Problem:
`:EditQuery` command accepts a language argument, but it doesn't
highlight properly for injected languages.
Solution:
- Fully parse with the root language and then filter the query on the
child trees that are of the language requested.
- Also support completion (`EditQuery <tab>`).
Now `:InspectTree` will show missing nodes as e.g. `(MISSING identifier)`
or `(MISSING ";")` rather than just `(identifier)` or `";"`. This is
doable because the `MISSING` keyword is now valid query syntax.
Co-authored-by: Christian Clason <c.clason@uni-graz.at>
Problem: When there is a tree view opened by :InspectTree and the
source buffer is open in multiple windows, closing one of the source
windows will lead to the tree view being closed as well.
Regression by #31181.
Solution: Check how many source windows are open when trying to
quit one. If there are more than one, keep the tree view(s) open.
If the only source window is closed, also close the tree view(s).
fix#31196
Problem: Quitting source buffer for ```:InspectTree``` command raises
```E855``` when source buffer and tree views are the only open buffers.
Solution: Add ```QuitPre``` event to autocmd handling closing/hiding the
source buffer to close all open tree views. This allows nvim to quit
when source and tree buffers are the only open windows.
Problem: The window opened :InspectTree or :EditQuery isn't closed when
the source buffer is unloaded, even though it is closed when
the buffer is hidden.
Solution: Also close the window on BufUnload.
Problem: For :InspectTree, indent size (`&shiftwidth`) for the tree
viewer may be incorrect.
This is because the tree viewer buffer with the filetype `query` does
not explicitly configures the tab size, which can mismatch with the
default indent size (2) assumed by TSTreeView's implementation.
Solution: Set shiftwidth to be the same as TSTreeViewOpts specifies,
which defaults to 2.
Problem:
EditQuery shows swapfile ATTENTION, but this buffer is not intended for
preservation (and the dialog breaks the UX).
Solution:
Set 'noswapfile' on the buffer before renaming it.
**Problem:** `vim.treesitter.get_parser` will throw an error if no parser
can be found.
- This means the caller is responsible for wrapping it in a `pcall`,
which is easy to forget
- It also makes it slightly harder to potentially memoize `get_parser`
in the future
- It's a bit unintuitive since many other `get_*` style functions
conventionally return `nil` if no object is found (e.g. `get_node`,
`get_lang`, `query.get`, etc.)
**Solution:** Return `nil` if no parser can be found or created
- This requires a function signature change, and some new assertions in
places where the parser will always (or should always) be found.
- This commit starts by making this change internally, since it is
breaking. Eventually it will be rolled out to the public API.
**Problem:** With anonymous nodes toggled in the inspect tree, only
named nodes will be highlighted when moving the cursor in the source
code buffer.
**Solution:** Retrieve the anonymous node at the cursor (when toggled on
in the inspect tree) and highlight them when appropriate, for better
clarity/specificity.
Problem:
1. When interacting with multiple :InspectTree and the source buffer
windows there is a high chance of errors due to the window ids not
being updated and validated.
2. Not all InspectTree windows were closed when the source buffer was
closed.
Solution:
1. Update InspectTree window id on `CursorMoved` event and validate
source buffer window id before trying to navigate to it.
2. Close all InspectTree windows
Some parsers for, e.g., LaTeX or PHP have anonymous nodes like `"\"` or `"\text"` that behave wonkily (especially the first example) in the `InspectTree` window, so this PR escapes them by adding another backslash in front of them
- Added `@inlinedoc` so single use Lua types can be inlined into the
functions docs. E.g.
```lua
--- @class myopts
--- @inlinedoc
---
--- Documentation for some field
--- @field somefield integer
--- @param opts myOpts
function foo(opts)
end
```
Will be rendered as
```
foo(opts)
Parameters:
- {opts} (table) Object with the fields:
- somefield (integer) Documentation
for some field
```
- Marked many classes with with `@nodoc` or `(private)`.
We can eventually introduce these when we want to.
Problem:
- `:InspectTree` was showing node ranges in 1-based indexing, i.e., in
vim cursor position (lnum, col). However, treesitter API adopts
0-based indexing to represent ranges (Range4). This can often be
confusing for developers and plugin authors when debugging code
written with treesiter APIs.
Solution:
- Change to 0-based indexing from 1-based indexing to show node ranges
in `:InspectTree`.
- Note: To make things not complicated, we do not provide an option or
keymap to configure which indexing mode to use.
Improve error messages for `:InspectTree`, when no parsers are available
for the current buffer and filetype. We can show more informative and
helpful error message for users (e.g., which lang was searched for):
```
... No parser available for the given buffer:
+... no parser for 'custom_ft' language, see :help treesitter-parsers
```
Also improve the relevant docs for *treesitter-parsers*.
Problem:
`LanguageTree:for_each_tree` calls itself for child nodes, so when we
calls `for_each_tree` inside `for_each_tree`, this quickly leads to
exponential tree calls.
Solution:
Use `pairs(child:trees())` directly in this case, as we don't need the
extra callback for each children, this is already handled from the outer
`for_each_tree` call
When first opened, the tree-sitter inspector traverses all of the nodes
in the buffer to calculate an array of nodes. This traversal is done
only once, and _all_ nodes (both named and anonymous) are included.
Toggling anonymous nodes in the inspector only changes how the tree is
drawn in the buffer, but does not affect the underlying data structure
at all.
When the buffer is traversed and the list of nodes is calculated, we
don't know whether or not anonymous nodes will be displayed in the
inspector or not. Thus, we cannot determine during traversal where to
put closing parentheses. Instead, this must be done when drawing.
When we draw, the tree structure has been flatted into a single array,
so we lose parent-child relationships that would otherwise make
determining the number of closing parentheses straightforward. However,
we can instead rely on the fact that a delta between the depth of a node
and the depth of the successive node _must_ mean that more closing
parentheses are required:
(foo
(bar)
(baz) ↑
│
└ (bar) and (baz) have different depths, so (bar) must have an
extra closing parenthesis
This does not depend on whether or not anonymous nodes are displayed and
so works in both cases.
Problem: Only injections under the top level tree are found.
Solution: Iterate through all trees to find injections. When two
injections are contained within the same node in the parent tree, prefer
the injection with the larger byte length.
Problem:
Treesitter highlighting is slow for large files with lots of injections.
Solution:
Only parse injections we are going to render during a redraw cycle.
---
- `LanguageTree:parse()` will no longer parse injections by default and
now requires an explicit range argument to be passed.
- `TSHighlighter` now parses injections incrementally during on_win
callbacks for the line range being rendered.
- Plugins which require certain injections to be parsed must run
`parser:parse({ start_row, end_row })` before using the tree.
