Function hasArrayRest

packages/babel-plugin-transform-destructuring/src/util.ts:36–38

* Test if an ArrayPattern's elements contain any RestElements.

(pattern: t.ArrayPattern)

 */

function hasArrayRest(pattern: t.ArrayPattern) {
  return pattern.elements.some(elem => t.isRestElement(elem));
}

/**
 * Test if an ObjectPattern's properties contain any RestElements.