public static int BeaconBlockBodyLength(BeaconBlockBody?container)
{
if (container is null)
{
return(0);
}
int result = BeaconBlockBodyDynamicOffset;
result += Ssz.ProposerSlashingLength * container.ProposerSlashings.Count;
result += Ssz.DepositLength() * container.Deposits.Count;
result += Ssz.VoluntaryExitLength * container.VoluntaryExits.Count;
result += sizeof(uint) * container.AttesterSlashings.Count;
for (int i = 0; i < container.AttesterSlashings.Count; i++)
{
result += Ssz.AttesterSlashingLength(container.AttesterSlashings[i]);
}
result += sizeof(uint) * container.Attestations.Count;
for (int i = 0; i < container.Attestations.Count; i++)
{
result += Ssz.AttestationLength(container.Attestations[i]);
}
return(result);
}
public static void Encode(Span <byte> span, Attestation container)
{
if (span.Length != Ssz.AttestationLength(container))
{
ThrowTargetLength <Attestation>(span.Length, Ssz.AttestationLength(container));
}
int offset = 0;
int dynamicOffset = Ssz.AttestationDynamicOffset;
Encode(span, container.AggregationBits, ref offset, ref dynamicOffset);
Encode(span, container.Data, ref offset);
Encode(span, container.Signature, ref offset);
}
public static void Encode(Span <byte> span, Attestation[] containers)
{
int offset = 0;
int dynamicOffset = containers.Length * VarOffsetSize;
for (int i = 0; i < containers.Length; i++)
{
int currentLength = Ssz.AttestationLength(containers[i]);
Encode(span.Slice(offset, VarOffsetSize), dynamicOffset);
Encode(span.Slice(dynamicOffset, currentLength), containers[i]);
offset += VarOffsetSize;
dynamicOffset += currentLength;
}
}
private static void Encode(Span <byte> span, BeaconBlockBody container, ref int offset)
{
// Semantics of Encode = write container into span at offset, then increase offset by the bytes written
// Static
int dynamicOffset = Ssz.BeaconBlockBodyDynamicOffset;
Encode(span, container.RandaoReveal, ref offset);
Encode(span, container.Eth1Data, ref offset);
Encode(span, container.Graffiti.AsSpan().ToArray(), ref offset);
Encode(span, dynamicOffset, ref offset);
int proposerSlashingsLength = container.ProposerSlashings.Count * Ssz.ProposerSlashingLength;
dynamicOffset += proposerSlashingsLength;
Encode(span, dynamicOffset, ref offset);
int attesterSlashingsLength = container.AttesterSlashings.Sum(x => Ssz.AttesterSlashingLength(x) + VarOffsetSize);
dynamicOffset += attesterSlashingsLength;
Encode(span, dynamicOffset, ref offset);
dynamicOffset += container.Attestations.Sum(x => Ssz.AttestationLength(x) + VarOffsetSize);
Encode(span, dynamicOffset, ref offset);
int depositsLength = container.Deposits.Count * Ssz.DepositLength();
dynamicOffset += depositsLength;
Encode(span, dynamicOffset, ref offset);
int voluntaryExitsLength = container.VoluntaryExits.Count * Ssz.VoluntaryExitLength;
dynamicOffset += voluntaryExitsLength;
// Dynamic
Encode(span.Slice(offset, proposerSlashingsLength), container.ProposerSlashings.ToArray());
offset += proposerSlashingsLength;
Encode(span.Slice(offset, attesterSlashingsLength), container.AttesterSlashings.ToArray());
offset += attesterSlashingsLength;
Encode(span, container.Attestations, ref offset);
Encode(span.Slice(offset, depositsLength), container.Deposits.ToArray());
offset += depositsLength;
EncodeList(span, container.VoluntaryExits, ref offset);
}
private static void Encode(Span <byte> span, Attestation?[]?attestations, ref int offset, ref int dynamicOffset)
{
int length = (attestations?.Length ?? 0) * VarOffsetSize;
if (!(attestations is null))
{
for (int i = 0; i < attestations.Length; i++)
{
length += Ssz.AttestationLength(attestations[i]);
}
}
Encode(span.Slice(offset, VarOffsetSize), dynamicOffset);
Encode(span.Slice(dynamicOffset, length), attestations);
dynamicOffset += length;
offset += VarOffsetSize;
}
private static void Encode(Span <byte> span, IReadOnlyList <Attestation> attestations, ref int offset)
{
// Semantics of Encode = write container into span at offset, then increase offset by the bytes written
// Static
int staticOffset = offset;
int dynamicOffset = attestations.Count * VarOffsetSize;
offset += dynamicOffset;
foreach (Attestation attestation in attestations)
{
int length = Ssz.AttestationLength(attestation);
Encode(span, dynamicOffset, ref staticOffset);
dynamicOffset += length;
Encode(span.Slice(offset, length), attestation);
offset += length;
}
}