Function findTightestNode

packages/language-service/src/utils/ts_utils.ts:31–36

(node: ts.Node, position: number)

 * @param position The target position within the `node`.
 */
export function findTightestNode(node: ts.Node, position: number): ts.Node | undefined {
  if (node.getStart() <= position && position < node.getEnd()) {
    return node.forEachChild((c) => findTightestNode(c, position)) ?? node;
  }
  return undefined;
}

export interface FindOptions<T extends ts.Node> {
  filter: (node: ts.Node) => node is T;