# Copyright (c) OpenMMLab. All rights reserved.
import warnings

from mmcv.utils import Registry, build_from_cfg

PRIOR_GENERATORS = Registry('Generator for anchors and points')

ANCHOR_GENERATORS = PRIOR_GENERATORS


def build_prior_generator(cfg, default_args=None):
    return build_from_cfg(cfg, PRIOR_GENERATORS, default_args)


def build_anchor_generator(cfg, default_args=None):
    warnings.warn(
        '``build_anchor_generator`` would be deprecated soon, please use '
        '``build_prior_generator`` ')
    return build_prior_generator(cfg, default_args=default_args)
