lazyvim: foldexpr using treesitter if available

[dotfiles.git] / nvim / lua / rmz / util / init.lua

diff --git a/nvim/lua/rmz/util/init.lua b/nvim/lua/rmz/util/init.lua
index 8c21c0974647e7d8c9cf06ad98334add8677909c..abf0c2130696a451af9a400b1e93e07d88e61089 100644 (file)
--- a/nvim/lua/rmz/util/init.lua
+++ b/nvim/lua/rmz/util/init.lua
@@ -1,5 +1,9 @@
 ---@class rmz.util
-local M = {}
+local M = {
+  ui  = require("rmz.util.ui"),
+  lazy = require("rmz.util.lazy"),
+  lsp = require("rmz.util.lsp"),
+}
 
 --- Deduplicates a list.
 ---@generic T
@@ -17,4 +21,21 @@ function M.dedup(list)
   return ret
 end
 
+function M.foldexpr()
+  local buf = vim.api.nvim_get_current_buf()
+  if vim.b[buf].ts_folds == nil then
+    -- as long as we don't have a filetype, don't bother
+    -- checking if treesitter is available (it won't)
+    if vim.bo[buf].filetype == "" then
+      return "0"
+    end
+    if vim.bo[buf].filetype:find("dashboard") then
+      vim.b[buf].ts_folds = false
+    else
+      vim.b[buf].ts_folds = pcall(vim.treesitter.get_parser, buf)
+    end
+  end
+  return vim.b[buf].ts_folds and vim.treesitter.foldexpr() or "0"
+end
+
 return M