Method: Krypt::ASN1::ASN1Data#tag_class=

Defined in:
ext/krypt/core/krypt_asn1.c

#tag_class=(sym) ⇒ Symbol

  • sym: A Symbol representing the tag class of this ASN1Data.

Must not be nil. See ASN1Data for possible values.

Returns:

  • (Symbol) 


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# File 'ext/krypt/core/krypt_asn1.c', line 704

static VALUE
krypt_asn1_data_set_tag_class(VALUE self, VALUE tag_class)
{
    krypt_asn1_data *data;
    krypt_asn1_header *header;
    int new_tag_class;
    ID new_tc, old_tc;

    int_asn1_data_get(self, data);

    new_tc = SYM2ID(tag_class);
    old_tc = SYM2ID(int_asn1_data_get_tag_class(self));
    if (new_tc == old_tc)
	return tag_class;
    if (new_tc == sKrypt_TC_EXPLICIT && data->default_tag == -1)
	rb_raise(eKryptASN1Error, "Cannot explicitly tag value with unknown default tag");

    header = data->object->header;
    if ((new_tag_class = krypt_asn1_tag_class_for_id(new_tc)) == KRYPT_ERR)
        rb_raise(eKryptASN1Error, "Cannot set tag class");

    header->tag_class = new_tag_class;
    int_invalidate_tag(header);

    if (data->update_cb)
	data->update_cb(data);

    if (int_asn1_handle_explicit_tagging(self, data, new_tc) == KRYPT_ERR)
	rb_raise(eKryptASN1Error, "Tagging explicitly failed");

    int_asn1_data_set_modified(data, 1);
    int_asn1_data_set_tag_class(self, tag_class);

    return tag_class;
}