What steps will reproduce the problem?
1. Use the following simple test case:

$ cat base.js
 (function() {
  })();

2. Run gjslint on it:

$ gjslint base.js

Internal error in /Users/tony/scratch/delta-2006.08.03/gjslint-example/base.js
Traceback (most recent call last):
  File "build/bdist.macosx-10.6-universal/egg/closure_linter/checkerbase.py", line 190, in CheckLines
    self.__metadata_pass.Process(token)
  File "build/bdist.macosx-10.6-universal/egg/closure_linter/ecmametadatapass.py", line 395, in Process
    self._ProcessToken()
  File "build/bdist.macosx-10.6-universal/egg/closure_linter/ecmametadatapass.py", line 412, in _ProcessToken
    context = (self._ProcessContext() or self._context)
  File "build/bdist.macosx-10.6-universal/egg/closure_linter/ecmametadatapass.py", line 291, in _ProcessContext
    if keyword_token.string in ('if', 'for', 'while'):
AttributeError: 'NoneType' object has no attribute 'string'
0 files checked, no errors found.


What is the expected output? What do you see instead?

I'd expect this to run successfully.

What version of the product are you using? On what operating system?

I installed closure_linter-latest.tar.gz this morning (Sept 1, 2010). I'm using 
Mac OS X 10.6.3, with the native system Python (Python 2.6.1 (r261:67515, Dec 
17 2009, 00:59:15)).