Function findViewNodeOrThrow

src/react/core.ts:622–653

(
  eq: (node: ReactViewTreeNode) => boolean,
  tree: ReactViewTreeNode
)

};

export const findViewNodeOrThrow = (
  eq: (node: ReactViewTreeNode) => boolean,
  tree: ReactViewTreeNode
): ReactViewTreeNode => {
  const aux = (viewNode: ReactViewTreeNode): ReactViewTreeNode | undefined => {
    if (viewNode.kind === "empty-slot") {
      return;
    }
    for (const node of viewNode.childNodes) {
      if (eq(node)) {
        return node;
      }

      const res = aux(node);

      if (res) {
        return res;
      }
    }
  };

  if (eq(tree)) {
    return tree;
  }

  const result = aux(tree);

  if (!result) {
    throw new Error("detached node or wrong id:" + "\n\n");
  }
  return result;
};

const findRenderNode = (
  eq: (node: ReactRenderTreeNode) => boolean,