add conversion macros

src/lib.rs

@@ -1,4 +1,4 @@
 pub mod opt;
 pub mod ptr;
 
-pub use ptr::OwnRef;
+pub use ptr::{OwnRef, to_own_ref};

src/opt.rs

@@ -40,6 +40,16 @@ impl<T> OwnRef<'_, T> {
 	}
 }
 
+#[macro_export]
+macro_rules! _to_opt_own_ref {
+	($var:ident) => {
+		let mut $var = Some($var);
+		let $var = OwnRef::from_option(&mut $var);
+	};
+}
+
+pub use _to_opt_own_ref as to_own_ref;
+
 #[cfg(test)]
 mod tests {
 	use super::*;

src/ptr.rs

@@ -66,6 +66,16 @@ impl OwnRef<'_, dyn std::any::Any> {
 	}
 }
 
+#[macro_export]
+macro_rules! _to_ptr_own_ref {
+	($var:ident) => {
+		let mut $var = ManuallyDrop::new($var);
+		let $var = unsafe { OwnRef::from_manually_drop(&mut $var) };
+	};
+}
+
+pub use _to_ptr_own_ref as to_own_ref;
+
 #[cfg(test)]
 mod tests {
 	use super::*;