from __future__ import annotations
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import typing
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from typing import Any
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from typing import Mapping
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from typing import Optional
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from typing import Tuple
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from .. import exc
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if typing.TYPE_CHECKING:
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from .interfaces import _CoreAnyExecuteParams
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from .interfaces import _CoreMultiExecuteParams
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from .interfaces import _DBAPIAnyExecuteParams
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from .interfaces import _DBAPIMultiExecuteParams
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_no_tuple: Tuple[Any, ...] = ()
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def _distill_params_20(
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params: Optional[_CoreAnyExecuteParams],
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) -> _CoreMultiExecuteParams:
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if params is None:
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return _no_tuple
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# Assume list is more likely than tuple
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elif isinstance(params, list) or isinstance(params, tuple):
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# collections_abc.MutableSequence): # avoid abc.__instancecheck__
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if params and not isinstance(params[0], (tuple, Mapping)):
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raise exc.ArgumentError(
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"List argument must consist only of tuples or dictionaries"
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)
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return params
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elif isinstance(params, dict) or isinstance(
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# only do immutabledict or abc.__instancecheck__ for Mapping after
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# we've checked for plain dictionaries and would otherwise raise
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params,
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Mapping,
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):
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return [params]
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else:
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raise exc.ArgumentError("mapping or list expected for parameters")
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def _distill_raw_params(
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params: Optional[_DBAPIAnyExecuteParams],
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) -> _DBAPIMultiExecuteParams:
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if params is None:
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return _no_tuple
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elif isinstance(params, list):
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# collections_abc.MutableSequence): # avoid abc.__instancecheck__
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if params and not isinstance(params[0], (tuple, Mapping)):
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raise exc.ArgumentError(
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"List argument must consist only of tuples or dictionaries"
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)
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return params
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elif isinstance(params, (tuple, dict)) or isinstance(
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# only do abc.__instancecheck__ for Mapping after we've checked
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# for plain dictionaries and would otherwise raise
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params,
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Mapping,
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):
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# cast("Union[List[Mapping[str, Any]], Tuple[Any, ...]]", [params])
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return [params] # type: ignore
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else:
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raise exc.ArgumentError("mapping or sequence expected for parameters")
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