RubySonar - a type inferencer and indexer for Ruby

RubySonar is a type inferencer and indexer for Ruby, which does sophisticated interprocedural analysis to infer types. It is one of the underlying technologies that powers the code search site Sourcegraph.

RubySonar is modeled after PySonar2, which does a similar analysis for Python and has been in use by Sourcegraph and Google. To understand its technical properties, please refer to my blog posts:

• http://yinwang0.wordpress.com/2010/09/12/pysonar
• http://yinwang0.wordpress.com/2013/06/21/pysonar-slides

Demo

How to build

mvn package

System Requirements

• irb

RubySonar uses the irb interpreter to parse Ruby code, so please make sure you have it installed and pointed to by the PATH environment variable.

How to use

RubySonar is mainly designed as a library for IDEs and other developer tools, so its interface may not be as appealing as an end-user tool, but for your understanding of the library's capabilities, a reasonably nice demo program has been built.

You can build a simple "code-browser" of your ruby code with the following command line:

java -jar target/rubysonar-0.1-SNAPSHOT.jar /path/to/project ./html

This will take a few minutes. You should find some interactive HTML files inside the html directory after this process.

Test

For development, you can run the unit tests. RubySonar now has a test framework. You can run the tests using this command:

mvn test

If you modify the code or tests, you need to generate new expected results. Run these command lines:

mvn package -DskipTests
java -classpath target/rubysonar-<version>.jar org.yinwang.rubysonar.Test -generate tests

To write new tests, you just need to write relevant Ruby files, put them into a directory named tests/testname.test(test directory name must end with ".test"). Please look at the tests directory for examples.

License (BSD Style)

RubySonar - a type inferencer and indexer for Ruby

Copyright (c) 2013-2016 Yin Wang

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.