private static NbtDocument Parse(
ReadOnlyMemory <byte> data,
NbtOptions options,
byte[]?extraRentedBytes,
out int bytesConsumed)
{
ReadOnlySpan <byte> dataSpan = data.Span;
var database = new MetadataDb(data.Length);
var stack = new ByteStack <ContainerFrame>(NbtOptions.DefaultMaxDepth, clearOnReturn: false);
var readerState = new NbtReaderState(options);
var reader = new NbtReader(dataSpan, isFinalBlock: true, readerState);
try
{
Parse(ref reader, ref database, ref stack);
bytesConsumed = (int)reader.BytesConsumed;
}
catch
{
database.Dispose();
throw;
}
finally
{
readerState.Dispose();
stack.Dispose();
}
return(new NbtDocument(data, options, database, extraRentedBytes, isDisposable: true));
}
/// <summary>
/// Initializes a new instance of the <see cref="NbtReader"/> structure that
/// processes a read-only span of binary data and indicates whether the input
/// contains all the data to process.
/// </summary>
/// <param name="data">
/// The binary data to process.
/// </param>
/// <param name="isFinalBlock">
/// true to indicate that the input sequence contains the entire data to process;
/// false to indicate that the input span contains partial data with more data to follow.
/// </param>
/// <param name="state">
/// An object that contains the reader state. If this is the first call to the constructor,
/// pass the default state; otherwise, pass the value of the <see cref="CurrentState"/>
/// property from the previous instance of the <see cref="NbtReader"/>.
/// </param>
public NbtReader(ReadOnlySpan <byte> data, bool isFinalBlock, NbtReaderState state) : this()
{
_data = data;
IsFinalBlock = isFinalBlock;
_state = state;
TagType = NbtType.Undefined;
}