simplify, make non-recursive

packages/svelte/src/internal/client/runtime.js

@@ -615,8 +615,6 @@ function log_effect_stack() {
 }
 
 function infinite_loop_guard() {
-	if (flush_count > 1000) {
-		flush_count = 0;
 	try {
 		e.effect_update_depth_exceeded();
 	} catch (error) {
@@ -648,28 +646,30 @@ function infinite_loop_guard() {
 		}
 	}
 }
-	flush_count++;
-}
 
 /**
  * @param {Array<Effect>} root_effects
  * @returns {void}
  */
 function flush_queued_root_effects(root_effects) {
-	queued_root_effects = [];
-
-	var length = root_effects.length;
-	if (length === 0) {
-		return;
-	}
-	infinite_loop_guard();
-
 	var previously_flushing_effect = is_flushing_effect;
 	is_flushing_effect = true;
-
 	is_flushing = true;
 
 	try {
+		var length = queued_root_effects.length;
+		var flush_count = 0;
+
+		while (queued_root_effects.length > 0) {
+			if (flush_count++ > 1000) {
+				infinite_loop_guard();
+			}
+
+			var root_effects = queued_root_effects;
+			var length = root_effects.length;
+
+			queued_root_effects = [];
+
 			for (var i = 0; i < length; i++) {
 				var effect = root_effects[i];
 
@@ -680,9 +680,6 @@ function flush_queued_root_effects(root_effects) {
 				var collected_effects = process_effects(effect);
 				flush_queued_effects(collected_effects);
 			}
-
-		if (queued_root_effects.length > 0) {
-			flush_queued_root_effects(queued_root_effects);
 		}
 	} finally {
 		is_flushing_effect = previously_flushing_effect;
@@ -851,8 +848,6 @@ function process_effects(effect) {
  * @returns {any}
  */
 export function flush_sync(fn) {
-	infinite_loop_guard();
-
 	is_micro_task_queued = false;
 
 	flush_queued_root_effects(queued_root_effects);