Added node count

Author: mattscepter

lib/core/base/rule.js

@@ -12,6 +12,7 @@ import {
 } from '../utils';
 import { isVisibleToScreenReaders } from '../../commons/dom';
 import constants from '../constants';
+import cache from './cache';
 
 export default function Rule(spec, parentAudit) {
   this._audit = parentAudit;
@@ -245,6 +246,7 @@ Rule.prototype.run = function run(context, options = {}, resolve, reject) {
   try {
     // Matches throws an error when it lacks support for document methods
     nodes = this.gatherAndMatchNodes(context, options);
+    cache.set(this.id, nodes.length);
   } catch (error) {
     // Exit the rule execution if matches fails
     reject(new SupportError({ cause: error, ruleId: this.id }));