tidy up

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

@@ -123,17 +123,14 @@ export function empty() {
 /*#__NO_SIDE_EFFECTS__*/
 export function child(node) {
 	const child = first_child_get.call(node);
-	if (hydrating) {
-		// Child can be null if we have an element with a single child, like `<p>{text}</p>`, where `text` is empty
-		if (child === null) {
-			const text = empty();
-			node.appendChild(text);
-			return text;
-		} else {
-			return capture_fragment_from_node(child);
-		}
+	if (!hydrating) return child;
+
+	// Child can be null if we have an element with a single child, like `<p>{text}</p>`, where `text` is empty
+	if (child === null) {
+		return node.appendChild(empty());
 	}
-	return child;
+
+	return capture_fragment_from_node(child);
 }
 
 /**
@@ -144,26 +141,26 @@ export function child(node) {
  */
 /*#__NO_SIDE_EFFECTS__*/
 export function child_frag(node, is_text) {
-	if (hydrating) {
-		const first_node = /** @type {import('#client').TemplateNode[]} */ (node)[0];
+	if (!hydrating) {
+		return first_child_get.call(/** @type {Node} */ (node));
+	}
 
-		// if an {expression} is empty during SSR, there might be no
-		// text node to hydrate — we must therefore create one
-		if (is_text && first_node?.nodeType !== 3) {
-			const text = empty();
-			hydrate_nodes.unshift(text);
-			first_node?.before(text);
-			return text;
-		}
+	const first_node = /** @type {import('#client').TemplateNode[]} */ (node)[0];
 
-		if (first_node !== null) {
-			return capture_fragment_from_node(first_node);
-		}
+	// if an {expression} is empty during SSR, there might be no
+	// text node to hydrate — we must therefore create one
+	if (is_text && first_node?.nodeType !== 3) {
+		const text = empty();
+		hydrate_nodes.unshift(text);
+		first_node?.before(text);
+		return text;
+	}
 
-		return first_node;
+	if (first_node !== null) {
+		return capture_fragment_from_node(first_node);
 	}
 
-	return first_child_get.call(/** @type {Node} */ (node));
+	return first_node;
 }
 
 /**
@@ -175,6 +172,7 @@ export function child_frag(node, is_text) {
 /*#__NO_SIDE_EFFECTS__*/
 export function sibling(node, is_text = false) {
 	const next_sibling = next_sibling_get.call(node);
+
 	if (hydrating) {
 		// if a sibling {expression} is empty during SSR, there might be no
 		// text node to hydrate — we must therefore create one
@@ -183,7 +181,7 @@ export function sibling(node, is_text = false) {
 			if (next_sibling) {
 				const index = hydrate_nodes.indexOf(/** @type {Text | Comment | Element} */ (next_sibling));
 				hydrate_nodes.splice(index, 0, text);
-				/** @type {DocumentFragment} */ (next_sibling.parentNode).insertBefore(text, next_sibling);
+				next_sibling.before(text);
 			} else {
 				hydrate_nodes.push(text);
 			}
@@ -195,6 +193,7 @@ export function sibling(node, is_text = false) {
 			return capture_fragment_from_node(next_sibling);
 		}
 	}
+
 	return next_sibling;
 }