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CrossLanguageSpotter: A Library for Detecting Relations in Polyglot Frameworks

The document discusses CrossLanguageSpotter, a library that enables the detection of cross-language relations in software development, particularly in polyglot frameworks. It outlines the benefits of identifying these relations automatically, such as enhancing refactoring, validation, and navigation within codebases. The document also includes examples of techniques and tools for implementing this detection, along with an overview of a presentation given at the 23rd World Wide Web Conference.

Science◦
CrossLanguageSpotter:CrossLanguageSpotter: A Library for Detecting RelationsA Library for Detecting Relations in Polyglot Frameworksin Polyglot Frameworks Federico Tomassetti, Giuseppe Rizzo, Raphaël Troncy @giusepperizzo @rtroncy@raindancer
CREATE TABLE Persons ( ID int, FirstName varchar(255), LastName varchar(255), City varchar(255) ); String query = "select ID, FirstName, LastName, " + "City " + "from " + dbName + ".Persons"; try { ... while (rs.next()) { int id = rs.getInt("ID"); String firstName = rs.getString("FirstName"); String lastName = rs.getString("LastName"); String city= rs.getString("City"); } } catch (SQLException e ) { ...... } data.sql Person.java
CREATE TABLE Persons ( ID int, FirstName varchar(255), LastName varchar(255), City varchar(255) ); String query = "select ID, FirstName, LastName, " + "City " + "from " + dbName + ".Persons"; try { ... while (rs.next()) { int id = rs.getInt("ID"); String firstName = rs.getString("FirstName"); String lastName = rs.getString("LastName"); String city= rs.getString("City"); } } catch (SQLException e ) { (Hopefully it does not happen) } data.sql Person.java
We were able to identify cross- language relations at compile time?
So I am aware that this ID is related to something else If we could automatically identifyIf we could automatically identify cross-language relations we could:cross-language relations we could: - Highlight them- Highlight them - Support refactoring- Support refactoring - Validate them- Validate them - Navigate them- Navigate them
If I change one end, the connected elements are updated If we could automatically identifyIf we could automatically identify cross-language relations we could:cross-language relations we could: - Highlight them- Highlight them - Support refactoring- Support refactoring - Validate them- Validate them - Navigate them- Navigate them
If we could automatically identifyIf we could automatically identify cross-language relations we could:cross-language relations we could: - Highlight them- Highlight them - Support refactoring- Support refactoring - Validate them- Validate them - Navigate them- Navigate them See broken relations as errors
If we could automatically identifyIf we could automatically identify cross-language relations we could:cross-language relations we could: - Highlight them- Highlight them - Support refactoring- Support refactoring - Validate them- Validate them - Navigate them- Navigate them Click to see the other side of the relation
Shared id
Shared id HOW?
Shared id 1. Build ASTs1. Build ASTs 2. Look for pairs of ID2. Look for pairs of ID 3. Understand if each pair is3. Understand if each pair is really related or notreally related or not exploiting the semantic ofexploiting the semantic of the contextthe context HOW?
<ul id="types"> <li ng-repeat="t in types" ng-class="{'selected': t.id == type}"> <a ng-href="#/{{t.id}}">{{t.title}}</a> </li> </ul> var types = [ { id: 'sliding-puzzle', title: 'Sliding puzzle' }, { id: 'word-search-puzzle', title: 'Word search puzzle' } ]; index.html app.js app.controller('slidingAdvancedCtrl', function($scope) { $scope.puzzles = [ { src: './img/misko.jpg', title: 'Miško Hevery', rows: 4, cols: 4 }, { src: './img/igor.jpg', title: 'Igor Minár', rows: 3, cols: 3 }, { src: './img/vojta.jpg', title: 'Vojta Jína', rows: 4, cols: 3 } ]; }); <div ng-repeat="puzzle in puzzles"> <h2>{{puzzle.title}}</h2> … </div>
April 10, 2014 13/2123rd World Wide Web Conference (WWW'14) Dev Track What about web applications? Large use of several programming languages within the same application (HTML, CSS, JS, python, Java, C#, … )
April 10, 2014 14/2123rd World Wide Web Conference (WWW'14) Dev Track
April 10, 2014 15/2123rd World Wide Web Conference (WWW'14) Dev Track Let's pick up an example http://git.io/yh_Q0Q angular-puzzle
April 10, 2014 16/2123rd World Wide Web Conference (WWW'14) Dev Track How to integrate? http://youtu.be/4vi46nCl1Xw
April 10, 2014 17/2123rd World Wide Web Conference (WWW'14) Dev Track CrossLanguageSpotter does the magic AST builder Random Tree Classifier .js .html <p1> <conf> <true> <p2> <conf> <false> … <pn> <conf> <false> Feature Extraction
Embedded AST (prendo immagine da paper) AST Builder
April 10, 2014 19/2123rd World Wide Web Conference (WWW'14) Dev Track Feature Extraction and Relations Spotter Feature Extraction (contextual features) Tomassetti F., Rizzo G., Torchiano M. (2014), Spotting Automatically Cross-Language Relations. In Conference on Software Maintenance, Reengineering and Reverse Engineering (CSMR-WCRE'14), Antwerp, Belgium. <p1> f(1,1) f(1,2) ... <p2> f(2,1) f(2,2) ... … <pn> f(n,1) f(n,2) ... shared_lengthitfidf_shared%_shared_length_min %_shared_length_max diff_minLevenshtein JaccardJaro Tversky <p1> <conf> <true> <p2> <conf> <false> … <pn> <conf> <false> RandomTree (classifier)
April 10, 2014 20/2123rd World Wide Web Conference (WWW'14) Dev Track Principles and experimentally assessed Tomassetti F., Rizzo G., Torchiano M. (2014), Spotting Automatically Cross-Language Relations. In Conference on Software Maintenance, Reengineering and Reverse Engineering (CSMR-WCRE'14), Antwerp, Belgium.
April 10, 2014 21/2123rd World Wide Web Conference (WWW'14) Dev Track Thanks for your time and attention http://www.slideshare.net/giusepperizzo http://git.io/rlHrvg http://youtu.be/4vi46nCl1Xw