fix from_cursor_pos for Neovim after fd1e019

doc/luasnip.txt

@@ -1,4 +1,4 @@
-*luasnip.txt*         For NeoVim 0.7-0.11         Last change: 2026 January 19
+*luasnip.txt*          For NeoVim 0.7-0.11          Last change: 2026 March 19
 
 ==============================================================================
 Table of Contents                                  *luasnip-table-of-contents*

lua/luasnip/extras/_treesitter.lua

@@ -7,6 +7,31 @@ local function get_lang(bufnr)
 	return lang
 end
 
+---Returns the parser for a specific buffer and attaches it to the buffer
+---
+---If needed, this will create the parser.
+---
+---If no parser can be created, nil (and an error message) is returned.
+---
+---This is a wrapper around Neovim's `vim.treesitter.get_parser()`, to normalize
+---the behavior of the old and new versions. The old version threw errors, the
+---new version returns them as values. This wrapper normalizes both to the new
+---version.
+---@param bufnr integer|nil Buffer the parser should be tied to (default: current buffer)
+---@param lang string|nil Language of this parser (default: from buffer filetype)
+---@param opts table|nil Options to pass to the created language tree
+---@return vim.treesitter.LanguageTree? object to use for parsing
+---@return string? error message, if applicable
+local function get_parser(bufnr, lang, opts)
+	local has_parser, parser_or_err, err =
+		pcall(vim.treesitter.get_parser, bufnr, lang, opts)
+	if not has_parser then
+		return nil, tostring(parser_or_err)
+	end
+
+	return parser_or_err, err
+end
+
 -- Inspect node
 ---@param node TSNode?
 ---@return string
@@ -85,13 +110,12 @@ function FixBufferContext:enter()
 		{ "" }
 	)
 
-	local parser, source =
-		vim.treesitter.get_parser(self.ori_bufnr), self.ori_bufnr
+	local parser = get_parser(self.ori_bufnr)
 	if parser then
 		parser:parse()
 	end
 
-	return parser, source
+	return parser, self.ori_bufnr
 end
 
 function FixBufferContext:leave()
@@ -113,12 +137,11 @@ function FixBufferContext:leave()
 		{ self.region.row + 1, self.region.col_range[2] }
 	)
 
-	local parser, source =
-		vim.treesitter.get_parser(self.ori_bufnr), self.ori_bufnr
+	local parser = get_parser(self.ori_bufnr)
 	if parser then
 		parser:parse()
 	end
-	return parser, source
+	return parser, self.ori_bufnr
 end
 
 local function capture_to_node(capture)
@@ -439,6 +462,7 @@ end
 
 return {
 	get_lang = get_lang,
+	get_parser = get_parser,
 	reparse_buffer_after_removing_match = reparse_buffer_after_removing_match,
 	TSParser = TSParser,
 	FixBufferContext = FixBufferContext,

lua/luasnip/extras/filetype_functions.lua

@@ -12,10 +12,9 @@ local function fts_from_ts_lang(lang)
 end
 
 local function from_cursor_pos()
-	-- get_parser errors if parser not present (no grammar for language).
-	local has_parser, parser = pcall(vim.treesitter.get_parser)
+	local parser = require("luasnip.extras._treesitter").get_parser()
 
-	if has_parser then
+	if parser then
 		local cursor = require("luasnip.util.util").get_cursor_0ind()
 		-- assumption: languagetree uses 0-indexed byte-ranges.
 		local lang = parser

lua/luasnip/extras/snip_location.lua

@@ -12,9 +12,10 @@ local M = {}
 -- return: 4-tuple, {start_line, start_col, end_line, end_col}, range of
 -- function-call.
 local function lua_find_function_call_node_at(bufnr, line)
-	local has_parser, parser = pcall(vim.treesitter.get_parser, bufnr, "lua")
-	if not has_parser then
-		error("Error while getting parser: " .. parser)
+	local parser, err =
+		require("luasnip.extras._treesitter").get_parser(bufnr, "lua")
+	if not parser then
+		error("Error while getting parser: " .. err)
 	end
 
 	local root = parser:parse()[1]:root()
@@ -56,9 +57,10 @@ local function range_highlight(line_start, line_end, hl_duration_ms)
 end
 
 local function json_find_snippet_definition(bufnr, filetype, snippet_name)
-	local parser_ok, parser = pcall(vim.treesitter.get_parser, bufnr, filetype)
-	if not parser_ok then
-		error("Error while getting parser: " .. parser)
+	local parser, err =
+		require("luasnip.extras._treesitter").get_parser(bufnr, filetype)
+	if not parser then
+		error("Error while getting parser: " .. err)
 	end
 
 	local root = parser:parse()[1]:root()

lua/luasnip/extras/treesitter_postfix.lua

@@ -77,7 +77,8 @@ local function make_reparse_enter_and_leave_func(
 		end
 	else
 		return function()
-			local parser = vim.treesitter.get_parser(bufnr)
+			local parser =
+				require("luasnip.extras._treesitter").get_parser(bufnr)
 			if parser then
 				parser:parse()
 			end