Function getObjKeys

lib/DefinePlugin.js:141–144

* Returns used keys. * @param {DestructuringAssignmentProperties | undefined} properties properties * @returns {Set<string> | undefined} used keys

(properties)

 * @returns {Set<string> | undefined} used keys
 */
function getObjKeys(properties) {
	if (!properties) return;
	return new Set([...properties].map((p) => p.id));
}

/**
 * Whether a value is a nested definition (plain object/array) to recurse into.