Method clone

pager_lib/pyasn1/type/base.py:347–372

Create a modified version of |ASN.1| schema or value object. The `clone()` method accepts the same set arguments as |ASN.1| class takes on instantiation except that all arguments of the `clone()` method are optional. Whatever arguments are supplied, they are used to

(self, value=noValue, **kwargs)

        return self._value is not noValue

    def clone(self, value=noValue, **kwargs):
        """Create a modified version of |ASN.1| schema or value object.

        The `clone()` method accepts the same set arguments as |ASN.1|
        class takes on instantiation except that all arguments
        of the `clone()` method are optional.

        Whatever arguments are supplied, they are used to create a copy
        of `self` taking precedence over the ones used to instantiate `self`.

        Note
        ----
        Due to the immutable nature of the |ASN.1| object, if no arguments
        are supplied, no new |ASN.1| object will be created and `self` will
        be returned instead.
        """
        if value is noValue:
            if not kwargs:
                return self

            value = self._value

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

        return self.__class__(value, **initializers)

    def subtype(self, value=noValue, **kwargs):
        """Create a specialization of |ASN.1| schema or value object.