text: /**
   * @licstart The following is the entire license notice for the
   * Javascript code in this page
   *
   * Copyright 2022 Mozilla Foundation
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   * @licend The above is the entire license notice for the
   * Javascript code in this page
   */
  "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.DataHandler = void 0;
  
  var _xfa_object = require("./xfa_object.js");
  
  class DataHandler {
    constructor(root, data) {
      this.data = data;
      this.dataset = root.datasets || null;
    }
  
    serialize(storage) {
      const stack = [[-1, this.data[_xfa_object.$getChildren]()]];
  
      while (stack.length > 0) {
        const last = stack[stack.length - 1];
        const [i, children] = last;
  
        if (i + 1 === children.length) {
          stack.pop();
          continue;
        }
  
        const child = children[++last[0]];
        const storageEntry = storage.get(child[_xfa_object.$uid]);
  
        if (storageEntry) {
          child[_xfa_object.$setValue](storageEntry);
        } else {
          const attributes = child[_xfa_object.$getAttributes]();
  
          for (const value of attributes.values()) {
            const entry = storage.get(value[_xfa_object.$uid]);
  
            if (entry) {
              value[_xfa_object.$setValue](entry);
  
              break;
            }
          }
        }
  
        const nodes = child[_xfa_object.$getChildren]();
  
        if (nodes.length > 0) {
          stack.push([-1, nodes]);
        }
      }
  
      const buf = [`<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">`];
  
      if (this.dataset) {
        for (const child of this.dataset[_xfa_object.$getChildren]()) {
          if (child[_xfa_object.$nodeName] !== "data") {
            child[_xfa_object.$toString](buf);
          }
        }
      }
  
      this.data[_xfa_object.$toString](buf);
  
      buf.push("</xfa:datasets>");
      return buf.join("");
    }
  
  }
  
  exports.DataHandler = DataHandler;