Refactor more things into class

class.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	_ "embed"
 	"fmt"
 	"log"
 	"os"
@@ -12,6 +13,25 @@ import (
 	"github.com/davecgh/go-spew/spew"
 )
 
+//go:embed class.tmpl
+var templatestr string
+var classTemplate *template.Template
+
+var fns = template.FuncMap{
+	"plus1": func(x int) int {
+		return x + 1
+	},
+}
+
+func init() {
+	var err error
+	classTemplate, err = template.New("class").Funcs(fns).Parse(templatestr)
+	if err != nil {
+		Error.Printf("Error parsing template: %v", err)
+		return
+	}
+}
+
 type (
 	Class struct {
 		ClassName    string

main.go

@@ -7,16 +7,12 @@ import (
 	"log"
 	"os"
 	"sync"
-	"text/template"
 
 	"github.com/davecgh/go-spew/spew"
 
 	_ "embed"
 )
 
-//go:embed class.tmpl
-var templatestr string
-
 var Error *log.Logger
 var Warning *log.Logger
 
@@ -36,12 +32,6 @@ func init() {
 	spew.Config.SortKeys = true
 }
 
-var fns = template.FuncMap{
-	"plus1": func(x int) int {
-		return x + 1
-	},
-}
-
 func main() {
 	outdir := flag.String("o", ".", "Output directory")
 	flag.Parse()
@@ -52,12 +42,6 @@ func main() {
 		return
 	}
 
-	ltemplate, err := template.New("class").Funcs(fns).Parse(templatestr)
-	if err != nil {
-		Error.Printf("Error parsing template: %v", err)
-		return
-	}
-
 	wg := sync.WaitGroup{}
 	for _, file := range files {
 		wg.Add(1)
@@ -68,7 +52,7 @@ func main() {
 				Error.Printf("Error parsing file: %v", err)
 				return
 			}
-			class.Write(*outdir, ltemplate)
+			class.Write(*outdir, classTemplate)
 		}(file)
 	}
 	wg.Wait()