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86 lines
2.2 KiB
86 lines
2.2 KiB
1 year ago
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from collections.abc import Mapping
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from sqlalchemy import exc
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cdef tuple _Empty_Tuple = ()
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cdef inline bint _mapping_or_tuple(object value):
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return isinstance(value, dict) or isinstance(value, tuple) or isinstance(value, Mapping)
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cdef inline bint _check_item(object params) except 0:
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cdef object item
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cdef bint ret = 1
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if params:
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item = params[0]
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if not _mapping_or_tuple(item):
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ret = 0
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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 ret
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def _distill_params_20(object params):
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if params is None:
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return _Empty_Tuple
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elif isinstance(params, list) or isinstance(params, tuple):
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_check_item(params)
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return params
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elif isinstance(params, dict) or isinstance(params, Mapping):
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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(object params):
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if params is None:
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return _Empty_Tuple
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elif isinstance(params, list):
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_check_item(params)
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return params
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elif _mapping_or_tuple(params):
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return [params]
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else:
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raise exc.ArgumentError("mapping or sequence expected for parameters")
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cdef class prefix_anon_map(dict):
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def __missing__(self, str key):
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cdef str derived
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cdef int anonymous_counter
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cdef dict self_dict = self
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derived = key.split(" ", 1)[1]
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anonymous_counter = self_dict.get(derived, 1)
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self_dict[derived] = anonymous_counter + 1
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value = f"{derived}_{anonymous_counter}"
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self_dict[key] = value
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return value
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cdef class cache_anon_map(dict):
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cdef int _index
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def __init__(self):
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self._index = 0
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def get_anon(self, obj):
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cdef long long idself
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cdef str id_
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cdef dict self_dict = self
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idself = id(obj)
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if idself in self_dict:
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return self_dict[idself], True
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else:
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id_ = self.__missing__(idself)
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return id_, False
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def __missing__(self, key):
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cdef str val
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cdef dict self_dict = self
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self_dict[key] = val = str(self._index)
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self._index += 1
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return val
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