Use AsId everywhere

crates/egui/src/containers/collapsing_header.rs

@@ -1,8 +1,5 @@
-use std::fmt::Debug;
-use std::hash::Hash;
-
 use crate::{
-    Context, Id, InnerResponse, NumExt as _, Rect, Response, Sense, Stroke, TextStyle,
+    AsId, Context, Id, InnerResponse, NumExt as _, Rect, Response, Sense, Stroke, TextStyle,
     TextWrapMode, Ui, UiBuilder, UiKind, UiStackInfo, Vec2, WidgetInfo, WidgetText, WidgetType,
     emath, epaint, pos2, remap, remap_clamp, vec2,
 };
@@ -447,7 +444,7 @@ impl CollapsingHeader {
     /// Explicitly set the source of the [`Id`] of this widget, instead of using title label.
     /// This is useful if the title label is dynamic or not unique.
     #[inline]
-    pub fn id_salt(mut self, id_salt: impl Hash + Debug) -> Self {
+    pub fn id_salt(mut self, id_salt: impl AsId) -> Self {
         self.id_salt = Id::new(id_salt);
         self
     }
@@ -456,7 +453,7 @@ impl CollapsingHeader {
     /// This is useful if the title label is dynamic or not unique.
     #[deprecated = "Renamed id_salt"]
     #[inline]
-    pub fn id_source(mut self, id_salt: impl Hash + Debug) -> Self {
+    pub fn id_source(mut self, id_salt: impl AsId) -> Self {
         self.id_salt = Id::new(id_salt);
         self
     }

crates/egui/src/containers/combo_box.rs

@@ -1,10 +1,9 @@
 use epaint::Shape;
-use std::fmt::Debug;
 
 use crate::{
-    Align2, Context, Id, InnerResponse, NumExt as _, Painter, Popup, PopupCloseBehavior, Rect,
-    Response, ScrollArea, Sense, Stroke, TextStyle, TextWrapMode, Ui, UiBuilder, Vec2, WidgetInfo,
-    WidgetText, WidgetType, epaint, style::StyleModifier, style::WidgetVisuals, vec2,
+    Align2, AsId, Context, Id, InnerResponse, NumExt as _, Painter, Popup, PopupCloseBehavior,
+    Rect, Response, ScrollArea, Sense, Stroke, TextStyle, TextWrapMode, Ui, UiBuilder, Vec2,
+    WidgetInfo, WidgetText, WidgetType, epaint, style::StyleModifier, style::WidgetVisuals, vec2,
 };
 
 #[expect(unused_imports)] // Documentation
@@ -50,7 +49,7 @@ pub struct ComboBox {
 
 impl ComboBox {
     /// Create new [`ComboBox`] with id and label
-    pub fn new(id_salt: impl std::hash::Hash + Debug, label: impl Into<WidgetText>) -> Self {
+    pub fn new(id_salt: impl AsId, label: impl Into<WidgetText>) -> Self {
         Self {
             id_salt: Id::new(id_salt),
             label: Some(label.into()),
@@ -81,7 +80,7 @@ impl ComboBox {
     }
 
     /// Without label.
-    pub fn from_id_salt(id_salt: impl std::hash::Hash + Debug) -> Self {
+    pub fn from_id_salt(id_salt: impl AsId) -> Self {
         Self {
             id_salt: Id::new(id_salt),
             label: Default::default(),
@@ -97,7 +96,7 @@ impl ComboBox {
 
     /// Without label.
     #[deprecated = "Renamed from_id_salt"]
-    pub fn from_id_source(id_salt: impl std::hash::Hash + Debug) -> Self {
+    pub fn from_id_source(id_salt: impl AsId) -> Self {
         Self::from_id_salt(id_salt)
     }
 

crates/egui/src/containers/resize.rs

@@ -1,8 +1,7 @@
 use crate::{
-    Align2, Color32, Context, CursorIcon, Id, NumExt as _, Rect, Response, Sense, Shape, Ui,
+    Align2, AsId, Color32, Context, CursorIcon, Id, NumExt as _, Rect, Response, Sense, Shape, Ui,
     UiBuilder, UiKind, UiStackInfo, Vec2, Vec2b, pos2, vec2,
 };
-use std::fmt::Debug;
 
 #[derive(Clone, Copy, Debug)]
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
@@ -73,13 +72,13 @@ impl Resize {
     /// A source for the unique [`Id`], e.g. `.id_source("second_resize_area")` or `.id_source(loop_index)`.
     #[inline]
     #[deprecated = "Renamed id_salt"]
-    pub fn id_source(self, id_salt: impl std::hash::Hash + Debug) -> Self {
+    pub fn id_source(self, id_salt: impl AsId) -> Self {
         self.id_salt(id_salt)
     }
 
     /// A source for the unique [`Id`], e.g. `.id_salt("second_resize_area")` or `.id_salt(loop_index)`.
     #[inline]
-    pub fn id_salt(mut self, id_salt: impl std::hash::Hash + Debug) -> Self {
+    pub fn id_salt(mut self, id_salt: impl AsId) -> Self {
         self.id_salt = Some(Id::new(id_salt));
         self
     }

crates/egui/src/grid.rs

@@ -1,11 +1,10 @@
 use std::sync::Arc;
 
 use emath::GuiRounding as _;
-use std::fmt::Debug;
 
 use crate::{
-    Align2, Color32, Context, Id, InnerResponse, NumExt as _, Painter, Rect, Region, Style, Ui,
-    UiBuilder, Vec2, vec2,
+    Align2, AsId, Color32, Context, Id, InnerResponse, NumExt as _, Painter, Rect, Region, Style,
+    Ui, UiBuilder, Vec2, vec2,
 };
 
 #[cfg(debug_assertions)]
@@ -325,7 +324,7 @@ pub struct Grid {
 
 impl Grid {
     /// Create a new [`Grid`] with a locally unique identifier.
-    pub fn new(id_salt: impl std::hash::Hash + Debug) -> Self {
+    pub fn new(id_salt: impl AsId) -> Self {
         Self {
             id_salt: Id::new(id_salt),
             num_columns: None,

crates/egui/src/ui.rs

@@ -1,8 +1,7 @@
 #![warn(missing_docs)] // Let's keep `Ui` well-documented.
 #![expect(clippy::use_self)]
 
-use std::fmt::Debug;
-use std::{any::Any, hash::Hash, ops::Deref, sync::Arc};
+use std::{any::Any, ops::Deref, sync::Arc};
 
 use emath::GuiRounding as _;
 use epaint::mutex::RwLock;
@@ -229,7 +228,7 @@ impl Ui {
         &mut self,
         max_rect: Rect,
         layout: Layout,
-        id_salt: impl Hash + Debug,
+        id_salt: impl AsId,
         ui_stack_info: Option<UiStackInfo>,
     ) -> Self {
         self.new_child(
@@ -1002,7 +1001,7 @@ impl Ui {
     /// Use this to generate widget ids for widgets that have persistent state in [`Memory`].
     pub fn make_persistent_id<IdSource>(&self, id_salt: IdSource) -> Id
     where
-        IdSource: Hash + Debug,
+        IdSource: AsId,
     {
         self.id.with(&id_salt)
     }
@@ -1015,7 +1014,7 @@ impl Ui {
     /// Same as `ui.next_auto_id().with(id_salt)`
     pub fn auto_id_with<IdSource>(&self, id_salt: IdSource) -> Id
     where
-        IdSource: Hash + Debug,
+        IdSource: AsId,
     {
         Id::new(self.next_auto_id_salt).with(id_salt)
     }
@@ -2368,7 +2367,7 @@ impl Ui {
     /// ```
     pub fn push_id<R>(
         &mut self,
-        id_salt: impl Hash + Debug,
+        id_salt: impl AsId,
         add_contents: impl FnOnce(&mut Ui) -> R,
     ) -> InnerResponse<R> {
         self.scope_dyn(UiBuilder::new().id_salt(id_salt), Box::new(add_contents))
@@ -2468,7 +2467,7 @@ impl Ui {
     #[inline]
     pub fn indent<R>(
         &mut self,
-        id_salt: impl Hash + Debug,
+        id_salt: impl AsId,
         add_contents: impl FnOnce(&mut Ui) -> R,
     ) -> InnerResponse<R> {
         self.indent_dyn(id_salt, Box::new(add_contents))
@@ -2476,7 +2475,7 @@ impl Ui {
 
     fn indent_dyn<'c, R>(
         &mut self,
-        id_salt: impl Hash + Debug,
+        id_salt: impl AsId,
         add_contents: Box<dyn FnOnce(&mut Ui) -> R + 'c>,
     ) -> InnerResponse<R> {
         assert!(

crates/egui/src/ui_builder.rs

@@ -1,10 +1,9 @@
-use std::fmt::Debug;
-use std::{hash::Hash, sync::Arc};
+use std::sync::Arc;
 
 use crate::ClosableTag;
 #[expect(unused_imports)] // Used for doclinks
 use crate::Ui;
-use crate::{Id, LayerId, Layout, Rect, Sense, Style, UiStackInfo};
+use crate::{AsId, Id, LayerId, Layout, Rect, Sense, Style, UiStackInfo};
 
 /// Build a [`Ui`] as the child of another [`Ui`].
 ///
@@ -40,7 +39,7 @@ impl UiBuilder {
     /// You should give each [`Ui`] an `id_salt` that is unique
     /// within the parent, or give it none at all.
     #[inline]
-    pub fn id_salt(mut self, id_salt: impl Hash + Debug) -> Self {
+    pub fn id_salt(mut self, id_salt: impl AsId) -> Self {
         self.id_salt = Some(Id::new(id_salt));
         self
     }
@@ -55,7 +54,7 @@ impl UiBuilder {
     ///
     /// This is a shortcut for `.id_salt(my_id).global_scope(true)`.
     #[inline]
-    pub fn id(mut self, id: impl Hash + Debug) -> Self {
+    pub fn id(mut self, id: Id) -> Self {
         self.id_salt = Some(id);
         self.global_scope = true;
         self