Fix new lints for Rust/Clippy 1.82 (#515)

.github/workflows/release.yml

@@ -137,6 +137,7 @@ jobs:
     needs: [check-ubuntu]
     env:
       ZNG_TP_LICENSES: true
+      PIP_BREAK_SYSTEM_PACKAGES: 1
     steps:
       - name: install cargo-about
         if: ${{ github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true' }}
@@ -149,9 +150,9 @@ jobs:
       - name: install dav1d python deps
         if: ${{ (github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true') && matrix.target == 'x86_64-unknown-linux-gnu' }}
         run: |
-          pip install -U pip --break-system-packages
-          pip install -U wheel setuptools --break-system-packages
-          pip install -U meson ninja --break-system-packages
+          pip install -U pip
+          pip install -U wheel setuptools
+          pip install -U meson ninja
       - name: build dav1d
         if: ${{ (github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true') && matrix.target == 'x86_64-unknown-linux-gnu' }}
         env:
@@ -205,6 +206,7 @@ jobs:
     needs: [check-windows]
     env:
       ZNG_TP_LICENSES: true
+      PIP_BREAK_SYSTEM_PACKAGES: 1
     steps:
       - name: install cargo-about
         if: ${{ github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true' }}
@@ -220,9 +222,9 @@ jobs:
       - name: install dav1d python deps
         if: ${{ (github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true') && matrix.target == 'x86_64-pc-windows-msvc' }}
         run: |
-          pip install -U pip --break-system-packages
-          pip install -U wheel setuptools --break-system-packages
-          pip install -U meson ninja --break-system-packages
+          pip install -U pip
+          pip install -U wheel setuptools
+          pip install -U meson ninja
       - name: setup dav1d env
         if: ${{ (github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true') && matrix.target == 'x86_64-pc-windows-msvc' }}
         shell: bash
@@ -284,6 +286,7 @@ jobs:
     needs: [check-macos]
     env:
       ZNG_TP_LICENSES: true
+      PIP_BREAK_SYSTEM_PACKAGES: 1
     steps:
       - name: install cargo-about
         if: ${{ github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true' }}
@@ -296,9 +299,9 @@ jobs:
       - name: install dav1d python deps
         if: ${{ github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true' }}
         run: |
-          pip install -U pip --break-system-packages
-          pip install -U wheel setuptools --break-system-packages
-          pip install -U meson ninja --break-system-packages
+          pip install -U pip
+          pip install -U wheel setuptools
+          pip install -U meson ninja
       - name: build dav1d
         if: ${{ github.event.inputs.skip_tests != 'true' || github.event.inputs.skip_release != 'true' }}
         env:

CHANGELOG.md

@@ -1,5 +1,6 @@
 # Unreleased
 
+* Add `FrameBuilder::render_widgets` and `render_update_widgets` to `FrameBuilder` and `FrameUpdate` to inspect external render requests.
 * Implement support for raster and svg emojis.
 * Add `FontFace::ttf` to quickly access the full parsed TTF data.
 * Add `has_raster_images` and `has_svg_images` method to `FontFace` and `ShapedText`.

crates/zng-app-context/src/lib.rs

@@ -1688,7 +1688,6 @@ impl<F: FnOnce()> Drop for RunOnDrop<F> {
     }
 }
 
-#[expect(clippy::manual_unwrap_or)] // false positive, already fixed remove when Rust 1.82 is released
 fn panic_str<'s>(payload: &'s Box<dyn std::any::Any + Send + 'static>) -> &'s str {
     if let Some(s) = payload.downcast_ref::<&str>() {
         s

crates/zng-app/src/render.rs

@@ -2736,6 +2736,11 @@ impl FrameUpdate {
         take_or_append(&mut self.extensions, &mut nested.extensions);
     }
 
+    /// External render update requests for this frame.
+    pub fn render_update_widgets(&self) -> &Arc<RenderUpdates> {
+        &self.render_update_widgets
+    }
+
     /// Finalize the update.
     ///
     /// Returns the property updates and the new clear color if any was set.

crates/zng-app/src/running.rs

@@ -1419,11 +1419,13 @@ impl AppEventSender {
         (Self(sender), receiver)
     }
 
+    #[allow(clippy::result_large_err)] // error does not move far up the stack
     fn send_app_event(&self, event: AppEvent) -> Result<(), AppDisconnected<AppEvent>> {
         self.0.send(event)?;
         Ok(())
     }
 
+    #[allow(clippy::result_large_err)]
     fn send_view_event(&self, event: zng_view_api::Event) -> Result<(), AppDisconnected<AppEvent>> {
         self.0.send(AppEvent::ViewEvent(event))?;
         Ok(())

crates/zng-ext-font/src/lib.rs

@@ -3151,7 +3151,7 @@ impl WhiteSpace {
             WhiteSpace::Preserve => Cow::Borrowed(text),
             WhiteSpace::Merge => {
                 let is_white_space = |c: char| c.is_whitespace() && !"\n\r\u{85}".contains(c);
-                let t = text.trim_matches(&is_white_space);
+                let t = text.trim_matches(is_white_space);
 
                 let mut prev_space = false;
                 for c in t.chars() {

crates/zng-ext-window/src/control.rs

@@ -1172,13 +1172,10 @@ impl HeadedCtrl {
             extensions: WINDOWS.take_view_extensions_init(window_id),
         };
 
-        match VIEW_PROCESS.open_window(request) {
-            Ok(()) => {
-                self.state = Some(state);
-                self.waiting_view = true;
-            }
-            Err(ViewProcessOffline) => {} //respawn
-        };
+        if let Ok(()) = VIEW_PROCESS.open_window(request) {
+            self.state = Some(state);
+            self.waiting_view = true;
+        } // else respawn
     }
 
     /// Layout for already open window.
@@ -1300,9 +1297,8 @@ impl HeadedCtrl {
             extensions: WINDOWS.take_view_extensions_init(window_id),
         };
 
-        match VIEW_PROCESS.open_window(request) {
-            Ok(()) => self.waiting_view = true,
-            Err(ViewProcessOffline) => {} // respawn.
+        if let Ok(()) = VIEW_PROCESS.open_window(request) {
+            self.waiting_view = true
         }
     }
 
@@ -1649,9 +1645,8 @@ impl HeadlessWithRendererCtrl {
                 extensions: WINDOWS.take_view_extensions_init(window_id),
             });
 
-            match r {
-                Ok(()) => self.waiting_view = true,
-                Err(ViewProcessOffline) => {} // respawn
+            if let Ok(()) = r {
+                self.waiting_view = true
             }
         }
 

crates/zng-state-map/src/lib.rs

@@ -480,7 +480,6 @@ pub mod state_map {
     {
         /// Ensures a value is in the entry by inserting the default value if empty,
         /// and returns a mutable reference to the value in the entry.
-        #[expect(clippy::unwrap_or_default)]
         pub fn or_default(self) -> &'a mut T {
             self.or_insert_with(Default::default)
         }

crates/zng-task/src/crate_util.rs

@@ -1,5 +1,4 @@
 /// Converts a [`std::panic::catch_unwind`] payload to a str.
-#[expect(clippy::manual_unwrap_or)] // false positive, already fixed for Rust 1.82
 pub fn panic_str<'s>(payload: &'s Box<dyn std::any::Any + Send + 'static>) -> &'s str {
     if let Some(s) = payload.downcast_ref::<&str>() {
         s

crates/zng-var/src/animation/easing.rs

@@ -180,7 +180,6 @@ impl fmt::Debug for EasingFn {
 }
 impl EasingFn {
     /// Create a closure that calls the easing function.
-    #[expect(clippy::redundant_closure)] // false positive
     pub fn ease_fn(&self) -> impl Fn(EasingTime) -> EasingStep + Send + Sync + 'static {
         let me = self.clone();
         move |t| me(t)

crates/zng/src/window.rs

@@ -91,6 +91,7 @@
 //!         };
 //!     }
 //! }
+//! # fn main() { }
 //! ```
 //!
 //! # Full API