Function maybeFastPath

lib/internal/promise_hooks.js:70–72

(list, runAll)

const settledAll = makeRunHook(hooks.settled);

function maybeFastPath(list, runAll) {
  return list.length > 1 ? runAll : list[0];
}

function update() {
  const init = maybeFastPath(hooks.init, initAll);