocks were handled differently. As a part of this
change, refactor them to have a more unified code path that is
generalized enough to handle adjacent diff blocks correctly and without
needing to carve in exceptions all over the place.

closes: vim/vim#17615

0d9160e11c

Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
2025-07-18 08:04:32 +08:00
Shadman
5973328eda feat(options): per-buffer 'busy' status #34493
Problem:
Plugins cannot mark a buffer as "busy".

Solution:
- Add a buffer-local 'busy' option.
- Show a busy indicator in the default 'statusline'.
2025-07-06 16:17:06 -07:00
Shadman
286371b4d2 feat(prompt): multiline prompt input #33371
Problem:
Cannot enter multiline prompts in a buftype=prompt buffer.

Solution:
- Support shift+enter (`<s-enter>`) to start a new line in the prompt.
- Pasting multiline text via OS paste, clipboard, "xp, etc.
- A/I in editable region works as usual.
- i/a/A/I outside of editable region moves cursor to end of current
  prompt.
- Support undo/redo in prompt buffer.
- Support o/O in prompt buffer.
- Expose prompt location as `':` mark.
2025-06-17 08:46:57 -07:00
zeertzjq
99384fcd9c vim-patch:9.1.1396: 'grepformat' is a global option (#34060)
Problem:  The 'grepformat' option is global option, but it would be
          useful to have it buffer-local, similar to 'errorformat' and
          other quickfix related options (Dani Dickstein)
Solution: Add the necessary code to support global-local 'grepformat',
          allowing different buffers to parse different grep output
          formats (glepnir)

fixes: vim/vim#17316
closes: vim/vim#17315

7b9eb6389d

Co-authored-by: glepnir <glephunter@gmail.com>
2025-05-17 00:20:20 +00:00
Sean Dewar
627c648252 vim-patch:9.1.1361: [security]: possible use-after-free when closing a buffer (#33820)
Problem:  [security]: Possible to open more windows into a closing
          buffer without splitting, bypassing existing "b_locked_split"
          checks and triggering use-after-free
Solution: Disallow switching to a closing buffer. Editing a closing
          buffer (via ":edit", etc.) was fixed in v9.1.0764, but add an
          error message and check just "b_locked_split", as "b_locked"
          is necessary only when the buffer shouldn't be wiped, and may
          be set for buffers that are in-use but not actually closing.
          (Sean Dewar)

closes: vim/vim#17246

6cb1c82840
2025-05-04 03:15:51 +01:00
luukvbaal
08c484f2ca feat(ui): use builtin completion popupmenu with ext_cmdline (#31269)
Problem:  UIs implementing ext_cmdline/message must also implement
          ext_popupmenu in order to get cmdline completion with
          wildoptions+=pum.
Solution: Allow marking a window as the ext_cmdline window through
          nvim_open_win(), including prompt offset. Anchor the cmdline-
          completion popupmenu to this window.
2025-04-29 15:55:00 +02:00
zeertzjq
ffb93d9883 Merge pull request #33667 from glepnir/vim-9.1.1341
vim-patch: 9.1.{1341,1344}
2025-04-29 14:59:32 +08:00
glepnir
e7e665b489 vim-patch:ffc89e4 runtime(doc): clarify complete_match() and 'isexpand' option
clarify complete_match() documentation to better explain its backward
search behavior, argument handling, and return value format and add an
example of isexpand

closes: https://github.com/vim/vim/pull/17212

ffc89e47d0
2025-04-29 14:11:55 +08:00
bfredl
bd413a2f55 refactor(ui): separate types for allocated grids and viewports 2025-04-28 10:10:11 +02:00
glepnir
fcabbc2283 vim-patch:9.1.1341: cannot define completion triggers
Problem:  Cannot define completion triggers and act upon it
Solution: add the new option 'isexpand' and add the complete_match()
          function to return the completion matches according to the
          'isexpand' setting (glepnir)

Currently, completion trigger position is determined solely by the
'iskeyword' pattern (\k\+$), which causes issues when users need
different completion behaviors - such as triggering after '/' for
comments or '.' for methods. Modifying 'iskeyword' to include these
characters has undesirable side effects on other Vim functionality that
relies on keyword definitions.

Introduce a new buffer-local option 'isexpand' that allows specifying
different completion triggers and add the complete_match() function that
finds the appropriate start column for completion based on these
triggers, scanning backwards from cursor position.

This separation of concerns allows customized completion behavior
without affecting iskeyword-dependent features. The option's
buffer-local nature enables per-filetype completion triggers.

closes: vim/vim#16716

bcd5995b40

Co-authored-by: glepnir <glephunter@gmail.com>
2025-04-27 15:00:31 +08:00
zeertzjq
6e5671b00d vim-patch:9.1.1296: completion: incorrect truncation logic
Problem:  completion: incorrect truncation logic (after: v9.1.1284)
Solution: replace string allocation with direct screen rendering and
          fixe RTL/LTR truncation calculations (glepnir)

closes: vim/vim#17081

d4dbf822dc

Co-authored-by: glepnir <glephunter@gmail.com>
2025-04-17 06:46:34 +08:00
zeertzjq
1c723b2e6f vim-patch:9.1.1284: not possible to configure pum truncation char
Problem:  not possible to configure the completion menu truncation
          character
Solution: add the "trunc" suboption to the 'fillchars' setting to
          configure the truncation indicator (glepnir).

closes: vim/vim#17006

b87620466c

Co-authored-by: glepnir <glephunter@gmail.com>
2025-04-17 06:46:34 +08:00
luukvbaal
4a706a7092 fix(column): don't count signs on lines beyond eob #33410
Problem:  Computed previous buffer line count may be beyond end of
          buffer. This results in signs being removed from `b_signcols`
          that were never included in it, tripping an assertion.

Solution: Store the previous line count as it was before appending or
          deleting lines. Use it to clamp the edited region when
          clearing signs before a splice, after which it is reset.
2025-04-11 04:46:55 -07:00
zeertzjq
00eff4b196 vim-patch:9.1.1283: quickfix stack is limited to 10 items
Problem:  quickfix and location-list stack is limited to 10 items
Solution: add the 'chistory' and 'lhistory' options to configure a
          larger quickfix/location list stack
          (64-bitman)

closes: vim/vim#16920

88d41ab270

Co-authored-by: 64-bitman <60551350+64-bitman@users.noreply.github.com>
Co-authored-by: Hirohito Higashi <h.east.727@gmail.com>
2025-04-08 13:06:19 +08:00
zeertzjq
cb31663663 vim-patch:9.1.1252: typos in code and docs related to 'diffopt' "inline:" (#33143)
Problem:  Typos in code and docs related to 'diffopt' "inline:".
          (after v9.1.1243)
Solution: Fix typos and slightly improve the docs.
          (zeertzjq)

closes: vim/vim#16997

5a307c361c
2025-03-29 07:01:49 +08:00
zeertzjq
2331c52aff vim-patch:9.1.1243: diff mode is lacking for changes within lines
Problem:  Diff mode's inline highlighting is lackluster. It only
          performs a line-by-line comparison, and calculates a single
          shortest range within a line that could encompass all the
          changes. In lines with multiple changes, or those that span
          multiple lines, this approach tends to end up highlighting
          much more than necessary.

Solution: Implement new inline highlighting modes by doing per-character
          or per-word diff within the diff block, and highlight only the
          relevant parts, add "inline:simple" to the defaults (which is
          the old behaviour)

This change introduces a new diffopt option "inline:<type>". Setting to
"none" will disable all inline highlighting, "simple" (the default) will
use the old behavior, "char" / "word" will perform a character/word-wise
diff of the texts within each diff block and only highlight the
differences.

The new char/word inline diff only use the internal xdiff, and will
respect diff options such as algorithm choice, icase, and misc iwhite
options. indent-heuristics is always on to perform better sliding.

For character highlight, a post-process of the diff results is first
applied before we show the highlight. This is because a naive diff will
create a result with a lot of small diff chunks and gaps, due to the
repetitive nature of individual characters. The post-process is a
heuristic-based refinement that attempts to merge adjacent diff blocks
if they are separated by a short gap (1-3 characters), and can be
further tuned in the future for better results. This process results in
more characters than necessary being highlighted but overall less visual
noise.

For word highlight, always use first buffer's iskeyword definition.
Otherwise if each buffer has different iskeyword settings we would not
be able to group words properly.

The char/word diffing is always per-diff block, not per line, meaning
that changes that span multiple lines will show up correctly.
Added/removed newlines are not shown by default, but if the user has
'list' set (with "eol" listchar defined), the eol character will be be
highlighted correctly for the specific newline characters.

Also, add a new "DiffTextAdd" highlight group linked to "DiffText" by
default. It allows color schemes to use different colors for texts that
have been added within a line versus modified.

This doesn't interact with linematch perfectly currently. The linematch
feature splits up diff blocks into multiple smaller blocks for better
visual matching, which makes inline highlight less useful especially for
multi-line change (e.g. a line is broken into two lines). This could be
addressed in the future.

As a side change, this also removes the bounds checking introduced to
diff_read() as they were added to mask existing logic bugs that were
properly fixed in vim/vim#16768.

closes: vim/vim#16881

9943d4790e

Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
2025-03-28 14:45:01 +08:00
luukvbaal
063b69bab4 fix(column): unnecessary redraws with resized 'statuscolumn' (#32944)
Problem:  Since 3cb1e825, all windows with 'statuscolumn' set, and a
          resized 'signcolumn' for a particular buffer are marked
          to be fully redrawn when the first window is encountered.
          The "resized" variable is only unset after all windows have
          been drawn, so this results in windows that have just been
          draw to be marked for redraw again, even though the
          signcolumn did not change size again.
Solution: Replace the `resized` variable with a `last_max` variable that
          is changed when the first window into buf is encountered.
2025-03-17 21:52:45 +01:00
dundargoc
026cfa28d0 docs: misc
Co-authored-by: Au. <acehinnnqru@gmail.com>
Co-authored-by: Daniel Rainer <daniel.rainer@localhost>
Co-authored-by: Evgeni Chasnovski <evgeni.chasnovski@gmail.com>
Co-authored-by: Lewis Russell <lewis6991@gmail.com>
Co-authored-by: Luuk van Baal <luukvbaal@gmail.com>
Co-authored-by: Pierre Barbin <pierre@heitzsystem.com>
Co-authored-by: Riley Bruins <ribru17@hotmail.com>
Co-authored-by: Yinzuo Jiang <jiangyinzuo@foxmail.com>
Co-authored-by: phanium <91544758+phanen@users.noreply.github.com>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
2025-03-15 15:00:44 +01:00
luukvbaal
8da59060c6 fix(marks): mark winline as invalid if change is in a concealed line (#32766)
Code that checks whether a `w_lines` entry has become invalid due to
a change in a folded line should now also check for concealed lines.
2025-03-07 16:21:20 +01:00
luukvbaal
86046c5a31 fix(marks): ineffective conceal_line callback optimization (#32662)
Problem:  _on_conceal_line callbacks are not invoked if callback has not
          let Nvim know it wants to receive them. But this may change on
          factors other than what is currently checked (changed buffer).
Solution: Forego this optimization, callback is still guarded behind
          'conceallevel'.
2025-02-28 13:36:25 +01:00
Luuk van Baal
8ba047e33f feat(treesitter): vertical conceal support for highlighter
TSHighlighter now places marks for conceal_lines metadata. A new
internal decor provider callback _on_conceal_line was added that
instructs the highlighter to place conceal_lines marks whenever the
editor needs to know whether a line is concealed. The bundled markdown
queries use conceal_lines metadata to conceal code block fence lines.
2025-02-25 13:09:01 +01:00
Luuk van Baal
f58e7d5fac feat(marks): add conceal_lines to nvim_buf_set_extmark()
Implement an extmark property that conceals lines vertically.
2025-02-25 13:09:01 +01:00
zeertzjq
095c0876c2 fix(api): don't override Vimscript SID (#32610)
Problem:  When calling an API from Vimscript to set an option, mapping,
          etc., :verbose shows that it's set from an API client.
Solution: Don't override current_sctx.sc_sid when calling an API from
          Vimscript. Also fix the inverse case where API channel id is
          not set when calling an API from RPC. Move channel id into
          sctx_T to make saving and restoring easier.

Related #8329
2025-02-25 01:17:51 +00:00
luukvbaal
82a215cb2d feat(options): add 'eventignorewin' (#32152)
vim-patch:partial:9.1.1084: Unable to persistently ignore events in a window and its buffers

Problem:  Unable to persistently ignore events in a window and its buffers.
Solution: Add 'eventignorewin' option to ignore events in a window and buffer
          (Luuk van Baal)

Add the window-local 'eventignorewin' option that is analogous to
'eventignore', but applies to a certain window and its buffers. Identify
events that should be allowed in 'eventignorewin', adapt "auto_event"
and "event_tab" to encode this information. Window context is not passed
onto apply_autocmds_group(), and when to ignore an event is a bit
ambiguous when "buf" is not "curbuf", rather than a large refactor, only
ignore an event when all windows into "buf" are ignoring the event.

b7147f8236

vim-patch:9.1.1102: tests: Test_WinScrolled_Resized_eiw() uses wrong filename

Problem:  tests: Test_WinScrolled_Resized_eiw() uses wrong filename
          (Luuk van Baal, after v9.1.1084)
Solution: Rename the filename to something more unique

bfc7719e48
2025-02-12 11:01:06 +01:00
luukvbaal
25d8c3a5ad feat(api): nvim_open_win() relative to tabline and laststatus #32006
Problem:  Anchoring a floating window to the tabline and laststatus is
          cumbersome; requiring autocommands and looping over all
          windows/tabpages.
Solution: Add new "tabline" and "laststatus" options to the `relative`
          field of nvim_open_win() to place a window relative to.
2025-01-14 05:02:46 -08:00
bfredl
2d6f57b289 refactor(wininfo): change wininfo from a linked list to an array
"wininfo" is going to be my next victim. The main problem with wininfo
is that it is "all or nothing", i e either all state about a buffer in a
window is considered valid or none of it is. This needs to be fixed to
address some long running grievances.

For now this is just a warmup: refactor it from a linked list to a
vector.
2024-12-16 12:46:59 +01:00
Famiu Haque
8516c2dc1f refactor(options): autogenerate valid values and flag enums for options (#31089)
Problem: Option metadata like list of valid values for an option and
option flags are not listed in the `options.lua` file and are instead
manually defined in C, which means option metadata is split between
several places.

Solution: Put metadata such as list of valid values for an option and
option flags in `options.lua`, and autogenerate the corresponding C
variables and enums.

Supersedes #28659

Co-authored-by: glepnir <glephunter@gmail.com>
2024-11-23 08:22:06 +00:00
zeertzjq
ff75f345ab fix(highlight): 'winhl' shouldn't take priority over API (#31288) 2024-11-22 06:52:32 +08:00
Famiu Haque
29ded88957 refactor(options): remove .indir, redesign option scopes #31066
Problem:
The way option scopes currently work is inflexible and does not allow for nested
option scopes or easily finding the value of an option at any arbitrary scope
without having to do long handwritten switch-case statements like in
`get_varp()`. `.indir` is also confusing and redundant since option indices for
each scope can be autogenerated.

Solution:
Expand option scopes in such a way that an option can support any amount of
scopes using a set of scope flags, similarly to how it's already done for option
types. Also make options contain information about its index at each scope it
supports. This allows for massively simplifying `get_varp()` and
`get_varp_scope()` in the future by just using a struct for options at each
scope. This would be done by creating a table that stores the offset of an
option's variable at a scope by using the option's index at that scope as a key.
This PR also autogenerates enums for option indices at each scope to remove the
need for `.indir` entirely, and also to allow easily iterating over options all
options that support any scope.

Ref: #29314
2024-11-16 12:56:16 -08:00
zeertzjq
3075c69ff0 vim-patch:9.1.0831: 'findexpr' can't be used as lambad or Funcref (#31058)
Problem:  'findexpr' can't be used for lambads
          (Justin Keyes)
Solution: Replace the findexpr option with the findfunc option
          (Yegappan Lakshmanan)

related: vim/vim#15905
closes: vim/vim#15976

a13f3a4f5d

Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
2024-11-03 10:06:41 +08:00
zeertzjq
378d9135e7 vim-patch:9.1.0810: cannot easily adjust the |:find| command
Problem:  cannot easily adjust the |:find| command
Solution: Add support for the 'findexpr' option (Yegappan Lakshmanan)

closes: vim/vim#15901
closes: vim/vim#15905

aeb1c97db5

Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
2024-10-29 08:20:00 +08:00
Famiu Haque
34c44c3556 refactor(options): option flags enum #30961
Problem: Currently we use macros with hardcoded flag values for option flags, which is messy and requires a lot of mental math for adding / removing option flags. Using macros for option flags also means that they cannot be used inside debuggers.

Solution: Create a new `OptFlags` enum that stores all the option flags in an organized way that is easier to understand.
2024-10-28 06:49:16 -07:00
zeertzjq
9b8907d905 feat(float): allow enabling mouse for non-focusable window (#30844)
Problem:  Cannot allow mouse interaction for non-focusable float window.
Solution: Add a "mouse" field to float window config.
2024-10-20 22:18:26 +08:00
Justin M. Keyes
737f58e232 refactor(api)!: rename Dictionary => Dict
In the api_info() output:

    :new|put =map(filter(api_info().functions, '!has_key(v:val,''deprecated_since'')'), 'v:val')
    ...

    {'return_type': 'ArrayOf(Integer, 2)', 'name': 'nvim_win_get_position', 'method': v:true, 'parameters': [['Window', 'window']], 'since': 1}

The `ArrayOf(Integer, 2)` return type didn't break clients when we added
it, which is evidence that clients don't use the `return_type` field,
thus renaming Dictionary => Dict in api_info() is not (in practice)
a breaking change.
2024-09-23 14:42:57 +02:00
zeertzjq
7df6fbb096 vim-patch:9.1.0679: Rename from w_closing to w_locked is incomplete
Problem:  Rename from w_closing to w_locked is incomplete
          (after 9.1.0678).
Solution: Rename remaining occurrences of w_closing to w_locked and
          update comments (zeertzjq).

closes: vim/vim#15504

bc11f6d9d4
2024-08-17 06:04:52 +08:00
zeertzjq
b3d291c565 vim-patch:9.1.0678: [security]: use-after-free in alist_add()
Problem:  [security]: use-after-free in alist_add()
          (SuyueGuo)
Solution: Lock the current window, so that the reference to
          the argument list remains valid.

This fixes CVE-2024-43374

0a6e57b09b

Co-authored-by: Christian Brabandt <cb@256bit.org>
2024-08-17 06:04:52 +08:00
Lewis Russell
fd65422b99 feat(diff): do not try external when out of memory
- Also merge diff_buf_idx_tp into diff_buf_idx.
2024-08-15 19:46:52 +01:00
bfredl
f926cc32c9 refactor(shada): rework msgpack decoding without msgpack-c
This also makes shada reading slightly faster due to avoiding
some copying and allocation.

Use keysets to drive decoding of msgpack maps for shada entries.
2024-08-05 11:12:44 +02:00
zeertzjq
1d4e894403 vim-patch:9.1.0469: Cannot have buffer-local value for 'completeopt'
Problem:  Cannot have buffer-local value for 'completeopt'
          (Nick Jensen).
Solution: Make 'completeopt' global-local (zeertzjq).

Also for some reason test Test_ColonEight_MultiByte seems to be failing
sporadically now. Let's mark it as flaky.

fixes: vim/vim#5487
closes: vim/vim#14922

529b9ad62a
2024-06-06 06:07:31 +08:00
zeertzjq
435dee74bb vim-patch:9.1.0374: wrong botline in BufEnter (#28530)
Problem:  When :edit an existing buffer, line('w$') may return a
          wrong result.
Solution: Reset w_valid in curwin_init() (Jaehwang Jung)

`do_ecmd()` reinitializes the current window (`curwin_init()`) whose
`w_valid` field may have `VALID_BOTLINE` set. Resetting `w_botline`
without marking it as invalid makes subsequent `validate_botline()`
calls a no-op, thus resulting in wrong `line('w$')` value.

closes: vim/vim#14642

eb80b8304e

Co-authored-by: Jaehwang Jung <tomtomjhj@gmail.com>
2024-04-27 06:32:25 +08:00
zeertzjq
b08667d4f0 vim-patch:9.1.0231: Filetype may be undetected when SwapExists sets ft in other buf (#28136)
Problem:  Filetype may be undetected when a SwapExists autocommand sets
          filetype in another buffer.
Solution: Make filetype detection state buffer-specific.  Also fix a
          similar problem for 'modified' (zeertzjq).

closes: vim/vim#14344

5bf6c2117f
2024-04-01 06:12:11 +08:00
Colin Kennedy
141182d6c6 vim-patch:9.1.0147: Cannot keep a buffer focused in a window
Problem:  Cannot keep a buffer focused in a window
          (Amit Levy)
Solution: Add the 'winfixbuf' window-local option
          (Colin Kennedy)

fixes:  vim/vim#6445
closes: vim/vim#13903

2157035637

N/A patch:
vim-patch:58f1e5c0893a
2024-03-11 11:38:13 +08:00
altermo
1c032ad703 feat(extmark): window scoped extmark
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
2024-02-21 16:11:50 +01:00
Will Hopkins
f1f8fa850f refactor: rename w_float_config to w_config #27419
Follows up on rename of `FloatConfig` to `WinConfig` in #27397.
2024-02-10 13:06:01 -08:00
Will Hopkins
44ec4b5b18 refactor: rename FloatConfig to WinConfig #27397
`FloatConfig` is no longer used only for floats, so the name is counterintuitive.

Followup to #25550
2024-02-09 08:17:10 -08:00
Will Hopkins
6bba4beced feat(api): make nvim_open_win support non-floating windows (#25550)
Adds support to `nvim_open_win` and `nvim_win_set_config` for creating
and manipulating split (non-floating) windows.
2024-02-01 11:43:35 +08:00
Jongwook Choi
5b1b765610 docs: enforce "treesitter" spelling #27110
It's the "tree-sitter" project, but "treesitter" in our code and docs.
2024-01-28 17:53:14 -08:00
bfredl
9af2be292d perf(extmarks): add metadata for efficient filtering of special decorations
This expands on the global "don't pay for what you don't use" rules for
these special extmark decorations:

- inline virtual text, which needs to be processed in plines.c when we
  calculate the size of text on screen
- virtual lines, which are needed when calculating "filler" lines
- signs, with text and/or highlights, both of which needs to be
  processed for the entire line already at the beginning of a line.

This adds a count to each node of the marktree, for how many special
marks of each kind can be found in the subtree for this node. This makes
it possible to quickly skip over these extra checks, when working in
regions of the buffer not containing these kind of marks, instead of
before where this could just be skipped if the entire _buffer_
didn't contain such marks.
2024-01-22 19:03:32 +01:00
Luuk van Baal
967c7abde3 fix(column): keep track of number of lines with number of signs
Problem:  Some edge cases to the old (pre-#26406) and current "b_signcols"
          structure result in an incorrectly sized "auto" 'signcolumn'.
Solution: * Implement a simpler 'signcolumn' validation strategy by immediately
            counting the number of signs in a range upon sign insertion and
            deletion. Decrease in performance here but there is a clear path
            forward to decreasing this performance hit by moving signs to a
            dedicated marktree, or by adding meta-data to the existing
            marktree which may be queried more efficiently?
          * Also replace "max_count" and keep track of the number of lines with
            a certain number of signs. This makes it so that it is no longer
            necessary to scan the entire buffer when the maximum number of signs
            decreases. This likely makes the commit a net increase in performance.
          * To ensure correctness we also have re-initialize the count for an
            edited region that spans multiple lines. Such an edit may move the
            signs within it. Thus we count and decrement before splicing the
            marktree and count and increment after.
2024-01-15 09:37:53 +00:00