Function insertCorruptedTextNodeMarkers

packages/core/src/hydration/annotate.ts:865–872

* Physically inserts the comment nodes to ensure empty text nodes and adjacent * text node separators are preserved after server serialization of the DOM. * These get swapped back for empty text nodes or separators once hydration happens * on the client. * * @param corruptedTextNodes The Map of

(
  corruptedTextNodes: Map<HTMLElement, string>,
  doc: Document,
)

 * @param doc The document
 */
function insertCorruptedTextNodeMarkers(
  corruptedTextNodes: Map<HTMLElement, string>,
  doc: Document,
) {
  for (const [textNode, marker] of corruptedTextNodes) {
    textNode.after(doc.createComment(marker));
  }
}

/**
 * Detects whether a given TNode represents a node that