simplify

packages/svelte/src/internal/client/dom/blocks/each.js

@@ -41,8 +41,6 @@ const LIS_BLOCK = -2;
  * @returns {void}
  */
 function each(anchor_node, collection, flags, key_fn, render_fn, fallback_fn, reconcile_fn) {
-	const is_controlled = (flags & EACH_IS_CONTROLLED) !== 0;
-
 	/** @type {import('#client').EachBlock} */
 	const block = {
 		// dom
@@ -56,7 +54,8 @@ function each(anchor_node, collection, flags, key_fn, render_fn, fallback_fn, re
 		p: /** @type {import('#client').Block} */ (current_block)
 	};
 
-	hydrate_block_anchor(anchor_node, is_controlled);
+	const is_controlled = (flags & EACH_IS_CONTROLLED) !== 0;
+	hydrate_block_anchor(is_controlled ? /** @type {Node} */ (anchor_node.firstChild) : anchor_node);
 
 	/** @type {import('#client').Effect | null} */
 	let fallback = null;

packages/svelte/src/internal/client/dom/hydration.js

@@ -73,33 +73,26 @@ export function get_hydration_fragment(node, insert_text = false) {
 }
 
 /**
- * @param {Text | Comment | Element} anchor_node
+ * @param {Node} node
- * @param {boolean} [is_controlled]
  * @returns {void}
  */
-export function hydrate_block_anchor(anchor_node, is_controlled) {
+export function hydrate_block_anchor(node) {
-	if (hydrating) {
+	if (!hydrating) return;
-		/** @type {Node} */
-		let target_node = anchor_node;
 
-		if (is_controlled) {
+	if (node.nodeType === 8) {
-			target_node = /** @type {Node} */ (target_node.firstChild);
-		}
-		if (target_node.nodeType === 8) {
 		// @ts-ignore
-			let fragment = target_node.$$fragment;
+		let fragment = node.$$fragment;
 		if (fragment === undefined) {
-				fragment = get_hydration_fragment(target_node);
+			fragment = get_hydration_fragment(node);
 		} else {
 			schedule_task(() => {
 				// @ts-expect-error clean up memory
-					target_node.$$fragment = undefined;
+				node.$$fragment = undefined;
 			});
 		}
 		set_current_hydration_fragment(fragment);
 	} else {
-			const first_child = /** @type {Element | null} */ (target_node.firstChild);
+		const first_child = /** @type {Element | null} */ (node.firstChild);
 		set_current_hydration_fragment(first_child === null ? [] : [first_child]);
 	}
 }
-}

packages/svelte/src/internal/client/dom/template.js

@@ -90,7 +90,7 @@ export function svg_template_with_script(svg, return_fragment) {
 function open_template(is_fragment, use_clone_node, anchor, template_element_fn) {
 	if (hydrating) {
 		if (anchor !== null) {
-			hydrate_block_anchor(anchor, false);
+			hydrate_block_anchor(anchor);
 		}
 		// In ssr+hydration optimization mode, we might remove the template_element,
 		// so we need to is_fragment flag to properly handle hydrated content accordingly.