Implement parsing functions partially

function.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	_ "embed"
+	"fmt"
 	"log"
 	"os"
 	"text/template"
@@ -17,6 +18,7 @@ var fns = template.FuncMap{
 var templatestr string
 
 var functionTemplate *template.Template
+
 func init() {
 	var err error
 	functionTemplate, err = template.New("class").Funcs(fns).Parse(templatestr)
@@ -30,10 +32,10 @@ func init() {
 type (
 	Function struct {
 		Name      string
-		Arguments []Argument
-		Returns   []Argument
+		Arguments []Parameter
+		Returns   []Parameter
 	}
-	Argument struct {
+	Parameter struct {
 		Name        string
 		Type        string
 		Description string
@@ -44,15 +46,19 @@ func (f *Function) ResolveFileName() string {
 	return f.Name + ".lua"
 }
 func (f *Function) WriteFile() error {
+	if f.Name == "" {
+		return fmt.Errorf("function name is empty of %+v", f)
+	}
+
 	file, err := os.Create(f.ResolveFileName())
 	if err != nil {
 		return err
 	}
 	defer file.Close()
-	
+
 	err = functionTemplate.Execute(file, f)
 	if err != nil {
 		return err
 	}
 	return nil
-}
+}