| Commit message (Collapse) | Author | Age |
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**Problem:** Tree-sitter 0.24.0 introduced a new symbol type to denote
supertype nodes (`TSSymbolTypeSupertype`). Now, `language.inspect()`
(and the query `omnifunc`) return supertype symbols, but with double
quotes around them.
**Solution:** Mark a symbol as "named" based on it *not* being an
anonymous node, rather than checking that it is a regular node (which a
supertype also is not).
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**Problems:**
- `vim.treesitter.language.inspect()` returns duplicate
symbol names, sometimes up to 6 of one kind in the case of `markdown`
- The list-like `symbols` table can have holes and is thus not even a
valid msgpack table anyway, mentioned in a test
**Solution:** Return symbols as a map, rather than a list, where field
names are the names of the symbol. The boolean value associated with the
field encodes whether or not the symbol is named.
Note that anonymous nodes are surrounded with double quotes (`"`) to
prevent potential collisions with named counterparts that have the same
identifier.
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Problem: No clear way to check whether parsers are available for a given
language.
Solution: Make `language.add()` return `true` if a parser was
successfully added and `nil` otherwise. Use explicit `assert` instead of
relying on thrown errors.
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**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.
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Problem: Installing treesitter parser is hard (harder than
climbing to heaven).
Solution: Add optional support for wasm parsers with `wasmtime`.
Notes:
* Needs to be enabled by setting `ENABLE_WASMTIME` for tree-sitter and
Neovim. Build with
`make CMAKE_EXTRA_FLAGS=-DENABLE_WASMTIME=ON
DEPS_CMAKE_FLAGS=-DENABLE_WASMTIME=ON`
* Adds optional Rust (obviously) and C11 dependencies.
* Wasmtime comes with a lot of features that can negatively affect
Neovim performance due to library and symbol table size. Make sure to
build with minimal features and full LTO.
* To reduce re-compilation times, install `sccache` and build with
`RUSTC_WRAPPER=<path/to/sccache> make ...`
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Problem:
Tests have lots of exec_lua calls which input blocks of code
provided as unformatted strings.
Solution:
Teach exec_lua how to handle functions.
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This is identical to `named_node_for_range` except that it includes
anonymous nodes. This maintains consistency in the API because we
already have `descendant_for_range` and `named_descendant_for_range`.
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Specifically, functions that are run in the context of the test runner
are put in module `test/testutil.lua` while the functions that are run
in the context of the test session are put in
`test/functional/testnvim.lua`.
Closes https://github.com/neovim/neovim/issues/27004.
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Work on https://github.com/neovim/neovim/issues/27004.
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The following top level Treesitter functions have been moved:
- vim.treesitter.inspect_language() -> vim.treesitter.language.inspect()
- vim.treesitter.get_query_files() -> vim.treesitter.query.get_files()
- vim.treesitter.set_query() -> vim.treesitter.query.set()
- vim.treesitter.query.set_query() -> vim.treesitter.query.set()
- vim.treesitter.get_query() -> vim.treesitter.query.get()
- vim.treesitter.query.get_query() -> vim.treesitter.query.get()
- vim.treesitter.parse_query() -> vim.treesitter.query.parse()
- vim.treesitter.query.parse_query() -> vim.treesitter.query.parse()
- vim.treesitter.add_predicate() -> vim.treesitter.query.add_predicate()
- vim.treesitter.add_directive() -> vim.treesitter.query.add_directive()
- vim.treesitter.list_predicates() -> vim.treesitter.query.list_predicates()
- vim.treesitter.list_directives() -> vim.treesitter.query.list_directives()
- vim.treesitter.query.get_range() -> vim.treesitter.get_range()
- vim.treesitter.query.get_node_text() -> vim.treesitter.get_node_text()
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Ignore instead
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Fixes #22473
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Simply use `pcall` if you want to silence an error.
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Problem:
vim.treesitter does not know how to map a specific filetype to a parser.
This creates problems since in a few places (including in vim.treesitter itself), the filetype is incorrectly used in place of lang.
Solution:
Add an API to enable this:
- Add vim.treesitter.language.add() as a replacement for vim.treesitter.language.require_language().
- Optional arguments are now passed via an opts table.
- Also takes a filetype (or list of filetypes) so we can keep track of what filetypes are associated with which langs.
- Deprecated vim.treesitter.language.require_language().
- Add vim.treesitter.language.get_lang() which returns the associated lang for a given filetype.
- Add vim.treesitter.language.register() to associate filetypes to a lang without loading the parser.
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This allows vim.treesitter.show_tree() to work on buffers where the
filetype does not match the parser language name e.g, bash/sh.
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Problem: Some injections (like markdown) allow specifying arbitrary
language names for code blocks, which may be lead to errors when
looking for a corresponding parser in runtime path.
Solution: Validate that the language name only contains alphanumeric
characters and `_` (e.g., for `c_sharp`) and error otherwise.
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to ease debug. At one point I had an empty filetype and the current message was not helpful enough
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Treesitter parsers are now a mandatory part of the installation and
should be tested on all platforms. Remove `pending_c_parser` helper.
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parser (#18149)
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