src/tests-inheritance.ts

@@ -20,8 +20,8 @@ const Permissible = trait(Parent => {
         static readonly defaultPermissions: string[] = []
         permissions: string[] = []
 
-        constructor() {
-            super()
+        constructor(...args: any[]) {
+            super(...args)
             console.log("Permissible constructor")
         }
     }
@@ -42,4 +42,5 @@ class User extends UserProto {
 }
 
 const user1 = new User(1n)
-user1.equals(user1)
+console.log(user1)
+console.log(user1.equals(user1))

src/trait-inheritance.ts

@@ -36,7 +36,10 @@ export function extendsAndExpresses<
     traits: Traits,
 ) {
 
-    return extend as unknown as (
+    return traits.reduce(
+        (previous, trait) => trait(previous),
+        extend,
+    ) as (
         AbstractClass<
             InstanceType<C> &
             UnionToIntersection<