diff --git a/include/common.h b/include/common.h
index a9b5daf..fddfd9f 100644
--- a/include/common.h
+++ b/include/common.h
@@ -31,6 +31,32 @@ constexpr bool x64 = false;
 
 template <typename T> using Array = T[];
 
+template <auto F> using Functor = std::integral_constant<std::decay_t<decltype(F)>, F>;
+
+template <typename V>
+struct Identity { V operator()(V v) const { return v; } };
+
+struct PermissivePointer
+{
+	template <typename T>
+	operator T*() { return (T*)p; }
+	void* p;
+};
+
+template <typename HandleCloser = Functor<CloseHandle>>
+class AutoHandle
+{
+public:
+	AutoHandle(HANDLE h) : h(h) {}
+	operator HANDLE() { return h.get(); }
+	PHANDLE operator&() { static_assert(sizeof(*this) == sizeof(HANDLE)); assert(!h); return (PHANDLE)this; }
+	operator bool() { return h.get() != NULL && h.get() != INVALID_HANDLE_VALUE; }
+
+private:
+	struct HandleCleaner { void operator()(void* h) { if (h != INVALID_HANDLE_VALUE) HandleCloser()(PermissivePointer{ h }); } };
+	std::unique_ptr<void, HandleCleaner> h;
+};
+
 template<typename T, typename M = std::mutex>
 class Synchronized
 {
@@ -53,23 +79,6 @@ private:
 	M m;
 };
 
-template <auto F>
-using Functor = std::integral_constant<std::decay_t<decltype(F)>, F>;
-
-template <typename HandleCloser = Functor<CloseHandle>>
-class AutoHandle
-{
-public:
-	AutoHandle(HANDLE h) : h(h) {}
-	operator HANDLE() { return h.get(); }
-	PHANDLE operator&() { static_assert(sizeof(*this) == sizeof(HANDLE)); return (PHANDLE)this; }
-	operator bool() { return h.get() != NULL && h.get() != INVALID_HANDLE_VALUE; }
-
-private:
-	struct HandleCleaner { void operator()(void* h) { if (h != INVALID_HANDLE_VALUE) HandleCloser()(h); } };
-	std::unique_ptr<void, HandleCleaner> h;
-};
-
 static struct
 {
 	BYTE DUMMY[100];
diff --git a/test/main.cpp b/test/main.cpp
index 14b5810..3535971 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -13,7 +13,7 @@ int& mode = vars.at(0);
 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR, int _)
 {
 	QApplication a(_ = 0, DUMMY);
-	static std::vector<std::unique_ptr<std::remove_pointer_t<HMODULE>, Functor<FreeLibrary>>> extensions;
+	static std::vector<AutoHandle<Functor<FreeLibrary>>> extensions;
 	for (auto file : std::filesystem::directory_iterator(std::filesystem::current_path()))
 		if (file.path().extension() == L".dll"
 			&& (std::stringstream() << std::ifstream(file.path(), std::ios::binary).rdbuf()).str().find("OnNewSentence") != std::string::npos)