feat(treesitter): improved logging (#23638)

- Add bindings to Treesitter ts_parser_set_logger and ts_parser_logger
- Add logfile with path STDPATH('log')/treesitter.c
- Rework existing LanguageTree loggin to use logfile
- Begin implementing log levels for vim.g.__ts_debug

1 files changed, 4 insertions, 0 deletions

diff --git a/runtime/lua/vim/treesitter/_meta.lua b/runtime/lua/vim/treesitter/_meta.lua
index c1009f5f5d..9ca4b560c6 100644
--- a/runtime/lua/vim/treesitter/_meta.lua
+++ b/runtime/lua/vim/treesitter/_meta.lua
@@ -45,6 +45,8 @@ function TSNode:_rawquery(query, captures, start, end_, opts) end
 ---@return fun(): string, any
 function TSNode:_rawquery(query, captures, start, end_, opts) end
 
+---@alias TSLoggerCallback fun(logtype: 'parse'|'lex', msg: string)
+
 ---@class TSParser
 ---@field parse fun(self: TSParser, tree: TSTree?, source: integer|string, include_bytes: boolean?): TSTree, integer[]
 ---@field reset fun(self: TSParser)
@@ -52,6 +54,8 @@ function TSNode:_rawquery(query, captures, start, end_, opts) end
 ---@field set_included_ranges fun(self: TSParser, ranges: Range6[])
 ---@field set_timeout fun(self: TSParser, timeout: integer)
 ---@field timeout fun(self: TSParser): integer
+---@field _set_logger fun(self: TSParser, lex: boolean, parse: boolean, cb: TSLoggerCallback)
+---@field _logger fun(self: TSParser): TSLoggerCallback
 
 ---@class TSTree
 ---@field root fun(self: TSTree): TSNode