89 lines
3.9 KiB
JavaScript
89 lines
3.9 KiB
JavaScript
var debug = require('debug')('ylt:jsExecutionTransformer');
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var offendersHelpers = require('../offendersHelpers');
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var jsExecutionTransformer = function() {
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this.transform = function(data) {
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var javascriptExecutionTree = {};
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debug('Starting JS execution transformation');
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try {
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javascriptExecutionTree = JSON.parse(data.toolsResults.phantomas.offenders.javascriptExecutionTree[0]);
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if (javascriptExecutionTree.children) {
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javascriptExecutionTree.children.forEach(function(node) {
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// Mark abnormal things with a warning flag
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var contextLenght = (node.data.callDetails && node.data.callDetails.context) ? node.data.callDetails.context.length : null;
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if ((node.data.type === 'jQuery - bind' && contextLenght > 5) ||
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node.data.resultsNumber === 0 ||
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contextLenght === 0) {
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node.warning = true;
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}
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// Mark errors with an error flag
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if (node.data.type === 'error' || node.data.type === 'jQuery version change') {
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node.error = true;
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}
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// Mark a performance flag
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if (['domInteractive', 'domContentLoaded', 'domContentLoadedEnd', 'domComplete'].indexOf(node.data.type) >= 0) {
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node.windowPerformance = true;
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}
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// Read the execution tree and adjust the navigation timings (cause their not very well synchronised)
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switch(node.data.type) {
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case 'domInteractive':
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data.toolsResults.phantomas.metrics.domInteractive = node.data.timestamp;
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break;
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case 'domContentLoaded':
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data.toolsResults.phantomas.metrics.domContentLoaded = node.data.timestamp;
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break;
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case 'domContentLoadedEnd':
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data.toolsResults.phantomas.metrics.domContentLoadedEnd = node.data.timestamp;
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break;
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case 'domComplete':
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data.toolsResults.phantomas.metrics.domComplete = node.data.timestamp;
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break;
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}
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// Change the list of dom paths into a tree
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treeRecursiveParser(node, function(node) {
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if (node.data.callDetails && node.data.callDetails.context && node.data.callDetails.context.length > 0) {
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node.data.callDetails.context.elements = node.data.callDetails.context.elements.map(offendersHelpers.domPathToDomElementObj, offendersHelpers);
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}
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if (node.data.type === 'appendChild' || node.data.type === 'insertBefore') {
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node.data.callDetails.arguments[0] = offendersHelpers.domPathToDomElementObj(node.data.callDetails.arguments[0]);
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}
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if (node.data.type === 'insertBefore') {
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node.data.callDetails.arguments[1] = offendersHelpers.domPathToDomElementObj(node.data.callDetails.arguments[1]);
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}
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});
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});
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}
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debug('JS execution transformation complete');
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} catch(err) {
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throw err;
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}
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return javascriptExecutionTree;
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};
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function treeRecursiveParser(node, fn) {
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if (node.children) {
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node.children.forEach(function(child) {
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treeRecursiveParser(child, fn);
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});
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}
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fn(node);
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}
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};
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module.exports = new jsExecutionTransformer(); |