react-dom/lib/getHostComponentFromComposite.js

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 */

'use strict';

var ReactNodeTypes = require('./ReactNodeTypes');

function getHostComponentFromComposite(inst) {
  var type;

  while ((type = inst._renderedNodeType) === ReactNodeTypes.COMPOSITE) {
    inst = inst._renderedComponent;
  }

  if (type === ReactNodeTypes.HOST) {
    return inst._renderedComponent;
  } else if (type === ReactNodeTypes.EMPTY) {
    return null;
  }
}

module.exports = getHostComponentFromComposite;