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Implement formatting for MappingProxyView.info #30

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merged 2 commits into from
Jan 23, 2023
Merged

Implement formatting for MappingProxyView.info #30

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c14b2ab
Add _format_fields_ for MappingProxyObject
ionite34 Jan 23, 2023
bfb7117
Simplify MappingProxyView `mapping` setter
ionite34 Jan 23, 2023
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12 changes: 10 additions & 2 deletions src/einspect/structs/mapping_proxy.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,12 @@

from einspect.structs.deco import struct
from einspect.structs.py_dict import PyDictObject
from einspect.structs.py_object import PyObject
from einspect.structs.py_object import Fields, PyObject
from einspect.types import ptr

__all__ = ("MappingProxyObject",)


_KT = TypeVar("_KT")
_VT_co = TypeVar("_VT_co", covariant=True)

Expand All @@ -21,7 +23,13 @@ class MappingProxyObject(PyObject[MappingProxyType, _KT, _VT_co]):
https://github.com/python/cpython/blob/3.11/Objects/descrobject.c#L1027-L1030
"""

mapping: PyDictObject[_KT, _VT_co]
mapping: ptr[PyDictObject[_KT, _VT_co]]

def _format_fields_(self) -> Fields:
return {
**super()._format_fields_(),
"mapping": "*PyDictObject",
}

@classmethod
def from_object(
Expand Down
3 changes: 1 addition & 2 deletions src/einspect/views/view_mapping_proxy.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
from __future__ import annotations

from ctypes import pointer
from types import MappingProxyType
from typing import TypeVar

Expand Down Expand Up @@ -47,4 +46,4 @@ def mapping(self) -> dict[_KT, _VT]:
@mapping.setter
@unsafe
def mapping(self, value: dict[_KT, _VT]) -> None:
self._pyobject.mapping = pointer(PyDictObject.from_object(value))
self._pyobject.mapping = PyDictObject.from_object(value).with_ref().as_ref()