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* fix(api): leaked error message in nvim_win_set_buf() #41688Volodymyr Chernetskyi2026-09-04
| | | | | | | | | | | | | | Problem: Both handle lookups write into the same `Error` before either one is checked, and `api_set_error()` unconditionally `xmalloc`s `err->msg` without freeing what is already there. When both handles are invalid, the message allocated for the window is silently overwritten by the one for the buffer and leaked. Solution: Check the window before looking up the buffer. As a side effect the reported error no longer names the buffer when the window was wrong too. AI-assisted
* fix(ctx): coverity CHECKED_RETURNJustin M. Keyes2026-07-12
| | | | | | | | | | | | | | | | | | | CID 649145: Error handling issues CHECKED_RETURN /src/nvim/api/window.c: 138 in nvim_win_set_cursor() 132 // Make sure we stick in this column. 133 w->w_set_curswant = true; 134 135 // make sure cursor is in visible range and 136 // cursorcolumn and cursorline are updated even if w != curwin 137 CtxSwitch switchwin; >>> CID 649145: Error handling issues (CHECKED_RETURN) >>> Calling "ctx_switch" without checking return value (as is done elsewhere 5 out of 6 times). 138 ctx_switch(&switchwin, w, NULL, NULL, kCtxNoEvents | kCtxNoDisplay); 139 update_topline(curwin); 140 validate_cursor(curwin); 141 ctx_restore(&switchwin); 142 143 redraw_later(w, UPD_VALID);
* refactor(ctx): drop switch_win/restore_win #40693Justin M. Keyes2026-07-11
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* refactor(cmdpreview): lift undo-checkpoint codeJustin M. Keyes2026-07-10
| | | | | This is a mechanical lift of undo save-and-restore logic into... the module that owns undo.
* refactor: unify context-switching conceptsJustin M. Keyes2026-07-10
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* fix(api): nvim_win_resize tweaks #40596Justin M. Keyes2026-07-05
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* Merge #40520 nvim_win_resizeJustin M. Keyes2026-07-05
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| * feat(api): add nvim_win_resize()XiaowenHu962026-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ref #6645 Problem: When a window is resized it takes space from the window right/below first, and only falls back to the window left/above when there is no more room. Sometimes a user wants the space to come from a specific direction. Solution: Add nvim_win_resize(win, width, height, {anchor}) which resizes a window with a choosable anchor edge, letting a window grow leftwards or upwards by taking space from the window to the left or above first. The default anchor reproduces nvim_win_set_width()/nvim_win_set_height().
* | feat(cmdwin): implement cmdwin as a normal buf+winJustin M. Keyes2026-06-25
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: cmdwin (the `:q` cmdline buffer) has various limitations which require special-casing all over the codebase. Besides complicating the code, it also breaks async plugins if they try to create buffers/windows after some work is done, if the user happens to open cmdwin at the wrong the moment: Lua callback: …/guh.nvim/lua/guh/util.lua:531: E11: Invalid in command-line window; <CR> executes, CTRL-C quits stack traceback: [C]: in function 'nvim_buf_delete' …/guh.nvim/lua/guh/util.lua:531: in function <…/guh.nvim/lua/guh/util.lua:526> Solution: Just say no to "inception". Reimplement cmdwin as a normal buffer+window. All of the cmdwin contortions (in both core, and innocent plugins) exist literally only to support "inception": recursive cmdwin-in-cmdline-things, like `<c-r>=`, `/`, search-during-substitute, `:input()`, etc. So we just won't support that (though I have a potential plan for that later, which I call "modal parking lot"). The benefit is that plugins, and core, no longer have to care about cmdwin. BONUS: - mouse-drag on vertical separators works (it only worked for horizontal/statusline before) - inccommand-in-cmdwin now works correctly, for free (thus don't need #40077). POTENTIAL FOLLOWUPS - Drop `CHECK_CMDWIN` ("E11: Invalid in command-line window"), allow chaos. - Unify `BUFLOCK_OK` / `LOCK_OK` ? DESIGN: - Eliminate lots of C globals, `EX_CMDWIN`, etc. - `text_locked()` no longer reports true for cmdwin. - cmdwin = a normal window with 'winfixbuf', 'bufhidden=wipe', 'buftype=nofile'. Invariants come from those options rather than special cases throughout the codebase. - `nv_record` for q:/q//q? calls Lua `nlua_call_vimfn("vim._core.cmdwin", …)`. No `K_CMDWIN` / cmdline-reader detour. - `cedit_key` (`c_CTRL-F`) schedules a deferred event that calls `vim._core.cmdwin.open(type, content, pos)` and returns `Ctrl_C` so the in-flight cmdline cancels. Reader state is not serialized; instead the captured `(type, line, col)` is replayed via `nvim_feedkeys(type..line.."<CR>", "nt", …)` after user confirms. - On confirm/cancel: `<CR>` / `<C-C>` calls into Lua which closes the window and re-feeds the cmdline. BREAKING CHANGES: - Expression-register cmdline (`<C-R>=` from insert-mode) no longer supports cmdwin. Same applies to `input()` / `inputlist()` (already covered by `text_locked`). - Usage of cmdwin in macros/mappings will probably break (assuming they ever worked).
* docs: misc, options, pos/rangeJustin M. Keyes2026-05-30
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* refactor: group nvim_buf_call, nvim_win_call tests #39828Justin M. Keyes2026-05-17
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* feat(api): nvim_buf_call, win_call can has multiple return values #39801bfredl2026-05-17
| | | | | | from the "because we can and it is not much code" department. (diffcount excluding tests is actually negative) fixes https://github.com/neovim/neovim/issues/39636#issuecomment-4397141270
* docs: sort quasi-keysetsJustin M. Keyes2026-04-26
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* refactor(api): rename "window" to "win" (positional parameters) #39083Justin M. Keyes2026-04-15
| | | | | | | continues d0af4cd9094f. This commit renames positional parameters. This is only "cosmetic", but is intended to make it extra clear which name is preferred, since people often copy existing code despite the guidelines in `:help dev-naming`.
* refactor(api): rename buffer to buf (positional parameters) #39013Justin M. Keyes2026-04-15
| | | | | | | | In 3a4a66017b74, 4d3a67cd6201, df8d98173cbc we renamed "buffer" to "buf" in dict parameters and return-values. This commit renames positional parameters. This is only "cosmetic", but is intended to make it extra clear which name is preferred, since people often copy existing code despite the guidelines in `:help dev-naming`.
* fix(api): use standard error messagesJustin M. Keyes2026-03-16
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* docs(api): clarify nvim_win_set_buf documentation #37201Marc Jakobi2026-03-06
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* fix(highlight): setting 'winhl' doesn't work with global ns (#37868)zeertzjq2026-02-15
| | | | | | Problem: Setting 'winhighlight' doesn't after setting global namespace using nvim_win_set_hl_ns(). Solution: Check if using another namespace when setting 'winhighlight' instead of disabling 'winhighlight' in nvim_win_set_hl_ns().
* refactor(build): remove INCLUDE_GENERATED_DECLARATIONS guardsbfredl2025-08-14
| | | | | | | | | 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.
* fix(window): handle closing the only non-float in other tabpageSean Dewar2025-07-22
| | | | | | | | | | | | | | Problem: No check for closing the only non-floating window in a non-current tabpage that contains floats. This can lead to a tabpage that contains only floats, causing crashes. Solution: Copy the relevant check from win_close to win_close_othertab. Fix some uncovered issues. Closes #34943 Fixes #31236 Co-authored-by: glepnir <glephunter@gmail.com>
* docs(api): document types using LuaCATS typesLewis Russell2025-06-26
| | | | | | | | | | | | | | | | | | | | - Render Lua types in api.txt. - Added `DictAs(name)` API type which acts the same as `Dict` (no parens) when generating the dispatchers, but acts the same as `Dict(name)` when generating docs. - Added `Tuple(...)` API type which is the treated the as `Array` for generating the dispatchers, but is used to document richer types. - Added `Enum(...)` API type to better document enums - Improve typing of some API functions. - Improve c_grammar to properly parse API types and replace string pattern logic in the parsers. - Removed all the hardcoded type overrides in gen_eval_files.lua
* feat(api): add "max_height" argument to nvim_win_text_height (#32835)luukvbaal2025-04-21
| | | | | Useful to e.g. limit the height to the window height, avoiding unnecessary work. Or to find out how many buffer lines beyond "start_row" take up a certain number of logical lines (returned in "end_row" and "end_vcol").
* docs(api): rename "handle" => "id"Justin M. Keyes2025-03-17
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* doc: clarify window-id, tab-id, nvim_set_current_x #32528David Briscoe2025-02-27
| | | | | | | | | | | | | | Problem: Descriptions are somewhat vague. nvim_set_current_line modifies contents but nvim_set_current_buf does not, etc. Solution: - Make it clear that these functions accept or return a winid/tabid by linking to that concept in help. - Only these few files use the term "handles", so replace them with the more conventional terminology. - Add a new help section for tab-ID. This concept is unique to neovim because vim exposes tabnr, but not tab handles. This section is modelled after `:h winid`.
* refactor: iwyu #31637Justin M. Keyes2024-12-23
| | | Result of `make iwyu` (after some "fixups").
* refactor(api): always use TRY_WRAP #31600luukvbaal2024-12-17
| | | | | | | Problem: Two separate try/end wrappers, that only marginally differ by restoring a few variables. Wrappers that don't restore previous state are dangerous to use in "api-fast" functions. Solution: Remove wrappers that don't restore the previous state. Always use TRY_WRAP.
* fix(api): generic error messages, not using TRY_WRAP #31596Justin M. Keyes2024-12-16
| | | | | | | | | | | Problem: - API functions using `try_start` directly, do not surface the underlying error message, and instead show generic messages. - Error-handling code is duplicated in the API impl. - Failure modes are not tested. Solution: - Use `TRY_WRAP`. - Add tests.
* fix(api): not using TRY_WRAP, generic error messages #31595Justin M. Keyes2024-12-16
| | | | | | | | | | | Problem: - API functions using `try_start` directly instead of `TRY_WRAP`, do not surface the underlying error message, and instead show generic things like "Failed to set buffer". - Error handling code is duplicated in the API impl, instead of delegating to the vim buffer/window handling logic. Solution: - Use `TRY_WRAP`.
* fix(api): nvim_win_set_buf(0, 0) fails if 'winfixbuf' is set #31576phanium2024-12-16
| | | | | | | | | | | | ## Problem With 'winfixbuf' enabled, `nvim_win_set_buf` and `nvim_set_current_buf` fail even if targeting the already-current buffer. vim.wo.winfixbuf = true vim.api.nvim_win_set_buf(0, 0) vim.api.nvim_set_current_buf(0) Solution: Check for this condition.
* fix(highlight): 'winhl' shouldn't take priority over API (#31288)zeertzjq2024-11-22
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* refactor(api)!: rename Dictionary => DictJustin M. Keyes2024-09-23
| | | | | | | | | | | | | | 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.
* refactor: move shared messages to errors.h #26214Justin M. Keyes2024-06-01
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* fix(api): do not update grid position in nvim_win_set_cursor (#28235)luukvbaal2024-04-21
| | | | Revert commit c971f538ab87b537ae4c97bd44167661c5691a2d. Forcing grid cursor position will need a new API like originally proposed in #27858.
* feat(api)!: nvim_open_win: noautocmd blocks all autocmds #28192Sean Dewar2024-04-14
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem: noautocmd is confusing; despite its name, it doesn't block all autocommands (instead it blocks only those related to setting the buffer), and is commonly used by plugins to open windows while producing minimal side-effects. Solution: be consistent and block all autocommands when noautocmd is set. This includes WinNew (again), plus autocommands from entering the window (if enter is set) like WinEnter, WinLeave, TabEnter, .etc. See the discussion at https://github.com/neovim/neovim/pull/14659#issuecomment-2040029517 for more information. Remove win_set_buf's noautocmd argument, as it's no longer needed. NOTE: pum_create_float_preview sets noautocmd for win_set_buf, but all its callers already use block_autocmds. Despite that, pum_create_float_preview doesn't actually properly handle autocommands (it has no checks for whether those from win_enter or nvim_create_buf free the window). For now, ensure autocommands are blocked within it for correctness (in case it's ever called outside of a block_autocmds context; the function seems to have been refactored in #26739 anyway).
* fix(api): update grid cursor in nvim_win_set_cursor()Luuk van Baal2024-03-15
| | | | | | Problem: Cursor position set by nvim_win_set_cursor() is not reflected on the screen when followed by a blocking call like getchar(). Solution: Immediately update the cursor position on the grid.
* fix(api/buffer): fix handling of viewport of non-current bufferbfredl2024-03-13
| | | | | | | | | | | A lot of functions in move.c only worked for curwin, alternatively took a `wp` arg but still only work if that happens to be curwin. Refactor those that are needed for update_topline(wp) to work for any window. fixes #27723 fixes #27720
* vim-patch:9.1.0147: Cannot keep a buffer focused in a windowColin Kennedy2024-03-11
| | | | | | | | | | | | | | | 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 https://github.com/vim/vim/commit/215703563757a4464907ead6fb9edaeb7f430bea N/A patch: vim-patch:58f1e5c0893a
* feat(docs): replace lua2dox.luaLewis Russell2024-02-27
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem: The documentation flow (`gen_vimdoc.py`) has several issues: - it's not very versatile - depends on doxygen - doesn't work well with Lua code as it requires an awkward filter script to convert it into pseudo-C. - The intermediate XML files and filters makes it too much like a rube goldberg machine. Solution: Re-implement the flow using Lua, LPEG and treesitter. - `gen_vimdoc.py` is now replaced with `gen_vimdoc.lua` and replicates a portion of the logic. - `lua2dox.lua` is gone! - No more XML files. - Doxygen is now longer used and instead we now use: - LPEG for comment parsing (see `scripts/luacats_grammar.lua` and `scripts/cdoc_grammar.lua`). - LPEG for C parsing (see `scripts/cdoc_parser.lua`) - Lua patterns for Lua parsing (see `scripts/luacats_parser.lua`). - Treesitter for Markdown parsing (see `scripts/text_utils.lua`). - The generated `runtime/doc/*.mpack` files have been removed. - `scripts/gen_eval_files.lua` now instead uses `scripts/cdoc_parser.lua` directly. - Text wrapping is implemented in `scripts/text_utils.lua` and appears to produce more consistent results (the main contributer to the diff of this change).
* refactor(api): use an arena for mappingsbfredl2024-02-18
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* refactor(eval): use arena when converting typvals to Objectbfredl2024-02-15
| | | | | | | | | | | | Note: this contains two _temporary_ changes which can be reverted once the Arena vs no-Arena distinction in API wrappers has been removed. Both nlua_push_Object and object_to_vim_take_luaref() has been changed to take the object argument as a pointer. This is not going to be necessary once these are only used with arena (or not at all) allocated Objects. The object_to_vim() variant which leaves luaref untouched might need to stay for a little longer.
* refactor(lua): use Arena when converting from lua stack to API argsbfredl2024-02-13
| | | | | | | | | | | | and for return value of nlua_exec/nlua_call_ref, as this uses the same family of functions. NB: the handling of luaref:s is a bit of a mess. add api_luarefs_free_XX functions as a stop-gap as refactoring luarefs is a can of worms for another PR:s. as a minor feature/bug-fix, nvim_buf_call and nvim_win_call now preserves arbitrary return values.
* vim-patch:9.1.0047: issues with temp curwin/buf while cmdwin is openSean Dewar2024-01-28
| | | | | | | | | | | | | | | | | Problem: Things that temporarily change/restore curwin/buf (e.g: win_execute, some autocmds) may break assumptions that curwin/buf is the cmdwin when "cmdwin_type != 0", causing issues. Solution: Expose the cmdwin's real win/buf and check that instead. Also try to ensure these variables are NULL if "cmdwin_type == 0", allowing them to be used directly in most cases without checking cmdwin_type. (Sean Dewar) Reset and save `cmdwin_old_curwin` in a similar fashion. Apply suitable changes for API functions and add Lua tests. https://github.com/vim/vim/commit/988f74311c26ea9917e84fbae608de226dba7e5f
* refactor(IWYU): fix headersdundargoc2024-01-11
| | | | | | 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.
* refactor: split WIN_EXECUTE() into two functions (#26627)zeertzjq2023-12-18
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* build: don't define FUNC_ATTR_* as empty in headers (#26317)zeertzjq2023-11-30
| | | | | | 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.
* refactor: rename types.h to types_defs.hdundargoc2023-11-27
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* refactor: fix includes for api/autocmd.hdundargoc2023-11-27
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* build(IWYU): export generated headersdundargoc2023-11-27
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* build(IWYU): fix includes for undo_defs.hdundargoc2023-11-27
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* build(IWYU): fix includes for func_attr.hdundargoc2023-11-27
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