Function isPathValid

packages/start/src/directives/paths.ts:5–11

(
  path: unknown,
  key: TypeFilter<V>,
)

type TypeFilter<V extends t.Node> = (node: t.Node) => node is V;

export function isPathValid<V extends t.Node>(
  path: unknown,
  key: TypeFilter<V>,
): path is babel.NodePath<V> {
  const node = (path as babel.NodePath).node;
  return node ? key(node) : false;
}

export type NestedExpression =
  | t.ParenthesizedExpression