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feat(treesitter): async parsing

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**Problem:** Parsing can be slow for large files, and it is a blocking
operation which can be disruptive and annoying.

**Solution:** Provide a function for asynchronous parsing, which accepts
a callback to be run after parsing completes.

Co-authored-by: Lewis Russell <lewis6991@gmail.com>
Co-authored-by: Luuk van Baal <luukvbaal@gmail.com>
Co-authored-by: VanaIgr <vanaigranov@gmail.com>
This commit is contained in:
Riley Bruins
2024-12-18 10:48:33 -08:00
parent 3fdc430241
commit 45e606b1fd
11 changed files with 395 additions and 41 deletions
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8
runtime/lua/vim/treesitter.lua
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@@ -61,7 +61,7 @@ function M._create_parser(bufnr, lang, opts)
{ on_bytes = bytes_cb, on_detach = detach_cb, on_reload = reload_cb, preview = true }
)
self:parse()
self:parse(nil, function() end)
return self
end
@@ -397,6 +397,8 @@ end
--- Note: By default, disables regex syntax highlighting, which may be required for some plugins.
--- In this case, add `vim.bo.syntax = 'on'` after the call to `start`.
---
--- Note: By default, the highlighter parses code asynchronously, using a segment time of 3ms.
---
--- Example:
---
--- ```lua
@@ -408,8 +410,8 @@ end
--- })
--- ```
---
---@param bufnr (integer|nil) Buffer to be highlighted (default: current buffer)
---@param lang (string|nil) Language of the parser (default: from buffer filetype)
---@param bufnr integer? Buffer to be highlighted (default: current buffer)
---@param lang string? Language of the parser (default: from buffer filetype)
function M.start(bufnr, lang)
bufnr = vim._resolve_bufnr(bufnr)
local parser = assert(M.get_parser(bufnr, lang, { error = false }))