From aebc110e98dd51749fe5c2dcd8b78344d2c6216b Mon Sep 17 00:00:00 2001
From: Gabor Greif <gabor@dfinity.org>
Date: Fri, 22 Nov 2024 18:27:45 -0300
Subject: [PATCH] perf: use less cycles in `@timer_helper` (#4777)

Since the observation of a `null` in the expiration array means there will be no more found, it is pointless to stay in the loop. I expect 1 expiration per callback in the frequent case.
---
 src/prelude/internals.mo | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/prelude/internals.mo b/src/prelude/internals.mo
index b98be29c768..713b7544ddb 100644
--- a/src/prelude/internals.mo
+++ b/src/prelude/internals.mo
@@ -614,8 +614,8 @@ func @timer_helper() : async () {
 
   for (o in thunks.vals()) {
     switch o {
-      case (?thunk) { ignore thunk() };
-      case _ { }
+      case (?thunk) ignore thunk();
+      case _ return
     }
   }
 };