Static Analysis: use astWalker from ethereum-remix

src/app/staticanalysis/astWalker.js

-'use strict'
-/**
- * Crawl the given AST through the function walk(ast, callback)
- */
-function AstWalker () {
-}
-
-/**
- * visit all the AST nodes
- *
- * @param {Object} ast  - AST node
- * @param {Object or Function} callback  - if (Function) the function will be called for every node.
- *                                       - if (Object) callback[<Node Type>] will be called for
- *                                         every node of type <Node Type>. callback["*"] will be called fo all other nodes.
- *                                         in each case, if the callback returns false it does not descend into children.
- *                                         If no callback for the current type, children are visited.
- */
-AstWalker.prototype.walk = function (ast, callback) {
-  if (callback instanceof Function) {
-    callback = {'*': callback}
-  }
-  if (!('*' in callback)) {
-    callback['*'] = function () { return true }
-  }
-  if (manageCallBack(ast, callback) && ast.children && ast.children.length > 0) {
-    for (var k in ast.children) {
-      var child = ast.children[k]
-      this.walk(child, callback)
-    }
-  }
-}
-
-/**
- * walk the given @astList
- *
- * @param {Object} sourcesList - sources list (containing root AST node)
- * @param {Function} - callback used by AstWalker to compute response
- */
-AstWalker.prototype.walkAstList = function (sourcesList, callback) {
-  var walker = new AstWalker()
-  for (var k in sourcesList) {
-    walker.walk(sourcesList[k].AST, callback)
-  }
-}
-
-function manageCallBack (node, callback) {
-  if (node.name in callback) {
-    return callback[node.name](node)
-  } else {
-    return callback['*'](node)
-  }
-}
-
-module.exports = AstWalker

src/app/staticanalysis/modules/abstractAstView.js

 var common = require('./staticAnalysisCommon')
-// var AstWalker = require('ethereum-remix').util.AstWalker
-var AstWalker = require('../astWalker')
+var AstWalker = require('ethereum-remix').util.AstWalker
 
 function abstractAstView () {
   this.contracts = null

src/app/staticanalysis/staticAnalysisRunner.js

 'use strict'
-// var AstWalker = require('ethereum-remix').util.AstWalker
-var AstWalker = require('./astWalker')
+var AstWalker = require('ethereum-remix').util.AstWalker
 var list = require('./modules/list')
 
 function staticAnalysisRunner () {