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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1
{
/**
* DER TaggedObject - in ASN.1 notation this is any object preceded by
* a [n] where n is some number - these are assumed to follow the construction
* rules (as with sequences).
*/
public class DerTaggedObject
: Asn1TaggedObject
{
/**
* @param tagNo the tag number for this object.
* @param obj the tagged object.
*/
public DerTaggedObject(
int tagNo,
Asn1Encodable obj)
: base(tagNo, obj)
{
}
/**
* @param explicitly true if an explicitly tagged object.
* @param tagNo the tag number for this object.
* @param obj the tagged object.
*/
public DerTaggedObject(
bool explicitly,
int tagNo,
Asn1Encodable obj)
: base(explicitly, tagNo, obj)
{
}
/**
* create an implicitly tagged object that contains a zero
* length sequence.
*/
public DerTaggedObject(
int tagNo)
: base(false, tagNo, DerSequence.Empty)
{
}
internal override string Asn1Encoding
{
get { return Der; }
}
internal override bool EncodeConstructed()
{
throw Platform.CreateNotImplementedException("DerTaggedObject.EncodeConstructed");
//return IsExplicit() || obj.ToAsn1Object().ToDerObject().EncodeConstructed();
}
internal override int EncodedLength(bool withID)
{
throw Platform.CreateNotImplementedException("DerTaggedObject.EncodedLength");
}
internal override void Encode(Asn1OutputStream asn1Out, bool withID)
{
byte[] bytes = obj.GetDerEncoded();
if (explicitly)
{
asn1Out.WriteEncodingDL(withID, Asn1Tags.Constructed | TagClass, TagNo, bytes);
}
else
{
if (withID)
{
// need to mark constructed types... (preserve Constructed tag)
int flags = (bytes[0] & Asn1Tags.Constructed) | TagClass;
asn1Out.WriteIdentifier(true, flags, TagNo);
}
asn1Out.Write(bytes, 1, bytes.Length - 1);
}
}
internal override Asn1Sequence RebuildConstructed(Asn1Object asn1Object)
{
return new DerSequence(asn1Object);
}
}
}
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