Merge pull request #23 from vigoux/feature/textobjects

Node and scope text objects

1 files changed, 17 insertions, 0 deletions

diff --git a/lua/nvim-treesitter/utils.lua b/lua/nvim-treesitter/utils.lua
index 59de5dd5..391863f0 100644
--- a/lua/nvim-treesitter/utils.lua
+++ b/lua/nvim-treesitter/utils.lua
@@ -1,6 +1,7 @@
 -- Utils collection for nvim-treesitter
 local api = vim.api
 local parsers = require'nvim-treesitter.parsers'
+local locals = require'nvim-treesitter.locals'
 
 local M = {}
 
@@ -76,4 +77,20 @@ function M.setup_commands(mod, commands)
   end
 end
 
+--- Gets the smallest scope which contains @param node
+function M.smallest_containing_scope(node, bufnr)
+  local bufnr = bufnr or api.nvim_get_current_buf()
+
+  local root = parsers.get_parser(bufnr):parse():root()
+  if not node then return root end
+
+  local scopes = locals.get_scopes(bufnr)
+  local current = node
+  while current ~= nil and not vim.tbl_contains(scopes, current) do
+    current = current:parent()
+  end
+
+  return current or root
+end
+
 return M