From 7b88be3a7519df39a1e2bea5dd0f26e58be2610a Mon Sep 17 00:00:00 2001
From: Rainer Killinger <killinger@hrz.uni-frankfurt.de>
Date: Fri, 27 May 2022 15:21:59 +0200
Subject: [PATCH] refactor: initalize meta classes in translator

---
 src/translator.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/translator.ts b/src/translator.ts
index 4a6d10e3..727f7920 100644
--- a/src/translator.ts
+++ b/src/translator.ts
@@ -77,6 +77,13 @@ export class SCThingTranslator {
     this.sourceCache = new LRUCache(cacheCapacity);
     this._language = language;
     this.metaClasses = SCClasses;
+
+    // Initalize all meta classes once
+    if (typeof (this.metaClasses as any)[Object.keys(this.metaClasses)[0]] === 'function') {
+      for (const metaClass of Object.keys(this.metaClasses)) {
+        (this.metaClasses as any)[metaClass] = new (SCClasses as any)[metaClass]();
+      }
+    }
   }
 
   /**
@@ -143,7 +150,7 @@ export class SCThingTranslator {
    */
   private getMetaClassInstance(thingType: SCThingType): any {
     if (thingType in this.metaClasses) {
-      return new (this.metaClasses as any)[thingType]();
+      return this.metaClasses[thingType];
     }
 
     return undefined;