visitor.h:22:  Weird number of spaces at line-start.  Are you using a 2-space indent?  [whitespace/indent] [3]
visitor.h:22:  Line ends in whitespace.  Consider deleting these extra spaces.  [whitespace/end_of_line] [4]
visitor.h:32:  Weird number of spaces at line-start.  Are you using a 2-space indent?  [whitespace/indent] [3]
visitor.h:32:  Line ends in whitespace.  Consider deleting these extra spaces.  [whitespace/end_of_line] [4]
visitor.h:37:  Weird number of spaces at line-start.  Are you using a 2-space indent?  [whitespace/indent] [3]
visitor.h:37:  Line ends in whitespace.  Consider deleting these extra spaces.  [whitespace/end_of_line] [4]
visitor.h:40:  Add #include <unordered_map> for unordered_map<>  [build/include_what_you_use] [4]
visitor.h:41:  Could not find a newline character at the end of the file.  [whitespace/ending_newline] [5]
Done processing visitor.h
Total errors found: 8