Problem:
Folds are opened when the visible range changes even if there are no
modifications to the buffer, e.g, when using zM for the first time. If
the parsed tree was invalid, on_win re-parses and gets empty tree
changes, which triggers fold updates.
Solution:
Don't update folds in on_changedtree if there are no changes.
The removes the previous restriction that nvim_buf_set_extmark()
could not be used to highlight arbitrary multi-line regions
The problem can be summarized as follows: let's assume an extmark with a
hl_group is placed covering the region (5,0) to (50,0) Now, consider
what happens if nvim needs to redraw a window covering the lines 20-30.
It needs to be able to ask the marktree what extmarks cover this region,
even if they don't begin or end here.
Therefore the marktree needs to be augmented with the information covers
a point, not just what marks begin or end there. To do this, we augment
each node with a field "intersect" which is a set the ids of the
marks which overlap this node, but only if it is not part of the set of
any parent. This ensures the number of nodes that need to be explicitly
marked grows only logarithmically with the total number of explicitly
nodes (and thus the number of of overlapping marks).
Thus we can quickly iterate all marks which overlaps any query position
by looking up what leaf node contains that position. Then we only need
to consider all "start" marks within that leaf node, and the "intersect"
set of that node and all its parents.
Now, and the major source of complexity is that the tree restructuring
operations (to ensure that each node has T-1 <= size <= 2*T-1) also need
to update these sets. If a full inner node is split in two, one of the
new parents might start to completely overlap some ranges and its ids
will need to be moved from its children's sets to its own set.
Similarly, if two undersized nodes gets joined into one, it might no
longer completely overlap some ranges, and now the children which do
needs to have the have the ids in its set instead. And then there are
the pivots! Yes the pivot operations when a child gets moved from one
parent to another.
`LanguageTree:parse` is recursive, and calls
`LanguageTree:for_each_child`, which is also recursive.
That means that, starting from the third level (child of child of root),
nodes will be parsed twice.
Which then means that if the tree is N layers deep, there will be ~2^N
parses even if the branching factor is 1.
Now, why was the tree deepening with each character inserted? And why
did this only regress in #24647? These are mysteries for another time.
Fixes: #25104
Problem:
* The guessed botline might be smaller than the actual botline e.g. when
there are folds and the user is typing in insert mode. This may result
in incorrect treesitter highlights for injections.
* botline can be larger than the last line number of the buffer, which
results in errors when placing extmarks.
Solution:
* Take a more conservative approximation. I am not sure if it is
sufficient to guarantee correctness, but it seems to be good enough
for the case mentioned above.
* Clamp it to the last line number.
Co-authored-by: Lewis Russell <me@lewisr.dev>
- Add runtime/lua/vim/vimhelp.lua, which is a translation of Vim's
runtime/import/dist/vimhelp.vim.
- Unlike Vim, run the highlighting from an ftplugin file instead of a
syntax file, so that it is run even if using treesitter.
The class `lsp.Client` has a public member `server_capabilities`,
which is assumed to be non-nil once initialized, as documented in
`:help vim.lsp.client`. Due to the possibility that it may be nil
before initialization, `lsp.Client` was not having a proper lua type
annotations on the field `server_capabilities`.
Instead of having a nil `server_capabilities` until initialized in
the RPC response callback, we can have an initial value of empty table.
This CHANGES the behavior of the `server_capabilities` field in a way
that it is no longer `nil` until initialization. Note that, as
already documented, `server_capabilities` should never be nil when
it is once initialized and thus ready to be used in user configs.
This fixes the issue where the LspNotify handlers for inlay_hint /
diagnostics would end up refreshing all attached clients.
The handler would call util._refresh, which called
vim.lsp.buf_request, which calls the method on all attached clients.
Now util._refresh takes an optional client_id parameter, which is used
to specify a specific client to update.
This commit also fixes util._refresh's handling of the `only_visible`
flag. Previously if `only_visible` was false, two requests would be made
to the server: one for the visible region, and one for the entire file.
Co-authored-by: Stanislav Asunkin <1353637+stasjok@users.noreply.github.com>
Co-authored-by: Mathias Fußenegger <mfussenegger@users.noreply.github.com>
Problem: Rexx files may not be recognised
Solution: Add shebang detection and improve disambiguation of *.cls
files
closes: vim/vim#12951e06afb7860
Co-authored-by: Doug Kearns <dougkearns@gmail.com>
Problem:
With treesitter fold, InsertLeave can be slow, because a single session
of insert mode may schedule multiple fold updates in on_bytes and
on_changedtree.
Solution:
Don't create duplicate autocmds.
Problem:
'endofline' can be used to detect if a file ends of <EOL>, however
editorconfig can break this.
Solution:
Set 'endofline' during BufWritePre
Fixes: #24869
Problem: Now way to show text at the bottom part of floating window
border (a.k.a. "footer").
Solution: Allows `footer` and `footer_pos` config fields similar to
`title` and `title_pos`.
The on_detect functions returned by filetype.lua set buffer local
variables which are often used by filetype plugins. For example, the
on_detect function for shell buffers sets variables such as b:is_bash or
b:is_sh, which are used by the sh ftplugin.
When called after setting the buffer's filetype, these variables cannot
be used by the ftplugin (because they are not yet defined). Instead,
call on_detect before setting the buffer filetype so that any buffer
variables set by on_detect can be used in the ftplugin.
Problem: cannot distinguish Forth and Fortran *.f files
Solution: Add Filetype detection Code
Also add *.4th as a Forth filetype
closes: vim/vim#1225119a3bc3add
Don't remove filetype files from Vim patches:
- filetype.vim, script.vim, ft.vim usually contain useful changes
- script.vim and ft.vim don't even have their paths spelled correctly
Co-authored-by: Doug Kearns <dougkearns@gmail.com>
