New jQuery usage rule

lib/tools/jsExecutionTransformer.js

@@ -1,12 +1,14 @@
 var debug = require('debug')('ylt:jsExecutionTransformer');
 
-var offendersHelpers = require('../offendersHelpers');
+var offendersHelpers    = require('../offendersHelpers');
+var Collection          = require('./phantomas/custom_modules/util/collection');
 
 var jsExecutionTransformer = function() {
 
     this.transform = function(data) {
         var javascriptExecutionTree = {};
         var scrollExecutionTree = {};
+        var jQueryFunctionsCollection = new Collection();
         
         var metrics = {
             DOMaccesses: 0,
@@ -17,6 +19,10 @@ var jsExecutionTransformer = function() {
             jQueryNotDelegatedEvent: 0
         };
 
+        var offenders = {
+
+        };
+
         try {
 
             debug('Starting JS execution transformation');
@@ -44,6 +50,7 @@ var jsExecutionTransformer = function() {
 
                     if (node.data.type.indexOf('jQuery - ') === 0) {
                         metrics.jQueryCalls ++;
+                        jQueryFunctionsCollection.push(node.data.type);
                     }
 
                     // Mark errors with an error flag
@@ -78,14 +85,32 @@ var jsExecutionTransformer = function() {
                     // Count the number of DOM accesses, by counting the tree leafs
                     metrics.DOMaccesses += countTreeLeafs(node);
                 });
+
+                // Count the number of different jQuery functions called
+                if (data.toolsResults.phantomas.metrics.jQueryVersionsLoaded) {
+                    metrics.jQueryFunctionsUsed = 0;
+                    offenders.jQueryFunctionsUsed = [];
+
+                    jQueryFunctionsCollection.sort().forEach(function(fnName, cnt) {
+                        if (fnName === 'jQuery - find') {
+                            fnName = 'jQuery - $';
+                        }
+                        metrics.jQueryFunctionsUsed ++;
+                        offenders.jQueryFunctionsUsed.push({
+                            functionName: fnName.substring(9),
+                            count: cnt
+                        });
+                    });
+                }
+
             }
             debug('JS execution transformation complete');
 
 
             debug('Starting scroll execution transformation');
-            scrollExecutionTree = JSON.parse(data.toolsResults.phantomas.offenders.scrollExecutionTree[0]);
-            if (scrollExecutionTree.children) {
-                scrollExecutionTree.children.forEach(function(node) {
+            offenders.scrollExecutionTree = JSON.parse(data.toolsResults.phantomas.offenders.scrollExecutionTree[0]);
+            if (offenders.scrollExecutionTree.children) {
+                offenders.scrollExecutionTree.children.forEach(function(node) {
                     
                     // Mark a event flag
                     if (['documentScroll', 'windowScroll', 'window.onscroll'].indexOf(node.data.type) >= 0) {
@@ -109,9 +134,7 @@ var jsExecutionTransformer = function() {
         
         data.toolsResults.jsExecutionTransformer = {
             metrics: metrics,
-            offenders: {
-                DOMaccessesOnScroll: scrollExecutionTree
-            }
+            offenders: offenders
         };
 
         return data;