groundwork

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

@@ -95,3 +95,28 @@ export function hydrate_anchor(node) {
 	w.hydration_mismatch(location);
 	throw HYDRATION_ERROR;
 }
+
+export function remove_hydrate_nodes() {
+	let node = hydrate_start;
+
+	while (node) {
+		const next = node.nextSibling;
+
+		node.remove();
+		if (node === hydrate_end) break;
+
+		node = /** @type {import('#client').TemplateNode} */ (next);
+	}
+}
+
+/** @deprecated */
+export function hydrate_nodes_to_array() {
+	// TODO get rid of this, just have start/end on effects
+	let node = hydrate_start;
+	const nodes = [node];
+	while (node.nextSibling) {
+		nodes.push((node = /** @type {import('#client').TemplateNode} */ (node.nextSibling)));
+		if (node === hydrate_end) break;
+	}
+	return nodes;
+}

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

@@ -1,4 +1,4 @@
-import { hydrate_nodes, hydrate_start, hydrating } from './hydration.js';
+import { hydrate_nodes, hydrate_nodes_to_array, hydrate_start, hydrating } from './hydration.js';
 import { clone_node, empty } from './operations.js';
 import { create_fragment_from_html } from './reconciler.js';
 import { current_effect } from '../runtime.js';
@@ -6,6 +6,19 @@ import { TEMPLATE_FRAGMENT, TEMPLATE_USE_IMPORT_NODE } from '../../../constants.
 import { effect } from '../reactivity/effects.js';
 import { is_array } from '../utils.js';
 
+/**
+ * @deprecated
+ * @param {boolean} is_fragment
+ */
+function get_hydrate_nodes(is_fragment) {
+	// TODO get rid of this, just have start/end on effects
+	if (is_fragment) {
+		return hydrate_nodes_to_array();
+	}
+
+	return hydrate_start;
+}
+
 /**
  * @template {import("#client").TemplateNode | import("#client").TemplateNode[]} T
  * @param {T} dom