Example: https://jsfiddle.net/gingur/u0h2rjae/1/

When generating **child context** with a stateless Component, the context is not available to the children.

*/
var nextMountID = 1;
/**
 * @lends {ReactCompositeComponent.prototype}
 */
var ReactCompositeComponentMixin = {
  /**
   * Base constructor for all composite component.
   *
   * @param {ReactElement} element
   * @final
   * @internal
   */
  construct: function(element) {
    this._currentElement = element;
    this._rootNodeID = null;
    this._instance = null;
    this._hostParent = null;
    this._hostContainerInfo = null;
    
    this._updateBatchNumber = null;
    this._pendingElement = null;
    this._pendingStateQueue = null;
    this._pendingReplaceState = false;
    this._pendingForceUpdate = false;
    this._renderedNodeType = null;
    this._renderedComponent = null;
    this._context = null;
    this._mountOrder = 0;
    this._topLevelWrapper = null;