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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 4350x 4350x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1447x 1447x 2x 2x 2x 2x 2x 2x 2x 2x 2x 12616x 6045x 6045x 6571x 6571x 6571x 6571x 12616x 5x 5x 6566x 6566x 6566x 6566x 6566x 12616x 39730x 26629x 26629x 26629x 10032x 26629x 16596x 6564x 6564x 6564x 10032x 10032x 10032x 26629x 33166x 33166x 33166x 2x 2x 2x | import { HYDRATION_END, HYDRATION_START } from '../../../constants.js';
/**
* Use this variable to guard everything related to hydration code so it can be treeshaken out
* if the user doesn't use the `hydrate` method and these code paths are therefore not needed.
*/
export let hydrating = false;
/** @param {boolean} value */
export function set_hydrating(value) {
hydrating = value;
}
/**
* Array of nodes to traverse for hydration. This will be null if we're not hydrating, but for
* the sake of simplicity we're not going to use `null` checks everywhere and instead rely on
* the `hydrating` flag to tell whether or not we're in hydration mode at which point this is set.
* @type {import('#client').TemplateNode[]}
*/
export let hydrate_nodes = /** @type {any} */ (null);
/** @param {import('#client').TemplateNode[]} nodes */
export function set_hydrate_nodes(nodes) {
hydrate_nodes = nodes;
}
/**
* This function is only called when `hydrating` is true. If passed a `<!--[-->` opening
* hydration marker, it finds the corresponding closing marker and sets `hydrate_nodes`
* to everything between the markers, before returning the closing marker.
* @param {Node} node
* @returns {Node}
*/
export function hydrate_anchor(node) {
if (node.nodeType !== 8) {
return node;
}
var current = /** @type {Node | null} */ (node);
// TODO this could have false positives, if a user comment consisted of `[`. need to tighten that up
if (/** @type {Comment} */ (current)?.data !== HYDRATION_START) {
return node;
}
/** @type {Node[]} */
var nodes = [];
var depth = 0;
while ((current = /** @type {Node} */ (current).nextSibling) !== null) {
if (current.nodeType === 8) {
var data = /** @type {Comment} */ (current).data;
if (data === HYDRATION_START) {
depth += 1;
} else if (data[0] === HYDRATION_END) {
if (depth === 0) {
hydrate_nodes = /** @type {import('#client').TemplateNode[]} */ (nodes);
return current;
}
depth -= 1;
}
}
nodes.push(current);
}
throw new Error('Expected a closing hydration marker');
}
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