From 3802ca557c56ddc776bcb03e652fc132f7ca9fd6 Mon Sep 17 00:00:00 2001
From: Anders Ejlersen <anders@ejlersen.info>
Date: Wed, 27 May 2026 19:17:55 +0200
Subject: [PATCH] Validator: Duplicate component validator is now only run on
 types without DisallowMultipleComponent attribute

---
 .../GameObjectValidatorDuplicateComponents.cs       | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/Editor/Validators/GameObject/GameObjectValidatorDuplicateComponents.cs b/Editor/Validators/GameObject/GameObjectValidatorDuplicateComponents.cs
index 1ea0509..eaf89a1 100644
--- a/Editor/Validators/GameObject/GameObjectValidatorDuplicateComponents.cs
+++ b/Editor/Validators/GameObject/GameObjectValidatorDuplicateComponents.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Reflection;
 using UnityEngine;
 using UnityEngine.Pool;
 
@@ -28,7 +30,7 @@ namespace Module.ProjectValidator.Editor
                 }
                 else
                 {
-                    if (count > 1)
+                    if (count > 1 && IsMultipleComponentsAllowed(type))
                         results.Add(ValidatorResult.Create(EValidatorSeverity.Warning, $"GameObject has duplicate '{type.Name}' ({count}) components"));
                     
                     type = t;
@@ -36,8 +38,13 @@ namespace Module.ProjectValidator.Editor
                 }
             }
             
-            if (count > 1)
+            if (count > 1 && IsMultipleComponentsAllowed(type))
                 results.Add(ValidatorResult.Create(EValidatorSeverity.Warning, $"GameObject has duplicate '{type.Name}' ({count}) components"));
         }
+
+        private static bool IsMultipleComponentsAllowed(Type type)
+        {
+            return type.GetCustomAttribute<DisallowMultipleComponent>(true) == null;
+        }
     }
 }
\ No newline at end of file