From d43ffc33a2fde20507ed5d125a0b5a9b1dad6184 Mon Sep 17 00:00:00 2001
From: ranfdev <ranfdev@gmail.com>
Date: Thu, 1 Dec 2022 21:26:51 +0100
Subject: [PATCH] Add example for

---
 glib/src/object.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/glib/src/object.rs b/glib/src/object.rs
index 180dbe3b128f..175a193f0b30 100644
--- a/glib/src/object.rs
+++ b/glib/src/object.rs
@@ -290,6 +290,17 @@ impl<T: ObjectType> Cast for T {}
 
 // rustdoc-stripper-ignore-next
 /// Convenience trait mirroring `Cast`, implemented on `Option<Object>` types.
+///
+/// # Example
+/// ```ignore
+/// let widget: Option<Widget> = list_item.child();
+///
+/// // Without using `CastNone`
+/// let label: gtk::Label = widget.unwrap().downcast().unwrap();
+///
+/// // Using `CastNone` we can avoid the first `unwrap()` call
+/// let label: gtk::Label = widget.downcast().unwrap();
+/// ````
 pub trait CastNone: Sized {
     type Inner;
     fn downcast<T: ObjectType>(self) -> Result<T, Self>