fix: refactor, wrap getordefault and invoke safely

src/dumper/struct-mapper.cs

@@ -1,8 +1,13 @@
+using CUE4Parse.UE4.Assets.Exports;
 using CUE4Parse.UE4.Assets.Objects;
 using System.Reflection;
 
 public static class StructMapper
 {
+    private static readonly MethodInfo _getOrDefaultMethod = typeof(AbstractPropertyHolder)
+        .GetMethods()
+        .First(m => m.Name == "GetOrDefault" && m.GetGenericArguments().Length == 1);
+
     public static T MapToStruct<T>(this FStructFallback fallback) where T : struct
     {
         object result = new T();
@@ -10,38 +15,17 @@ public static class StructMapper
 
         foreach (var field in fields)
         {
-            if (field.FieldType.IsArray)
-            {
-                var prop = fallback.Properties.FirstOrDefault(p => p.Name.Text == field.Name);
-                if (prop?.Tag != null)
-                {
-                    var value = prop.Tag.GetValue(field.FieldType);
-                    field.SetValue(result, value);
-                }
-                continue;
-            }
-
             try
             {
-                var method = typeof(CUE4Parse.UE4.Assets.Exports.AbstractPropertyHolder)
+                var genericMethod = _getOrDefaultMethod.MakeGenericMethod(field.FieldType);
-                    .GetMethods()
+                var value = genericMethod.Invoke(fallback, new object[] { field.Name, null!, StringComparison.Ordinal });
-                    .FirstOrDefault(m => m.Name == "GetOrDefault" && m.GetGenericArguments().Length == 1);
 
-                if (method != null)
+                if (value != null)
-                {
+                    field.SetValue(result, value);
-                    var genericMethod = method.MakeGenericMethod(field.FieldType);
-
-                    var value = genericMethod.Invoke(fallback, new object[] { field.Name, null!, StringComparison.Ordinal });
-
-                    if (value != null)
-                    {
-                        field.SetValue(result, value);
-                    }
-                }
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Mapping failed for {field.Name}: {ex.Message}");
+                Console.WriteLine($"Mapping failed for {field.Name}: {ex.InnerException?.Message ?? ex.Message}");
             }
         }