def __new__(cls, name: str, bases: list, dictionary: dict) -> object:
slots, original_slots = dictionary.get('__slots__', []), []
for base in bases:
if hasattr(base, "__slots__"):
original_slots += base.__slots__
if '__init__' in dictionary:
init_src = getsource(type.__new__(cls, name, bases, dictionary))
ast = compile(init_src, "", 'exec', _ast.PyCF_ONLY_AST, optimize=2)
for declaration in tuple(ast.body[0].body):
if isinstance(declaration, _ast.FunctionDef):
nombre = declaration.name
if nombre == '__init__':
initbody = declaration.body
for statement in initbody:
if isinstance(statement, _ast.Assign):
for target in statement.targets:
nombrecito = target.attr
if nombrecito not in original_slots:
slots.append(nombrecito)
dictionary['__slots__'] = namedtuple("AutoSlots", slots)(*slots)
dictionary['__doc__'] = dictionary.get(
'__doc__', f"""{name} class from '{dictionary['__module__']}'.
\nInstantiated using Angler AutoSlots MetaClass.
Mutable/writable/readable attributes: {dictionary['__slots__']}
\nThis does not make the {name} class Inmmutable.
\nAdding new attributes via assignments/setattr/etc is Blocked.
\nUses less memory, speeds up attribute accesses and avoid bugs
\nTry to add new attributes to this {name} class will raise:
AttributeError: {name} object has no attribute\n\n""" + __doc__
)
return type.__new__(cls, name, bases, dictionary)
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