Immutable representation of PostgreSQL `range` type.
| 74 | |
| 75 | |
| 76 | class Range(typing.Generic[_RV]): |
| 77 | """Immutable representation of PostgreSQL `range` type.""" |
| 78 | |
| 79 | __slots__ = ('_lower', '_upper', '_lower_inc', '_upper_inc', '_empty') |
| 80 | |
| 81 | _lower: _RV | None |
| 82 | _upper: _RV | None |
| 83 | _lower_inc: bool |
| 84 | _upper_inc: bool |
| 85 | _empty: bool |
| 86 | |
| 87 | def __init__( |
| 88 | self, |
| 89 | lower: _RV | None = None, |
| 90 | upper: _RV | None = None, |
| 91 | *, |
| 92 | lower_inc: bool = True, |
| 93 | upper_inc: bool = False, |
| 94 | empty: bool = False |
| 95 | ) -> None: |
| 96 | self._empty = empty |
| 97 | if empty: |
| 98 | self._lower = self._upper = None |
| 99 | self._lower_inc = self._upper_inc = False |
| 100 | else: |
| 101 | self._lower = lower |
| 102 | self._upper = upper |
| 103 | self._lower_inc = lower is not None and lower_inc |
| 104 | self._upper_inc = upper is not None and upper_inc |
| 105 | |
| 106 | @property |
| 107 | def lower(self) -> _RV | None: |
| 108 | return self._lower |
| 109 | |
| 110 | @property |
| 111 | def lower_inc(self) -> bool: |
| 112 | return self._lower_inc |
| 113 | |
| 114 | @property |
| 115 | def lower_inf(self) -> bool: |
| 116 | return self._lower is None and not self._empty |
| 117 | |
| 118 | @property |
| 119 | def upper(self) -> _RV | None: |
| 120 | return self._upper |
| 121 | |
| 122 | @property |
| 123 | def upper_inc(self) -> bool: |
| 124 | return self._upper_inc |
| 125 | |
| 126 | @property |
| 127 | def upper_inf(self) -> bool: |
| 128 | return self._upper is None and not self._empty |
| 129 | |
| 130 | @property |
| 131 | def isempty(self) -> bool: |
| 132 | return self._empty |
| 133 |
no outgoing calls
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