From 641ae3a17dc9264caf31581a2449d537f4457e5a Mon Sep 17 00:00:00 2001
From: Jonathan Johnson <jon@khonsulabs.com>
Date: Thu, 21 Dec 2023 07:11:24 -0800
Subject: [PATCH] Debug for WeakDynamic

---
 CHANGELOG.md |  1 +
 src/value.rs | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4877548..0b219b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   This dynamic is also accessible through `RunningWindow::inner_size`, which is
   accessible through contexts passed into various `Widget` functions.
 - `Progress` now implements `Default` by returning `Progress::Indeterminant`.
+- `WeakDynamic<T>` now implements `Debug` when `T` is `Debug`.
 
 ### Fixed
 
diff --git a/src/value.rs b/src/value.rs
index 5abd4a8..0b954c7 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -1205,6 +1205,20 @@ impl<T> WeakDynamic<T> {
         self.0.upgrade().map(Dynamic)
     }
 }
+impl<T> Debug for WeakDynamic<T>
+where
+    T: Debug,
+{
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        if let Some(strong) = self.upgrade() {
+            Debug::fmt(&strong, f)
+        } else {
+            f.debug_tuple("WeakDynamic")
+                .field(&"<pending drop>")
+                .finish()
+        }
+    }
+}
 
 impl<'a, T> From<&'a Dynamic<T>> for WeakDynamic<T> {
     fn from(value: &'a Dynamic<T>) -> Self {