Calls to super inside pattern-matching classmethods do not work

[yggdr]

A call to super inside a pattern-matching method that's defined as a classmethod fails with TypeError:

class A:
    @classmethod
    addpattern def method(cls, {'somekey': str()}) = True


class B(A):
    @classmethod
    addpattern def method(cls, {'someotherkey': int(), **rest}) =
        super().method(rest)


B().method({'somekey': 'string', 'someotherkey': 42})

Traceback (most recent call last):
    File "cococlassmethod.py", line 2074, in <module>
      B().method({'somekey': 'string', 'someotherkey': 42})
    File "cococlassmethod.py", line 2070, in method
      return (super().method(rest))
    File "cococlassmethod.py", line 29, in _coconut_super
      return _coconut_py_super(cls, self)
  TypeError: super(type, obj): obj must be an instance or subtype of type

It seems the code that's supposed to make parameterless super() possible on older python versions doesn't handle the pattern-matching part correctly. I looked into this a bit and it seems the part where the super-implementation tries to get the self it fetches some tuple instead.

frame.f_code.co_varnames[0] ==> '_coconut_match_args'
frame.f_locals[frame.f_code.co_varnames[0]] ==> (the-class-I-call-the-super-inside, the-dict-I-pass-into-the-function-to-be-pattern-matched)

What I'm a bit surprised by is that coconut compiles this super even on targets like 3.11 where parameterless super is supported.

[evhub]

This was a very tricky bug; thanks for finding this! Should be all fixed now on coconut-develop>=3.0.0-a_dev23 (pip install -U coconut-develop to get the fix). Fix should make the above code work on any target, and should make super correctly use the built-in super on targets >= 3.

[yggdr]

... I really did not expect to wake up to you having fixed this already. I'm impressed once again, thanks!