Function linkTNodeInTView

packages/core/src/render3/tnode_manipulation.ts:178–203

(
  tView: TView,
  tNode: TNode,
  currentTNode: TNode | null,
  isParent: boolean,
)

}

function linkTNodeInTView(
  tView: TView,
  tNode: TNode,
  currentTNode: TNode | null,
  isParent: boolean,
) {
  if (tView.firstChild === null) {
    tView.firstChild = tNode;
  }
  if (currentTNode !== null) {
    if (isParent) {
      // FIXME(misko): This logic looks unnecessarily complicated. Could we simplify?
      if (currentTNode.child == null && tNode.parent !== null) {
        // We are in the same view, which means we are adding content node to the parent view.
        currentTNode.child = tNode;
      }
    } else {
      if (currentTNode.next === null) {
        // In the case of i18n the `currentTNode` may already be linked, in which case we don't want
        // to break the links which i18n created.
        currentTNode.next = tNode;
        tNode.prev = currentTNode;
      }
    }
  }
}

/**
 * Constructs a TNode object from the arguments.