Method union

pwnlib/fmtstr.py:246–263

Combine adjacent writes into a single write. Example: >>> context.clear(endian = "little") >>> pwnlib.fmtstr.AtomWrite(0x0, 0x1, 0x1, 0xff).union(pwnlib.fmtstr.AtomWrite(0x1, 0x1, 0x2, 0x77)) AtomWrite(start=0, size=2, integer=0x201, mask=0x77ff

(self, other)

        return AtomWrite(start, size, integer, mask)

    def union(self, other):
        """
        Combine adjacent writes into a single write.

        Example:

            >>> context.clear(endian = "little")
            >>> pwnlib.fmtstr.AtomWrite(0x0, 0x1, 0x1, 0xff).union(pwnlib.fmtstr.AtomWrite(0x1, 0x1, 0x2, 0x77))
            AtomWrite(start=0, size=2, integer=0x201, mask=0x77ff)
        """
        assert other.start == self.end, "writes to combine must be continous"
        if context.endian == "little":
            newinteger = (other.integer << self.bitsize) | self.integer
            newmask = (other.mask << self.bitsize) | self.mask
        elif context.endian == "big":
            newinteger = (self.integer << other.bitsize) | other.integer
            newmask = (self.mask << other.bitsize) | other.mask
        return AtomWrite(self.start, self.size + other.size, newinteger, newmask)

    def __getslice__(self, i,  j):
        return self.__getitem__(slice(i, j))