[Perf] use print instead of raise error directly (#61)

lua/codesnap/init.lua

@@ -27,11 +27,12 @@ local function get_config(specify_extension)
   local extension = specify_extension or get_extension()
 
   if string_utils.is_str_empty(code) then
-    error("Please select code which you want to take snapshot first")
+    error("No code is selected", 0)
+    return
   end
 
   if string_utils.is_str_empty(extension) then
-    error("Cannot detect current filetype")
+    error("Cannot detect current filetype", 0)
   end
 
   return table_utils.merge({
@@ -52,7 +53,10 @@ end
 
 function main.save_snapshot(extension)
   if string_utils.is_str_empty(static.config.save_path) then
-    error("Cannot find save_path from config")
+    error(
+      "If you want to save snapshot in somewhere, you should config the save_path before, refer: https://github.com/mistricky/codesnap.nvim?tab=readme-ov-file#save-the-snapshot",
+      0
+    )
   end
 
   require("generator").save_snapshot(get_config(extension))

plugin/codesnap.lua

@@ -1,10 +1,21 @@
 local codesnap = require("codesnap")
 
+-- The func param is a function that come from rust side, the function
+-- may raise exception to user side, the run_generator_function is used to
+-- handle these function and print it friendly
+local function run_generator_function(func)
+  xpcall(func, function(err)
+    print(err)
+  end)
+end
+
 local function take_snapshot(take_snapshot_function)
   return function(detail)
     local args = detail.fargs
 
+    run_generator_function(function()
       take_snapshot_function(args[1])
+    end)
   end
 end