...

example/program.nub

@@ -1,5 +1,16 @@
 import c;
 
-global func main() {
-    printf("something %s\n", "your mom");
+struct Human {
+    age: i64;
+    name: string;
+}
+
+global func main() {
+    me = new Human
+    {
+        age = 21;
+        name = "Oliver";
+    };
+    
+    printf("My name is %s and i am %d years old\n", me.name, me.age);
 }

src/compiler/Nub.Lang/Backend/Generator.cs

@@ -42,9 +42,11 @@ public class Generator
         return _builder.ToString();
     }
 
-    private string QbeTypeName(NubType type)
+    private static string QbeTypeName(NubType type)
     {
-        if (type is NubPrimitiveType primitiveType)
+        switch (type)
+        {
+            case NubPrimitiveType primitiveType:
             {
                 switch (primitiveType.Kind)
                 {
@@ -69,13 +71,22 @@ public class Generator
                         throw new ArgumentOutOfRangeException();
                 }
             }
-
+            case NubCustomType nubCustomType:
+            {
+                return "l";
+            }
+            default:
+            {
                 throw new NotImplementedException();
             }
+        }
+    }
 
-    private int QbeTypeSize(NubType type)
+    private static int QbeTypeSize(NubType type)
     {
-        if (type is NubPrimitiveType primitiveType)
+        switch (type)
+        {
+            case NubPrimitiveType primitiveType:
             {
                 switch (primitiveType.Kind)
                 {
@@ -100,9 +111,16 @@ public class Generator
                         throw new ArgumentOutOfRangeException();
                 }
             }
-
+            case NubCustomType nubCustomType:
+            {
+                return 8;
+            }
+            default:
+            {
                 throw new NotImplementedException();
             }
+        }
+    }
 
     private void GenerateFuncDefinition(LocalFuncDefinitionNode node)
     {