Some code cleanup

egui/src/lib.rs

@@ -350,21 +350,9 @@ pub use {
 
 // ----------------------------------------------------------------------------
 
-/// `true` if egui was compiled with debug assertions enabled.
-#[cfg(debug_assertions)]
-pub(crate) const fn has_debug_assertions() -> bool {
-    true
-}
-
-/// `true` if egui was compiled with debug assertions enabled.
-#[cfg(not(debug_assertions))]
-pub(crate) const fn has_debug_assertions() -> bool {
-    false
-}
-
 /// Helper function that adds a label when compiling with debug assertions enabled.
 pub fn warn_if_debug_build(ui: &mut crate::Ui) {
-    if crate::has_debug_assertions() {
+    if cfg!(debug_assertions) {
         ui.label(
             crate::Label::new("‼ Debug build ‼")
                 .small()

egui_demo_lib/src/apps/demo/widget_gallery.rs

@@ -205,7 +205,7 @@ impl WidgetGallery {
 }
 
 fn example_plot() -> egui::plot::Plot {
-    let n = 512;
+    let n = 128;
     let curve = egui::plot::Curve::from_values_iter((0..=n).map(|i| {
         use std::f64::consts::TAU;
         let x = egui::remap(i as f64, 0.0..=(n as f64), -TAU..=TAU);

egui_demo_lib/src/wrap_app.rs

@@ -64,14 +64,7 @@ impl epi::App for WrapApp {
 
     fn warm_up_enabled(&self) -> bool {
         // The example windows use a lot of emojis. Pre-cache them by running one frame where everything is open
-        #[cfg(debug_assertions)]
+        cfg!(not(debug_assertions))
-        {
-            false // debug
-        }
-        #[cfg(not(debug_assertions))]
-        {
-            true // release
-        }
     }
 
     fn update(&mut self, ctx: &egui::CtxRef, frame: &mut epi::Frame<'_>) {

epi/src/lib.rs

@@ -246,6 +246,9 @@ pub struct IntegrationInfo {
 /// How to allocate textures (images) to use in [`egui`].
 pub trait TextureAllocator {
     /// Allocate a new user texture.
+    ///
+    /// There is no way to change a texture.
+    /// Instead allocate a new texture and free the previous one with [`Self::free`].
     fn alloc_srgba_premultiplied(
         &mut self,
         size: (usize, usize),