Add type_name to panic error messages in WidgetPod (#2380)

Author: matthewgapp

CHANGELOG.md

@@ -9,6 +9,8 @@ You can find its changes [documented below](#083---2023-02-28).
 
 ### Added
 
+- Type name is now included in panic error messages in `WidgetPod`. ([#2380] by [@matthewgapp])
+
 ### Changed
 
 ### Deprecated
@@ -787,6 +789,7 @@ Last release without a changelog :(
 [@newcomb-luke]: https://github.com/newcomb-luke
 [@AtomicGamer9523]: https://github.com/AtomicGamer9523
 [@Insprill]: https://github.com/Insprill
+[@matthewgapp]: https://github.com/matthewgapp
 
 [#599]: https://github.com/linebender/druid/pull/599
 [#611]: https://github.com/linebender/druid/pull/611
@@ -1233,6 +1236,7 @@ Last release without a changelog :(
 [#2356]: https://github.com/linebender/druid/pull/2356
 [#2375]: https://github.com/linebender/druid/pull/2375
 [#2378]: https://github.com/linebender/druid/pull/2378
+[#2380]: https://github.com/linebender/druid/pull/2380
 
 [Unreleased]: https://github.com/linebender/druid/compare/v0.8.3...master
 [0.8.3]: https://github.com/linebender/druid/compare/v0.8.2...v0.8.3

druid/src/core.rs

@@ -475,7 +475,8 @@ impl<T: Data, W: Widget<T>> WidgetPod<T, W> {
 
         if !self.is_initialized() {
             debug_panic!(
-                "{:?}: paint method called before receiving WidgetAdded.",
+                "{:?} with widget id {:?}: paint method called before receiving WidgetAdded.",
+                self.inner.type_name(),
                 ctx.widget_id()
             );
             return;
@@ -549,7 +550,8 @@ impl<T: Data, W: Widget<T>> WidgetPod<T, W> {
     ) -> Size {
         if !self.is_initialized() {
             debug_panic!(
-                "{:?}: layout method called before receiving WidgetAdded.",
+                "{:?} with widget id {:?}: layout method called before receiving WidgetAdded.",
+                self.inner.type_name(),
                 ctx.widget_id()
             );
             return Size::ZERO;
@@ -608,7 +610,8 @@ impl<T: Data, W: Widget<T>> WidgetPod<T, W> {
     pub fn event(&mut self, ctx: &mut EventCtx, event: &Event, data: &mut T, env: &Env) {
         if !self.is_initialized() {
             debug_panic!(
-                "{:?}: event method called before receiving WidgetAdded.",
+                "{:?} with widget id {:?}: event method called before receiving WidgetAdded.",
+                self.inner.type_name(),
                 ctx.widget_id()
             );
             return;
@@ -617,8 +620,9 @@ impl<T: Data, W: Widget<T>> WidgetPod<T, W> {
         // log if we seem not to be laid out when we should be
         if self.state.is_expecting_set_origin_call && !event.should_propagate_to_hidden() {
             warn!(
-                "{:?} received an event ({:?}) without having been laid out. \
+                "{:?} with widget id {:?} received an event ({:?}) without having been laid out. \
                 This likely indicates a missed call to set_origin.",
+                self.inner.type_name(),
                 ctx.widget_id(),
                 event,
             );
@@ -1015,7 +1019,8 @@ impl<T: Data, W: Widget<T>> WidgetPod<T, W> {
             }
             _ if !self.is_initialized() => {
                 debug_panic!(
-                    "{:?}: received LifeCycle::{:?} before WidgetAdded.",
+                    "{:?} with widget id {:?}: received LifeCycle::{:?} before WidgetAdded.",
+                    self.inner.type_name(),
                     self.id(),
                     event
                 );
@@ -1149,7 +1154,8 @@ impl<T: Data, W: Widget<T>> WidgetPod<T, W> {
                 (Some(_), None) => self.env = Some(env.clone()),
                 (None, _) => {
                     debug_panic!(
-                        "{:?} is receiving an update without having first received WidgetAdded.",
+                        "{:?} with widget id {:?} is receiving an update without having first received WidgetAdded.",
+                        self.inner.type_name(),
                         self.id()
                     );
                     return;