Iterator implementations for XPathResult

xpathresult-iterator.es

// Requires ECMAScript 6

"use strict";

XPathResult.prototype[Symbol.iterator] = function* () {
	let node;
	switch (this.resultType) {
		case XPathResult.UNORDERED_NODE_ITERATOR_TYPE:
		case XPathResult.ORDERED_NODE_ITERATOR_TYPE:
			while (node = this.iterateNext()) {
				yield node;
			}
			break;
		
		case XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE:
		case XPathResult.ORDERED_NODE_SNAPSHOT_TYPE:
			for (const node = this.snapshotLength; i < node; i++) {
				yield this.snapshotItem(node);
			}
			break;
	}
};

xpathresult-iterator.js

// Requires JavaScript 1.7

/*jslint white: true, onevar: true, undef: true, nomen: true, eqeqeq: true, bitwise: true,
  regexp: true, strict: true, newcap: true, immed: true, maxerr: 1000, maxlen: 90 */

/*global XPathResult, StopIteration */

"use strict";

XPathResult.prototype.__iterator__ = function (flag) {
	var node, i = 0;
	switch (this.resultType) {
		case XPathResult.UNORDERED_NODE_ITERATOR_TYPE:
		case XPathResult.ORDERED_NODE_ITERATOR_TYPE:
			while (node = this.iterateNext()) {
				i++;
				yield flag ? i : node;
			}
			break;
		
		case XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE:
		case XPathResult.ORDERED_NODE_SNAPSHOT_TYPE:
			for (node = this.snapshotLength; i < node; i++) {
				yield flag ? i : this.snapshotItem(node);
			}
			break;
	}
	throw StopIteration;
};