Source code for memobj.property.simple

import struct
from typing import Any, Union

from . import MemoryProperty




class SimpleData(MemoryProperty):
    format_string: Union[str, None] = None

    def __init__(
        self, offset: int | None = None, format_string: Union[str, None] = None
    ):
        super().__init__(offset)
        if format_string is not None:
            self.format_string = format_string

    def _get_format(self) -> str:
        if self.format_string is None:
            raise ValueError(f"None format_string for {self.__class__.__name__}")

        return self.format_string



    def from_memory(self) -> Any:
        return self.read_formatted_from_offset(self._get_format())




    def to_memory(self, value: Any):
        self.write_formatted_to_offset(self._get_format(), value)




    def memory_size(self) -> int:
        return struct.calcsize(self._get_format())






class Char(SimpleData):
    format_string = "c"





class Bool(SimpleData):
    format_string = "?"





class Float(SimpleData):
    format_string = "f"





class Double(SimpleData):
    format_string = "d"





class Signed1(SimpleData):
    format_string = "b"





class Unsigned1(SimpleData):
    format_string = "B"





class Signed2(SimpleData):
    format_string = "h"





class Unsigned2(SimpleData):
    format_string = "H"





class Signed4(SimpleData):
    format_string = "i"





class Unsigned4(SimpleData):
    format_string = "I"





class Signed8(SimpleData):
    format_string = "q"





class Unsigned8(SimpleData):
    format_string = "Q"