Function parityNodeFinder

src/languages/clojure.ts:27–32

* Picks a node by rounding down and using the given parity. This function is * useful for picking the picking eg the key in a sequence of key-value pairs * @param parentFinder The finder to use to determine whether the parent is a * match * @param parity The parity that we're looking for * @ret

(parentFinder: NodeFinder, parity: 0 | 1)

 * @returns A node finder
 */
function parityNodeFinder(parentFinder: NodeFinder, parity: 0 | 1) {
  return indexNodeFinder(
    parentFinder,
    (nodeIndex: number) => Math.floor(nodeIndex / 2) * 2 + parity
  );
}

function mapParityNodeFinder(parity: 0 | 1) {
  return parityNodeFinder(patternFinder("map_lit"), parity);