code: function _composeTree() {
      var this$1 = this;
  
      this._updateChildNodes(this.host, this._composeNode(this.host));
      var p$ = this._insertionPoints || [];
      for (var i=0, l=p$.length, p, parent; (i<l) && (p=p$[i]); i++) {
        parent = tree.Logical.getParentNode(p);
        if ((parent !== this$1.host) && (parent !== this$1)) {
          this$1._updateChildNodes(parent, this$1._composeNode(parent));
        }
      }
    }
docs: Reify dom such that it is at its correct rendering position based on logical distribution.