Method call

crates/vm/src/builtins/type.rs:2512–2539

(zelf: &Py<Self>, args: FuncArgs, vm: &VirtualMachine)

impl Callable for PyType {
    type Args = FuncArgs;
    fn call(zelf: &Py<Self>, args: FuncArgs, vm: &VirtualMachine) -> PyResult {
        vm_trace!("type_call: {:?}", zelf);

        if zelf.is(vm.ctx.types.type_type) {
            let num_args = args.args.len();
            if num_args == 1 && args.kwargs.is_empty() {
                return Ok(args.args[0].obj_type());
            }
            if num_args != 3 {
                return Err(vm.new_type_error("type() takes 1 or 3 arguments"));
            }
        }

        let obj = if let Some(slot_new) = zelf.slots.new.load() {
            slot_new(zelf.to_owned(), args.clone(), vm)?
        } else {
            return Err(vm.new_type_error(format!("cannot create '{}' instances", zelf.slots.name)));
        };

        if !obj.class().fast_issubclass(zelf) {
            return Ok(obj);
        }

        if let Some(init_method) = obj.class().slots.init.load() {
            init_method(obj.clone(), args, vm)?;
        }
        Ok(obj)
    }
}

impl AsNumber for PyType {