Pointer to allocated memory.
| 17 | |
| 18 | |
| 19 | class AllocatedPointer(IterDereferencable[T], BaseAllocatedPointer[T]): |
| 20 | """Pointer to allocated memory.""" |
| 21 | |
| 22 | def __init__( |
| 23 | self, |
| 24 | address: int, |
| 25 | size: int, |
| 26 | assigned: bool = False, |
| 27 | parent: AllocatedPointer[T] | None = None, |
| 28 | ) -> None: |
| 29 | """ |
| 30 | Args: |
| 31 | address: Address of the allocated memory. |
| 32 | size: Size of the allocated memory. |
| 33 | assigned: Whether an object is currently inside the memory. |
| 34 | """ |
| 35 | self._address = address |
| 36 | self._size = size |
| 37 | self._freed = False |
| 38 | self._assigned = assigned |
| 39 | self._parent: AllocatedPointer[T] | None = parent |
| 40 | |
| 41 | def _indexed(self, amount: int) -> AllocatedPointer[T]: |
| 42 | return AllocatedPointer( |
| 43 | self.ensure() + amount, |
| 44 | self.size - amount, |
| 45 | self.assigned, |
| 46 | parent=self._parent, |
| 47 | ) |
| 48 | |
| 49 | def _get_parent(self) -> AllocatedPointer[T]: |
| 50 | parent = self |
| 51 | |
| 52 | while parent._parent: |
| 53 | parent = parent._parent |
| 54 | |
| 55 | return parent |
| 56 | |
| 57 | @property |
| 58 | def freed(self) -> bool: |
| 59 | return self._get_parent()._freed |
| 60 | |
| 61 | @freed.setter |
| 62 | def freed(self, value: bool) -> None: |
| 63 | self._get_parent()._freed = value |
| 64 | |
| 65 | @property |
| 66 | def address(self) -> Optional[int]: |
| 67 | return self._address |
| 68 | |
| 69 | @address.setter |
| 70 | def address(self, value: int) -> None: |
| 71 | self._address = value |
| 72 | |
| 73 | def __repr__(self) -> str: |
| 74 | return f"AllocatedPointer(address={self.address}, size={self.size})" |
| 75 | |
| 76 | def __add__(self, amount: int) -> AllocatedPointer[T]: |