Fix clippy issues from 1.74 (#3558)

Nothing major

crates/egui/src/context.rs

@@ -73,7 +73,7 @@ impl ContextImpl {
     }
 
     fn request_repaint_after(&mut self, delay: Duration, viewport_id: ViewportId) {
-        let mut viewport = self.viewports.entry(viewport_id).or_default();
+        let viewport = self.viewports.entry(viewport_id).or_default();
 
         // Each request results in two repaints, just to give some things time to settle.
         // This solves some corner-cases of missing repaints on frame-delayed responses.
@@ -2607,7 +2607,7 @@ impl Context {
                 ctx.viewport_parents
                     .insert(new_viewport_id, ctx.viewport_id());
 
-                let mut viewport = ctx.viewports.entry(new_viewport_id).or_default();
+                let viewport = ctx.viewports.entry(new_viewport_id).or_default();
                 viewport.class = ViewportClass::Deferred;
                 viewport.builder = viewport_builder;
                 viewport.used = true;
@@ -2666,7 +2666,7 @@ impl Context {
                 ctx.viewport_parents
                     .insert(new_viewport_id, parent_viewport_id);
 
-                let mut viewport = ctx.viewports.entry(new_viewport_id).or_default();
+                let viewport = ctx.viewports.entry(new_viewport_id).or_default();
                 viewport.builder = builder.clone();
                 viewport.used = true;
                 viewport.viewport_ui_cb = None; // it is immediate

crates/egui/src/util/id_type_map.rs

@@ -119,7 +119,7 @@ impl std::fmt::Debug for Element {
         match &self {
             Self::Value { value, .. } => f
                 .debug_struct("Element::Value")
-                .field("type_id", &value.type_id())
+                .field("type_id", &(**value).type_id())
                 .finish_non_exhaustive(),
             Self::Serialized(SerializedElement {
                 type_id,

crates/egui/src/widgets/text_edit/builder.rs

@@ -802,12 +802,9 @@ impl<'t> TextEdit<'t> {
                             let glyph_count = row.glyphs.len();
                             let mut value = String::new();
                             value.reserve(glyph_count);
-                            let mut character_lengths = Vec::<u8>::new();
+                            let mut character_lengths = Vec::<u8>::with_capacity(glyph_count);
-                            character_lengths.reserve(glyph_count);
+                            let mut character_positions = Vec::<f32>::with_capacity(glyph_count);
-                            let mut character_positions = Vec::<f32>::new();
+                            let mut character_widths = Vec::<f32>::with_capacity(glyph_count);
-                            character_positions.reserve(glyph_count);
-                            let mut character_widths = Vec::<f32>::new();
-                            character_widths.reserve(glyph_count);
                             let mut word_lengths = Vec::<u8>::new();
                             let mut was_at_word_end = false;
                             let mut last_word_start = 0usize;

crates/egui_extras/src/loaders/ehttp_loader.rs

@@ -45,7 +45,7 @@ pub struct EhttpLoader {
 }
 
 impl EhttpLoader {
-    pub const ID: &str = egui::generate_loader_id!(EhttpLoader);
+    pub const ID: &'static str = egui::generate_loader_id!(EhttpLoader);
 }
 
 const PROTOCOLS: &[&str] = &["http://", "https://"];

crates/egui_extras/src/loaders/file_loader.rs

@@ -20,7 +20,7 @@ pub struct FileLoader {
 }
 
 impl FileLoader {
-    pub const ID: &str = egui::generate_loader_id!(FileLoader);
+    pub const ID: &'static str = egui::generate_loader_id!(FileLoader);
 }
 
 const PROTOCOL: &str = "file://";

crates/egui_extras/src/loaders/image_loader.rs

@@ -14,7 +14,7 @@ pub struct ImageCrateLoader {
 }
 
 impl ImageCrateLoader {
-    pub const ID: &str = egui::generate_loader_id!(ImageCrateLoader);
+    pub const ID: &'static str = egui::generate_loader_id!(ImageCrateLoader);
 }
 
 fn is_supported_uri(uri: &str) -> bool {

crates/egui_extras/src/loaders/svg_loader.rs

@@ -14,7 +14,7 @@ pub struct SvgLoader {
 }
 
 impl SvgLoader {
-    pub const ID: &str = egui::generate_loader_id!(SvgLoader);
+    pub const ID: &'static str = egui::generate_loader_id!(SvgLoader);
 }
 
 fn is_supported(uri: &str) -> bool {

crates/epaint/src/util/ordered_float.rs

@@ -35,19 +35,16 @@ impl<T: Float> PartialEq<Self> for OrderedFloat<T> {
 impl<T: Float> PartialOrd<Self> for OrderedFloat<T> {
     #[inline]
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        match self.0.partial_cmp(&other.0) {
+        Some(self.cmp(other))
-            Some(ord) => Some(ord),
-            None => Some(self.0.is_nan().cmp(&other.0.is_nan())),
-        }
     }
 }
 
 impl<T: Float> Ord for OrderedFloat<T> {
     #[inline]
     fn cmp(&self, other: &Self) -> Ordering {
-        match self.partial_cmp(other) {
+        match self.0.partial_cmp(&other.0) {
             Some(ord) => ord,
-            None => unreachable!(),
+            None => self.0.is_nan().cmp(&other.0.is_nan()),
         }
     }
 }