Spiderflunky is a proof-of-concept JS static analysis tool based on Mozilla's SpiderMonkey runtime. It uses SpiderMonkey's Reflect.parse to do the parsing and then takes it from there with a flattened-out form of alias analysis. Ultimately, it will develop into a JS plugin for DXR (http://dxr.allizom.org/).

Build SpiderMonkey's js executable. Check out mozilla-central, and then build the interpreter:

hg clone https://hg.mozilla.org/mozilla-central/ mozilla-central
cd mozilla-central
cd js/src
autoconf213  # must be 2.13
./configure
make
sudo cp dist/bin/js /usr/local/bin/

All you can really do so far is run the tests. Enjoy doing that! :

python setup.py test