fix: telescope picker shows symbols in order (#169)

lua/aerial/util.lua

@@ -390,6 +390,20 @@ M.throttle = function(func, opts)
   end
 end
 
+---@generic T : any
+---@param tbl T[]
+---@return T[]
+M.tbl_reverse = function(tbl)
+  local len = #tbl
+  for i = 1, math.floor(len / 2) do
+    local j = len - i + 1
+    local swp = tbl[i]
+    tbl[i] = tbl[j]
+    tbl[j] = swp
+  end
+  return tbl
+end
+
 M.get_filetypes = config.get_filetypes
 
 return M

lua/telescope/_extensions/aerial.lua

@@ -1,6 +1,7 @@
 local backends = require("aerial.backends")
 local config = require("aerial.config")
 local data = require("aerial.data")
+local util = require("aerial.util")
 
 local conf = require("telescope.config").values
 local entry_display = require("telescope.pickers.entry_display")
@@ -88,6 +89,10 @@ local function aerial_picker(opts)
       end
     end
   end
+
+  -- Reverse the symbols so they have the same top-to-bottom order as in the file
+  util.tbl_reverse(results)
+  default_selection_index = #results - (default_selection_index - 1)
   pickers
     .new(opts, {
       prompt_title = "Document Symbols",