time: use array::from_fn instead of manually creating array

tokio-rs · Nov 30, 2024 · 320b9be · 320b9be
1 parent 38151f3
commit 320b9be
Showing 1 changed file with 1 addition and 77 deletions.
diff --git a/tokio-util/src/time/wheel/level.rs b/tokio-util/src/time/wheel/level.rs
@@ -39,86 +39,10 @@ const LEVEL_MULT: usize = 64;
 
 impl<T: Stack> Level<T> {
     pub(crate) fn new(level: usize) -> Level<T> {
-        // Rust's derived implementations for arrays require that the value
-        // contained by the array be `Copy`. So, here we have to manually
-        // initialize every single slot.
-        macro_rules! s {
-            () => {
-                T::default()
-            };
-        }
-
         Level {
             level,
             occupied: 0,
-            slot: [
-                // It does not look like the necessary traits are
-                // derived for [T; 64].
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-                s!(),
-            ],
+            slot: std::array::from_fn(|_| T::default()),
         }
     }