cache.py 文件源码

def create_master_instance(self, gen_cls, lib_name, params, used_cell_names, **kwargs):
        # type: (Type[MasterType], str, Dict[str, Any], Set[str], **kwargs) -> MasterType
        """Create a new non-finalized master instance.

        This instance is used to determine if we created this instance before.

        Parameters
        ----------
        gen_cls : Type[MasterType]
            the generator Python class.
        lib_name : str
            generated instance library name.
        params : Dict[str, Any]
            instance parameters dictionary.
        used_cell_names : Set[str]
            a set of all used cell names.
        **kwargs
            optional arguments for the generator.

        Returns
        -------
        master : MasterType
            the non-finalized generated instance.
        """
        raise NotImplementedError('not implemented')