private static void BuildZeroHashes()
{
Span <UInt256> concatenation = stackalloc UInt256[2];
UInt256.CreateFromLittleEndian(out ZeroHashes[0], Hash32.Zero.Bytes);
for (int i = 1; i < 64; i++)
{
var previous = ZeroHashes[i - 1];
MemoryMarshal.CreateSpan(ref previous, 1).CopyTo(concatenation.Slice(0, 1));
MemoryMarshal.CreateSpan(ref previous, 1).CopyTo(concatenation.Slice(1, 1));
UInt256.CreateFromLittleEndian(out ZeroHashes[i], Sha256.Compute(MemoryMarshal.Cast <UInt256, byte>(concatenation)).Bytes);
}
}
public static void Ize(out UInt256 root, Root value)
{
ReadOnlySpan <byte> readOnlyBytes = value.AsSpan();
unsafe
{
fixed(byte *buffer = &readOnlyBytes.GetPinnableReference())
{
Span <byte> apiNeedsWriteableEvenThoughOnlyReading = new Span <byte>(buffer, readOnlyBytes.Length);
UInt256.CreateFromLittleEndian(out root, apiNeedsWriteableEvenThoughOnlyReading);
}
}
}
public static void Ize(out UInt256 root, Hash32 value)
{
UInt256.CreateFromLittleEndian(out root, value.Bytes ?? Hash32.Zero.Bytes);
}
public void AsInt(out UInt256 intRoot)
{
UInt256.CreateFromLittleEndian(out intRoot, Bytes.AsSpan());
}
public static void Ize(out UInt256 root, Sha256 value)
{
UInt256.CreateFromLittleEndian(out root, value?.Bytes ?? Bytes.Zero32);
}