Error while parsing multidimensional array function argument

[Gualor]

I was playing around using this tool on a C++ codebase and I encountered a parsing issue of the line:

class device_iio_utils {
private:
    ...

public:
    ...
    static int get_selftest_available(const char *device_dir, char list[][20]); // <-- this line causes the issue
    ...
};

Here is the traceback:

Traceback (most recent call last):
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\CppHeaderParser\CppHeaderParser.py", line 3107, in __init__
    self._evaluate_stack(tok.type)
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\CppHeaderParser\CppHeaderParser.py", line 3456, in _evaluate_stack
    self._evaluate_method_stack()
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\CppHeaderParser\CppHeaderParser.py", line 2350, in _evaluate_method_stack
    newMethod = CppMethod(
                ^^^^^^^^^^
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\CppHeaderParser\CppHeaderParser.py", line 1136, in __init__
    param = CppVariable(
            ^^^^^^^^^^^^
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\CppHeaderParser\CppHeaderParser.py", line 1257, in __init__
    self["multi_dimensional_array_size"] += "x" + n
                                                  ^
UnboundLocalError: cannot access local variable 'n' where it is not associated with a value

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Scripts\hpp2plantuml.exe\__main__.py", line 7, in <module>
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\hpp2plantuml\hpp2plantuml.py", line 1554, in main
    CreatePlantUMLFile(args.input_files, args.output_file,
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\hpp2plantuml\hpp2plantuml.py", line 1515, in CreatePlantUMLFile
    diag.create_from_file_list(list(set(expand_file_list(file_list_c))))
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\hpp2plantuml\hpp2plantuml.py", line 952, in create_from_file_list
    self._build_helper(file_list, build_from='file_list',
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\hpp2plantuml\hpp2plantuml.py", line 932, in _build_helper
    self.parse_objects(single_input, build_from_single)
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\hpp2plantuml\hpp2plantuml.py", line 1042, in parse_objects
    parsed_header = CppHeaderParser.CppHeader(header_file,
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\msys64\home\gualniel\miniconda3\envs\mlc\Lib\site-packages\CppHeaderParser\CppHeaderParser.py", line 3148, in __init__
    raise_exc(
  File "<string>", line 1, in raise_exc
CppHeaderParser.CppHeaderParser.CppParseError: Not able to parse core/utils.h on line 128 evaluating ';'
Error around: static int get_selftest_available ( const char * device_dir , char list [ ] [ 20 ] )

I am using the tool on MSYS2 environment on Windows11 using Miniconda (Anaconda) with Python 3.12.7.

[thibaultmarin]

hpp2plantuml relies on the robotpy-cppheaderparser package to parse the header files. Your example seemed to work for me with robotpy-cppheaderparser v5.1.1 but fails with v5.1.2.

Since robotpy-cppheaderparser is deprecated, hpp2plantuml should eventually move to cxxheaderparser, it is on my list.