Update library/std/src/thread/spawnhook.rs

Co-authored-by: waffle <[email protected]>

Author: m-ou-se

library/std/src/thread/spawnhook.rs

@@ -114,12 +114,9 @@ pub(super) fn run_spawn_hooks(thread: &Thread) -> ChildSpawnHooks {
         snapshot
     });
     // Iterate over the hooks, run them, and collect the results in a vector.
-    let mut next: &Option<Arc<SpawnHook>> = &hooks.first;
-    let mut to_run = Vec::new();
-    while let Some(hook) = next {
-        to_run.push((hook.hook)(thread));
-        next = &hook.next;
-    }
+    let to_run: Vec<_> = std::iter::successors(hooks.first.as_deref(), |hook| hook.next.as_deref())
+        .map(|hook| (hook.hook)(thread))
+        .collect();
     // Pass on the snapshot of the hooks and the results to the new thread,
     // which will then run SpawnHookResults::run().
     ChildSpawnHooks { hooks, to_run }