Merge branch 'master' into multi_loading

lua/navigator/definition.lua

@@ -52,10 +52,16 @@ local function def_preview(timeout_ms)
   -- result = {vim.tbl_deep_extend("force", {}, unpack(result))}
   -- log("def-preview", result)
   for key, value in pairs(result) do
-    if result[key] ~= nil then
+    if result[key] ~= nil and not vim.tbl_isempty(result[key]) then
       table.insert(data, value.result[1])
     end
   end
+
+  if vim.tbl_isempty(data) then
+    print("No result found: " .. method)
+    return nil
+  end
+
   local range = data[1].targetRange or data[1].range
 
   local row = range.start.line

lua/navigator/implementation.lua

@@ -10,14 +10,14 @@ local log = util.log
 -- dataformat should be same as reference
 local function location_handler(err, locations, ctx, cfg, msg)
   if err ~= nil then
-    print("ERROR: " .. tostring(err) .. msg)
+    print("ERROR: " .. tostring(err) .. " " .. msg)
     return
   end
   return locations_to_items(locations)
 end
 
 local function implementation_handler(bang, err, result, ctx, cfg)
-  local results = location_handler(err, result, ctx, "Implementation not found")
+  local results = location_handler(err, result, ctx, cfg, "Implementation not found")
   local ft = vim.api.nvim_buf_get_option(ctx.bufnr, "ft")
   gui.new_list_view({items = results, ft = ft, api = 'Implementation'})
 end