base.py 文件源码

def clone(self, **kwargs):
        """Create a copy of a |ASN.1| type or object.

        Any parameters to the *clone()* method will replace corresponding
        properties of the |ASN.1| object.

        Parameters
        ----------
        tagSet: :py:class:`~pyasn1.type.tag.TagSet`
            Object representing non-default ASN.1 tag(s)

        subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
            Object representing non-default ASN.1 subtype constraint(s)

        sizeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
            Object representing non-default ASN.1 size constraint(s)

        Returns
        -------
        :
            new instance of |ASN.1| type/value

        """
        cloneValueFlag = kwargs.pop('cloneValueFlag', False)

        initilaizers = self.readOnly.copy()
        initilaizers.update(kwargs)

        clone = self.__class__(**initilaizers)

        if cloneValueFlag:
            self._cloneComponentValues(clone, cloneValueFlag)

        return clone