gigaherz/eswalker — pull request #1 by darielnoel (2013-09-21 04:45:52+00:00)
Title: Validating ReturnStatement null arguments

Some developers could be write the "return" sentence without arguments like
"return;"

In this case when we call:

this.walkElement(node.argument, node, 'argument');

node.argument will be null. which could be dangerous.

Best Regards