Import all this stuff into a single repo called Serenity.

AK/OwnPtr.h

@@ -0,0 +1,94 @@
+#pragma once
+
+#include <cstddef>
+#include <utility>
+
+namespace AK {
+
+template<typename T>
+class OwnPtr {
+public:
+    OwnPtr() { }
+    explicit OwnPtr(T* ptr) : m_ptr(ptr) { }
+    OwnPtr(OwnPtr&& other) : m_ptr(other.leakPtr()) { }
+    template<typename U> OwnPtr(OwnPtr<U>&& other) : m_ptr(static_cast<T*>(other.leakPtr())) { }
+    ~OwnPtr() { clear(); }
+    OwnPtr(std::nullptr_t) { };
+
+    OwnPtr& operator=(OwnPtr&& other)
+    {
+        if (this != &other) {
+            delete m_ptr;
+            m_ptr = other.leakPtr();
+        }
+        return *this;
+    }
+
+    template<typename U>
+    OwnPtr& operator=(OwnPtr<U>&& other)
+    {
+        if (this != static_cast<void*>(&other)) {
+            delete m_ptr;
+            m_ptr = other.leakPtr();
+        }
+        return *this;
+    }
+
+    OwnPtr& operator=(T* ptr)
+    {
+        if (m_ptr != ptr)
+            delete m_ptr;
+        m_ptr = ptr;
+        return *this;
+    }
+
+    OwnPtr& operator=(std::nullptr_t)
+    {
+        clear();
+        return *this;
+    }
+
+    void clear()
+    {
+        delete m_ptr;
+        m_ptr = nullptr;
+    }
+
+    bool operator!() const { return !m_ptr; }
+
+    typedef T* OwnPtr::*UnspecifiedBoolType;
+    operator UnspecifiedBoolType() const { return m_ptr ? &OwnPtr::m_ptr : nullptr; }
+
+    T* leakPtr()
+    {
+        T* leakedPtr = m_ptr;
+        m_ptr = nullptr;
+        return leakedPtr;
+    }
+
+    T* ptr() { return m_ptr; }
+    const T* ptr() const { return m_ptr; }
+
+    T* operator->() { return m_ptr; }
+    const T* operator->() const { return m_ptr; }
+
+    T& operator*() { return *m_ptr; }
+    const T& operator*() const { return *m_ptr; }
+
+    operator bool() { return !!m_ptr; }
+
+private:
+    T* m_ptr = nullptr;
+};
+
+template<class T, class... Args> inline OwnPtr<T>
+make(Args&&... args)
+{
+    return OwnPtr<T>(new T(std::forward<Args>(args)...));
+}
+
+}
+
+using AK::OwnPtr;
+using AK::make;
+