parameters: (filename, file_extension, lines, error,
                      extra_check_functions=None)
docstring: Performs lint checks and reports any errors to the given error function.
  
    Args:
      filename: Filename of the file that is being processed.
      file_extension: The extension (dot not included) of the file.
      lines: An array of strings, each representing a line of the file, with the
             last element being empty if the file is terminated with a newline.
      error: A callable to which errors are reported, which takes 4 arguments:
             filename, line number, error level, and message
      extra_check_functions: An array of additional check functions that will be
                             run on each source line. Each function takes 4
                             arguments: filename, clean_lines, line, error
docstring_summary: Performs lint checks and reports any errors to the given error function.
docstring_tokens: Performs lint checks and reports any errors to the given error function .
function: def ProcessFileData(filename, file_extension, lines, error,
                      extra_check_functions=None):
      """Performs lint checks and reports any errors to the given error function.
  
    Args:
      filename: Filename of the file that is being processed.
      file_extension: The extension (dot not included) of the file.
      lines: An array of strings, each representing a line of the file, with the
             last element being empty if the file is terminated with a newline.
      error: A callable to which errors are reported, which takes 4 arguments:
             filename, line number, error level, and message
      extra_check_functions: An array of additional check functions that will be
                             run on each source line. Each function takes 4
                             arguments: filename, clean_lines, line, error
    """
      lines = (['// marker so line numbers and indices both start at 1'] + lines +
               ['// marker so line numbers end in a known way'])
  
      include_state = _IncludeState()
      function_state = _FunctionState()
      nesting_state = NestingState()
  
      ResetNolintSuppressions()
  
      CheckForCopyright(filename, lines, error)
      ProcessGlobalSuppresions(lines)
      RemoveMultiLineComments(filename, lines, error)
      clean_lines = CleansedLines(lines)
  
      if IsHeaderExtension(file_extension):
          CheckForHeaderGuard(filename, clean_lines, error)
  
      for line in xrange(clean_lines.NumLines()):
          ProcessLine(filename, file_extension, clean_lines, line,
                      include_state, function_state, nesting_state, error,
                      extra_check_functions)
          FlagCxx11Features(filename, clean_lines, line, error)
      nesting_state.CheckCompletedBlocks(filename, error)
  
      CheckForIncludeWhatYouUse(filename, clean_lines, include_state, error)
  
      # Check that the .cc file has included its header if it exists.
      if _IsSourceExtension(file_extension):
          CheckHeaderFileIncluded(filename, include_state, error)
  
      # We check here rather than inside ProcessLine so that we see raw
      # lines rather than "cleaned" lines.
      CheckForBadCharacters(filename, lines, error)
  
      CheckForNewlineAtEOF(filename, lines, error)
function_tokens: def ProcessFileData ( filename , file_extension , lines , error , extra_check_functions = None ) : lines = ( [ '// marker so line numbers and indices both start at 1' ] + lines + [ '// marker so line numbers end in a known way' ] ) include_state = _IncludeState ( ) function_state = _FunctionState ( ) nesting_state = NestingState ( ) ResetNolintSuppressions ( ) CheckForCopyright ( filename , lines , error ) ProcessGlobalSuppresions ( lines ) RemoveMultiLineComments ( filename , lines , error ) clean_lines = CleansedLines ( lines ) if IsHeaderExtension ( file_extension ) : CheckForHeaderGuard ( filename , clean_lines , error ) for line in xrange ( clean_lines . NumLines ( ) ) : ProcessLine ( filename , file_extension , clean_lines , line , include_state , function_state , nesting_state , error , extra_check_functions ) FlagCxx11Features ( filename , clean_lines , line , error ) nesting_state . CheckCompletedBlocks ( filename , error ) CheckForIncludeWhatYouUse ( filename , clean_lines , include_state , error ) # Check that the .cc file has included its header if it exists. if _IsSourceExtension ( file_extension ) : CheckHeaderFileIncluded ( filename , include_state , error ) # We check here rather than inside ProcessLine so that we see raw # lines rather than "cleaned" lines. CheckForBadCharacters ( filename , lines , error ) CheckForNewlineAtEOF ( filename , lines , error )