Stack overflow in misra.py rule 9_x

[Jan Hildenbrand]

The following code leads with the cppcheck v2.6 to a stack overflow in the misra.py

//file.hpp
#include <stdint.h>

template<class Type> class Test
{
public:
    Test(int32_t i) : val((Type)i)
    {
    }

    static Test FromCompileTime(int32_t i)
    {
        return Test(i);
    }

private:
    static inline Test one = FromCompileTime(1);
    Type val;
};

with

//misra.json
{
    "script": "misra.py"
}

and

cppcheck --addon=misra.json file.hpp

Part of the output:

Checking file.hpp ...
Bailing out from checking file.hpp since there was an internal error: Failed to execute 'python3 /usr/share/cppcheck/addons/runaddon.py /usr/share/cppcheck/addons/misra.py --cli file.hpp.dump'. {"file": "file.hpp", "linenr": 6, "column": 18, "severity": "style", "message": "misra violation (use --rule-texts=<file> to get proper output)", "addon": "misra", "errorId": "c2012-2.7", "extra": "Undefined"}
Traceback (most recent call last):
  File "/usr/share/cppcheck/addons/runaddon.py", line 8, in <module>
    runpy.run_path(addon, run_name='__main__')
  File "/usr/lib/python3.8/runpy.py", line 265, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/usr/lib/python3.8/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/usr/share/cppcheck/addons/misra.py", line 4630, in <module>
    main()
  File "/usr/share/cppcheck/addons/misra.py", line 4572, in main
    checker.parseDump(item)
  File "/usr/share/cppcheck/addons/misra.py", line 4243, in parseDump
    self.executeCheck(902, self.misra_9_2, cfg)
  File "/usr/share/cppcheck/addons/misra.py", line 4157, in executeCheck
    check_function(*args)
  File "/usr/share/cppcheck/addons/misra.py", line 2089, in misra_9_2
    misra_9.misra_9_x(self, data, 902)
  File "/usr/share/cppcheck/addons/misra_9.py", line 407, in misra_9_x
    ed = getElementDef(nameToken, rawTokens)
  File "/usr/share/cppcheck/addons/misra_9.py", line 431, in getElementDef
    createRecordChildrenDefs(ed)
  File "/usr/share/cppcheck/addons/misra_9.py", line 474, in createRecordChildrenDefs
    child = getElementDef(variable.nameToken)
  File "/usr/share/cppcheck/addons/misra_9.py", line 431, in getElementDef
    createRecordChildrenDefs(ed)
  File "/usr/share/cppcheck/addons/misra_9.py", line 474, in createRecordChildrenDefs
    child = getElementDef(variable.nameToken)
  File "/usr/share/cppcheck/addons/misra_9.py", line 431, in getElementDef
    createRecordChildrenDefs(ed)
    [...]
     File "/usr/share/cppcheck/addons/misra_9.py", line 474, in createRecordChildrenDefs
    child = getElementDef(variable.nameToken)
  File "/usr/share/cppcheck/addons/misra_9.py", line 431, in getElementDef
    createRecordChildrenDefs(ed)
  File "/usr/share/cppcheck/addons/misra_9.py", line 474, in createRecordChildrenDefs
    child = getElementDef(variable.nameToken)
  File "/usr/share/cppcheck/addons/misra_9.py", line 431, in getElementDef
    createRecordChildrenDefs(ed)
  File "/usr/share/cppcheck/addons/misra_9.py", line 474, in createRecordChildrenDefs
    child = getElementDef(variable.nameToken)
  File "/usr/share/cppcheck/addons/misra_9.py", line 431, in getElementDef
    createRecordChildrenDefs(ed)
  File "/usr/share/cppcheck/addons/misra_9.py", line 474, in createRecordChildrenDefs
    child = getElementDef(variable.nameToken)
  File "/usr/share/cppcheck/addons/misra_9.py", line 430, in getElementDef
    ed = ElementDef("record", nameToken.str, nameToken.valueType)
  File "/usr/share/cppcheck/addons/misra_9.py", line 5, in __init__
    self.name = str(name)
RecursionError: maximum recursion depth exceeded while calling a Python object

Am I doing something wrong?

[Daniel Marjamäki]

The Misra addon is not designed to handle C++ code. I think this problem can be expected.

[Jan Hildenbrand]

Now after you say it, it's rather obvious. Thanks for the fast reply!