.

node_modules/jsdom/lib/jsdom/living/domparsing/serialization.js

@@ -0,0 +1,36 @@
+"use strict";
+
+const produceXMLSerialization = require("w3c-xmlserializer");
+const parse5 = require("parse5");
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const utils = require("../generated/utils");
+const treeAdapter = require("./parse5-adapter-serialization");
+const NODE_TYPE = require("../node-type");
+
+module.exports.fragmentSerialization = (node, { outer, requireWellFormed, globalObject }) => {
+  const contextDocument =
+    node.nodeType === NODE_TYPE.DOCUMENT_NODE ? node : node._ownerDocument;
+  if (contextDocument._parsingMode === "html") {
+    const config = {
+      ...contextDocument._parseOptions,
+      treeAdapter
+    };
+    return outer ? parse5.serializeOuter(node, config) : parse5.serialize(node, config);
+  }
+
+  const childNodes = outer ? [node] : node.childNodes;
+
+  try {
+    let serialized = "";
+    for (let i = 0; i < childNodes.length; ++i) {
+      serialized += produceXMLSerialization(
+        utils.wrapperForImpl(childNodes[i] || childNodes.item(i)),
+        { requireWellFormed }
+      );
+    }
+    return serialized;
+  } catch (e) {
+    throw DOMException.create(globalObject, [e.message, "InvalidStateError"]);
+  }
+};