From fabbb9f53188c93939b29f62c59ff9b7bb6990b0 Mon Sep 17 00:00:00 2001
From: Bananymous <bananymousosq@gmail.com>
Date: Mon, 10 Jul 2023 09:41:39 +0300
Subject: [PATCH] BAN: RefPtr can be constructed from other types

---
 BAN/include/BAN/RefPtr.h | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/BAN/include/BAN/RefPtr.h b/BAN/include/BAN/RefPtr.h
index e717485d..9d9364a9 100644
--- a/BAN/include/BAN/RefPtr.h
+++ b/BAN/include/BAN/RefPtr.h
@@ -53,7 +53,6 @@ namespace BAN
 			if (m_pointer)
 				m_pointer->ref();
 		}
-
 		~RefPtr() { clear(); }
 
 		template<typename U>
@@ -75,6 +74,10 @@ namespace BAN
 
 		RefPtr(const RefPtr& other) { *this = other; }
 		RefPtr(RefPtr&& other) { *this = move(other); }
+		template<typename U>
+		RefPtr(const RefPtr<U>& other) { *this = other; }
+		template<typename U>
+		RefPtr(RefPtr<U>&& other) { *this = move(other); }
 
 		RefPtr& operator=(const RefPtr& other)
 		{
@@ -93,6 +96,25 @@ namespace BAN
 			return *this;
 		}
 
+		template<typename U>
+		RefPtr& operator=(const RefPtr<U>& other)
+		{
+			clear();
+			m_pointer = other.m_pointer;
+			if (m_pointer)
+				m_pointer->ref();
+			return *this;
+		}
+
+		template<typename U>
+		RefPtr& operator=(RefPtr<U>&& other)
+		{
+			clear();
+			m_pointer = other.m_pointer;
+			other.m_pointer = nullptr;
+			return *this;
+		}
+
 		T* ptr() { ASSERT(!empty()); return m_pointer; }
 		const T* ptr() const { ASSERT(!empty()); return m_pointer; }
 
@@ -114,6 +136,9 @@ namespace BAN
 
 	private:
 		T* m_pointer = nullptr;
+
+		template<typename U>
+		friend class RefPtr;
 	};
 
 }